Academic Head, Department of Medicine
MB ChB(Otago) PhD(Otago) FRACP
Current Roles
- Academic Head, Department of Medicine
- Consultant Gastroenterologist Christchurch Hospital
- Medical Director, New Zealand Nutrition Foundation
- Medical Advisor, Crohn’s and Colitis New Zealand
Research Interests
- Luminal gastroenterology
- Inflammatory bowel disease
- Coeliac disease
- Irritable bowel syndrome
- Colorectal cancer
Publications
Burisch, J., Zhao, M., Odes, S., De Cruz, P., Vermeire, S., Bernstein, C. N., … Gearry, R. B., … Munkholm, P. (2023). The cost of inflammatory bowel disease in high-income settings: A Lancet Gastroenterology & Hepatology commission. Lancet Gastroenterology & Hepatology. Advance online publication. doi: 10.1016/s2468-1253(23)00003-1
James, S. C., Fraser, K., Cooney, J., Günther, C. S., Young, W., Gearry, R. B., … Keenan, J. I., … Roy, N. C. (2023). Concentrations of plasma amino acids and neurotransmitters in participants with functional gut disorders and healthy controls. Metabolites, 13, 313. doi: 10.3390/metabo13020313
MacIntosh, A., Heenan, P. E., Wright-McNaughton, M., Frampton, C., Skidmore, P., Wall, C. L., … Roy, N. C., & Gearry, R. B. (2023). The relationship between fermentable carbohydrates and post-prandial bowel symptoms in patients with functional bowel disorders. Frontiers in Nutrition, 10, 1060928. doi: 10.3389/fnut.2023.1060928
Wall, C., Glyn, T., Rowbotham, D., Haines, M., Bissett, I., Eglinton, T., & Gearry, R. (2023). Randomised feasibility study of preoperative medical nutrition therapy in adults undergoing surgery for Crohn's disease. Journal of Crohn's & Colitis, 17(Suppl. 1), (pp. i899). doi: 10.1093/ecco-jcc/jjac190.0899
Gearry, R., Fukudo, S., Barbara, G., Kuhn-Sherlock, B., Ansell, J., Blatchford, P., … Drummond, L. (2023). Consumption of 2 green kiwifruits daily improves constipation and abdominal comfort: Results of an international multicenter randomized controlled trial. American Journal of Gastroenterology. Advance online publication. doi: 10.14309/ajg.0000000000002124
Drummond, L., & Gearry, R. B. (2013). Kiwifruit modulation of gastrointestinal motility. In M. Boland & P. J. Moughan (Eds.), Advances in food and nutrition research (Vol. 68): Nutritional benefits of kiwifruit. (pp. 219-232). Waltham, MA: Academic Press. doi: 10.1016/B978-0-12-394294-4.00012-2
Chapter in Book - Research
Burisch, J., Zhao, M., Odes, S., De Cruz, P., Vermeire, S., Bernstein, C. N., … Gearry, R. B., … Munkholm, P. (2023). The cost of inflammatory bowel disease in high-income settings: A Lancet Gastroenterology & Hepatology commission. Lancet Gastroenterology & Hepatology. Advance online publication. doi: 10.1016/s2468-1253(23)00003-1
Journal - Research Article
Gearry, R., Fukudo, S., Barbara, G., Kuhn-Sherlock, B., Ansell, J., Blatchford, P., … Drummond, L. (2023). Consumption of 2 green kiwifruits daily improves constipation and abdominal comfort: Results of an international multicenter randomized controlled trial. American Journal of Gastroenterology. Advance online publication. doi: 10.14309/ajg.0000000000002124
Journal - Research Article
James, S. C., Fraser, K., Cooney, J., Günther, C. S., Young, W., Gearry, R. B., … Keenan, J. I., … Roy, N. C. (2023). Concentrations of plasma amino acids and neurotransmitters in participants with functional gut disorders and healthy controls. Metabolites, 13, 313. doi: 10.3390/metabo13020313
Journal - Research Article
MacIntosh, A., Heenan, P. E., Wright-McNaughton, M., Frampton, C., Skidmore, P., Wall, C. L., … Roy, N. C., & Gearry, R. B. (2023). The relationship between fermentable carbohydrates and post-prandial bowel symptoms in patients with functional bowel disorders. Frontiers in Nutrition, 10, 1060928. doi: 10.3389/fnut.2023.1060928
Journal - Research Article
Simon, M. H., Heenan, P. E., Frampton, C., Bayer, S., Keenan, J. I., de Boer, N. K., Roy, N. C., … Gearry, R. B. (2023). Economic living standard and abdominal pain mediate the association between functional gastrointestinal disorders and depression or anxiety. Neurogastroenterology & Motility, 35, e14465. doi: 10.1111/nmo.14465
Journal - Research Article
Bayer, S. B., Heenan, P., Frampton, C., Wall, C. L., Drummond, L. N., Roy, N. C., & Gearry, R. B. (2022). Two gold kiwifruit daily for effective treatment of constipation in adults: A randomized clinical trial. Nutrients, 14, 4146. doi: 10.3390/nu14194146
Journal - Research Article
Brown, S. C., Whelan, K., Frampton, C., Wall, C. L., Gearry, R. B., & Day, A. S. (2022). Food-related quality of life in children and adolescents with Crohn's disease. Inflammatory Bowel Diseases. Advance online publication. doi: 10.1093/ibd/izac010
Journal - Research Article
Brown, S., Wall, C. L., Frampton, C., Gearry, R. B., & Day, A. S. (2022). Dietary nutrient intake and blood micronutrient status of children with Crohn's disease compared with their shared-home environment, healthy siblings. Nutrients, 14, 3425. doi: 10.3390/nu14163425
Journal - Research Article
Buie, M. J., Quan, J., Windsor, J. W., Coward, S., Hansen, T. M., King, J. A., … Gearry, R. B., … on behalf of the GIVES-21 Consortia. (2022). Global hospitalization trends for Crohn's disease and ulcerative colitis in the 21st century: A systematic review with temporal analyses. Clinical Gastroenterology & Hepatology. Advance online publication. doi: 10.1016/j.cgh.2022.06.030
Journal - Research Article
Evans, S., Olive, L., Dober, M., Knowles, S., Fuller-Tyszkiewicz, M., O, E., … Gearry, R., McCombie, A., … Mikocka-Walus, A. (2022). Acceptance commitment therapy (ACT) for psychological distress associated with inflammatory bowel disease (IBD): Protocol for a feasibility trial of the ACTforIBD programme. BMJ Open, 12, e060272. doi: 10.1136/bmjopen-2021-060272
Journal - Research Article
Falling, C. L., Stebbings, S., David Baxter, G., Siegel, C. A., Gearry, R. B., & Mani, R. (2022). Somatosensory assessments in patients with inflammatory bowel disease: A cross-sectional study examining pain processing pathways and the role of multiple patient factors. European Journal of Gastroenterology & Hepatology, 34(5), 503-511. doi: 10.1097/meg.0000000000002354
Journal - Research Article
Kaplan, G. G., Underwood, F. E., Coward, S., Agrawal, M., Ungaro, R. C., Brenner, E. J., Gearry, R. B., … Colombel, J.-F. (2022). The multiple waves of COVID-19 in patients with inflammatory bowel disease: A temporal trend analysis. Inflammatory Bowel Diseases, 28, 1687-1695. doi: 10.1093/ibd/izab339
Journal - Research Article
Liu, Z., Julsgaard, M., Zhu, X., Martin, J., Barclay, M., Cranswick, N., … Gearry, R., … the CARINA Study Group. (2022). Timing of live attenuated vaccination in infants exposed to infliximab or adalimumab in utero: A prospective cohort study in 107 children. Journal of Crohn's & Colitis. Advance online publication. doi: 10.1093/ecco-jcc/jjac093
Journal - Research Article
Lo, B., Barreiro-de Acosta, M., Bernstein, C. N., Burisch, J., Ferreira, N., Gearry, R. B., … Knowles, S. R. (2022). Fear of COVID-19 among patients with inflammatory bowel disease as compared to patients with other gastrointestinal conditions. Turkish Journal of Gastroenterology. Advance online publication. doi: 10.5152/tjg.2022.21774
Journal - Research Article
Ma, C., Hanzel, J., Panaccione, R., Sandborn, W. J., D'Haens, G. R., Ahuja, V., … Gearry, R. B., … Jairath, V. (2022). CORE-IBD: A multidisciplinary international consensus initiative to develop a core outcome set for randomized controlled trials in inflammatory bowel disease. Gastroenterology. doi: 10.1053/j.gastro.2022.06.068
Journal - Research Article
Merry, T. L., Metcalf, P., Scragg, R., Gearry, R., Foster, M., & Krebs, J. D. (2022). Metabolic syndrome severity score (MetSSS) associates with metabolic health status in multi-ethnic Aotearoa New Zealand cohorts. Diabetes Research & Clinical Practice, 192, 110088. doi: 10.1016/j.diabres.2022.110088
Journal - Research Article
Mikocka-Walus, A., Skvarc, D., Barreiro de Acosta, M., Bennebroek Evertsz, F., Bernstein, C. N., Burisch, J., … Gearry, R. B., … Knowles, S. R. (2022). Exploring the relationship between self-isolation and distress among people with gastrointestinal disorders during the COVID-19 pandemic. Journal of Clinical Psychology in Medical Settings, 29, 654-665. doi: 10.1007/s10880-021-09818-9
Journal - Research Article
Mortlock, S., Lord, A., Montgomery, G., Zakrzewski, M., Simms, L. A., Krishnaprasad, K., … Gearry, R. B., & Radford-Smith, G. L. (2022). An extremes of phenotype approach confirms significant genetic heterogeneity in patients with ulcerative colitis. Journal of Crohn's & Colitis. Advance online publication. doi: 10.1093/ecco-jcc/jjac121
Journal - Research Article
Mules, T. C., Swaminathan, A., Hirschfeld, E., Borichevsky, G. M., Frampton, C. M., Day, A. S., & Gearry, R. B. (2022). The impact of disease activity on SD and ED in patients with inflammatory bowel disease. Inflammatory Bowel Diseases. Advance online publication. doi: 10.1093/ibd/izac204
Journal - Research Article
Mules, T. C., Swaminathan, A., Hirschfeld, E., Borichevsky, G., Frampton, C., Day, A. S., & Gearry, R. B. (2022). The impact of disease activity on psychological symptoms and quality of life in patients with inflammatory bowel disease-results from the Stress, Anxiety and Depression with Disease Activity (SADD) Study. Alimentary Pharmacology & Therapeutics, 55, 201-211. doi: 10.1111/apt.16616
Journal - Research Article
O'Brien, L., Wall, C., Wilkinson, T. J., & Gearry, R. B. (2022). Chronic diarrhoea in older adults and the role of dietary interventions. Nutrition & Healthy Aging, 7, 39-50. doi: 10.3233/NHA-220152
Journal - Research Article
Swaminathan, A., Borichevsky, G. M., Edwards, T. S., Hirschfeld, E., Mules, T. C., Frampton, C. M., Hampton, M. B., Kettle, A. J., & Gearry, R. B. (2022). Faecal myeloperoxidase as a biomarker of endoscopic activity in inflammatory bowel disease. Journal of Crohn's & Colitis. Advance online publication. doi: 10.1093/ecco-jcc/jjac098
Journal - Research Article
Swaminathan, A., Fan, D., Borichevsky, G. M., Mules, T. C., Hirschfeld, E., Frampton, C. M., Day, A. S., … Gearry, R. B. (2022). The disease severity index for inflammatory bowel disease is associated with psychological symptoms, quality of life and predicts a more complicated disease course. Alimentary Pharmacology & Therapeutics. Advance online publication. doi: 10.1111/apt.17058
Journal - Research Article
Thwaites, P. A., Yao, C. K., Maggo, J., John, J., Chrimes, A. F., Burgell, R. E., … Gearry, R. B., … Gibson, P. R. (2022). Comparison of gastrointestinal landmarks using the gas-sensing capsule and wireless motility capsule. Alimentary Pharmacology & Therapeutics. Advance online publication. doi: 10.1111/apt.17216
Journal - Research Article
Volkers, A. G., Appleton, L., Gearry, R. B., Frampton, C. M., De Voogd, F. A. E., Peters van Ton, A. M., … Day, A. S. (2022). Fecal calprotectin, chitinase 3-like-1, S100A12 and osteoprotegerin as markers of disease activity in children with Crohn's disease. Gastrointestinal Disorders, 4(3), 180-189. doi: 10.3390/gidisord4030017
Journal - Research Article
Bernstein, C. N., Ng, S. C., Banerjee, R., Steinwurz, F., Shen, B., Carbonnel, F., … Gearry, R., the IBD-Emerging Nations Consortium and the WGO IBD Task Force on COVID-19. (2021). Worldwide management of inflammatory bowel disease during the COVID-19 pandemic: An international survey. Inflammatory Bowel Diseases, 27(6), 836-847. doi: 10.1093/ibd/izaa202
Journal - Research Article
Falling, C., Stebbings, S., Baxter, G. D., Gearry, R. B., & Mani, R. (2021). Criterion validity and discriminatory ability of the central sensitization inventory short form in individuals with inflammatory bowel disease. Scandinavian Journal of Pain, 21(3), 577-585. doi: 10.1515/sjpain-2021-0021
Journal - Research Article
Falling, C., Stebbings, S., Baxter, G. D., Siegel, C. A., Gearry, R. B., Nijs, J., & Mani, R. (2021). Symptoms of central sensitization in patients with inflammatory bowel diseases: A case-control study examining the role of musculoskeletal pain and psychological factors. Scandinavian Journal of Pain, 21(2). doi: 10.1515/sjpain-2020-0109
Journal - Research Article
Gatenby, G., Glyn, T., Pearson, J., Gearry, R., & Eglinton, T. (2021). The long-term incidence of dysplasia and colorectal cancer in a Crohn’s colitis population-based cohort. Colorectal Disease, 23, 2399-2406. doi: 10.1111/codi.15756
Journal - Research Article
Gearry, R. B., McCombie, A. M., Vatn, M., Rubin, D. T., Steinwurz, F., Loftus, E. F., … the World Gastroenterology Organization. (2021). What are the most challenging aspects of inflammatory bowel disease? An international survey of gastroenterologists comparing developed and developing countries. Inflammatory Intestinal Diseases, 6(2), 78-86. doi: 10.1159/000512310
Journal - Research Article
Hayes, B., Apputhurai, P., Mikocka‑Walus, A., Barreiro‑de Acosta, M., Bernstein, C. N., Burgell, R., … Gearry, R., … Knowles, S. R. (2021). Extending the common sense model to explore the impact of the fear of COVID-19 on quality of life in an international inflammatory bowel disease cohort. Journal of Clinical Psychology in Medical Settings. Advance online publication. doi: 10.1007/s10880-021-09823-y
Journal - Research Article
James, S. C., Fraser, K., Young, W., Heenan, P. E., Gearry, R. B., Keenan, J. I., … Roy, N. C. (2021). Concentrations of fecal bile acids in participants with functional gut disorders and healthy controls. Metabolites, 11, 612.
Journal - Research Article
Mikocka-Walus, A., Skvarc, D., van Tilburg, M. A. L., Barreiro-de Acosta, M., Bennebroek Evertsz, F., Bernstein, C. N., … Gearry, R. B., … Knowles, S. (2021). COVID-19-related personal product shortages are associated with psychological distress in people living with gastrointestinal disorders: A cross-sectional survey. Neurogastroenterology & Motility, e14198. doi: 10.1111/nmo.14198
Journal - Research Article
O'Brien, L., Wall, C. L., Wilkinson, T. J., & Gearry, R. B. (2021). What are the pearls and pitfalls of the dietary management for chronic diarrhoea? Nutrients, 13, 1393. doi: 10.3390/nu13051393
Journal - Research Article
Ungaro, R. C., Brenner, E. J., Gearry, R. B., Kaplan, G. G., Kissous-Hunt, M., Lewis, J. D., … Kappelman, M. D. (2021). Effect of IBD medications on COVID-19 outcomes: Results from an international registry. Gut, 70, 725-732. doi: 10.1136/gutjnl-2020-322539
Journal - Research Article
Vernon-Roberts, A., Frampton, C., Gearry, R. B., & Day, A. S. (2021). Development and validation of a self-management skills assessment tool for children with inflammatory bowel disease: The IBD-Skills Tasks and Abilities Record (IBD-STAR). Journal of Pediatric Gastroenterology & Nutrition, 72(1), 67-73. doi: 10.1097/MPG.0000000000002905
Journal - Research Article
Vernon-Roberts, A., Lopez, R. N., Lewindon, P., Lemberg, D. A., Bowcock, N. L., Alex, G., … Gearry, R. B., & Day, A. S. (2021). Assessment of disease-related knowledge among children with inflammatory bowel disease and their family using IBD-KID2: Evaluating tool generalizability. JPGN Reports, 2(3), e093. doi: 10.1097/PG9.0000000000000093
Journal - Research Article
Allez, M., Fleshner, P., Gearry, R., Lakatos, P. L., Rubin, D. T., on behalf of the International Organization for the Study of Inflammatory Bowel Disease. (2020). Care of the patient with IBD requiring hospitalization during the COVID-19 pandemic. Journal of Crohn's & Colitis, 14(Suppl. 3), S774-S779. doi: 10.1093/ecco-jcc/jjaa150
Journal - Research Article
Appleton, L., Watt, E., Jagger, F., Hansen, R., Gearry, R. B., & Day, A. S. (2020). Associations between the presence of granulomata and disease phenotype and outcomes in children diagnosed with Crohn’s disease. Gastrointestinal Disorders, 2(2), 164-170. doi: 10.3390/gidisord2020017
Journal - Research Article
Brenner, E. J., Ungaro, R. C., Gearry, R. B., Kaplan, G. G., Kissous-Hunt, M., Lewis, J. D., … Kappelman, M. D. (2020). Corticosteroids, but not TNF antagonists, are associated with adverse COVID-19 outcomes in patients with inflammatory bowel diseases: Results from an international registry. Gastroenterology, 159, 481-491. doi: 10.1053/j.gastro.2020.05.032
Journal - Research Article
Brown, S. C., Whelan, K., Gearry, R. B., & Day, A. S. (2020). Low FODMAP diet in children and adolescents with functional bowel disorder: A clinical case note review. JGH Open, 4, 153-159. doi: 10.1002/jgh3.12231
Journal - Research Article
Chan, D., Skidmore, P., O'Brien, L., Watson, S., & Gearry, R. (2020). A feasibility study investigating the impact of a dietitian-led low in fermentable oligosaccharide, disaccharide, monosaccharide and polyols diet group education programme with irritable bowel syndrome. New Zealand Medical Journal, 133(1522), 42-51. Retrieved from https://www.nzma.org.nz/journal
Journal - Research Article
Croese, J., Miller, G. C., Marquart, L., Llewellyn, S., Gupta, R., Becker, L., … Gearry, R. B., … Giacomin, P. R. (2020). Randomized, placebo controlled trial of experimental hookworm infection for improving gluten tolerance in celiac disase. Clinical & Translational Gastroenterology, 11, e00274. doi: 10.14309/ctg.0000000000000274
Journal - Research Article
Croese, J., Miller, G. C., Marquart, L., Llewellyn, S., Gupta, R., Becker, L., … Gearry, R. B., … Giacomin, P. R. (2020). Randomized, placebo controlled trial of experimental hookworm infection for improving gluten tolerance in celiac disease. Clinical & Translational Gastroenterology, 11, e00274. doi: 10.14309/ctg.0000000000000274
Journal - Research Article
Daveson, A. J. M., Popp, A., Taavela, J., Goldstein, K. E., Isola, J., Truitt, K. E., … on behalf of the RESET CeD Study Group, including Gearry, R. (2020). Baseline quantitative histology in therapeutics trials reveals villus atrophy in most patients with coeliac disease who appear well controlled on gluten‐free diet. GastroHep, 2, 22-30. doi: 10.1002/ygh2.380
Journal - Research Article
Falling, C. L., Stebbings, S., Baxter, G. D., Gearry, R. B., & Mani, R. (2020). Central sensitization inventory mediates the relationship between inflammatory bowel disease activity and worse musculoskeletal pain experiences. Pain Practice, 20(1), 24-33. doi: 10.1111/papr.12821
Journal - Research Article
Glyn Mullaney, T., McCombie, A., Wakeman, C., Eglinton, T., & Gearry, R. (2020). Surveillance for dysplasia in patients with inflammatory bowel disease: An updated national survey of colonoscopic practice in New Zealand. New Zealand Medical Journal, 133(1517), 56-65. Retrieved from https://www.nzma.org.nz/journal
Journal - Research Article
Hackett, R., Gearry, R., Ho, C., McCombie, A., Mackay, M., Murdoch, K., … Inns, S. (2020). New Zealand national audit of outpatient inflammatory bowel disease standards of care. Clinical & Experimental Gastroenterology, 13, 285-292. doi: 10.2147/CEG.S259790
Journal - Research Article
Heenan, P., Creemers, R. H., Sharma, S., Keenan, J., Bayer, S., Young, W., … Skidmore, P. M., … Roy, N., Gearry, R. B., & COMFORT Cohort Collaborators. (2020). Cohort profile: The Christchurch IBS cOhort to investigate Mechanisms FOr gut Relief and improved Transit (COMFORT). Inflammatory Intestinal Diseases, 5(3), 132-143. doi: 10.1159/000508160
Journal - Research Article