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Contact Details
- Phone
- +64 3 474 0999 extn 58538
- rob.walker@otago.ac.nz
University Links
- Position
- Professor, Mary Glendining Chair in Medicine
- Department
- Department of Medicine (Dunedin)
- Qualifications
- MB ChB MD(Otago) FRACP FASN FAHA
- Research summary
- Kidney health and disease
- Memberships
- Member International Society of Nephrology Nexus and Forefronts programme committee.
- KDIGO lipid guidelines committee, CARI guidelines committee - Cardiovascular risk factors in renal disease.
- Member CARI guidelines committee - Dialysis adequacy.
- Honorary Secretary and Member Executive Council ASPN, with a strong interest in developing the links between Australia and New Zealand with South East Asia and the Pacific.
- Clinical
- Nephrology
- Cardiovascular outcomes in kidney disease
- Dialysis outcomes in the elderly
- Acute kidney injury
- Diabetic kidney disease
Research
Clinical research including cardiovascular risk factors associated with CKD; hypertension, obesity and inflammation; drug induced nephrotoxicity; drugs, exercise and kidney function; acute kidney injury; dialysis outcomes in the elderly.
Basic science research focused upon mechanisms of chronic interstitial fibrosis in a chronic-lithium animal model.
Funders include Health Research Council NZ, Lotteries Health, Kidney Health NZ, Otago Medical Research Foundation.
Over 180 publications.
Additional details
Director University of Otago Research Theme: The Kidney in Health and Disease.
Publications
Florance, J. A., Schollum, J. B. W., Pomeranc, A., Endre, Z. H., & Walker, R. J. (2024). Autosomal dominant hypercalciuric hypocalcaemia: The calcium-sensing receptor in renal calcium homeostasis and the impact of renal transplantation. Internal Medicine Journal. Advance online publication. doi: 10.1111/imj.16403 Journal - Research Other
Cashmore, B., Tunnicliffe, D. J., Palmer, S., Blythen, L., Boag, J., Kostner, K., … Patu, M., … Walker, R., on behalf of the CARI Guidelines Steering Committee. (2024). Australian and New Zealand Living Guideline cholesterol-lowering therapy for people with chronic kidney disease (CARI Guidelines): Reducing the evidence-practice gap. Nephrology. Advance online publication. doi: 10.1111/nep.14295 Journal - Research Article
Wilson, L. C., Ward, J., Wright, D. F. B., Green, S. C., Stocker, S. L., Putt, T. L., Schollum, J. B. W., & Walker, R. J. (2024). The impact of peritoneal dialysis on oxypurinol and urate elimination in people with gout. Nephrology. Advance online publication. doi: 10.1111/nep.14306 Journal - Research Other
Francis, A., Wainstein, M., Irish, G., Hafidz, M. I. A., Chen, T., Cho, Y., … and the Regional Board and ISN-GKHA Team Authors, including Walker, R. (2024). Capacity for the management of kidney failure in the International Society of Nephrology Oceania and South East Asia (OSEA) region: Report from the 2023 ISN Global Kidney Health Atlas (ISN-GKHA). Kidney International Supplements, 13, 110-122. doi: 10.1016/j.kisu.2024.01.004 Journal - Research Article
Wang, D.-X., Bao, S.-Y., Song, N.-N., Chen, W.-Z., Ding, X.-Q., Walker, R. J., & Fang, Y. (2024). FTO-mediated m6A mRNA demethylation aggravates renal fibrosis by targeting RUNX1 and further enhancing PI3K/AKT pathway. FASEB Journal, 38, e23436. doi: 10.1096/fj.202302041R Journal - Research Article
2024
Journal - Research Article
Cashmore, B., Tunnicliffe, D. J., Palmer, S., Blythen, L., Boag, J., Kostner, K., … Patu, M., … Walker, R., on behalf of the CARI Guidelines Steering Committee. (2024). Australian and New Zealand Living Guideline cholesterol-lowering therapy for people with chronic kidney disease (CARI Guidelines): Reducing the evidence-practice gap. Nephrology. Advance online publication. doi: 10.1111/nep.14295
Francis, A., Wainstein, M., Irish, G., Hafidz, M. I. A., Chen, T., Cho, Y., … and the Regional Board and ISN-GKHA Team Authors, including Walker, R. (2024). Capacity for the management of kidney failure in the International Society of Nephrology Oceania and South East Asia (OSEA) region: Report from the 2023 ISN Global Kidney Health Atlas (ISN-GKHA). Kidney International Supplements, 13, 110-122. doi: 10.1016/j.kisu.2024.01.004
Wang, D.-X., Bao, S.-Y., Song, N.-N., Chen, W.-Z., Ding, X.-Q., Walker, R. J., & Fang, Y. (2024). FTO-mediated m6A mRNA demethylation aggravates renal fibrosis by targeting RUNX1 and further enhancing PI3K/AKT pathway. FASEB Journal, 38, e23436. doi: 10.1096/fj.202302041R
Journal - Research Other
Florance, J. A., Schollum, J. B. W., Pomeranc, A., Endre, Z. H., & Walker, R. J. (2024). Autosomal dominant hypercalciuric hypocalcaemia: The calcium-sensing receptor in renal calcium homeostasis and the impact of renal transplantation. Internal Medicine Journal. Advance online publication. doi: 10.1111/imj.16403
Wilson, L. C., Ward, J., Wright, D. F. B., Green, S. C., Stocker, S. L., Putt, T. L., Schollum, J. B. W., & Walker, R. J. (2024). The impact of peritoneal dialysis on oxypurinol and urate elimination in people with gout. Nephrology. Advance online publication. doi: 10.1111/nep.14306
2023
Chapter in Book - Research
Ground, M., Callon, K., Walker, R., Milsom, P., & Cornish, J. (2023). Valvular interstitial cells: Physiology, isolation, and culture. In S. Basu, A. Ranjan & S. Sur (Eds.), Technologies in cell culture: A journal from basics to advanced applications. InTech Open. doi: 10.5772/intechopen.112649
Journal - Research Article
Strand, V., Jayne, D. R. W., Horomanski, A., Yue, H., Bekker, P., Merkel, P. A., on behalf of the ADVOCATE Study Group, including Walker, R. (2023). The impact of treatment with avacopan on health-related quality of life in antineutrophil cytoplasmic antibody-associated vasculitis: A post-hoc analysis of data from the ADVOCATE trial. Lancet Rheumatology, 5(8), e451-e460. doi: 10.1016/S2665-9913(23)00092-9
Au, A. Y. M., Mantik, K., Bahadory, F., Stathakis, P., Guiney, H., Erlich, J., Walker, R., Poulton, R., … Endre, Z. H. (2023). Plasma arginine metabolites in health and chronic kidney disease. Nephrology Dialysis Transplantation, 38, 2767-2775. doi: 10.1093/ndt/gfad108
Hegerty, K., Jaure, A., Scholes-Robertson, N., Howard, K., Ju, A., Evangelidis, N., … on behalf of INCremental dialysis to improve Health outcomes people starting Hemodialysis (INCH-HD) investigators including, Walker, R., Wyeth, E., & Wilson, L. (2023). Australian workshops on patients’ perspectives on hemodialysis and incremental start. Kidney International Reports, 8, 478-488. doi: 10.1016/j.ekir.2022.11.012
Chan, R., Walker, R. J., Samaranayaka, A., & Schollum, J. B. W. (2023). Long-term impact of early non-infectious complications at the initiation of peritoneal dialysis. Peritoneal Dialysis International, 43(1), 53-63. doi: 10.1177/08968608221132647
Talbot, B., Cass, A., Walker, R., Hooi, L., Jardine, M., Jung, M., … Gallagher, M. (2023). Comparing survival in patients with chronic kidney disease across three countries: Results from the study of heart and renal protection-extended review. Nephrology, 28, 36-43. doi: 10.1111/nep.14127
Guiney, H., Walker, R., Broadbent, J., Caspi, A., Goodin, E., Kokaua, J., … Robertson, S., Theodore, R., Poulton, R., & Endre, Z. (2023). Kidney-function trajectories from young adulthood to midlife: Identifying risk strata and opportunities for intervention. Kidney International Reports, 8, 51-63. doi: 10.1016/j.ekir.2022.10.005
Journal - Research Other
Perl, J., Brown, E. A., Chan, C. T., Couchoud, C., Davies, S. J., Kazancioğlu, R., … for Conference Participants, including Walker, R. J. (2023). Home dialysis: Conclusions from a Kidney Disease: Improving Global Outcomes (KDIGO) controversies conference [Conference report]. Kidney International, 103, 842-858. doi: 10.1016/j.kint.2023.01.006
Wu, H., Chinnadurai, R., Walker, R. J., & Tennankore, K. K. (2023). Is it time to integrate frailty assessment in onconephrology. Cancers, 15, 1674. doi: 10.3390/cancers15061674
Other Research Output
CARI Living Guideline Lipid Working Group, including Walker, R., Palmer, S. & Patu, M. (2023). CARI Living Guidelines: Management of cholesterol-lowering therapy in people with chronic kidney disease. 38p. Retrieved from https://www.cariguidelines.org/
2022
Journal - Research Article
Mehta, P. M., Gimenez, G., Walker, R. J., & Slatter, T. L. (2022). Reduction of lithium induced interstitial fibrosis on co-administration with amiloride. Scientific Reports, 12(1), 14598. doi: 10.1038/s41598-022-18825-1
Heath, L., Egan, R., Iosua, E., Walker, R., Ross, J., & MacLeod, R. (2022). Palliative and end of life care in undergraduate medical education: A survey of New Zealand medical schools. BMC Medical Education, 22(1), 530. doi: 10.1186/s12909-022-03593-3
Ground, M., Waqanivavalagi, S., Park, Y.-E., Callon, K., Walker, R., Milsom, P., & Cornish, J. (2022). Fibroblast growth factor 2 inhibits myofibroblastic activation of valvular interstitial cells. PLoS ONE, 17(6), e0270227. doi: 10.1371/journal.pone.0270227
Butcher, E., Walker, R., Wyeth, E., Samaranayaka, A., Schollum, J., & Derrett, S. (2022). Health-related quality of life and disability among older New Zealanders with kidney failure: A prospective study. Canadian Journal of Kidney Health & Disease, 9, 1-14. doi: 10.1177/20543581221094712
Tafuna'i, M., Turner, R., Matalavea, B., Voss, D., Hazelman, L., Richards, R., & Walker, R. (2022). Results of a community-based screening programme for chronic kidney disease and associated risk factors, (obesity, diabetes and hypertension) in a Samoan cohort. BMJ Open, 12(4), e056889. doi: 10.1136/bmjopen-2021-056889
Tafuna'i, M., Turner, R. M., Richards, R., Sopoaga, F., & Walker, R. (2022). The prevalence of chronic kidney disease in Samoans living in Auckland, New Zealand. Nephrology, 27(3), 248-259. doi: 10.1111/nep.13990
Journal - Research Other
Wu, H. H. L., Chinnadurai, R., & Walker, R. J. (2022). Is HIF-PHI the answer to tackle ESA hyporesponsiveness in the elderly? Kidney & Dialysis, 2, 446-453. doi: 10.3390/kidneydial2030040
Ground, M., Park, Y. E., Waqanivavalagi, S., Callon, K., Walker, R., Milsom, P., & Cornish, J. (2022). Generating robust human valvular interstitial cell cultures: Protocol and considerations. Journal of Molecular & Cellular Cardiology, 173, 118-126. doi: 10.1016/j.yjmcc.2022.10.008
Conference Contribution - Published proceedings: Abstract
Chan, R., Walker, R., Samaranayaka, A., & Schollum, J. (2022). Long term impact of early non-infectious complications at the initiation of peritoneal dialysis. Nephrology, 27(Suppl. 1), (pp. 59-60). doi: 10.1111/nep.14099
Mehta, P., Gimenez, G., Slatter, T., & Walker, R. J. (2022). Reduction of lithium induced interstitial fibrosis on co-administration with amiloride. In L. Wilson, H. Harcombe, P. Jayakaran, L. Burga, J. Antony, K. Morgaine, M. Garelja, A. Middleton, M. Anwar & T. Milne (Eds.), Proceedings of the 262nd Otago Medical School Research Society (OMSRS) Meeting: Research Staff Speaker Awards. Dunedin, New Zealand: OMSRS. Retrieved from https://ourarchive.otago.ac.nz/handle/10523/12839
Conference Contribution - Verbal presentation and other Conference outputs
Walker, R. (2022, December). Kidney-function trajectories from young adulthood to midlife: Identifying risk strata and opportunities for intervention. Verbal presentation at the Kidney in Health and Disease Research Network 47th Research Meeting, Dunedin, New Zealand.
Ground, M., Waqanivavalagi, S., Milsom, P., Walker, R., & Cornish, J. (2022, August). FGF-2 reverses myofibroblastic activation of diseased valvular interstitial cells. Verbal presentation at the Metabolic & Cardiovascular Disease Satellite Meeting: Queenstown Research Week, Queenstown, New Zealand.
2021
Journal - Research Article
Leader, C. J., Wilkins, G. T., & Walker, R. J. (2021). The effect of spironolactone on cardiac and renal fibrosis following myocardial infarction in established hypertension in the transgenic Cyp1a1Ren2 rat. PLoS ONE, 16(11), e0260554. doi: 10.1371/journal.pone.0260554
McLean, R. M., Xie, Z., Nelson, V., Nosa, V., Po’e-Tofaeono, A., Walker, R., & Wyeth, E. H. (2021). Experiences of New Zealand haemodialysis patients in relation to food and nutrition management: A qualitative study. Nutrients, 13(7), 2299. doi: 10.3390/nu13072299
Zhou, Z., Jardine, M. J., Li, Q., Neuen, B. L., Cannon, C. P., de Zeeuw, D., … CREDENCE Trial Investigators, including Walker, R. (2021). Effect of SGLT2 inhibitors on stroke and atrial fibrillation in diabetic kidney disease: Results from the CREDENCE trial and meta-analysis. Stroke, 52, 1545-1556. doi: 10.1161/STROKEAHA.120.031623
Shettigar, R., Samaranayaka, A., Schollum, J. B. W., Wyeth, E. H., Derrett, S., & Walker, R. J. (2021). Predictors of health deterioration among older New Zealanders undergoing dialysis: A three-year accelerated longitudinal cohort study. Canadian Journal of Kidney Health & Disease, 8. doi: 10.1177/20543581211022207
Ground, M., Waqanivavalagi, S., Walker, R., Milsom, P., & Cornish, J. (2021). Models of immunogenicity in preclinical assessment of tissue engineered heart valves. Acta Biomaterialia, 133, 102-113. doi: 10.1016/j.actbio.2021.05.049
Jayne, D. R. W., Merkel, P. A., Schall, T. J., Bekker, P., for the ADVOCATE Study Group, including Walker, R. (2021). Avacopan for the treatment of ANCA-associated vasculitis. New England Journal of Medicine, 384, 599-609. doi: 10.1056/NEJMoa2023386
Heath, L., Egan, R., Ross, J., Iosua, E., Walker, R., & MacLeod, R. (2021). Preparing nurses for palliative and end of life care: A survey of New Zealand nursing schools. Nurse Education Today, 100, 104822. doi: 10.1016/j.nedt.2021.104822
Kuan, I. H. S., Wilson, L. C., Leishman, J. C., Cosgrove, S., Walker, R. J., Putt, T. L., Schollum, J. B. W., & Wright, D. F. B. (2021). Metformin doses to ensure efficacy and safety in patients with reduced kidney function. PLoS ONE, 16(2), e0246247. doi: 10.1371/journal.pone.0246247
Shoemaker, L. N., Wilson, L. C., Lucas, S. J. E., Machado, L., Walker, R. J., & Cotter, J. D. (2021). Indomethacin markedly blunts cerebral perfusion and reactivity, with little cognitive consequence in healthy young and older adults. Journal of Physiology, 599(4), 1097-1113. doi: 10.1113/jp280118
Journal - Research Other
Jennings, M. J., Molteno, T. C. A., Walker, R. J., Bedford, J. J., Leader, J. P., & Poole, T. (2021). Transmission electron microscopy tilt-series data from in-situ chondrocyte primary cilia [Data descriptor]. Data, 6(11), 118. doi: 10.3390/data6110118
Shettigar, R., Schollum, J., Putt, T., Chan, L., Lau, M., & Walker, R. (2021). Renal manifestations of syphilis [Brief communication]. Internal Medicine Journal, 51(7), 1160-1167. doi: 10.1111/imj.15407
Pradhan, S., Duffull, S. B., Wilson, L. C., Kuan, I. H. S., Walker, R. J., Putt, T. L., Schollum, J. B. W., & Wright, D. F. B. (2021). Does the intact nephron hypothesis provide a reasonable model for metformin dosing in chronic kidney disease? British Journal of Clinical Pharmacology, 87, 4871-4879. doi: 10.1111/bcp.14919
Mohd Asarani, N. A., Paddison, J., Walker, R., Downie, M., & Wheeler, B. J. (2021). New‐onset type 1 diabetes complicated by diabetic ketoacidosis and severe sepsis requiring extracorporeal membrane oxygenation and kidney replacement therapy. Journal of Diabetes & Metabolic Disorders, 20, 1075-1079. doi: 10.1007/s40200-021-00736-z
Conference Contribution - Published proceedings: Abstract
Mehta, P., Slatter, T. L., & Walker, R. J. (2021). Amiloride reduces lithium induced interstitial fibrosis and inflammation. Nephrology, 26(Suppl. 2), (pp. 18). doi: 10.1111/nep.13930
Tiku, A., Boudville, N., Brown, F., Cass, A., Clarke, P., Day, R., … Palmer, S., … Walker, R., … Dalbeth, N. (2021). Urate-lowering therapy for prevention of gout: Prespecified analyses from the CKD-FIX trial. Arthritis & Rheumatology, 73(Suppl. 9), (pp. 1372-1373). doi: 10.1002/art.41966
Other Research Output
Walker, R. (October, 2021). Gout through the ages. Otago Medical School Alumni Association (OMSAA) History of Medicine and Science Talks, Dunedin, New Zealand. Retrieved from https://www.youtube.com/watch?v=AcmM79gdGYk
2020
Journal - Research Article
Heath, L., Egan, R., Ross, J., Iosua, E., Walker, R., & MacLeod, R. (2020). Teaching palliative care skills. Kai Tiaki Nursing New Zealand, 26(10), 16-17.
Tafuna'i, M., Matalavea, B., Voss, D., Turner, R. M., Richards, R., Sopoaga, F., … Walker, R. (2020). Kidney failure in Samoa. Lancet Regional Health: Western Pacific, 5, 100058. doi: 10.1016/j.lanwpc.2020.100058
Toussaint, N. D., Pedagogos, E., Lioufas, N. M., Elder, G. J., Pascoe, E. M., Badve, S. V., … Walker, R. J., … IMPROVE-CKD Trial Investigators. (2020). A randomized trial on the effect of phosphate reduction on vascular end points in CKD (IMPROVE-CKD). Journal of the American Society of Nephrology, 31, 2653-2666. doi: 10.1681/asn.2020040411
Badve, S. V., Pascoe, E. M., Tiku, A., Boudville, N., Brown, F. G., Cass, A., … Palmer, S. C., … Walker, R. J., … for the CKD-FIX Study Investigators. (2020). Effects of allopurinol on the progression of chronic kidney disease. New England Journal of Medicine, 382(26), 2504-2513. doi: 10.1056/NEJMoa1915833
Leader, C. J., Kelly, D. J., Sammut, I. A., Wilkins, G. T., & Walker, R. J. (2020). Spironolactone mitigates, but does not reverse, the progression of renal fibrosis in a transgenic hypertensive rat. Physiological Reports, 8(10), e14448. doi: 10.14814/phy2.14448
Akerman, A. P., Walker, R. J., Schollum, J. B. W., Putt, T. L., & Wilson, L. C. (2020). Refinement of a protocol to induce reliable muscle cramps in the abductor hallucis. Physiological Measurement, 41, 055003. doi: 10.1088/1361-6579/ab8855
Donnellan, S., Wright, D. F. B., Roberts, J. A., Duffull, S. B., Schollum, J. B. W., Putt, T. L., … Walker, R. J. (2020). The pharmacokinetics of meropenem and piperacillin-tazobactam during sustained low efficiency haemodiafiltration (SLED-HDF). European Journal of Clinical Pharmacology, 76, 239-247. doi: 10.1007/s00228-019-02792-0
Journal - Research Other
Sola, L., Levin, N. W., Johnson, D. W., Pecoits-Filho, R., Aljubori, H. M., Chen, Y., … Walker, R., … Finkelstein, F. O. (2020). Development of a framework for minimum and optimal safety and quality standards for hemodialysis and peritoneal dialysis. Kidney International Supplements, 10(1), e55-e62. doi: 10.1016/j.kisu.2019.11.009
Pecoits-Filho, R., Okpechi, I. G., Donner, J.-A., Harris, D. C. H., Aljubori, H. M., Bello, A. K., … Walker, R., … Johnson, D. W. (2020). Capturing and monitoring global differences in untreated and treated end-stage kidney disease, kidney replacement therapy modality, and outcomes. Kidney International Supplements, 10(1), e3-e9. doi: 10.1016/j.kisu.2019.11.001
Conference Contribution - Published proceedings: Abstract
Shettigar, R., Schollum, J., Derrett, S., Samaranayaka, A., McNoe, B., & Walker, R. (2020). Predictors of health deterioration of older adults after 24 months and 36 months of dialysis therapy. Nephrology, 25(Suppl. 3), (pp. 15). doi: 10.1111/nep.13797
Tiku, A., Pascoe, E., Boudville, N., Cass, A., Dalbeth, N., Day, R., … Palmer, S., … Walker, R., … Badve, S. (2020). The effects of allopurinol on the progression of chronic kidney disease according to diabetic kidney disease at baseline: Pre-specified analyses of the CKD-FIX trial. Nephrology, 25(Suppl. 3), (pp. 60). doi: 10.1111/nep.13799
Tiku, A., Pascoe, E., Boudville, N., Cass, A., Dalbeth, N., Day, R., … Palmer, S., … Walker, R., … Badve, S. (2020). The effects of allopurinol on the progression of chronic kidney disease according to baseline serum urate level: Results from post hoc analyses of the CKD-FIX trial. Nephrology, 25(Suppl. 3), (pp. 60-61). doi: 10.1111/nep.13799
Tiku, A., Pascoe, E., Boudville, N., Cass, A., Dalbeth, N., Day, R. O., … Palmer, S., … Walker, R. J., … Badve, S. (2020). The effects of allopurinol on the progression of chronic kidney disease according to baseline kidney function: Pre-specified analyses of the CKD-FIX trial. Nephrology, 25(Suppl. 3), (pp. 60). doi: 10.1111/nep.13799
Tiku, A., Pascoe, E., Boudville, N., Cass, A., Dalbeth, N., Day, R. O., … Palmer, S., … Walker, R. J., … Badve, S. (2020). The effects of allopurinol on the progression of chronic kidney disease according to albuminuria at baseline: Results from pre-specified analyses of the CKD-FIX trial. Nephrology, 25(Suppl. 3), (pp. 29). doi: 10.1111/nep.13798
Shoemaker, L. N., Wilson, L. C., Lucas, S. J. E., Machado, L., Walker, R. J., & Cotter, J. D. (2020). Effect of cerebral blood flow on cognition across healthy adulthood. FASEB Journal, 34(Suppl. 1). doi: 10.1096/fasebj.2020.34.s1.06931
Talbot, B., Sukkar, L., Smyth, B., Jun, M., Jardine, M., Cass, A., Walker, R., … Gallagher, M. (2020). Comparing survival in patients with chronic kidney disease across three countries: Results from the study of heart and renal protection: Extended review (SHARP-ER). Kidney International Reports, 5(3, Suppl.), (pp. S250). doi: 10.1016/j.ekir.2020.02.646
Other Research Output
CARI Living Guideline Lipid Work Group including Walker, R., Palmer, S. & Patu, M. (2020). CARI Guidelines: Management of lipid-lowering therapy in CKD. 42p. Retrieved from https://app.magicapp.org/summary/guideline_4689.html
2019
Journal - Research Article
Leader, C. J., Moharram, M., Coffey, S., Sammut, I. A., Wilkins, G., & Walker, R. J. (2019). Myocardial global longitudinal strain: An early indicator of cardiac interstitial fibrosis modified by spironolactone, in a unique hypertensive rat model. PLoS ONE, 14(8), e0220837. doi: 10.1371/journal.pone.0220837
Kuan, I. H. S., Savage, R. L., Duffull, S. B., Walker, R. J., & Wright, D. F. B. (2019). The association between metformin therapy and lactic acidosis. Drug Safety, 42, 1449-1469. doi: 10.1007/s40264-019-00854-x
Walker, R. J., Tafunai, M., & Krishnan, A. (2019). Chronic kidney disease in New Zealand Māori and Pacific people. Seminars in Nephrology, 39(3), 297-299. doi: 10.1016/j.semnephrol.2019.03.001
McNoe, B., Schollum, J. B. W., Derrett, S., Marshall, M. R., Henderson, A., Samaranayaka, A., & Walker, R. J. (2019). Recruitment and participant baseline characteristics in the dialysis outcomes in those aged 65 years or older study. BMC Nephrology, 20, 137. doi: 10.1186/s12882-019-1328-8
Harris, D. C. H., Davies, S. J., Finkelstein, F. O., Jha, V., Donner, J.-A., Abraham, G., … on behalf of the Working Groups of the International Society of Nephrology's 2nd Global Kidney Health Summit, including Walker, R. (2019). Increasing access to integrated ESKD care as part of universal health coverage. Kidney International, 95(4, Suppl.), S1-S33. doi: 10.1016/j.kint.2018.12.005
Fuimaono, R. A., Sopoaga, F., Derrett, S., & Walker, R. (2019). The perspectives of Samoan patients and health professionals about access to renal services in New Zealand. New Zealand Medical Journal, 132(1492), 11-18. Retrieved from https://www.nzma.org.nz/journal
Hurcombe, J. A., Hartley, P., Lay, A. C., Ni, L., Bedford, J. J., Leader, J. P., … Walker, R. J., … Coward, R. J. M. (2019). Podocyte GSK3 is an evolutionarily conserved critical regulator of kidney function. Nature Communications, 10, 403. doi: 10.1038/s41467-018-08235-1
Pradhan, S., Duffull, S. B., Walker, R. J., & Wright, D. F. B. (2019). The intact nephron hypothesis as a model for renal drug handling. European Journal of Clinical Pharmacology, 75(2), 147-156. doi: 10.1007/s00228-018-2572-8
Lloyd, H., Li, G., Tomlin, A., Tilyard, M. W., Walker, R., & Schollum, J. (2019). Prevalence and risk factors for chronic kidney disease in primary health care in the Southern Region of New Zealand. Nephrology, 24(3), 308-315. doi: 10.1111/nep.13395
Journal - Research Other
Leader, J., Bedford, J., & Walker, R. J. (2019). Drowning in data: Early responses of renal cortical collecting duct cells to lithium. Annals of Translational Medicine, 8(Suppl. 8), S322. doi: 10.21037/atm.2019.09.120
Sukkar, L., Talbot, B., Jun, M., Dempsey, E., Walker, R., Hooi, L., … on behalf of the SHARP-ER Study Collaborators, including McGregor, D., & Ellis, G. (2019). Protocol for the study of heart and renal protection-extended review: Additional 5-year follow-up of the Australian, New Zealand, and Malaysian SHARP cohort. Canadian Journal of Kidney Health & Disease, 6, 1-11. doi: 10.1177/2054358119879896
Hoye, N. A., Wilson, L. C., Jardine, D. L., & Walker, R. J. (2019). Sympathetic overactivity in dialysis patients: Underappreciated and clinically consequential. Seminars in Dialysis, 32, 255-265. doi: 10.1111/sdi.12756
Conference Contribution - Published proceedings: Abstract
Shettigar, R., Schollum, J., Putt, T., & Walker, R. (2019). Acute kidney injury in patients with solid organ and haematological malignancies: A single centre experience. Kidney International Reports, 4(7, Suppl.), (pp. S149). doi: 10.1016/j.ekir.2019.05.384
Shettigar, R., Schollum, J., Walker, R., & Putt, T. (2019). Renal transplantation in a patient with familial syndrome of hypocalcemia with hypercalciuria. Kidney International Reports, 4(7, Suppl.), (pp. S381). doi: 10.1016/j.ekir.2019.05.988
Shettigar, R., Putt, T., Walker, R., & Schollum, J. (2019). Recurrence of MPO vasculitis in the immediate post transplant period. Kidney International Reports, 4(7, Suppl.), (pp. S381). doi: 10.1016/j.ekir.2019.05.989
Leader, C., Moharram, M., Sammut, I., Coffey, S., Wilkins, G., & Walker, R. (2019). The effect of spironolactone in a rat model of established hypertension. Kidney International Reports, 4(7, Suppl.), (pp. S146-S147). doi: 10.1016/j.ekir.2019.05.377
Conference Contribution - Poster Presentation (not in published proceedings)
Shoemaker, L. N., Wilson, L. C., Lucas, S. J. E., Machado, L., Walker, R. J., & Cotter, J. D. (2019, September). Effect of cerebral blood flow on cognition across healthy adulthood. Poster session presented at the Medical Sciences Congress (MedSci), Queenstown, New Zealand.
2018
Journal - Research Article
Leader, C. J., Clark, B. J., Hannah, A. R., Sammut, I. A., Wilkins, G. T., & Walker, R. J. (2018). Breeding characteristics and dose-dependent blood pressure responses of transgenic Cyp1a1-Ren2 rats. Comparative Medicine, 68(5), 360-366. doi: 10.30802/AALAS-CM-17-18000026
Samaranayaka, S., Walker, R. J., Samaranayaka, A., Derrett, S., & Schollum, J. B. W. (2018). Medication exposure and health outcomes in older patients with end-stage kidney disease: A prospective study undertaken in New Zealand. Drugs & Aging, 35, 1005-1015. doi: 10.1007/s40266-018-0582-y
Storey, B. C., Staplin, N., Haynes, R., Reith, C., Emberson, J., Herrington, W. G., … Walker, R., … on behalf of the SHARP Collaborative Group. (2018). Lowering LDL cholesterol reduces cardiovascular risk independently of presence of inflammation. Kidney International, 93(4), 1000-1007. doi: 10.1016/j.kint.2017.09.011
Mafham, M. M., Staplin, N., Emberson, J., Haynes, R., Herrington, W., Reith, C., … Walker, R., … on behalf of the SHARP Collaborative Group. (2018). Prognostic utility of estimated albumin excretion rate in chronic kidney disease: Results from the Study of Heart and Renal Protection. Nephrology Dialysis Transplantation, 33(2), 257-264. doi: 10.1093/ndt/gfw396
Kalita-De Croft, P., Bedford, J. J., Leader, J. P., & Walker, R. J. (2018). Amiloride modifies the progression of lithium-induced renal interstitial fibrosis. Nephrology, 23(1), 20-30. doi: 10.1111/nep.12929
Journal - Research Other
Donnellan, S., Walker, R., Putt, T., & Schollum, J. (2018). Unusual case of renal parenchymal urine leak post-transplantation. Nephrology, 23(12), 1152. doi: 10.1111/nep.13262
Conference Contribution - Published proceedings: Abstract
Pearson, G. M., & Walker, R. (2018). Mortality and quality of life in elderly patients on dialysis in New Zealand: Results from the Dialysis Outcomes in the ≥65s Study (DOS65+). Journal of the American Geriatrics Society, 66(Suppl. 2), (pp. S185). doi: 10.1111/jgs.15376
Leader, C., Moharram, M., Sammut, I., Coffey, S., Wilkins, G., & Walker, R. (2018). The effect of spironolactone on renal injury (fibrosis) in a hypertensive transgenic Cyp1aRen2 rat model. Nephrology, 23(Suppl. 3), (pp. 44). doi: 10.1111/nep.13441
Talbot, B., Sukkar, L., Smyth, B., Jun, M., Jardine, M., Cass, A., Walker, R., … Gallagher, M. (2018). Cause of death varies across Australia, New Zealand and Malaysia in those on renal replacement therapy: Results from the study of heart and renal protection-extended review (SHARP-ER). Nephrology, 23(Suppl. 3), (pp. 29). doi: 10.1111/nep.13441
Jun, M., Sukkar, L., Jardine, M., Talbot, B., Cass, A., Reith, C., Walker, R., & Gallagher, M. (2018). Assessing baseline medication use in chronic kidney disease: An analysis of the SHARP-ER study. Nephrology, 23(Suppl. 3), (pp. 25). doi: 10.1111/nep.13441
Conference Contribution - Verbal presentation and other Conference outputs
Mugloo, S., Ashley, Z., Leader, C., Bahn, A., Sammut, I. A., Walker, R., McDonald, F. J., & Fronius, M. (2018, August). Characterising the role of vascular ENaC for blood pressure regulation. Verbal presentation at the Medical Sciences Congress (MedSci), Queenstown, New Zealand.
2017
Chapter in Book - Research
Endre, Z. H., & Walker, R. J. (2017). Biomarkers of cardiovascular risk in chronic kidney disease. In C. L. Edelstein (Ed.), Biomarkers of kidney disease. (2nd ed.) (pp. 485-511). London, UK: Elsevier. doi: 10.1016/B978-0-12-803014-1.00011-X
Journal - Research Article
Reith, C., Staplin, N., Herrington, W. G., Stevens, W., Emberson, J., Haynes, R., … on behalf of the SHARP Collaborative Group, including Walker, R., McGregor, D., Schollum, J., & Ellis, G. (2017). Effect on non-vascular outcomes of lowering LDL cholesterol in patients with chronic kidney disease: Results from the Study of Heart and Renal Protection. BMC Nephrology, 18, 147. doi: 10.1186/s12882-017-0545-2
Schlackow, I., Kent, S., Herrington, W., Emberson, J., Haynes, R., Reith, C., … on behalf of the SHARP Collaborative Group, including Walker, R., McGregor, D., Schollum, J., & Ellis, G. (2017). A policy model of cardiovascular disease in moderate-to-advanced chronic kidney disease. Heart, 103(23), 1880-1890. doi: 10.1136/heartjnl-2016-310970
Obrador, G. T., Schultheiss, U. T., Kretzler, M., Langham, R. G., Nangaku, M., Pecoits-Filho, R., … Walker, R., … Köttgen, A. (2017). Genetic and environmental risk factors for chronic kidney disease. Kidney International Supplements, 7(2), 88-106. doi: 10.1016/j.kisu.2017.07.004
Todd, A. S., Walker, R. J., MacGinley, R. J., Kelly, J., Merriman, T. R., Major, T. J., & Johnson, R. J. (2017). Dietary sodium modifies serum uric acid concentrations in humans. American Journal of Hypertension, 30(12), 1196-1202. doi: 10.1093/ajh/hpx123
Derrett, S., Samaranayaka, A., Schollum, J. B. W., McNoe, B., Marshall, M. R., Williams, S., Wyeth, E. H., & Walker, R. J. (2017). Predictors of health deterioration among older adults after 12 months of dialysis therapy: A longitudinal cohort study from New Zealand. American Journal of Kidney Diseases, 70(6), 798-806. doi: 10.1053/j.ajkd.2017.06.023
de Groot, T., Doornebal, J., Christensen, B. M., Cockx, S. C., Sinke, A. P., Baumgarten, R., Bedford, J. J., Walker, R. J., … Deen, P. M. T. (2017). Lithium-induced NDI: Acetazolamide reduces polyuria, but does not improve urine concentrating ability. American Journal of Physiology: Renal Physiology, 313(3), F669-F676. doi: 10.1152/ajprenal.00147.2017
Stayner, C., Poole, C. A., McGlashan, S. R., Pilanthananond, M., Brauning, R., Markie, D., … Slobbe, L., … Parker, K., Wiles, A., … Leichter, A., Leask, M., … Jennings, M., Horsfield, J. A., Walker, R. J., & Eccles, M. R. (2017). An ovine hepatorenal fibrocystic model of a Meckel-like syndrome associated with dysmorphic primary cilia and TMEM67 mutations. Scientific Reports, 7, 1601. doi: 10.1038/s41598-017-01519-4
Hoye, N. A., Wilson, L. C., Wilkins, G. T., Jardine, D. L., Putt, T. L., Samaranayaka, A., Schollum, J. B. W., & Walker, R. J. (2017). Endovascular renal denervation in end-stage kidney disease patients: Cardiovascular protection: A proof-of-concept study. Kidney International Reports, 2(5), 856-865. doi: 10.1016/j.ekir.2017.04.012
Page, M. J., Wyeth, E. H., Samaranayaka, A., McNoe, B., Walker, R. C., Schollum, J., … Walker, R., & Derrett, S. (2017). Accuracy of ethnicity data recorded in hospital-based patient clinical records and the Australia and New Zealand Dialysis and Transplant Registry. New Zealand Medical Journal, 130(1454), 65-71. Retrieved from https://www.nzma.org.nz/journal
Lovell, S., Walker, R. J., Schollum, J. B. W., Marshall, M. R., McNoe, B. M., & Derrett, S. (2017). To dialyse or delay: A qualitative study of older New Zealanders' perceptions and experiences of decision-making, with stage 5 chronic kidney disease. BMJ Open, 7(3), e014781. doi: 10.1136/bmjopen-2016-014781
Herrington, W., Staplin, N., Judge, P. K., Mafham, M., Emberson, J., Haynes, R., … Walker, R., … on behalf of the SHARP Collaborative Group. (2017). Evidence for reverse causality in the association between blood pressure and cardiovascular risk in patients with chronic kidney disease. Hypertension, 69, 314-322. doi: 10.1161/hypertensionaha.116.08386
Kuan, I. H. S., Duffull, S. B., Putt, T. L., Schollum, J. B. W., Walker, R. J., & Wright, D. F. B. (2017). A population pharmacokinetic model for 51Cr EDTA to estimate renal function. Clinical Pharmacokinetics, 56(6), 671-678. doi: 10.1007/s40262-016-0489-x
Yao, Y., Davis, G., Harrison, J. C., Walker, R. J., & Sammut, I. A. (2017). Renal functional responses in diabetic nephropathy following chronic bilateral renal denervation. Autonomic Neuroscience, 204, 98-104. doi: 10.1016/j.autneu.2016.09.019
Journal - Research Other
Pollock, C., Zuk, A., Anders, H.-J., Reza Ganji, M., Johnson, D. W., Kasiske, B., … Walker, R., … Bonventre, J. V. (2017). The establishment and validation of novel therapeutic targets to retard progression of chronic kidney disease. Kidney International Supplements, 7(2), 130-137. doi: 10.1016/j.kisu.2017.07.008
Ye, J., Hodgson, T., Putt, T., Schollum, J., & Walker, R. (2017). Oxalate nephropathy presenting in exocrine pancreatic insufficiency. Nephrology, 22(8), 658. doi: 10.1111/nep.12858
Conference Contribution - Published proceedings: Abstract
Major, T. J., Cadzow, M. J., Merriman, M. E., Phipps-Green, A. J., Topless, R. K. G., Abhishek, A., … McCormick, S. P. A., … Walker, R. J., … Stamp, L. K., & Merriman, T. R. (2017). Genome-wide association study of gout in 111,098 people of european ancestry. Proceedings of the Annual Conference of the Genetics Society of Australasia (GSA) with the New Zealand Society for Biochemistry and Molecular Biology (NZSBMB). 547. Retrieved from http://gen2017.w.events4you.currinda.com
Merriman, T. R., Cadzow, M., Merriman, M., Phipps-Green, A., Topless, R., Abhishek, A., … McCormick, S., … Walker, R., … Stamp, L., & Flynn, T. (2017). A genome-wide association study of gout in people of European ancestry. Annals of the Rheumatic Diseases, 76(Suppl. 2), (pp. 383). doi: 10.1136/annrheumdis-2017-eular.5634
Merriman, T. R., Cadzow, M., Merriman, M. E., Phipps-Green, A., Topless, R., Abhishek, A., … McCormick, S., … Walker, R., … Stamp, L. K., & Major, T. (2017). A genome-wide association study of gout in people of European ancestry. Arthritis & Rheumatology, 69(Suppl. 10), 1104. doi: 10.1002/art.40321
Putt, T., Schollum, J., Walker, R., Leishman, J., Duffull, S., & Wright, D. (2017). Pharmacokinetics of Metformin in settings of KCD. Nephrology, 22(Suppl. 3), (pp. 45). doi: 10.1111/nep.13104
Conference Contribution - Verbal presentation and other Conference outputs
Todd, A. S., Walker, R. J., MacGinley, R. J., Kelly, J., Merriman, T. R., Major, T. J., & Johnson, R. J. (2017, August-September). Can dietary sodium modify serum uric acid concentrations in humans? Verbal presentation at the Dietitians NZ National Professional Development Meeting, Wellington, New Zealand.
Mugloo, S., Ashley, Z., Leader, C., Bahn, A., Sammut, I. A., Walker, R., McDonald, F. J., & Fronius, M. (2017, September). Hypertension is associated with increased ENaC expression in the arteries of Cyp1a1-Ren2 rats. Verbal presentation at the Medical Sciences Congress (MedSci), Queenstown, New Zealand.
2016
Journal - Research Article
Marti, H.-P., Jeffs, A., Scherer, A., Leader, J., Leader, C., Bedford, J., & Walker, R. (2016). Renal fibrosis mRNA classifier: Validation in experimental lithium-induced interstitial fibrosis in the rat kidney. PLoS ONE, 11(12), e0168240. doi: 10.1371/journal.pone.0168240
Staplin, N., Haynes, R., Herrington, W. G., Reith, C., Cass, A., Fellström, B., … Walker, R., … on behalf of the SHARP Collaborative Group. (2016). Smoking and adverse outcomes in patients with CKD: The Study of Heart and Renal Protection (SHARP). American Journal of Kidney Diseases, 68(3), 371-380. doi: 10.1053/j.ajkd.2016.02.052
Mandic, S., Stevens, E., Hodge, C., Brown, C., Walker, R., Body, D., … Nye, E. R., & Williams, M. J. A. (2016). Long-term effects of cardiac rehabilitation in elderly individuals with stable coronary artery disease. Disability & Rehabilitation, 38(9), 837-843. doi: 10.3109/09638288.2015.1061611
Journal - Research Other
Young, G., Putt, T., Schollum, J., & Walker, R. (2016). Tumoural calcinosis in a young woman. Nephrology, 21(3), 267. doi: 10.1111/nep.12571
Conference Contribution - Published proceedings: Abstract
Ashley, Z., Leader, C., Sammut, I., McDonald, F., Walker, R., & Fronius, M. (2016). The flow detection role of the vascular epithelial sodium channel (ENaC) in an experimental model of hypertension: The novel target for spironolactone therapy? Journal of Hypertension, 34(Suppl. 2), (pp. e103). [Abstract]
Leader, C., Sammut, I., Ashley, Z., Wilkins, G., & Walker, R. (2016). Development of renal injury following myocardial infarction in a hypertensive transgenic Cyp1a1Ren2 rat. Nephrology, 21(Suppl. 2), (pp. 154). doi: 10.1111/nep.12888
Hoye, N. A., Baldi, J. C., Jardine, D. L., Schollum, J. B., Wilkins, G. T., Wilson, L. C., & Walker, R. J. (2016). Delayed but sustained blood pressure and sympathetic reduction one year after renal denervation in dialysis patents. Proceedings of the European Renal Association and the European Dialysis and Transplant Association (ERA-EDTA) 53rd Congress. MO058. Retrieved from http://www.abstracts2view.com/era_archive/
Conference Contribution - Poster Presentation (not in published proceedings)
Mugloo, S., Leader, C., Sammut, I. A., Walker, R., McDonald, F. J., & Fronius, M. (2016, August). Characterising ENaC expression in vasculature. Poster session presented at the Medical Sciences Congress (MedSci), Nelson, New Zealand.
Conference Contribution - Verbal presentation and other Conference outputs
Li, G., Lloyd, H. S., Schollum, J., Tilyard, M. W., Tomlin, A., & Walker, R. (2016, December). The prevalence of chronic kidney disease in primary health care in the southern region of New Zealand. Verbal presentation at the Joint International Meeting of the Renal Scientists of the Australia and New Zealand Society of Nephrology and the Kidney in Health and Disease Network: Translational Medicine: Innovations in Renal Research, Blenheim, New Zealand.
Putt, T., Schollum, J., Walker, R., Leishman, J., Duffull, S., & Wright, D. (2016, December). Pharmacokinetics of metformin in setting of CKD. Verbal presentation at the Joint International Meeting of the Renal Scientists of the Australia and New Zealand Society of Nephrology and the Kidney in Health and Disease Network: Translational Medicine: Innovations in Renal Research, Blenheim, New Zealand.
Wilson, L. C., Wilkins, G. T., Cotter, J. D., Manning, P., & Walker, R. J. (2016, December). What aspects of altered cerebral vascular function can be implicated in the elevated risk of cerebrovascular disease in those with type 2 diabetes: Can six-months of high-intensity interval training improve cerebral vascular function? Verbal presentation at the Joint International Meeting of the Renal Scientists of the Australia and New Zealand Society of Nephrology and the Kidney in Health and Disease Network: Translational Medicine: Innovations in Renal Research, Blenheim, New Zealand.
Leader, J., Bedford, J., van der Tholen, L., Weiner, D., & Walker, R. (2016, December). Lithium in the renal cortex. Verbal presentation at the Joint International Meeting of the Renal Scientists of the Australia and New Zealand Society of Nephrology and the Kidney in Health and Disease Network: Translational Medicine: Innovations in Renal Research, Blenheim, New Zealand.
Mugloo, S., Ashley, Z., Leader, C., Bahn, A., Sammut, I., Walker, R., McDonald, F., & Fronius, M. (2016, December). Epithelial Sodium Channel (ENaC): An emerging regulator of vascular physiology. Verbal presentation at the Joint International Meeting of the Renal Scientists of the Australia and New Zealand Society of Nephrology and the Kidney in Health and Disease Network: Translational Medicine: Innovations in Renal Research, Blenheim, New Zealand.
Ashley, Z., Leader, C., Sammut, I., McDonald, F., Walker, R., & Fronius, M. (2016, December). Role of ENaC in the dysfunction of resistance arteries in hypertension with/without the confounding factor of myocardial infarction. Verbal presentation at the Joint International Meeting of the Renal Scientists of the Australia and New Zealand Society of Nephrology and the Kidney in Health and Disease Network: Translational Medicine: Innovations in Renal Research, Blenheim, New Zealand.
Leader, C., Ashley, Z., Sammut, I., Wilkins, G., & Walker, R. (2016, December). Kidney injury following myocardial infarction in a hypertensive transgenic rat. Verbal presentation at the Joint International Meeting of the Renal Scientists of the Australia and New Zealand Society of Nephrology and the Kidney in Health and Disease Network: Translational Medicine: Innovations in Renal Research, Blenheim, New Zealand.
Jennings, M., Ashley, Z., Leader, C., McDonald, F., Sammut, I., Walker, R., & Fronius, M. (2016, December). The ultrastructure of mesenteric arteries in a hypertensive rat model. Verbal presentation at the Joint International Meeting of the Renal Scientists of the Australia and New Zealand Society of Nephrology and the Kidney in Health and Disease Network: Translational Medicine: Innovations in Renal Research, Blenheim, New Zealand.
Yao, Y., Harrison, J. C., Davis, G., Walker, R. J., & Sammut, I. A. (2016, August). Renal denervation in diabetes. Verbal presentation at the Medical Sciences Congress (MedSci), Nelson, New Zealand.
Walker, R. (2016, March-April). Renal function. Verbal presentation at the New Zealand Rural General Practice Network (NZRGPN) National Rural Health Conference, Dunedin, New Zealand.
2015
Journal - Research Article
Egan, R., Wood, S., MacLeod, R., & Walker, R. (2015). Spirituality in renal supportive care: A thematic review. Healthcare, 3(4), 1174-1193. doi: 10.3390/healthcare3041174
Flynn, T. J., Cadzow, M., Dalbeth, N., Jones, P. B., Stamp, L. K., Harré Hindmarsh, J., Todd, A. S., Walker, R. J., Topless, R., & Merriman, T. R. (2015). Positive association of tomato consumption with serum urate: Support for tomato consumption as an anecdotal trigger of gout flares. BMC Musculoskeletal Disorders, 16, 196. doi: 10.1186/s12891-015-0661-8
Chembo, C. L., Marshall, M. R., Williams, L. C., Walker, R. J., Lynn, K. L., Irvine, J., & Pilmore, H. L. (2015). Long-term outcomes for primary glomerulonephritis: New Zealand Glomerulonephritis study. Nephrology, 20(12), 899-907. doi: 10.1111/nep.12538
Marshall, M. R., Young, B. A., Fox, S. J., Cleland, C. J., Walker, R. J., Maskane, I., & Herold, A. M. (2015). The home hemodialysis hub: Physical infrastructure and integrated governance structure. Hemodialysis International, 19(Suppl. 1), S8-S22. doi: 10.1111/hdi.12273
Mandic, S., Body, D., Barclay, L., Walker, R., Nye, E. R., Grace, S. L., & Williams, M. J. A. (2015). Community-based cardiac rehabilitation maintenance programs: Use and effects. Heart, Lung & Circulation, 24, 710-718. doi: 10.1016/j.hlc.2015.01.014
Journal - Research Other
Slade, H., Mulroy, E., Ussher, J., Putt, T., Schollum, J., & Walker, R. (2015). Sulfadiazine-induced crystal nephropathy: A new ‘old’ problem. Nephrology, 20(7), 511. doi: 10.1111/nep.12428
Mulroy, E., Schollum, J., Putt, T., & Walker, R. (2015). Spontaneous perinephric haemorrhage in an end-stage renal disease patient with multiple renal pseudoaneurysms. Nephrology, 20(6), 441. doi: 10.1111/nep.12415
Conference Contribution - Verbal presentation and other Conference outputs
Kuan, I. H. S., Wright, D. F. B., Putt, T. L., Walker, R. J., & Duffull, S. B. (2015, September). Are conventional methods for measuring isotopic GFR really the gold standard? Verbal presentation at the Australasian Society of Clinical and Experimental Pharmacologists and Toxicologists New Zealand Section (ASCEPT-NZ) Annual Scientific Meeting, Queenstown, New Zealand.
Walker, R. (2015, August). Clinical research: Answering clinic-based questions. Invited presentation at the Inaugural Dunedin School of Medicine Symposium, Dunedin, New Zealand.
2014
Journal - Research Article
Egan, R., MacLeod, R., Tiatia, R., Wood, S., Mountier, J., & Walker, R. (2014). Spiritual care and kidney disease in NZ: A qualitative study with New Zealand renal specialists. Nephrology, 19(11), 708-713. doi: 10.1111/nep.12323
Haynes, R., Lewis, D., Emberson, J., Reith, C., Agodoa, L., Cass, A., … Walker, R., … for the SHARP Collaborative Group. (2014). Effects of lowering LDL cholesterol on progression of kidney disease. Journal of the American Society of Nephrology, 25(8), 1825-1833. doi: 10.1681/ASN.2013090965
Haynes, R., Staplin, N., Emberson, J., Herrington, W. G., Tomson, C., Agodoa, L., … on behalf of the SHARP Collaborative Group, including Walker, R. (2014). Evaluating the contribution of the cause of kidney disease to prognosis in CKD: Results from the Study of Heart and Renal Protection (SHARP). American Journal of Kidney Diseases, 64(1), 40-48. doi: 10.1053/j.ajkd.2013.12.013
Herrington, W., Emberson, J., Staplin, N., Blackwell, L., Fellström, B., Walker, R., … on behalf of the SHARP Investigators. (2014). The effect of lowering LDL cholesterol on vascular access patency: Post hoc analysis of the Study of Heart and Renal Protection. Clinical Journal of the American Society of Nephrology, 9(5), 919. doi: 10.2215/CJN.10371013
Weiner, I. D., Leader, J. P., Bedford, J. J., Verlander, J. W., Ellis, G., Kalita, P., Vos, F., de Jong, S., & Walker, R. J. (2014). Effects of chronic lithium administration on renal acid excretion in humans and rats. Physiological Reports, 2(12), e12242. doi: 10.14814/phy2.12242
Putt, T. L., Duffull, S. B., Schollum, J. B. W., & Walker, R. J. (2014). GFR may not accurately predict aspects of proximal tubule drug handling. European Journal of Clinical Pharmacology, 70(10), 1221-1226. doi: 10.1007/s00228-014-1733-7
Yao, Y., Fomison-Nurse, I. C., Harrison, J. C., Walker, R. J., Davis, G., & Sammut, I. A. (2014). Chronic bilateral renal denervation attenuates renal injury in a transgenic rat model of diabetic nephropathy. American Journal of Physiology: Renal Physiology, 307, F251-F262. doi: 10.1152/ajprenal.00578.2013
Berney-Meyer, L., Hung, N., Slatter, T., Schollum, J. B. W., Kitching, A. R., & Walker, R. J. (2014). Omeprazole-induced acute interstitial nephritis: A possible Th1–Th17-mediated injury? Nephrology, 19(6), 359-365. doi: 10.1111/nep.12226
Hoye, N. A., Baldi, J. C., Putt, T. L., Schollum, J. B., Wilkins, G. T., & Walker, R. J. (2014). Endovascular renal denervation: A novel sympatholytic with relevance to chronic kidney disease. Clinical Kidney Journal, 7(1), 3-10. doi: 10.1093/ckj/sft130
Bose, B., Badve, S. V., Hiremath, S. S., Boudville, N., Brown, F. G., Cass, A., … Palmer, S. C., … Walker, R. J., … Johnson, D. W. (2014). Effects of uric acid-lowering therapy on renal outcomes: A systematic review and meta-analysis. Nephrology Dialysis Transplantation, 29(2), 406-413. doi: 10.1093/ndt/gft378
Journal - Research Other
Schrieber, J., Xu-Holland, A., Walker, R., & Brockway, B. (2014). A rare pulmonary complication of myeloma therapy. Breathe, 10(3), 243-248. doi: 10.1183/20734735.014713
Roy, M., Walker, R., Blyth, P., & Wilkinson, T. (2014). Virtual reality-based assessment of clinical reasoning ability. Medical Education, 48, 1123. doi: 10.1111/medu.12559
Journal - Professional & Other Non-Research Articles
Wanner, C., Tonelli, M., and the Kidney Disease: Improving Global Outcomes Lipid Guideline Development Work Group Members, including Walker, R. J. (2014). KDIGO Clinical Practice Guideline for Lipid Management in CKD: Summary of recommendation statements and clinical approach to the patient. Kidney International, 85, 1303-1309. doi: 10.1038/ki.2014.31
Conference Contribution - Published proceedings: Abstract
Hoye, N. A., Baldi, J. C., Jardine, D. L., Wilkins, G. T., Wilson, L. C., & Walker, R. J. (2014). Endovascular renal denervation in dialysis-dependent renal failure to reduce cardiovascular risk. Nephrology Dialysis Transplantation, 29(Suppl. 3), (pp. iii9). doi: 10.1093/ndt/gfu111
Wilson, G., Hoye, N., Wilson, L., Shoemaker, J. K., Walker, R., Jardine, D., Schollum, J., Wilkins, G., & Baldi, J. C. (2014). Effect of renal ablation on blood pressure and muscle sympathetic nerve activity in chronic kidney disease patients. FASEB Journal, 28(1, Suppl.), LB722. [Abstract]
Putt, T., Duffull, S., Schollum, J., & Walker, R. (2014). GFR may not accurately predict aspects of proximal tubule drug handling. New Zealand Medical Journal, 127(1392). Retrieved from http://www.nzma.org.nz/journal
MacLeod, R., Egan, R., Walker, R., & Wood, S. (2014). Spiritual care and kidney disease in NZ: A qualitative study with New Zealand renal specialists. BMJ Supportive & Palliative Care, 4(Suppl. 1), (pp. A28). doi: 10.1136/bmjspcare-2014-000654.76
Conference Contribution - Verbal presentation and other Conference outputs
Walker, R. (2014, August). Insulin resistance in chronic kidney disease. Verbal presentation at the Queenstown Molecular Biology (QMB) Meetings, Queenstown, New Zealand.
2013
Chapter in Book - Research
Walker, R. J., & Endre, Z. H. (2013). Cellular mechanisms of drug nephrotoxicity. In R. J. Alpern, O. W. Moe & M. Caplan (Eds.), Seldin and Giebisch's the kidney: Physiology and pathophysiology (Vol. 2). (5th ed.) (pp. 2889-2932). London, UK: Academic Press. doi: 10.1016/B978-0-12-381462-3.00085-9
Journal - Research Article
Zacharias, M., Mugawar, M., Herbison, G. P., Walker, R. J., Hovhannisyan, K., Sivalingam, P., & Conlon, N. P. (2013). Interventions for protecting renal function in the perioperative period (Review). Cochrane Database of Systematic Reviews, 9, CD003590. doi: 10.1002/14651858.CD003590.pub4
Walker, R., Derrett, S., Campbell, J., Marshall, M. R., Henderson, A., Schollum, J., Williams, S., & McNoe, B. (2013). Dialysis outcomes in those aged ≥ 65 years. BMC Nephrology, 14, 175. doi: 10.1186/1471-2369-14-175
Mandic, S., Hodge, C., Stevens, E., Walker, R., Nye, E. R., Body, D., Barclay, L., & Williams, M. J. A. (2013). Effects of community-based cardiac rehabilitation on body composition and physical function in individuals with stable coronary artery disease: 1.6-year followup. BioMed Research International, 2013, 903604. doi: 10.1155/2013/903604
Mandic, S., Walker, R., Stevens, E., Nye, E. R., Body, D., Barclay, L., & Williams, M. J. A. (2013). Estimating exercise capacity from walking tests in elderly individuals with stable coronary artery disease. Disability & Rehabilitation, 35(22), 1853-1858. doi: 10.3109/09638288.2012.759629
Walker, R. J., Leader, J. P., Bedford, J. J., Gobe, G., Davis, G., Vos, F. E., deJong, S., & Schollum, J. B. W. (2013). Chronic interstitial fibrosis in the rat kidney induced by long-term (6-mo) exposure to lithium. American Journal of Physiology: Renal Physiology, 304(3), F300-F307. doi: 10.1152/ajprenal.00182.2012
Manning, P. J., Sutherland, W. H. F., Williams, S. M., Walker, R. J., Berry, E. A., De Jong, S. A., & Ryalls, A. R. (2013). The effect of lipoic acid and vitamin E therapies in individuals with the metabolic syndrome. Nutrition, Metabolism & Cardiovascular Diseases, 23(6), 543-549. doi: 10.1016/j.numecd.2011.11.006
Journal - Research Other
Baldi, J. C., Manning, P. J., Hofman, P. L., & Walker, R. J. (2013). Comment on: TODAY Study Group. Effects of Metformin, Metformin plus Rosiglitazone, and Metformin plus lifestyle on insulin sensitivity and β-cell function in TODAY. Diabetes Care 2013;36:1749-1757 [Comment]. Diabetes Care, 36, e223. doi: 10.2337/dc13-1426
Phipps, L., & Walker, R. (2013). Educational needs in supportive and end-of-life care. Nephrology, 18(6), 449-452. doi: 10.1111/nep.12065
Walker, R., Fassett, R. G., & Morton, R. L. (2013). Research issues in elderly patients: Gaps in knowledge and suggested directions. Nephrology, 18(6), 439-441. doi: 10.1111/nep.12065
Conference Contribution - Published proceedings: Full paper
Donnelly, J., Cotter, J. D., Walker, R. J., Burgess, K. R., Ainslie, P. N., Stembridge, M., Curtis, A. N., … Lucas, S. J. E. (2013). Acute mountain sickness is not reliably due to fluid regulatory or autonomic stress [Minipaper]. In J. D. Cotter, S. J. E. Lucas & T. Mündel (Eds.), Proceedings of the 15th International Conference on Environmental Ergonomics (ICEE). (pp. 78-80). International Society for Environmental Ergonomics. [Full Paper]
Conference Contribution - Published proceedings: Abstract
Shallcrass, M. D., Lucas, S. J. E., Walker, R. J., & Cotter, J. D. (2013). The role of brain blood flow in respiratory control during exercise. Proceedings of the Sport and Exercise Science New Zealand (SESNZ) Annual Conference: Exercise Science for Health and Sport Performance. (pp. 69). Retrieved from http://www.sesnz.org.nz/Conference/
Putt, T., Duffull, S., Schollum, J., & Walker, R. (2013). Drug dosing in the elderly: The impact of age and tubular function. Nephrology, 18(Suppl. 1), (pp. 42). doi: 10.1111/nep.12121
Kalita, P., Bahn, A., Bedford, J., Leader, J., & Walker, R. (2013). Amiloride modifies renal fibrosis induced by long term lithium treatment. Nephrology, 18(Suppl. 1), (pp. 57). doi: 10.1111/nep.12121
Kalita, P., Bahn, A., Bedford, J., Leader, J., & Walker, R. (2013). Long-term modulation of lithium-induced nephrogenic diabetes isipidus by amiloride. Nephrology, 18(Suppl. 1), (pp. 37). doi: 10.1111/nep.12121
Conference Contribution - Poster Presentation (not in published proceedings)
Jennings, M., Poole, T., & Walker, R. J. (2013, September). Modeling the matrix-cilium-golgi continuum in hyaline chondrocytes by electron tomography. Poster session presented at the Division of Health Sciences Research Forum: Foundations for Health: Otago Health Research, Christchurch, New Zealand.
Kalita, P., Bahn, A., Bedford, J., Leader, J., & Walker, R. (2013, September). Long term amiloride therapy attenuates lithium-induced kidney interstitial fibrosis. Poster session presented at the Division of Health Sciences Research Forum: Foundations for Health: Otago Health Research, Christchurch, New Zealand.
Hoye, N. A., Baldi, C., Jardine, D., Wilkins, G., Wilson, L. C., & Walker, R. (2013, September). Endovascular renal denervation in dialysis-dependent renal failure to reduce cardiovascular risk. Poster session presented at the Division of Health Sciences Research Forum: Foundations for Health: Otago Health Research, Christchurch, New Zealand.
Conference Contribution - Verbal presentation and other Conference outputs
Walker, R. (2013, December). The kidney in health and disease: An overview. Verbal presentation at the University of Otago Triple Theme Research Meeting: The Kidney in Health and Disease, Gut Health Network, Arthritis Research, Dunedin, New Zealand.
Roy, M., Wilkinson, T., Walker, R., & Blyth, P. (2013, June). Virtual reality based clinical cases: A novel method for assessment of competence and clinical reasoning ability. Workshop presentation at the Australian & New Zealand Association for Health Professional Educators (ANZAHPE) Conference: Professional Development of Health Professional Educators, Melbourne, Australia.
2012
Journal - Research Article
Pickering, J. W., Frampton, C. M., Walker, R. J., Shaw, G. M., & Endre, Z. H. (2012). Four hour creatinine clearance is better than plasma creatinine for monitoring renal function in critically ill patients. Critical Care, 16, R107. doi: 10.1186/cc11391
Nejat, M., Pickering, J. W., Devarajan, P., Bonventre, J. V., Edelstein, C. L., Walker, R. J., & Endre, Z. H. (2012). Some biomarkers of acute kidney injury are increased in pre-renal acute injury. Kidney International, 81, 1254-1262. doi: 10.1038/ki.2012.23
Schollum, J. B. W., & Walker, R. J. (2012). Adult urinary tract infection. British Journal of Hospital Medicine, 73(4), 218-223.
Winburn, I. C., Gunatunga, K., McKernan, R. D., Walker, R. J., Sammut, I. A., & Harrison, J. C. (2012). Cell damage following carbon monoxide releasing molecule exposure: Implications for therapeutic applications. Basic & Clinical Pharmacology & Toxicology, 111(1), 31-41. doi: 10.1111/j.1742-7843.2012.00856.x
Berney-Meyer, L., Putt, T., Schollum, J., & Walker, R. (2012). Nephrotoxicity of recreational party drugs. Nephrology, 17(2), 99-103. doi: 10.1111/j.1440-1797.2011.01537.x
Todd, A. S., MacGinley, R. J., Schollum, J. B. W., Williams, S. M., Sutherland, W. H. F., Mann, J. I., & Walker, R. J. (2012). Dietary sodium loading in normotensive healthy volunteers does not increase arterial vascular reactivity or blood pressure. Nephrology, 17(3), 249-256. doi: 10.1111/j.1440-1797.2011.01550.x
Ting, Y.-T., Coates, P. T., Walker, R. J., & McLellan, A. D. (2012). Urinary tubular biomarkers as potential early predictors of renal allograft rejection. Nephrology, 17(1), 11-16. doi: 10.1111/j.1440-1797.2011.01536.x
Vos, F. E., Schollum, J. B., Coulter, C. V., Manning, P. J., Duffull, S. B., & Walker, R. J. (2012). Assessment of markers of glycaemic control in diabetic patients with chronic kidney disease using continuous glucose monitoring. Nephrology, 17(2), 182-188. doi: 10.1111/j.1440-1797.2011.01517.x
Conference Contribution - Published proceedings: Abstract
Lovell, S., Derrett, S., & Walker, R. (2012). Ageing, chronic kidney disease and the decision to dialyse amongst older adults. Proceedings of the New Zealand Geographical Society Conference: 'Connecting Landscapes'. (pp. 92). Retrieved from http://www.nzgs.co.nz/
Anagnostopoulou, A., Walker, R., Jeffs, A., Scherer, A., Bedford, J., Leader, J., … Marti, H.-P. (2012). A subset of metzincins and related genes constitutes a marker of solid organ fibrosis across species. Nephrology Dialysis Transplantation, 27(Suppl. 2), (pp. 44). doi: 10.1093/ndt/gfs198
Pickering, J. W., Frampton, C. M., Walker, R. J., Shaw, G. M., & Endre, Z. H. (2012). 4-hour creatinine clearance in the intensive care unit. Nephrology, 17(Suppl. 2), (pp. 45). doi: 10.1111/j.1440-1797.2012.01631.x
Marti, H. P., Jeffs, A., Scherer, A., Leader, J., Bedford, J., Davis, G., … Walker, R. (2012). Solid organ fibrosis: Evidence for a common pathway across species! Nephrology, 17(Suppl. 2), (pp. 57). doi: 10.1111/j.1440-1797.2012.01632.x
Mandic, S., Walker, R., Stevens, E., Brown, C., Giraldo Ocampo, D., Nye, E. R., … Barclay, L., & Williams, M. J. A. (2012). Correlates of exercise capacity in elderly individuals with and without coronary artery disease. Medicine & Science in Sports & Exercise, 44(5, Suppl. 2), (pp. 403). doi: 10.1249/01.mss.0000417529.22755.ed
Mandic, S., Walker, R., Stevens, E., McIlraith, B., Featherston, S., Nye, E. R., … Barclay, L., & Williams, M. J. A. (2012). Field versus laboratory tests: Exercise capacity estimates in elderly patients with coronary artery disease. Medicine & Science in Sports & Exercise, 44(5, Suppl. 2), (pp. 294). doi: 10.1249/01.mss.0000417529.22755.ed
Lagishetty, C., Putt, T., Guilford, P., Walker, R., & Duffull, S. (2012). Evaluation of biological age indices to predict drug clearance. Proceedings of the Medical Sciences Congress (MedSci). (pp. 23-24). Retrieved from http://www.medscinz.co.nz/QRW2012%20MedSci%20Abstracts.pdf
Mandic, S., Williams, M. J. A., Stevens, E., Brown, C., Nye, E. R., Body, D., … Walker, R. (2012). Long-term effects of cardiac rehabilitation on exercise capacity and cardiovascular function in coronary artery disease. Heart, Lung & Circulation, 21(8), (pp. 499). doi: 10.1016/j.hlc.2012.03.059
Mandic, S., Hodge, C., Stevens, E., Horwood, H., Walker, R., Nye, E. R., … Williams, M. J. A. (2012). Effects of community-based cardiac rehabilitation on physical function and body composition in coronary artery disease: 1.5-year follow-up. Heart, Lung & Circulation, 21(8), (pp. 499-500). doi: 10.1016/j.hlc.2012.03.060
Conference Contribution - Poster Presentation (not in published proceedings)
Jennings, M., Poole, T., & Walker, R. J. (2012, September). Modelling the matrix-cilium-golgi continuum in hyaline chondrocytes by electron tomography. Poster session presented at the Division of Health Sciences Research Forum: Health Matters: Research Excellence at Otago, Dunedin, New Zealand.
Conference Contribution - Verbal presentation and other Conference outputs
Poole, C. A., Stayner, C., McGlashan, S. R., Parker, K., Wiles, A., Jennings, M., … Johnstone, A. C., Walker, R. J., & Eccles, M. R. (2012, August). Primary cilia defects in the polycystic kidneys from an ovine model of Meckel Gruber syndrome. Verbal presentation at the Translational Nephrology Conference: From Mechanics to Therapeutics, Queenstown, New Zealand.
Stayner, C., Lett, B., Slobbe, L., Wiles, A., Jennings, M., Markie, D., … Johnstone, A. C., Walker, R. J., Poole, C. A., & Eccles, M. (2012, August). Renal cystic disease: Developing an ovine model. Verbal presentation at the Translational Nephrology Conference: From Mechanics to Therapeutics, Queenstown, New Zealand.
Leader, J., Bedford, J., & Walker, R. (2012, August). Morphological changes in kidneys of rats after long term (six months) exposure to lithium. Verbal presentation at the Translational Nephrology Conference: From Mechanics to Therapeutics, Queenstown, New Zealand.
Kalita, P., Bahn, A., Walker, R., Leader, J., & Bedford, J. (2012, August). Mechanism underlying kidney fibrosis in rats due to prolonged lithium treatment. Verbal presentation at the Translational Nephrology Conference: From Mechanics to Therapeutics, Queenstown, New Zealand.
2011
Journal - Research Article
Vos, F. E., Schollum, J. B., & Walker, R. J. (2011). Glycated albumin is the preferred marker for assessing glycaemic control in advanced chronic kidney disease. NDT Plus, 4(6), 368-375. doi: 10.1093/ndtplus/sfr140
Korell, J., Vos, F. E., Coulter, C. V., Schollum, J. B., Walker, R. J., & Duffull, S. B. (2011). Modeling red blood cell survival data. Journal of Pharmacokinetics & Pharmacodynamics, 38(6), 797-801. doi: 10.1007/s10928-011-9220-6
Endre, Z. H., Pickering, J. W., & Walker, R. J. (2011). Clearance and beyond: The complementary roles of GFR measurement and injury biomarkers in acute kidney injury (AKI). American Journal of Physiology: Renal Physiology, 301(4), F697-F707. doi: 10.1152/ajprenal.00448.2010
Vos, F. E., Schollum, J. B., Coulter, C. V., Doyle, T. C. A., Duffull, S. B., & Walker, R. J. (2011). Red blood cell survival (RBC) in patients on long-term dialysis. Nephrology, 16(Suppl. 1), 74. doi: 10.1111/j.1440-1797.2011.01493_7.x
Bird, S. D., Legge, M., & Walker, R. J. (2011). Thiols stabilize cobblestone morphology of cultured mesothelial cells. Cell Biology International, 35(8), 857-867. doi: 10.1042/CBI20100593
Vos, F. E., Schollum, J. B., Coulter, C. V., Doyle, T. C. A., Duffull, S. B., & Walker, R. J. (2011). Red blood cell survival in long-term dialysis patients. American Journal of Kidney Diseases, 58(4), 591-598. doi: 10.1053/j.ajkd.2011.03.031
Baigent, C., Landray, M. J., Reith, C., Emberson, J., Wheeler, D. C., Tomson, C., … Walker, R., … on behalf of the SHARP Investigators. (2011). The effects of lowering LDL cholesterol with simvastatin plus ezetimibe in patients with chronic kidney disease (Study of Heart and Renal Protection): A randomised placebo-controlled trial. Lancet, 377(9784), 2181-2192. doi: 10.1016/S0140-6736(11)60739-3
Slade, H., Williams, S. M., Manning, P. J., & Walker, R. J. (2011). High-risk diabetic nephropathy patients: The outcome of evidence-based clinical practice in an outpatient clinic. Diabetes Research & Clinical Practice, 92(3), 356-360. doi: 10.1016/j.diabres.2011.02.022
Li, P. K.-T., Cheung, W. L., Lui, S. L., Blagg, C., Cass, A., Hooi, L. S., … Walker, R., … Yu, A. W.-Y. (2011). Increasing home-based dialysis therapies to tackle dialysis burden around the world: A position statement on dialysis economics from the 2nd Congress of the International Society for Hemodialysis. Hemodialysis International, 15(1), 10-14. doi: 10.1111/j.1542-4758.2010.00512.x
Endre, Z. H., Pickering, J. W., Walker, R. J., Devarajan, P., Edelstein, C. L., Bonventre, J. V., Frampton, C. M., … Shaw, G. M., Henderson, S. J., Nejat, M., Schollum, J. B. W., & George, P. M. (2011). Improved performance of urinary biomarkers of acute kidney injury in the critically ill by stratification for injury duration and baseline renal function. Kidney International, 79, 1119-1130. doi: 10.1038/ki.2010.555
Vos, F. E., Manning, P. J., Sutherland, W. H. F., Schollum, J. B., & Walker, R. J. (2011). Anti-inflammatory effect of an insulin infusion in patients on maintenance haemodialysis: A randomized controlled pilot study. Nephrology, 16(1), 68-75. doi: 10.1111/j.1440-1797.2010.01329.x
Conference Contribution - Published proceedings: Abstract
Todd, A., Walker, R., MacGinley, R., Schollum, J., Sutherland, W., Mann, J., & Williams, S. (2011). Sodium and vascular function: Should we be looking beyond blood pressure? Nutrition & Dietetics, 68(Suppl. 2), (pp. 8). [Abstract]
Vos, F. E., Schollum, J. B., Coulter, C. V., Manning, P. J., Duffull, S. B., & Walker, R. J. (2011). Assessment of glycaemic control in chronic kidney disease. Nephrology, 16(Suppl. 1), (pp. 38). doi: 10.1111/j.1440-1797.2011.01493_7.x
Korell, J., Vos, F., Coulter, C., Schollum, J., Walker, R., & Duffull, S. (2011). Modelling red blood cell survival data. Proceedings of the Twentieth Annual Meeting of the Population Approach Group in Europe. PAGE. Retrieved from http://www.page-meeting.org/?abstract=2050
Korell, J., Vos, F., Sanhajariya, S., Coulter, C., Schollum, J., Walker, R., & Duffull, S. (2011). Modelling red blood cell data. Proceedings of the Population Approach Group in Australia and New Zealand Meeting (PAGANZ). PAGANZ. Retrieved from http://www.paganz.org/default.asp?id=45&keuze=program
Conference Contribution - Poster Presentation (not in published proceedings)
Eccles, M. R., Lett, B., Stayner, C., Wiles, A., Slobbe, L., Parker, K., Johnstone, A. C., Walker, R. J., … Markie, D. (2011, October). Genetic and phenotypic characterization of an ovine large animal model of the MKS/JBTS/NPHP ciliopathy, Meckel-Gruber syndrome. Poster session presented at the 12th International Congress of Human Genetics (ICHG) and 61st Annual Meeting of the American Society of Human Genetics (ASHG), Montreal, Canada.
Poole, C. A., Stayner, C., McGlashan, S. R., Parker, K., Wiles, A., Jennings, M., … Johnstone, A. C., Walker, R. J., & Eccles, M. R. (2011, June-July). Primary cilia defects in an ovine model of Meckel Gruber syndrome. Poster session presented at the FASEB Summer Research Conference: Polycystic Kidney Disease: From Bench to Bedside, Saxtons River, Vermont.
Wiles, A., Lett, B., Stayner, C., Slobbe, L., Markie, D., McEwan, J., Johnstone, A. C., Walker, R. J., Poole, C. A., & Eccles, M. (2011, June-July). A large animal ciliopathy: Genetic characterization of an ovine model of Meckel-Gruber syndrome. Poster session presented at the FASEB Summer Research Conference: Polycystic Kidney Disease: From Bench to Bedside, Saxtons River, Vermont.
Conference Contribution - Verbal presentation and other Conference outputs
Stayner, C., Lett, B., Slobbe, L., Wiles, A., Markie, D., McEwan, J., … Walker, R. J., Poole, C. A., & Eccles, M. (2011, September). Novel missense mutations in an ovine model of Meckel-Gruber Syndrome. Verbal presentation at the Queenstown Molecular Biology (QMB) Meetings, Queenstown, New Zealand.
2010
Journal - Research Article
SHARP Collaborative Group, including Walker, R. (2010). Study of Heart and Renal Protection (SHARP): Randomized trial to access the effects of lowering low-density lipoprotein cholesterol among 9,438 patients with chronic kidney disease. American Heart Journal, 160(5), 785-794 e10. doi: 10.1016/j.ahj.2010.08.012
Nejat, M., Pickering, J. W., Walker, R. J., Westhuyzen, J., Shaw, G. M., Frampton, C. M., & Endre, Z. H. (2010). Urinary cystatin C is diagnostic of acute kidney injury and sepsis, and predicts mortality in the intensive care unit. Critical Care, 14(3), R85. doi: 10.1186/cc9014
Derrett, S., Darmody, M., Williams, S., Rutherford, M., Schollum, J., & Walker, R. (2010). Older peoples' satisfaction with home-based dialysis. Nephrology, 15(4), 464-470. doi: 10.1111/j.1440-1797.2010.01286.x
Nejat, M., Pickering, J. W., Walker, R. J., & Endre, Z. H. (2010). Rapid detection of acute kidney injury by plasma cystatin C in the intensive care unit. Nephrology Dialysis Transplantation, 25, 3283-3289. doi: 10.1093/ndt/gfq176
Todd, A. S., MacGinley, R. J., Schollum, J. B. W., Johnson, R. J., Williams, S. M., Sutherland, W. H. F., Mann, J. I., & Walker, R. J. (2010). Dietary salt loading impairs arterial vascular reactivity. American Journal of Clinical Nutrition, 91(3), 557-564. doi: 10.3945/ajcn.2009.28645
Endre, Z. H., Walker, R. J., Pickering, J. W., Shaw, G. M., Frampton, C. M., Henderson, S. J., Hutchison, R., … Robinson, J. M., Schollum, J. B. W., … Celi, L. A., … George, P. M. (2010). Early intervention with erythropoietin does not affect the outcome of acute kidney injury (the EARLYARF trial). Kidney International, 77, 1020-1030. doi: 10.1038/ki.2010.25
Ting, Y. T., Coates, T. P., Marti, H. P., Dunn, A. C., Parker, R. M., Pickering, J. W., Jack, R. W., Kemp, R. A., Walker, R. J., & McLellan, A. D. (2010). Urinary soluble HLA-DR is a potential biomarker for acute renal transplant rejection. Transplantation, 89(9), 1071-1078. doi: 10.1097/TP.0b013e3181d15492
Journal - Research Other
Walker, R. (2010). The composition of peritoneal dialysis solutions: Tinkering or significant changes? [Commentary]. Peritoneal Dialysis International, 30(6), 600-601. doi: 10.3747/pdi.2010.00076
Conference Contribution - Published proceedings: Abstract
Endre, Z. H., Pickering, J. W., Walker, R. J., Devarajan, P., Edelstein, C. L., & Bonventre, J. V. (2010). Duration of injury and baseline renal function define biomarker performance in acute kidney injury. Journal of the American Society of Nephrology, 21, (pp. 3A). [Abstract]
Yoon, H.-S., Wilson, J. C., Walker, R. J., & Eccles, M. R. (2010). A novel CYS1638TYR NC1 domain substitution in α5 (IV) collagen causes Alport syndrome with late onset renal failure without hearing loss or eye abnormalities. Histopathology. 57(Suppl. 1), (pp. 237). doi: 10.1111/j.1365-2559.2010.03637.x
Conference Contribution - Poster Presentation (not in published proceedings)
Poole, T., McGlashan, S., Jensen, C., Eccles, M., Lett, B., Stayner, C., … Jennings, M., Wiles, A., & Walker, R. (2010, August-September). Primary cilia defects in an ovine model of Meckel-Gruber Syndrome. Poster session presented at the Queenstown Molecular Biology (QMB) Meetings, Queenstown, New Zealand.
Jennings, M., Poole, T., Walker, R., Mitchell, A., Easingwood, R., Harland, D., & Walls, R. (2010, August-September). An electron tomographic model of the Matrix-Cilium-Golgi Continuum in hyaline chondrocytes. Poster session presented at the Queenstown Molecular Biology (QMB) Meetings, Queenstown, New Zealand.
Poole, C. A., McGlashan, S. R., Jensen, C. G., Eccles, M. R., Lett, B., Stayner, C., Johnstone, A. C., Jennings, M., Wiles, A., & Walker, R. J. (2010, July). Primary cilia defects on an ovine model of Meckel-Gruber Syndrome. Poster session presented at the FASEB Summer Research Conference: The Biology of Cilia and Flagella, Saxtons River, Vermont.
Jennings, M., Poole, C. A., Walker, R. J., Mitchell, A., Easingwood, R., Harland, D., & Walls, R. (2010, July). An electron tomographic model of the Matrix - Cilium - Golgi Continuum in hyaline chondrocytes. Poster session presented at the FASEB Summer Research Conference: The Biology of Cilia and Flagella, Saxtons River, Vermont.
Conference Contribution - Verbal presentation and other Conference outputs
Eccles, M., Lett, B., Wiles, A., Jennings, M., Slobbe, L., Walker, R., Poole, A., & Stayner, C. (2010, August-September). A novel primary cilia phenotype characterizes an ovine polycystic kidney disease that maps to the Meckel syndrome gene, MKS3. Verbal presentation at the Queenstown Molecular Biology (QMB) Meetings, Queenstown, New Zealand.
Walker, R., Bedford, J., Davis, G., Gobe, G., Schollum, J., & Leader, J. (2010, August-September). Long term lithium-induced chronic interstitial fibrosis. Verbal presentation at the Queenstown Molecular Biology (QMB) Meetings, Queenstown, New Zealand.
Walker, R. (2010, November-December). Chronic fibrosis in kidney disease. Verbal presentation at the Medical Sciences Congress: A New Decade of Discovery (MedSciNZ), Queenstown, New Zealand.
Davis, G., Bedford, J., Leader, J., & Walker, R. (2010, November-December). Lithium treated rats have an impaired ability to acidify their urine. Verbal presentation at the Medical Sciences Congress: A New Decade of Discovery (MedSciNZ), Queenstown, New Zealand.
Eccles, M., Lett, B., Wiles, A., Jennings, M., Slobbe, L., Poole, A., Stayner, C., & Walker, R. (2010, November-December). Primary cilia abnormalities characterize an ovine polycystic kidney disease that maps to the Meckel syndrome gene, MKS3. Verbal presentation at the Medical Sciences Congress: A New Decade of Discovery (MedSciNZ), Queenstown, New Zealand.
Other Research Output
McCall, J., Walker, R. & McLellan, A. (2010, April). The immune system and organ transplantation. World Day of Immunology Public Lecture, Dunedin, New Zealand. [Public Seminar].
2009
Journal - Research Article
Bird, S. D., Walker, R. J., & Legge, M. (2009). L-Cysteine improves survival and growth of mesothelial cells after freezing. Cell Biology International, 33(11), 1155-1164. doi: 10.1016/j.cellbi.2009.08.003
Conference Contribution - Published proceedings: Abstract
Ting, Y., Coates, P. T., Marti, H., Dunn, A. C., Parker, R. M., Jack, R. W., Kemp, R. A., Walker, R. J., & McLellan, A. D. (2009). Urinary soluble HLA-DR is a potential biomarker for acute renal transplant rejection. Proceedings of the Australasian Society for Immunology 39th Annual Scientific Meeting. ASI. Retrieved from http://www.asi2009.org/
Vos, F. E., Manning, P. J., Sutherland, W. H. F., Schollum, J., & Walker, R. J. (2009). Does insulin have an anti-inflammatory effect in patients with end-stage renal disease on haemodialysis? Nephrology. 14(Suppl. 1), (pp. A4). [Abstract]
MacGinley, R. J., Todd, A. S., & Walker, R. J. (2009). Loss of endothelial plasticity as a mechanism for the salt sensitive patient with essential hypertension. International Journal of Cardiology, 137(Suppl. 1), (pp. S104-S105). doi: 10.1016/j.ijcard.2009.09.353
Conference Contribution - Poster Presentation (not in published proceedings)
Vos, F. E., Manning, P. J., Sutherland, W. H. F., Schollum, J., & Walker, R. J. (2009, September). Does insulin have an anti-inflammatory effect on haemodialysis in patients with end-stage renal disease? Poster session presented at the Third Annual Division of Health Sciences Research Forum, Wellington, New Zealand.
Conference Contribution - Verbal presentation and other Conference outputs
Ting, Y.-T., Walker, R., Coates, P. T., Dunn, A. C., Parker, R., Jack, R. W., … McLellan, A. D. (2009, June). Soluble HLA-DR: A potential urinary biomarker for renal transplant rejection. Verbal presentation at the New Zealand Australasian Society for Immunology (NZ ASI) Branch Meeting, Wellington, New Zealand.
2008
Chapter in Book - Research
Walker, R. J., & Endre, Z. H. (2008). Cellular mechanisms of drug nephrotoxicity. In R. J. Alpern & S. C. Hebert (Eds.), Seldin and Giebisch's: The kidney: Physiology and pathophysiology (Vols. 1-2). (4th ed.) (pp. 2507-2536). Burlington, MA: Academic Press.
Journal - Research Article
Manning, P. J., Sutherland, W. H. F., McGrath, M. M., de Jong, S. A., Walker, R. J., & Williams, M. J. A. (2008). Postprandial cytokine concentrations and meal composition in obese and lean women. Obesity, 16(9), 2046-2052. doi: 10.1038/oby.2008.334
Khan, E., Huggan, P., Celi, L., MacGinley, R., Schollum, J., & Walker, R. (2008). Sustained low-efficiency dialysis with filtration (SLEDD-f) in the management of acute sodium valproate intoxication. Hemodialysis International, 12(2), 211-214.
Bedford, J. J., Weggery, S., Ellis, G., McDonald, F. J., Joyce, P. R., Leader, J. P., & Walker, R. J. (2008). Lithium-induced nephrogenic diabetes insipidus: Renal effects of amiloride. Clinical Journal of the American Society of Nephrology, 3(5), 1324-1331.
Merry, T. L., Ainslie, P. N., Walker, R., & Cotter, J. D. (2008). Fitness alters fluid regulatory but not behavioural responses to hypohydrated exercise. Physiology & Behavior, 95(3), 348-352.
Lucas, S. J. E., Anglem, N., Roberts, W. S., Anson, J. G., Palmer, C. D., Walker, R. J., … Cotter, J. D. (2008). Intensity and physiological strain of competitive ultra-endurance exercise in humans. Journal of Sports Sciences, 26(5), 477-489.
Manning, P. J., Sutherland, W. H. F., Walker, R. J., de Jong, S. A., & Berry, E. A. (2008). The effect of glucose ingestion on inflammation and oxidative stress in obese individuals. Metabolism, 57, 1345-1349.
Manning, P. J., Sutherland, W. H. F., Walker, R. J., Williams, S. M., de Jong, S. A., & Berry, E. A. (2008). The effect of rosiglitazone on oxidative stress and insulin resistance in overweight individuals. Diabetes Research & Clinical Practice, 81, 209-215.
Bedford, J. J., Leader, J. P., Jing, R., Walker, L. J., Klein, J. D., Sands, J. M., & Walker, R. J. (2008). Amiloride restores renal medullary osmolytes in lithium-induced nephrogenic diabetes insipidus. American Journal of Physiology: Renal Physiology, 294, F812-F820. doi: 10.1152/ajprenal.00554.2007
Zacharias, M., Conlon, N. P., Herbison, G. P., Sivalingam, P., Walker, R. J., & Hovhannisyan, K. (2008). Interventions for protecting renal function in the perioperative period (Review). Cochrane Database of Systematic Reviews, 4, CD003590. doi: 10.1002/14651858.CD003590.pub3
Conference Contribution - Published proceedings: Abstract
Manning, P. J., Sutherland, W. H. F., McGrath, M., de Jong, S. A., Walker, R. J., & Williams, M. J. A. (2008). The effect of meals rich in different types of fat and carbohydrate on plasma inflammatory cytokine concentrations in obese and lean women. Diabetes Research and Clinical Practice. 79(Suppl. 1), (pp. S16). [Abstract]
Winburn, I., Yao, Y., Hill, J., Endre, Z., Walker, R., & Sammut, I. (2008). Assessment of auto-regulation and endothelial function in kidneys undergoing hypothermic pulsatile perfusion. Transplantation. 86(Suppl. 2), (pp. 83-84). [Abstract]
Winburn, I., Yao, Y., Hill, J., Walker, R., Endre, Z., & Sammut, I. (2008). Renal auto-regulation and endothelial function during hypothermic pulsatile perfusion. Proceedings of the Australasian Society of Clinical and Experimental Pharmacologists and Toxicologists New Zealand Annual Scientific Meeting. ASCEPT. Retrieved from http://phal.otago.ac.nz/ascept_docos/programme%202008.pdf
Todd, A., MacGinley, R., Schollum, J., Sutherland, W., Mann, J., & Walker, R. (2008). Sodium and hypertension: Is blood vessel function affected by dietary sodium intake? Journal of Hypertension, 26(Suppl. 1), (pp. S387). [Abstract]
Manning, P. J., Sutherland, W. H. F., Walker, R. J., de Jong, S. A., & Berry, E. A. (2008). The effect of glucose ingestion on inflammation and oxidative stress in obesity. Diabetes Research and Clinical Practice. 79(Suppl. 1), (pp. S26). [Abstract]
Conference Contribution - Poster Presentation (not in published proceedings)
Ting, Y.-T., Dunn, A. C., Parker, R., Jack, R. W., Berney-Meyer, L., Walker, R., & McLellan, A. D. (2008, August-September). Biochemical characterization of soluble HLA-DR: A potential urinary biomarker for renal transplant rejection. Poster session presented at the Queenstown Molecular Biology Meetings, Queenstown, New Zealand.
Winburn, I., Yao, Y., Hill, J., Walker, R., Endre, Z., & Sammut, I. (2008, August-September). Modulation of renal vascular function following administration of carbon monoxide during hypothermic pulsatile perfusion in a model of transplant ischaemia reperfusion injury. Poster session presented at the Queenstown Molecular Biology Meetings, Queenstown, New Zealand.
Todd, A. S., MacGinley, R. J., Schollum, J. B. W., Sutherland, W. H. F., Mann, J. I., & Walker, R. J. (2008, August-September). Sodium and hypertension: Is blood vessel function affected by dietary sodium intake? Poster session presented at the Queenstown Molecular Biology Meetings, Queenstown, New Zealand.
Conference Contribution - Verbal presentation and other Conference outputs
Winburn, I., Hill, J., Walker, R., Endre, Z., & Sammut, I. (2008, April). Renal vascular function during hypothermic pulsatile perfusion. Verbal presentation at the British Transplantation Society 11th Annual Congress, Glasgow, Scotland.
Walker, R. (2008, August-September). Lithium, aquaporins, and renal water handling. Verbal presentation at the Queenstown Molecular Biology Meetings, Queenstown, New Zealand.
2007
Journal - Research Article
Sutherland, W. H. F., Manning, P. J., Walker, R. J., de Jong, S. A., Ryalls, A. R., & Berry, E. A. (2007). Vitamin E supplementation and plasma 8-isoprostane and adiponectin in overweight subjects. Obesity, 15(2), 386-391. doi: 10.1038/oby.2007.546
Kerr, P. G., Sutherland, W. H. F., de Jong, S., Vaithalingham, I., Williams, S. M., & Walker, R. J. (2007). The impact of standard high-flux polysulfone versus novel high-flux polysulfone dialysis membranes on inflammatory markers: A randomized, single-blinded, controlled clinical trial. American Journal of Kidney Diseases, 49(4), 533-539. doi: 10.1053/j.ajkd.2006.12.019
Bradford, C. D., Cotter, J. D., Thorburn, M. S., Walker, R. J., & Gerrard, D. F. (2007). Exercise can be pyrogenic in humans. American Journal of Physiology: Regulatory, Integrative & Comparative Physiology, 292, R143-R149. doi: 10.1152/ajpregu.00926.2005
Sutherland, W. H. F., de Jong, S. A., & Walker, R. J. (2007). Effect of dietary cholesterol and fat on cell cholesterol transfer to postprandial plasma in hyperlipidemic men. Lipids, 42, 901-911. doi: 10.1007/s11745-007-3101-1
Wilson, J. C., Yoon, H.-S., Walker, R. J., & Eccles, M. R. (2007). A novel Cys1638Tyr NC1 domain substitution in α5(IV) collagen causes Alport syndrome with late onset renal failure without hearing loss or eye abnormalities. Nephrology Dialysis Transplantation, 22(5), 1338-1346. doi: 10.1093/ndt/gfl793
Journal - Research Other
Connor, A., Highton, J., Hung, N. A., Dunbar, J., MacGinley, R., & Walker, R. (2007). Multicentric carpal-tarsal osteolysis with nephropathy treated successfully with cyclosporine A: A case report and literature review. American Journal of Kidney Diseases, 50(4), 649-654. doi: 10.1053/j.ajkd.2007.06.014
Conference Contribution - Published proceedings: Abstract
Endre, Z. H., Bennett, M., Celi, L., Dastrala, S., Devarajan, P., Dean, J., Frampton, C., Henderson, S., … Shaw, G., Walker, R., & Westhuyzen, J. (2007). Urinary gamma glutamyl transpeptidase-alkaline phosphatase indexed to urinary creatinine (GGT-AP) is correlated with urinary neutrophil gelatinase associated lipocalin (NGAL) on admission to Intensive Care. Journal of the American Society of Nephrology, 18, (pp. 576A). [Abstract]
2006
Journal - Research Article
Zoungas, S., McGrath, B. P., Branley, P., . . ., Walker, R., & McNeil, J. J. (2006). Cardiovascular morbidity and mortality in the Atherosclerosis and Folic Acid Supplementation Trial (ASFAST) in chronic renal failure. JACC, 47(6), 1108-1116.
Conference Contribution - Published proceedings: Abstract
Winburn, I. C., Harrison, J. C., MacGinley, R. J., Walker, R. J., & Sammut, I. A. (2006). Renal tubular damage following carbon monoxide releasing molecule exposure: Implications for future treatment of transplant ischaemia reperfusion injury. Transplantation. 82(Suppl. 3), (pp. 1043). [Abstract]
Leader, J., Jing, R., Walker, R., & Bedford, J. (2006). The effect of amiloride in lithium-induced nephrogenic diabetes insipidus in rats. FASEB Journal, 20(5), 754.17, (pp. A1222). [Abstract]
Jing, R., Bedford, J., Walker, R., & Leader, J. (2006). Correction of the urine concentrating defect in rats with lithium-induced nephrogenic diabetes insipidus by amiloride. Journal of the American Society of Nephrology. 17, (pp. 537A). [Abstract]
Bedford, J. J., Yang, B. S., Walker, R. J., & Leader, J. P. (2006). Upregulation of the taurine transporter, TAUT, in the renal medulla of thirsted rats. FASEB Journal, 20(5), 754.16, (pp. A1221). [Abstract]
2005
Journal - Research Article
Walker, R. (2005). Cardiovascular risk factors: Lipid-lowering therapy in patients with chronic kidney disease. Nephrology, 10, S231-S234.
Zacharias, M., Gilmore, I. C. S., Herbison, G. P., Sivalingam, P., & Walker, R. J. (2005). Interventions for protecting renal function in the perioperative period (Review). Cochrane Database of Systematic Reviews, 3. doi: 10.1002/14651858.CD003590.pub2
Thomas, M., Blennerhassett, J., & Walker, R. (2005). Relapse with transformation of lupus nephritis in a transplant kidney [Case report]. Lupus, 14, 554-556.
Sutherland, W. H. F., de Jong, S. A., & Walker, R. J. (2005). Hypochlorous acid and 3,4-dihydroxyphenylalanine increase the formation of serum protein lipofuscin-like fluorophores in vitro. Renal Failure, 27, 239-246.
Walker, R. J., Weggery, S., Bedford, J. J., McDonald, F. J., Ellis, G., & Leader, J. P. (2005). Lithium-induced reduction in urinary concentrating ability and urinary aquaporin 2 (AQP2) excretion in healthy volunteers. Kidney International, 67, 291-294.
Baker, J., Cotter, J. D., Gerrard, D. F., Bell, M. L., & Walker, R. J. (2005). Effects of indomethacin and celecoxib on renal function in athletes. Medicine & Science in Sports & Exercise, 37(5), 712-717.
Journal - Research Other
Manning, P. J., Sutherland, W. H. F., & Walker, R. J. (2005). Effect of high-dose vitamin E on insulin resistance and associated parameters in overweight subjects [Response to Vale]. Diabetes Care, 28(1), 230-231.
Haider, M., Gain, E., Khadem, G., Pilmore, H., Yun, K., Jayasinghe, J., & Walker, R. (2005). Simultaneous presentation of rofecoxib-induced acute hepatitis and acute interstitial nephritis [Letter to the editor]. Internal Medicine Journal, 35, 370-372.
Conference Contribution - Published proceedings: Abstract
Bedford, J. J., Jing, R., Walker, R. J., & Leader, J. P. (2005). The effect of amiloride on aquaporins 1-4 in rats with lithium-induced nephrogenic diabetes insipidus. Proceedings of the Cell Volume Control in Health and Disease Conference. (pp. 77). Copenhagen, Denmark. [Abstract]
Jing, Y., Bedford, J. J., Walker, R. J., & Leader, J. P. (2005). The effect of amiloride on lithium-induced nephrogenic diabetes insipidus in rats. Proceedings of the Medical Sciences Congress. (pp. 39). [Abstract]
Bradford, C. D., Walker, R. J., Gerrard, D. F., Thorburn, M., & Cotter, J. D. (2005). Is exercise pyrogenic? Medicine & Science in Sports & Exercise, 37(Suppl. 5), (pp. S129). [Abstract]
Cotter, J. D., Lucas, S. J. E., Roberts, W. S., Walker, R. J., Palmer, C. D., & Rehrer, N. J. (2005). Altered fluid balance during 100 hours of exercise and sleep deprivation. Medicine & Science in Sports & Exercise, 37(Suppl. 5), (pp. S405). [Abstract]
2004
Chapter in Book - Other
Kay, I. P., & Walker, R. J. (2004). Who should not go to the cathlab? In I. P. Kay, M. Sabaté & M. A. Costa (Eds.), Cardiac catheterization and percutaneous interventions. (pp. 1-7). London: Taylor & Francis Group.
Journal - Research Article
Palmer, S., Birks, C. L., Dunbar, J., & Walker, R. J. (2004). Simultaneous multiple tendon ruptures complicating a seizure in a haemodialysis patient. Nephrology, 9, 262-264.
Cooper, B. A., Branley, P., Bulfone, L., Collins, J. F., Craig, J. C., Dempster, J., … the IDEAL Study Steering Committee, including Walker, R. (2004). The Initiating Dialysis Early and Late (IDEAL) study: Study rationale and design. Peritoneal Dialysis International, 24(2), 176-181.
Manning, P. J., Sutherland, W. H., Walker, R. J., Williams, S. M., de Jong, S. A., Ryalls, A. R., & Berry, E. A. (2004). Effect of high-dose vitamin E on insulin resistance and associated parameters in overweight subjects. Diabetes Care, 27(9), 2166-2171.
Roger, S. D., McMahon, L. P., Clarkson, A., Disney, A., Harris, D., Hawley, C., … Lynn, K., … Walker, R., & Levin, A. (2004). Effects of early and late intervention with epoetin α on left ventricular mass among patients with chronic kidney disease (stage 3 or 4): Results of a randomized clinical trial. Journal of the American Society of Nephrology, 15, 148-156.
McMahon, L. P., Roger, S. D., Levin, A., for the Slimheart Investigators Group, including Walker, R. J. (2004). Development, prevention, and potential reversal of left ventricular hypertrophy in chronic kidney disease. Journal of the American Society of Nephrology, 15, 1640-1647.
Sutherland, W. H. F., de Jong, S. A., & Walker, R. J. (2004). Hypochlorous acid and low serum paraoxonase activity in haemodialysis patients: An in vitro study. Nephrology Dialysis Transplantation, 19(1), 75-82.
Bird, S. D., Legge, M., & Walker, R. J. (2004). Cultured peritoneal mesothelial cells exhibit apical primary cilia. Cell Biology International, 28(2), 79-92.
Bird, S. D., Legge, M., & Walker, R. J. (2004). Formaldehyde scavenging from peritoneal dialysis solutions using reduced aminothiol compounds. Nephrology, 9, 65-72.
Tong, D. C., & Walker, R. J. (2004). Antibiotic prophylaxis in dialysis patients undergoing invasive dental treatment. Nephrology, 9, 167-170.
Zoungas, S., Branley, P., Kerr, P. G., Ristevski, S., Muske, C., Demos, L., … Walker, R., … McGrath, B. P. (2004). Atherosclerosis and folic acid supplementation trial in chronic renal failure: Baseline results. Nephrology, 9, 130-141.
Walker, R. J., Sutherland, W. H., & De Jong, S. A. (2004). Effect of changing from a cellulose acetate to a polysulphone dialysis membrane on protein oxidation and inflammation markers. Clinical Nephrology, 61(3), 198-206. doi: 10.5414/CNP61198
Conference Contribution - Published proceedings: Abstract
Walker, R., Bedford, J., MacDonald, F., Weggery, S., & Leader, J. (2004). Lithium induced reducation of urinary aquaporin (AQP2) excretion and urinary concentrating ability in normal human volunteers. Proceedings of the 40th Annual Scientific Meeting of the Australian and New Zealand Society of Nephrology. (pp. A33). Adelaide, Australia: ANZSN. [Abstract]
Bradford, C., Walker, R., Gerrard, D., Thorburn, M., & Cotter, J. (2004). NSAIDS alter thermoregulation in exercise and recovery. New Zealand Sports Medicine & Science Conference. (pp. 52). Sports Medicine New Zealand. [Abstract]
2003
Journal - Research Article
Bird, S. D., & Walker, R. J. (2003). Effects of bicarbonate buffered dialysate on human peritoneal mesothelial cell intracellular calcium homeostasis. Nephrology, 8, 150-155.
Sutherland, W. H. F., Gieseg, S. P., Walker, R. J., de Jong, S. A., Firth, C. A., & Scott, N. (2003). Serum protein-bound 3,4-dihydroxyphenylalanine and related products of protein oxidation and chronic hemodialysis. Renal Failure, 25(6), 997-1009.
Bedford, J. J., Leader, J. P., & Walker, R. J. (2003). Aquaporin expression in normal human kidney and in renal disease. Journal of the American Society of Nephrology, 14, 2581-2587.
Delve, P., Lau, M., Yun, K., & Walker, R. (2003). Omeprazole-induced acute interstitial nephritis [Case report]. New Zealand Medical Journal, 116(1169). Retrieved from http://journal.nzma.org.nz/journal/116-1169/332/content.pdf
Al-Dameh, A. O., Bedford, J. J., Leader, J. P., & Walker, R. J. (2003). Urinary aquaporin-2 levels in healthy volunteers. Nephrology, 8, 139-141.
Conference Contribution - Published proceedings: Abstract
Walker, R. J., Bedford, J. J., & Leader, J. P. (2003). Lithium induced reducation of urinary aquaporin (AQP2) excretion and urinary concentrating ability in normal human volunteers. Journal of American Society of Nephrology. 14, (pp. 750A). [Abstract]
Leader, J. P., Bedford, J. J., & Walker, R. J. (2003). Sidedness of expression of AQP1 in mIMCD cells. Proceedings of the Experimental Biology Late-Breaking. [Abstract]
Bedford, J. J., Leader, J. P., & Walker, R. J. (2003). Glomerulart endothelium shows increased expression of AQP1 in renal disease. Proceedings of the Experimental Biology Late-Breaking. [Abstract]
2002
Journal - Research Article
Sutherland, W. H. F., de Jong, S. A., Walker, R. J., & Williams, S. M. (2002). Release of cholesterol from cell membranes to postprandial plasma from mildly hypercholesterolemic subjects: The effect of meals rich in olive and safflower oils. Metabolism, 51(10), 1306-1312.
Goodin, M. G., Walker, R. J., & Rosengren, R. J. (2002). Renal PGE2 production in the human and rat following phenactin, acetaminophen and p-aminophenol. Research Communications in Molecular Pathology & Pharmacology, 111, 153-166.
Lynn, K., & Walker, R. J. (2002). Darbepoetin alpha: A new erythropoietic drug for the treatment of renal anaemia. Nephrology, 7, S173-S180.
Yehia, M., McDonald, M. K., & Walker, R. J. (2002). The management and outcome of occluded haemodialysis access: A retrospective audit. New Zealand Medical Journal, 115(1166), U258. Retrieved from http://www.nzma.org.nz/journal/115-1166/258
Sutherland, W. H. F., De Jong, S. A., Walker, R. J., Williams, M. J. A., Skeaff, C. M., Duncan, A., & Harper, M. J. (2002). Effect of meals rich in heated olive and safflower oils on oxidation of postprandial serum in healthy men. Atherosclerosis, 160, 195-203.
Smiles, J., & Walker, R. J. (2002). A painful lower limb in a patient with a nephritic syndrome. Nephrology Dialysis Transplantation, 17, 295-296.
Sutherland, W. H. F., Walker, R. J., De Jong, S. A., & Williams, S. M. (2002). Release of cholesterol from cell membranes to postprandial plasma from mildly hypercholesterolemic subjects: the effect of meals rich in olive and safflower oils. Metabolism, 51(10), 1306-1312.
Conference Contribution - Published proceedings: Abstract
Walker, R. J., Bedford, J. J., & Leader, J. P. (2002). Aquaporin expression in renal disease. Journal of the American Society of Nephrology. 13, (pp. 472A). [Abstract]
2001
Journal - Research Article
Thomas, M. C., Russ, G. R., Mathew, T. H., Rao Mohan, M., Copper, J., & Walker, R. J. (2001). Four cases of CMV ureteritis: emergence of a new pattern of disease? Clinical Transplantation, 15, 354-358.
McAuley, K. A., Williams, S. M., Mann, J., Walker, R. J., Lewis-Barned, N. J., Temple, L., & Duncan, A. (2001). Diagnosing insulin resistance in the general population. Diabetes Care, 24(3), 460-464.
Williams, M. J. A., & Walker, R. J. (2001). When is an ANCA an anchor? Internal Medicine Journal, 31(5), 308-311.
Smiles, J., & Walker, R. J. (2001). Selective cyclo-oxygenase-2 inhibitor-induced oliguria: A postoperative complication. Internal Medicine Journal, 31, 497-498.
Walker, R. J., Lewis-Barned, N. J., Sutherland, W. H. F., Goulding, A., Edwards, E. A., de Jong, S. A., Gold, E. J., & Walker, H. (2001). The effects of sequential combined oral 17β-estradiol-Norethisterone acetate on insulin sensitivity and body composition in healthy postmenopausal women: A randomized single blind placebo-controlled study. Menopause, 8, 27-32.
Walker, R. J., Dixon, S., Ruger, B. M., Davis, P. F., Hildebrant, F., Kremer, M., Eccles, M. R., McNoe, L. A., … Reid, J. J. (2001). Familial fibronectin glomerulopathy: Analysis of chromosome 1q32 and uteroglobulin gene loci in a large New Zealand family. Nephrology, 6, 191-197.
Williams, M. J. A., Sutherland, W. H. F., McCormick, M., Yeoman, D., de Jong, S. A., & Walker, R. J. (2001). Normal endothelial function after meals rich in olive or safflower oil previously used for deep frying. Nutrition, Metabolism & Cardiovascular Diseases, 11, 147-152.
Williams, M. J. A., Sutherland, W. H. F., McCormick, M., de Jong, S. A., McDonald, J. R., & Walker, R. J. (2001). Vitamin C improves endothelial dysfunction in renal allograft recipients. Nephrology Dialysis Transplantation, 16, 1251-1255.
2000
Journal - Research Article
Lewis-Barned, N. J., Sutherland, W. H. F., Walker, R. J., de Jong, S. A., Walker, H. L., Edwards, E. A., Markham, V. H., & Goulding, A. (2000). Plasma cholesterol ester fatty acid composition, insulin sensitivity, the menopause and hormone replacement therapy. Journal of Endocrinology, 165, 649-655.
Goodin, M. G., Walker, R. J., & Rosengren, R. J. (2000). The effect of low doses of paracetamol on prostaglandin E2 production in the human and rat kidney. Australasian Journal of Ecotoxicology, 6(2), 85-88.
Conference Contribution - Published proceedings: Abstract
Goodin, M. G., Walker, R. J., & Rosengren, R. J. (2000). Comparison between PGE2 production in rat and human renal microsomes following exposure to phenacetin, paracetamol and ρ-aminophenol. The Otago Medical School Research Society. 78, (pp. 7). [Abstract]
Goodin, M. G., Walker, R. J., & Rosengren, R. J. (2000). The effect of low concentrations of acetaminophen and ρ -aminophenol on PGE2 production in the human and rat kidney. Toxicologist. 54, (pp. 402). London, UK: Oxford University Press. [Abstract]
Film/Video/CD Rom
Walker, R. J., & Wilkins, G. T. (2000). Cardiovascular risk factor assessment and management. Dunedin: Vidmark Productions. Retrieved from CD-ROM
1999
Authored Book - Research
Russell, D. G., Parnell, W. R., Wilson, N. C., Faed, J. M., Ferguson, E. L., Horwath, C. C., Herbison, G. P., Nye, E. R., Reid, P., Walker, R. J., Wilson, B. D., & Tukuitonga, C. (1999). NZ Food: NZ People. Key results of the 1997 National Nutrition Survey (LINZ® Activity & Health Research Unit). Wellington: Ministry of Health, 268p.
Journal - Research Article
Lewis-Barned, N. J., Sutherland, W. H. F., Walker, R. J., Walker, H. L., de Jong, S. A., Edwards, E. A., & Markham, V. H. (1999). Plasma cholesteryl esterification and transfer, the menopause and hormone replacement therapy in women. Journal of Clinical Endocrinology & Metabolism, 84, 3534-3538.
Sutherland, W. H. F., Walker, R. J., de Jong, S. A., van Rij, A. M., Phillips, L. V., & Walker, H. (1999). Reduced postprandial serum paraoxonase activity after a meal rich in used cooking fat. Arteriosclerosis, Thrombosis, & Vascular Biology, 19, 1340-1347.
Thomas, M. C., Walker, R. J., & Packer, S. G. (1999). Running repairs: renal artery dissection following extreme exertion. Nephrology Dialysis Transplantation, 14, 1258-1259.
Thomas, M. C., Walker, R. J., & Wright, R. A. (1999). HaNDL syndrome after "benign" OKT3-induced meningitis. Transplantation, 67(10), 1384-1385.
Williams, M. J., Sutherland, W. H. F., McCormick, M. P., de Jong, S. A., Walker, R. J., & Wilkins, G. T. (1999). Impaired endothelial function after a meal rich in used cooking fat. JACC, 33, 1050-1055.
Thomas, M. C., Walker, R. J., & Fisher, M. (1999). The simultaneous presentation of Goodpasture's disease and insulin dependent diabetes mellitus. Nephrology Dialysis Transplantation, 14, 1997-1998.
Walker, R. J., & International Collaborative Gp. (1999). Spectrum of disease in familial focal and segmental glomerulosclerosis. Kidney International, 165, 649-655.
Walker, R. J., & International Collaborative Gp. (1999). Clinical and genetic heterogenity in familial focal segmental glomerulosclerosis. Kidney International, 55, 1241-1246.
Thomas, M. C., Walker, R. J., & Hung, N. (1999). Tuberculosis: Still the great pretender. Hospital Medicine, 60, 214-215.
Walker, R. J. (1999). Early start dialysis in diabetic nephropathy. Peritoneal Dialysis International, 19, S221-S223.
Sutherland, W. H. F., Walker, R. J., de Jong, S. A., & Upritchard, J. E. (1999). Supplementation with tomato juice increases plasma lycopene but does not alter susceptibility to oxidation of low density lipoproteins from renal transplant recipients. Clinical Nephrology, 52, 30-36.
Journal - Professional & Other Non-Research Articles
Walker, R. J., & Manning, P. J. (1999). Diabetic nephropathy: Assessment and management. New Ethicals, 2(7), 49-55.
Conference Contribution - Published proceedings: Abstract
Goodin, M. G., Walker, R. J., & Rosengren, R. J. (1999). The effect of paracetamol, phenacetin and ρ-aminophenol on renal prostaglandin E2 production in the rat. Proceedings of ASCEPT. 6, (pp. 41). Australian Society of Clinical and Experimental Pharmacologists and Toxicologists. [Abstract]
Film/Video/CD Rom
Walker, R. J., & Wilkins, G. T. (1999). Cardiovascular disease management. Dunedin: Vidmark Productions. Retrieved from CD-ROM
1998
Journal - Research Article
Bird, S. D., Hasan, Q., Davis, P. F., & Walker, R. J. (1998). Platelet-derived growth factor-BB induced calcium transients in cultured human peritoneal mesothelial cells. ASAIO Journal, 44, 835-840.
Thomas, M. C., Bowie, D. R., & Walker, R. J. (1998). Acute barium toxicity following ceramic ingestion. Postgraduate Medical Journal, 545-546.
Bird, S. D., Hasan, Q., Davis, P. F., & Walker, R. J. (1998). Expression of platelet-derived growth factor and receptor mRNA in cultured human peritoneal mesothelial cells. ASAIO Journal, 44, 835-840.
Bird, S. D. M., & Walker, R. J. (1998). Mast cell histamine-induced calcium transients in cultured human peritoneal mesothelial cells. Peritoneal Dialysis International, 18, 626-636.
Thomas, M. C., Walker, R. J., & Yun, K. (1998). A norepinepherine secreting renal cell carcinoma: a case report. Nephrology Dialysis Transplantation, 13, 1811-1814.
Pilmore, H., Walker, R. J., McMillan, B. S., Paranjpe, D. V., & Berkeley, B. B. (1998). Acute bone pain following renal transplantation: differentiation between benign bone edema and avascular necrosis. American Journal of Nephrology, 18, 57-60.
Slaven, G. M., Fawcett, J. P., Walker, R. J., Hodgson, B. F., & Zacharias, M. (1998). Tenoxicam does not alter renal function during anaesthesia in normal individuals. Australian & New Zealand Journal of Medicine, 28(6), 772-776. doi: 10.1111/j.1445-5994.1998.tb01552.x
Jones, G. T., van Rij, A. M., Packer, S. G., Walker, R. J., & Stehbens, W. E. (1998). Venous endothelial changes in therapeutic arteriovenous fistulae. Atherosclerosis, 137, 149-156.
Legge, M., Lash, G. E. E., Bird, S. D., & Walker, R. J. (1998). Formaldehyde in heat sterilised peritoneal dialysis solutions: scavenging system for its removal. Peritoneal Dialysis International, 18, 228-231.
Journal - Research Other
Thomas, M. C., Lyons, B. D., & Walker, R. J. (1998). John Thomas sign: Common distraction or useful pointer? Medical Journal of Australia, 169(11-12), 670. doi: 10.5694/j.1326-5377.1998.tb123461.x
1997
Chapter in Book - Research
Walker, R. J. (1997). Nephrology and urology. In The New Zealand Knowledge Base: a Report. (pp. 54-56). Wellington: Ministry of Research, Science and Technology.
Journal - Research Article
Zhang, H., Coville, P., Walker, R. J., Miners, J. O., Birkett, D. J., & Wanwimolruk, S. (1997). Evidence for involvement of human CYP3A in the 3-hydroxylation of quinine. British Journal of Clinical Pharmacology, 43(3), 245-252.
Robson, R., Collins, J., Johnson, R., Kitching, R., Searle, M., Walker, R., … Whalley, G., … MacMahon, S. (1997). Effects of simvastatin and enalapril on serum lipoprotein concentrations and left ventricular mass in patients on dialysis. Journal of Nephrology, 10(1), 33-40.
Goulding, A., Gold, E. J., Walker, R. J., & Lewis-Barned, N. J. (1997). Women with past history of bone fracture have low spinal bone density before menopause. New Zealand Medical Journal, 110(1046), 232-233.
Walker, R. J. (1997). General management of end stage renal disease. British Medical Journal, 315(7120), 1429-1432.
Pilmore, H., Nagara, M. P., & Walker, R. J. (1997). Neurofibromatosis and renovascular hypertension presenting in early pregnancy. Nephrology Dialysis Transplantation, 12(1), 187-189.
McAuley, K. A., Devereux, F., & Walker, R. J. (1997). Calciphylaxis in two non-compliant patients with end-stage renal failure. Nephrology Dialysis Transplantation, 12(5), 1061-1063.
Walker, R. J., Sutherland, W. H. F., Walker, H. L., MacMahon, S., & Robson, R. A. (1997). Effect of treatment with simvastatin on serum cholesteryl ester transfer in patients on dialysis. Nephrology Dialysis Transplantation, 12(1), 87-92. doi: 10.1093/ndt/12.1.87
Tillmann, H. C., Walker, R. J., Lewis-Barned, N. J., Edwards, E. A., & Robertson, M. C. (1997). A long-term comparison between enalapril and captopril on insulin sensitivity in normotensive non-insulin dependent diabetic volunteers. Journal of Clinical Pharmacy & Therapeutics, 22(4), 273-278.
Journal - Professional & Other Non-Research Articles
Thomas, M., & Walker, R. J. (1997). Renovascular hypertension. Primary Health Care New Zealand, (May), 24-30.
Conference Contribution - Published proceedings: Abstract
Bedford, J. J., Leader, J. P., & Walker, R. J. (1997). Glomerular endothelium shows increased expression of AQP1 in renal disease. Federation of American Soceities for Experimental Biology Journal. (pp. 17). [Abstract]
Bird, S. D., Hasan, Q., Davis, P. F., & Walker, R. J. (1997). Alternations in cultured human peritoneal mesothelial cell (HPMC) function in response to histamine and PDGF are calcium mediated. VIX International Congress of Nephrology. Sydney. [Abstract]
Walker, R. J., Dixon, S., Ruger, B. M., Davis, P. F., Eccles, M. R., & McNoe, L. A. (1997). Familial fibronectin nephropathy. 34th Australasian and New Zealand Society of Nephrology Conference. Auckland. [Abstract]
1996
Journal - Research Article
Bird, S. D., Legge, M., & Walker, R. J. (1996). L-Cysteine improves growth of human peritoneal mesothelial cells in vitro. Peritoneal Dialysis International, 16(6), 599-606.
Fawcett, J. P., Schiller, B., Jiang, R., Walker, R. J., & Moran, J. (1996). Supplementation with L-oxothiazolidine-4-carboxylic acid, a cysteine precurser does not protect against lipid peroxidation in puromycin aminonucleoside-induced nephropathy. Experimental Nephrology, 4, 248-252.
Fawcett, J. P., Farquhar, S. J., Walker, R. J., Thou, T., Lowe, G., & Goulding, A. (1996). The effect of oral vanadyl sulfate on body composition and performance in weight-training athletes. International Journal of Sports Nutrition, 6(4), 382-390.
Bird, S. D., & Walker, R. J. (1996). Altered cellular biosynthesis in human peritoneal mesothelial cells exposed to dialysis solutions. Research Communications in Molecular Pathology & Pharmacology, 91, 319-328.
Rouse, J., Walker, R. J., & Packer, S. G. (1996). Inadvertent intravesical insertion of a Tenckhoff catheter. Peritoneal Dialysis International, 16, 218-219.
1995
Journal - Research Article
Walker, R. J., Lewis-Barned, N. J., Edwards, E. A., & Robertson, M. C. (1995). The effects of increasing doses of enalapril on insulin sensitivity in normotensive non-insulin dependent diabetic subjects. Australian & New Zealand Journal of Medicine, 25, 698-702.
Wanwimolruk, S., Wong, S. M., Zhang, H., Coville, P., & Walker, R. J. (1995). Metabolism of quinine in man: identification fo a major metabolite, and effects of smoking and rifampicin pretreatment. Journal of Pharmacy & Pharmacology, 47, 957-963.
Oliver, S. E., Walker, R. J., & Woods, D. J. M. (1995). Fluconazole infused via a nephrostomy tube: a novel and effective route of delivery. Journal of Clinical Pharmacy & Therapeutics, 20, 317-318.
1994
Journal - Research Article
Walker, R. J., Fawcett, J. P., Flannery, E. M., & Gerrard, D. F. (1994). Indomethacin potentiates the exercise-induced reduction of renal haemodynamics in athletes. Medicine & Science in Sports & Exercise, 26(11), 1302-1306.