Accessibility Skip to Global Navigation Skip to Local Navigation Skip to Content Skip to Search Skip to Site Map Menu

BSc (Hons)(Cant) MapoplSc(Linc) PhD(Otago)

Department of Medicine
University of Otago, Christchurch
P.O. Box 4345
Christchurch 8140
New Zealand

Email lynley.lewis@otago.ac.nz

Current Roles

  • Method development and validation of analytical methods in the CCERG Biochemistry Laboratory
  • Maintenance of quality standards and documentation to ISO15189 specifications

Research Interests

  • Actions and interactions of vasoactive peptides in vascular cells
  • Development of immunoassays for measurement of vasoactive peptides
  • Metabolism of vasoactive peptides in vivo and in vitro

^ Top of page

Publications

Lewis, L. K., Raudsepp, S. D., Prickett, T. C. R., Yandle, T. G., Doughty, R. N., Frampton, C. M., Pemberton, C. J., & Richards, A. M. (2019). ProBNP that is not glycosylated at threonine 71 is decreased with obesity in patients with heart failure. Clinical Chemistry. Advance online publication. doi: 10.1373/clinchem.2019.302547

Lewis, L. K., Raudsepp, S. D., Yandle, T. G., Prickett, T. C., & Richards, A. M. (2017). Development of a BNP1-32 immunoassay that does not cross-react with proBNP. Clinical Chemistry, 63(6), 1110-1117. doi: 10.1373/clinchem.2016.269712

Lewis, L. K., Raudsepp, S. D., Yandle, T. G., & Richards, A. M. (2016, August). Development of a specific immunoassay to measure BNP1-32 in plasma without the confounding influences of precursor peptides and peptide metabolites: Could this improve heart failure diagnosis? Poster session presented at the Medical Sciences Congress (MedSci), Nelson, New Zealand.

Justice, T. D., Hammer, G. L., Davey, R. J., Paramalingam, N., Guelfi, K. J., Lewis, L., … Fournier, P. A. (2015). Effect of antecedent moderate-intensity exercise on the glycemia-increasing effect of a 30-sec maximal sprint: A sex comparison. Physiological Reports, 3(5), 12386. doi: 10.14814/phy2.12386

Lewis, L. K., Yandle, T. G., Hilton, P. J., Jensen, B. P., Begg, E. J., & Nicholls, M. G. (2014). Endogenous ouabain is not ouabain. Hypertension, 64, 680-683. doi: 10.1161/hypertensionaha.114.03919

Chapter in Book - Research

Nicholls, M. G., Pidgeon, G. B., Lewis, L. K., & Richards, A. M. (1996). Ouabain, adrenal glands and hypertension. In G. P. Vinson & D. C. Anderson (Eds.), Adrenal Glands, Vascular System and Hypertension. (pp. 115-121). Bradley Stoke, Bristol, U.K.: Journal of Endocrinology Limited.

^ Top of page

Journal - Research Article

Lewis, L. K., Raudsepp, S. D., Prickett, T. C. R., Yandle, T. G., Doughty, R. N., Frampton, C. M., Pemberton, C. J., & Richards, A. M. (2019). ProBNP that is not glycosylated at threonine 71 is decreased with obesity in patients with heart failure. Clinical Chemistry. Advance online publication. doi: 10.1373/clinchem.2019.302547

Lewis, L. K., Raudsepp, S. D., Yandle, T. G., Prickett, T. C., & Richards, A. M. (2017). Development of a BNP1-32 immunoassay that does not cross-react with proBNP. Clinical Chemistry, 63(6), 1110-1117. doi: 10.1373/clinchem.2016.269712

Justice, T. D., Hammer, G. L., Davey, R. J., Paramalingam, N., Guelfi, K. J., Lewis, L., … Fournier, P. A. (2015). Effect of antecedent moderate-intensity exercise on the glycemia-increasing effect of a 30-sec maximal sprint: A sex comparison. Physiological Reports, 3(5), 12386. doi: 10.14814/phy2.12386

Lewis, L. K., Yandle, T. G., Hilton, P. J., Jensen, B. P., Begg, E. J., & Nicholls, M. G. (2014). Endogenous ouabain is not ouabain. Hypertension, 64, 680-683. doi: 10.1161/hypertensionaha.114.03919

Mahagamasekera, P. G., Ruygrok, P. N., Palmer, S. C., Richards, A. M., Ansell, G. S., Nicholls, M. G., Pemberton, C. J., Lewis, L. K., & Yandle, T. G. (2014). B-type natriuretic peptide forms within the heart, coronary sinus, and peripheral circulation in humans: Evidence for degradation before secretion. Clinical Chemistry, 60(3), 549-558. doi: 10.1373/clinchem.2013.210435

Lewis, L. K., Raudsepp, S. D., Yandle, T. G., Frampton, C. M., Palmer, S. C., Troughton, R. W., & Richards, A. M. (2013). Comparison of immunoassays for NTproBNP conducted on three analysis systems: Milliplex, Elecsys and RIA. Clinical Biochemistry, 46(4-5), 388-390. doi: 10.1016/j.clinbiochem.2012.11.022

Adem, A., Al Haj, A., Benedict, S., Yasin, J., Nagelkerke, N., Nyberg, F., Yandle, T. G., Frampton, C. M., Lewis, L. K., Nicholls, M. G., & Kazzam, E. (2013). ANP and BNP responses to dehydration in the one-humped camel and effects of blocking the renin-angiotensin system. PLoS ONE, 8(3), e57806. doi: 10.1371/journal.pone.0057806

Scott, N. J. A., Cameron, V. A., Raudsepp, S., Lewis, L. K., Simpson, E. R., Richards, A. M., & Ellmers, L. J. (2012). Generation and characterization of a mouse model of the metabolic syndrome: Apolipoprotein E and aromatase double knockout mice. American Journal of Physiology: Endocrinology & Metabolism, 302, E576-E584. doi: 10.1152/ajpendo.00222.2011

Evans, J. J., Chitcholtan, K., Dann, J. M., Guilford, P., Harris, G., Lewis, L. K., Nagase, J., … Sykes, P. H. (2012). Adrenomedullin interacts with VEGF in endometrial cancer and has varied modulation in tumours of different grades. Gynecologic Oncology, 125(1), 214-219. doi: 10.1016/j.ygyno.2011.12.429

Braithwaite, J. E., Yandle, T. G., Nicholls, M. G., & Lewis, L. K. (2012). Interference by o-phenanthroline in the radioimmunoassay of angiotensin II in small volume blood samples. Clinical Biochemistry, 45(1-2), 168-170. doi: 10.1016/j.clinbiochem.2011.10.008

Ali, M. A., Adem, A., Chandranath, I. S., Benedict, S., Pathan, J. Y., Nagelkerke, N., … Lewis, L. K., Yandle, T. G., Nicholls, M. G., Frampton, C. M., & Kazzam, E. (2012). Responses to dehydration in the one-humped camel and effects of blocking the renin-angiotensin system. PLoS ONE, 7(5), e37299. doi: 10.1371/journal.pone.0037299

Rademaker, M. T., Charles, C. J., Ellmers, L. J., Lewis, L. K., Nicholls, M. G., & Richards, A. M. (2011). Prolonged urocortin 2 administration in experimental heart failure: Sustained hemodynamic, endocrine, and renal effects. Hypertension, 57, 1136-1144. doi: 10.1161/HYPERTENSIONAHA.111.173203

Troughton, R. W., Lewis, L. K., Yandle, T. G., Pemberton, C. J., & Nicholls, M. G. (2011). B-type natriuretic peptides: Looking to the future. Annals of Medicine, 43(3), 188-197. doi: 10.3109/07853890.2010.526630

Nicholls, M. G., Lewis, L. K., Yandle, T. G., Lord, G., Mckinnon, W., & Hilton, P. J. (2009). Ouabain, a circulating hormone secreted by the adrenals, is pivotal in cardiovascular disease. Fact or fantasy? Journal of Hypertension, 27(1), 3-8. doi: 10.1097/HJH.0b013e32831101d1

Nicholls, M. G., Charles, C. J., Lainchbury, J. G., Lewis, L. K., Rademaker, M. T., Richards, A. M., & Yandle, T. G. (2003). Adrenomedullin in heart failure. Hypertension Research, 26(Suppl.), S135-S140. doi: 10.1291/hypres.26.S135

Evans, J. J., Youssef, A. H., Yandle, T. G., Lewis, L. K., & Nicholls, M. G. (2003). Endothelin-1 directly modulates its own secretion: Studies utilising the cell immunoblot technique. Regulatory Peptides, 113, 149-153.

Evans, J. J., Youssef, A. H., Yandle, T. G., Lewis, L. K., & Nicholls, M. G. (2002). Effects of endothelin-1 on release of adrenomedullin and C-type natriuretic peptide from individual human vascular endothelial cells. Journal of Endocrinology, 175, 225-232.

Rademaker, M. T., Charles, C. J., Cooper, G. J. S., Coy, D. H., Espiner, E. A., Lewis, L. K., Nicholls, M. G., & Richards, A. M. (2002). Combined angiotensin-converting enzyme inhibition and adrenomedullin in an ovine model of heart failure. Clinical Science, 102(6), 653-660.

Rademaker, M. T., Charles, C. J., Cooper, G. J. S., Coy, D. H., Espiner, E. A., Lewis, L. K., Nicholls, M. G., & Richards, A. M. (2002). Combined endopeptidase inhibition and adrenomedullin in sheep with experimental heart failure. Hypertension, 39(1), 93-98.

Troughton, R. W., Frampton, C. M., Lewis, L. K., Yandle, T. G., Richards, A. M., & Nicholls, M. G. (2001). Differing thresholds for modulatory effects of adrenomedullin infusion on hemodynamic and hormone responses to angiotensin II and adrenocorticotrophic hormone in healthy volunteers. Clinical Science, 101, 103-109.

Nicholls, M. G., Lainchbury, J. G., Lewis, L. K., McGregor, D. O., Richards, A. M., Troughton, R. W., & Yandle, T. G. (2001). Bioactivity of adrenomedullin and proadrenomedullin N-terminal 20 peptide in man. Peptides, 22(11), 1745-1752.

Nicholls, M. G., Lainchbury, J. G., Lewis, L. K., McGregor, D. O., Richards, A. M., Troughton, R. W., & Yandle, T. G. (2001). Bioactivity of adrenomedullin and proadrenomedullin N-terminal 20 peptide in a man. Peptides, 22, 1745-1752.

Troughton, R. W., Lewis, L. K., Yandle, T. G., Richards, A. M., & Nicholls, M. G. (2000). Hemodynamic, hormone, and urinary effects of adrenomedullin infusion in essential hypertension. Hypertension, 36, 588-593.

Lainchbury, J. G., Troughton, R. W., Lewis, L. K., Yandle, T. G., Richards, A. M., & Nicholls, M. G. (2000). Haemodynamic, hormonal and renal effects of short-term adrenomedullin infusion in healthy volunteers. Journal of Clinical Endocrinology & Metabolism, 85, 1016-1020.

Charles, C. J., Lainchbury, J. G., Lewis, L. K., Rademaker, M. T., Richards, A. M., Yandle, T. G., & Nicholls, M. G. (1999). The role of adrenomedullin. American Journal of Hypertension, 12(2 Part 1), 166-173.

Lainchbury, J. G., Nicholls, M. G., Espiner, E. A., Yandle, T. G., Lewis, L. K., & Richards, A. M. (1999). Bioactivity and interactions of adrenomedullin and brain natriuretic peptide in patients with heart failure. Hypertension, 34(1), 70-75.

Lai, K. N., Leung, J. C., Yeung, V. T. F., Lewis, L. K., & Nicholls, M. G. (1998). Gene transcription and synthesis of adrenomedullin by cultured human renal cells. Biochemical & Biophysical Research Communications, 244(2), 567-572.

Lewis, L. K., Smith, M. W., Yandle, T. G., Richards, A. M., & Nicholls, M. G. (1998). Adrenomedullin (1-52) measured in human plasma by radioimmunoassay: plasma concentration, adsorption and storage. Clinical Chemistry, 44(3), 571-577.

Rademaker, M. T., Charles, C. J., Lewis, L. K., Yandle, T. G., Cooper, G. J., Coy, D. H., Richards, A. M., & Nicholls, M. G. (1997). Beneficial hemodynamic and renal effects of adrenomedullin in an ovine model of heart failure. Circulation, 96(6), 1983-1990.

Lewis, L. K., Smith, M., Brennan, S. O., Yandle, T. G., Richards, A. M., & Nicholls, M. G. (1997). Degradation of human adrenomedullin (1-52) by plasma membrane enzymes and identification of metabolites. Peptides, 18(5), 733-739.

Pidgeon, G. B., Richards, A. M., Nicholls, M. G., Lewis, L. K., Yandle, T. G., Rademaker, M. T., Charles, C. J., … Lynn, K. L. (1997). Comparison of the effects of ouabain and brain natriuretic peptide in saline-loaded sheep. Clinical & Experimental Pharmacology & Physiology, 24(11), 807-813.

Lainchbury, J. G., Cooper, G. J. S., Coy, D. H., Jiang, N. Y., Lewis, L. K., Yandle, T. G., Richards, A. M., & Nicholls, M. G. (1997). Adrenomedullin: A hypotensive hormone in man. Clinical Science, 92(5), 467-472.

Pidgeon, G. B., Lewis, L. K., Yandle, T. G., Richards, A. M., & Nicholls, M. G. (1996). Endogenous ouabain, sodium balance and blood pressure. Journal of Hypertension, 14, 169-171.

Pidgeon, G. B., Richards, A. M., Nicholls, M. G., Charles, C. J., Rademaker, M. T., Lynn, K. L., … Lewis, L. K., & Yandle, T. G. (1996). Chronic ouabain infusion does not cause hypertension in sheep. American Journal of Physiology: Endocrinology & Metabolism, 270(3), E386-E392.

Lewis, L. K., Yandle, T. G., Lewis, J. G., Richards, A. M., Pidgeon, G. B., Kaaja, R. J., & Nicholls, M. G. (1996). Diabetes mellitus in older patients. Drugs & Aging, 6, 401-407.

Nicholls, M. G., Richards, A. M., Lewis, L. K., & Yandle, T. G. (1995). Ouabain: a new steroid hormone? Lancet, 346, 1381-1382.

^ Top of page

Journal - Research Other

Lewis, L. K., Yandle, T. G., Hilton, P. J., Jensen, B. P., Begg, E. J., & Nicholls, M. G. (2014). [Response to letter re Endogenous ouabain is not ouabain]. Hypertension, 64. Retrieved from http://hyper.ahajournals.org/content/64/4/680/reply#hypertensionaha_el_351

Richards, A. M., Nicholls, M. G., Lewis, L., & Lainchbury, J. G. (1996). Adrenomedullin [Editorial review]. Clinical Science, 91(1), 3-16. doi: 10.1042/cs0910003

^ Top of page

Conference Contribution - Published proceedings: Abstract

Evans, J. J., Youssef, A. H., Yandle, T. G., Lewis, L. K., & Nicholls, M. G. (2001). Individual human vascular endothelial cells contain and secrete both adrenomedullin and endothelin. Proceedings of the New Zealand Society of Endocrinology Scientific Meeting. (pp. 4). [Abstract]

Lainchbury, J. G., Troughton, R. W., Lewis, L. K., Yandle, T. G., Espiner, E. A., Nicholls, M. G., & Richards, A. M. (1999). Low and high dose adrenomedullin infusion in normal volunteers. 72nd Scientific Sessions, American Heart Foundation. 100(18), (pp. I-350). Circulation. [Abstract]

Rademaker, M. T., Charles, C. J., Lewis, L. K., Yandle, T. G., Richards, A. M., & Nicholls, M. G. (1997). Beneficial hemodynamic and renal effects of adrenomedullin in an ovine model of heart failure. The Journal of Heart Failure. 4(1), (pp. 74). [Abstract]

Pidgeon, G. B., Richards, A. M., Nicholls, M. G., Lewis, L. K., Yandle, T. G., Rademaker, M. T., Charles, C. J., … Lynn, K. (1997). Comparison of the effects of ouabain and brain natriuretic peptide in saline-loaded sheep. Proceedings of the 32nd Annual Meeting of Australian and New Zealand Society of Nephrology. 51, (pp. 1308). [Abstract]

^ Top of page

Conference Contribution - Poster Presentation (not in published proceedings)

Lewis, L. K., Raudsepp, S. D., Yandle, T. G., & Richards, A. M. (2016, August). Development of a specific immunoassay to measure BNP1-32 in plasma without the confounding influences of precursor peptides and peptide metabolites: Could this improve heart failure diagnosis? Poster session presented at the Medical Sciences Congress (MedSci), Nelson, New Zealand.

Byers, M. S., Bailey, M., Siriwardena, M., Lewis, L. K., Oliver, J., Troughton, R., Richards, A. M., & Pemberton, C. J. (2013, August). Plasma ghrelin signal peptide can exclude co-existent pneumonia in acute decompensated heart failure. Poster session presented at the Medical Sciences Congress (MedSci), Queenstown, New Zealand.

^ Top of page

Conference Contribution - Verbal presentation and other Conference outputs

Rademaker, M. T., Charles, C. J., Espiner, E. A., Lewis, L. K., Nicholls, M. G., & Richards, A. M. (2001, August). Combined adrenomedullin administration and angiotensin-converting enzyme inhibition in experimental heart failure. Verbal presentation at the 34th International Congress of Physiological Sciences, Christchurch, New Zealand.

Rademaker, M. T., Charles, C. J., Lewis, L. K., Espiner, E. A., Nicholls, M. G., & Richards, A. M. (2001). Combined adrenomedullin adminstration and angiotensin-converting enzyme inhibition in experimental heart failure. Verbal presentation at the 34th International Congress of Physiological Sciences, Christchurch.

Troughton, R. W., McGregor, D. O., Charles, C. J., Lewis, L. K., Yandle, T., Richards, A. M., & Nicholls, M. G. (2000). Biological effects of adrenomedullin infusion in healthy volunteers, essential hypertension and chronic renal failure. Verbal presentation at the 2nd International Symposium on Adrenomedullin and PAMP, Japan.

Rademaker, M. T., Charles, C. J., Cooper, G. J. S., Coy, D. H., Espiner, E. A., Lewis, L. K., Nicholls, M. G., Pemberton, C. J., & Richards, A. M. (2000, October). Combined adrenomedullin administration and neutral endopeptidase inhibitor in heart failure. Verbal presentation at the 4th Annual Meeting of the Society for Cardiovascular Endocrinology and Metabolism, Australia.

Lainchbury, J. G., Rademaker, M. T., Charles, C. J., Lewis, L. K., Yandle, T. G., Richards, A. M., & Nicholls, M. G. (1998). Adrenomedullin in heart failure. Verbal presentation at the Centre of Excellence International Symposium on Adrenomedullin and PAMP, Osaka, Japan.

More publications...