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

Research Professor Christopher J. Charles

Christopher J. Charles

BSc(Cant) MSc(Cant) PhD(Otago)

Email: chris.charles@otago.ac.nz

Christchurch Heart Institute
Department of Medicine
University of Otago, Christchurch
PO Box 4345
Christchurch 8140
New Zealand

Current Roles

  • Research Professor Christchurch Heart Institute
  • Co-Director, Physiology Division, Christchurch Heart Institute
  • Deputy Head of Department, Research - Department of Medicine
  • Principal Investigator, HRC Project Grant and Named Investigator, HRC Programme Grant

Research Interests

  • integrative cardiovascular, endocrine and renal physiology of pressure/volume homeostasis
  • bioactivity of vasoactive hormones including natriuretic peptides, adrenomedullins and urocortins
  • pathophysiology of myocardial infarction, heart failure and sudden cardiac death
  • cardiac sympathetic nervous activity in health and disease

Professional Memberships/Roles

  • 2008-present, (Co)Chair, Medical Sciences Congress and Treasurer, NZ Society Medical Sciences
  • 2005-present, Executive Council of Physiological Society of New Zealand
  • 2006-2009, Executive Council of NZ Society of Endocrinology

^ Top of page

Publications

Pemberton, C. J., Charles, C. J., & Richards, A. M. (2017). Cardiac natriuretic peptides. In J. C. Schisler, C. H. Lang & M. S. Willis (Eds.), Endocrinology of the heart in health and disease. (pp. 3-39). Elsevier. doi: 10.1016/B978-0-12-803111-7.00001-4

Wong, L. L., Rademaker, M. T., Saw, E. L., Lew, K. S., Ellmers, L. J., Charles, C. J., Richards, A. M., & Wang, P. (2017). Identification of novel microRNAs in the sheep heart and their regulation in heart failure. Scientific Reports, 7(1), 8250. doi: 10.1038/s41598-017-08574-x

Rademaker, M. T., Ellmers, L. J., Charles, C. J., & Richards, A. M. (2015). Urocortin 2 protects heart and kidney structure and function in an ovine model of acute decompensated heart failure: Comparison with dobutamine. International Journal of Cardiology, 197, 56-65. doi: 10.1016/j.ijcard.2015.06.011

Charles, C. J., Jardine, D. L., Rademaker, M. T., & Richards, A. M. (2014). Low-dose B-type natriuretic peptide raises cardiac sympathetic nerve activity in sheep. American Journal of Physiology: Regulatory, Integrative & Comparative Physiology, 307(2), R206-R211. doi: 10.1152/ajpregu.00404.2013

Charles, C. J., Jardine, D. L., Rademaker, M. T., & Richards, A. M. (2010). Urocortin 2 induces potent long-lasting inhibition of cardiac sympathetic drive despite baroreflex activation in conscious sheep. Journal of Endocrinology, 204, 181-189. doi: 10.1677/JOE-08-0505

Chapter in Book - Research

Pemberton, C. J., Charles, C. J., & Richards, A. M. (2017). Cardiac natriuretic peptides. In J. C. Schisler, C. H. Lang & M. S. Willis (Eds.), Endocrinology of the heart in health and disease. (pp. 3-39). Elsevier. doi: 10.1016/B978-0-12-803111-7.00001-4

^ Top of page

Chapter in Book - Other

Richards, M., Troughton, R., Espiner, E., Cameron, V., Ellmers, L., Pilbrow, A., Charles, C., Rademaker, M., Pemberton, C., & Yandle, T. (2013). Christchurch Heart Institute. In P. Joyce, G. Nicholls, K. Thomas & T. Wilkinson (Eds.), The Christchurch experience: 40 years of research and teaching. (pp. 68-74). Christchurch, New Zealand: University of Otago.

^ Top of page

Journal - Research Article

Wong, L. L., Rademaker, M. T., Saw, E. L., Lew, K. S., Ellmers, L. J., Charles, C. J., Richards, A. M., & Wang, P. (2017). Identification of novel microRNAs in the sheep heart and their regulation in heart failure. Scientific Reports, 7(1), 8250. doi: 10.1038/s41598-017-08574-x

Ellmers, L. J., Rademaker, M. T., Charles, C. J., Yandle, T. G., & Richards, A. M. (2016). (PRO)renin receptor blockade ameliorates cardiac injury and remodeling and improves function after myocardial infarction. Journal of Cardiac Failure, 22(1), 64-72. doi: 10.1016/j.cardfail.2015.08.341

Rademaker, M. T., Ellmers, L. J., Charles, C. J., & Richards, A. M. (2015). Urocortin 2 protects heart and kidney structure and function in an ovine model of acute decompensated heart failure: Comparison with dobutamine. International Journal of Cardiology, 197, 56-65. doi: 10.1016/j.ijcard.2015.06.011

Charles, C. J., Rademaker, M. T., Melton, I. C., Gutfinger, D., Eigler, N. L., Qu, F., & Troughton, R. W. (2015). Thoracic impedance measures tissue characteristics in the vicinity of the electrodes, not intervening lung water: Implications for heart failure monitoring. Journal of Clinical Monitoring & Computing, 29(1), 65-76. doi: 10.1007/s10877-014-9570-x

Chan, W. Y. W., Charles, C. J., Frampton, C. M., Richards, A. M., Crozier, I. G., Troughton, R. W., & Jardine, D. L. (2015). Human muscle sympathetic nerve responses to urocortin-2 in health and stable heart failure. Clinical & Experimental Pharmacology & Physiology, 42(9), 888-895. doi: 10.1111/1440-1681.12449

Rademaker, M. T., Charles, C. J., & Richards, M. (2014). Sheep for the study of the urocortins and other hormones. Cardiovascular Endocrinology, 3(1), 39-43. doi: 10.1097/XCE.0000000000000024

Charles, C. J., Jardine, D. L., Rademaker, M. T., & Richards, A. M. (2014). Low-dose B-type natriuretic peptide raises cardiac sympathetic nerve activity in sheep. American Journal of Physiology: Regulatory, Integrative & Comparative Physiology, 307(2), R206-R211. doi: 10.1152/ajpregu.00404.2013

Roberts, A., Trainor, K. E., Weeks, B., Jackson, N., Troughton, R. W., Charles, C. J., Rademaker, M. T., Melton, I. C., Crozier, I. G., … Clubb, Jr, F. J. (2013). Integrated microscopy techniques for comprehensive pathology evaluation of an implantable left atrial pressure sensor. Journal of Histotechnology, 36(1), 17-27. doi: 10.1179/2046023613Y.0000000021

Trainor, K. E., Roberts, A., Weeks, B., Jackson, N., Troughton, R. W., Charles, C. J., Rademaker, M. T., Melton, I. C., Crozier, I. G., … Clubb, Jr, F. J. (2013). Comparative pathology of an implantable left atrial pressure sensor. ASAIO Journal, 59(5), 486-492. doi: 10.1097/MAT.0b013e31829bdffd

Rademaker, M. T., Charles, C. J., Nicholls, M. G., & Richards, A. M. (2013). Interactions of enhanced urocortin 2 and mineralocorticoid receptor antagonism in experimental heart failure. Circulation: Heart Failure, 6(4), 825-832. doi: 10.1161/circheartfailure.112.000205

Rademaker, M. T., Yandle, T. G., Ellmers, L. J., Charles, C. J., Nicholls, M. G., & Richards, A. M. (2012). Hemodynamic, hormonal, and renal effects of (pro)renin receptor blockade in experimental heart failure. Circulation: Heart Failure, 5, 645-652. doi: 10.1161/circheartfailure.112.967059

Patel, K., Rademaker, M. T., Kirkpatrick, C. M. J., Charles, C. J., Fisher, S., Yandle, T. G., & Richards, A. M. (2012). Comparative pharmacokinetics and pharmacodynamics of urocortins 1, 2 and 3 in healthy sheep. British Journal of Pharmacology, 166(6), 1916-1925. doi: 10.1111/j.1476-5381.2012.01904.x

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

Charles, C. J., Jardine, D. L., Rademaker, M. T., & Richards, M. (2011). Urocortin 3 inhibits cardiac sympathetic nerve activity in conscious sheep. Journal of Cardiovascular Pharmacology, 58(4), 418-423. doi: 10.1097/FJC.0b013e31822707a4

Rademaker, M. T., Charles, C. J., Nicholls, G., & Richards, M. (2011). Urocortin 2 sustains haemodynamic and renal function during introduction of beta-blockade in experimental heart failure. Journal of Hypertension, 29, 1787-1795. doi: 10.1097/HJH.0b013e3283493776

Rademaker, M. T., Charles, C. J., Melton, I. C., Richards, A. M., Frampton, C. M., Siou, J., … Troughton, R. W. (2011). Monitoring of heart failure: Comparison of left atrial pressure with intrathoracic impedance and natriuretic peptide measurements in an experimental model of ovine heart failure. Clinical Science, 120(5), 207-217. doi: 10.1042/CS20100388

Charles, C. J., Rademaker, M. T., & Richards, A. M. (2011). Hemodynamic, hormonal, and renal actions of adrenomedullin-5 in normal conscious sheep. Journal of Cardiovascular Pharmacology, 58(1), 25-31. doi: 10.1097/FJC.0b013e31821a9473

Charles, C. J. (2011). Update on apelin peptides as putative targets for cardiovascular drug discovery. Expert Opinion on Drug Discovery, 6(6), 633-644. doi: 10.1517/17460441.2011.571251

Charles, C. J., Rademaker, M. T., Nicholls, M. G., & Richards, A. M. (2010). Adrenomedullin 2 attenuates the pressor but not adrenal responses to angiotensin II in conscious sheep. Peptides, 31, 878-882. doi: 10.1016/j.peptides.2010.02.010

Charles, C. J., Jardine, D. L., Rademaker, M. T., & Richards, A. M. (2010). Urocortin 2 induces potent long-lasting inhibition of cardiac sympathetic drive despite baroreflex activation in conscious sheep. Journal of Endocrinology, 204, 181-189. doi: 10.1677/JOE-08-0505

Rademaker, M. T., Charles, C. J., Nicholls, M. G., & Richards, A. M. (2009). Urocortin 2 inhibits furosemide-induced activation of renin and enhances renal function and diuretic responsiveness in experimental heart failure. Circulation: Heart Failure, 2(6), 532-540. doi: 10.1161/CIRCHEARTFAILURE.109.861336

Prickett, T. C. R., Charles, C. J., Yandle, T. G., Richards, A. M., & Espiner, E. A. (2009). Skeletal contributions to plasma CNP forms: Evidence from regional sampling in growing lambs. Peptides, 30(12), 2343-2347. doi: 10.1016/j.peptides.2009.07.023

Charles, C. J. (2008). The apelin peptides as putative targets in cardiovascular drug discovery and development. Expert Opinion on Drug Discovery, 3(1), 51-64. doi: 10.1517/17460441.3.1.51

Rademaker, M. T., Charles, C. J., Nicholls, M. G., & Richards, A. M. (2008). Urocortin 2 combined with angiotensin-converting enzyme inhibition in experimental heart failure. Clinical Science, 114(10), 635-642. doi: 10.1042/CS20070364

Charles, C. J., Katafuchi, T., Yandle, T. G., & Minamino, N. (2008). Identification and biological activity of ovine and caprine calcitonin receptor-stimulating peptides 1 and 2. Journal of Endocrinology, 198(2), 429-437. doi: 10.1677/JOE-08-0106

Charles, C. J., Jardine, D. L., Nicholls, M. G., Rademaker, M. T., & Richards, A. M. (2008). Urocortin 1 exhibits potent inhibition of cardiac sympathetic nerve activity in conscious sheep. Journal of Hypertension, 26(1), 53-60.

Rademaker, M. T., Charles, C. J., Nicholls, M. G., & Richards, A. M. (2008). Hemodynamic, hormonal, and renal actions of adrenomedullin 2 in experimental heart failure. Circulation: Heart Failure, 1, 134-142. doi: 10.1161/circheartfailure.107.755504

Chambers, S. T., Pithie, A., Gallagher, K., Liu, T., Charles, C. J., & Seaward, L. (2007). Treatment of Staphylococcus epidermidis central vascular catheter infection with 70% ethanol locks: Efficacy in a sheep model. Journal of Antimicrobial Chemotherapy, 59, 779-782.

Jardine, D. L., Charles, C. J., Frampton, C. M., & Richards, A. M. (2007). Cardiac sympathetic nerve activity and ventricular fibrillation during acute myocardial infarction in a conscious sheep model. American Journal of Physiology: Heart & Circulatory Physiology, 293, H433-H439. doi: 10.1152/ajpheart.01262.2006

Charles, C. J. (2007). Putative role for apelin in pressure/volume homeostasis and cardiovascular disease. Cardiovascular & Hematological Agents in Medicinal Chemistry, 5, 1-10.

Charles, C. J., Rademaker, M. T., & Richards, A. M. (2007). Urocortin 1 modulates the neurohumoral response to acute nitroprusside-induced hypotension in sheep. Clinical Science, 112, 485-491.

Rademaker, M. T., Charles, C. J., & Richards, A. M. (2007). Urocortin 1 administration from onset of rapid left ventricular pacing represses progression to overt heart failure. American Journal of Physiology: Heart & Circulatory Physiology, 293, H1536-H1544. doi: 10.1152/ajpheart.00377.2007

Charles, C. J., Prickett, T. C. R., Espiner, E. A., Rademaker, M. T., Richards, A. M., & Yandle, T. G. (2006). Regional sampling and the effects of experimental heart failure in sheep: Differential responses in A, B and C-type natriuretic peptides. Peptides, 27(1), 62-68. doi: 10.1016/j.peptides.2005.06.019

Rademaker, M. T., Cameron, V. A., Charles, C. J., & Richards, A. M. (2006). Urocortin 3: Haemodynamic, hormonal, and renal effects in expermental heart failure. European Heart Journal, 27(17), 2088-2098.

Charles, C. J., Rademaker, M. T., Richards, A. M., & Yandle, T. G. (2006). Plasma urocortin 1 in sheep: Regional sampling and effects of experimental heart failure. Peptides, 27, 1801-1805.

Charles, C. J., Rademaker, M. T., & Richards, A. M. (2006). Hemodynamic, hormonal, and renal actions of adrenomedullin-2 in normal conscious sheep. Endocrinology, 147(4), 1871-1877.

Charles, C. J., Rademaker, M. T., & Richards, A. M. (2006). Apelin-13 induces a biphasic haemodynamic response and hormonal activation in normal conscious sheep. Journal of Endocrinology, 189(3), 701-710.

Rademaker, M. T., Charles, C. J., Espiner, E. A., Frampton, C. M., Lainchbury, J. G., & Richards, A. M. (2005). Four-day urocortin-I administration has sustained beneficial haemodynamic, hormonal, and renal effects in experimental heart failure. European Heart Journal, 26, 2055-2062. doi: 10.1093/eurheartj/ehi351

Charles, C. J., Rademaker, M. T., Richards, A. M., & Yandle, T. G. (2005). Urotensin II: Evidence for cardiac, hepatic and renal production. Peptides, 26, 2211-2214. doi: 10.1016/j.peptides.2005.03.043

Charles, C. J., Jardine, D. L., Nicholls, M. G., & Richards, A. M. (2005). Adrenomedullin increases cardiac sympathetic nerve activity in normal conscious sheep. Journal of Endocrinology, 187, 275-281.

Jardine, D. L., Charles, C. J., Ashton, R. K., Bennett, S. I., Whitehead, M., Frampton, C. M., & Nicholls, M. G. (2005). Increased cardiac sympathetic nerve activity following acute myocardial infarction in a sheep model. Journal of Physiology, 565(1), 325-333. doi: 10.1113/jphysiol.2004.082198

Charles, C. J., Rademaker, M. T., Nicholls, M. G., & Richards, A. M. (2005). Adrenomedullin in heart failure: Potential therapeutic implications. Future Cardiology, 1(2), 235-243.

Rademaker, M. T., Cameron, V. A., Charles, C. J., & Richards, A. M. (2005). Integrated hemodynamic, hormonal, and renal actions of urocortin 2 in normal and paced sheep: Beneficial effects in heart failure. Circulation, 112, 3624-3632. doi: 10.1161/CIRCULATIONAHA.105.561308

Rademaker, M. T., Charles, C. J., Espiner, E. A., Frampton, C. M., Lainchbury, J. G., & Richards, A. M. (2005). Endogenous urocortins reduce vascular tone and renin-aldosterone / endothelin activity in experimental heart failure. European Heart Journal, 26(19), 2046-2054. doi: 10.1093/eurheartj/ehi227

Rademaker, M. T., Charles, C. J., Espiner, E. A., Frampton, C. M., Nicholls, M. G., & Richards, A. M. (2004). Combined inhibition of angiotensin II and endothelin suppresses the brain natriuretic peptide response to developing heart failure. Clinical Science, 106, 569-576.

Richards, A. M., & Charles, C. (2004). Urotensin II in the cardiovascular system. Peptides, 25(10), 1795-1802. doi: 10.1016/j.peptides.2004.04.017

Charles, C. J., Lainchbury, J. G., Nicholls, M. G., Rademaker, M. T., Richards, A. M., & Troughton, R. W. (2003). Adrenomedullin and the renin-angiotensin-aldosterone system. Regulatory Peptides, 112(1-3), 41-49.

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

More publications...