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Otago Medical School staff profiles

Dr Mohammed Rizwan

PositionResearch Fellow
DepartmentsDepartment of Anatomy, Department of Physiology
QualificationsBSc DipGradSci PGDipSci (Otago) PhD
Research summaryNeuroendocrine regulation of body weight and glucose homeostasis

Research

Working with Dr Alex Tups and Professor Dave Grattan's research groups. Research interest includes investigating mechanisms that causes leptin resistance, which is a hallmark of obesity, in response to high fat diet. And to understand the specific neuronal pathways involved in regulating bodyweight and glucose homeostasis.

Publications

Skinner, N. J., Rizwan, M. Z., Grattan, D. R., & Tups, A. (2019). Chronic light cycle-disruption alters central insulin and leptin signalling as well as metabolic markers in male mice. Endocrinology. Advance online publication. doi: 10.1210/en.2018-00935

Rizwan, M. Z., Mehlitz, S., Grattan, D. R., & Tups, A. (2017). Temporal and regional onset of leptin resistance in diet-induced obese mice. Journal of Neuroendocrinology, 29(10), e12481. doi: 10.1111/jne.12481

Kim, J. S., Rizwan, M. Z., Clegg, D. J., & Anderson, G. M. (2016). Leptin signaling is not required for anorexigenic estradiol effects in female mice. Endocrinology, 157(5), 1991-2001. doi: 10.1210/en.2015-1594

Evans, M. C., Rizwan, M. Z., & Anderson, G. M. (2015). Insulin does not target CamkIIα neurones to critically regulate the neuroendocrine reproductive axis in mice. Journal of Neuroendocrinology, 27(12), 899-910. doi: 10.1111/jne.12330

Evans, M. C., Rizwan, M. Z., & Anderson, G. M. (2014). Insulin action on GABA neurons is a critical regulator of energy balance but not fertility in mice. Endocrinology, 155(11), 4368-4379. doi: 10.1210/en.2014-1412

Journal - Research Article

Skinner, N. J., Rizwan, M. Z., Grattan, D. R., & Tups, A. (2019). Chronic light cycle-disruption alters central insulin and leptin signalling as well as metabolic markers in male mice. Endocrinology. Advance online publication. doi: 10.1210/en.2018-00935

Rizwan, M. Z., Mehlitz, S., Grattan, D. R., & Tups, A. (2017). Temporal and regional onset of leptin resistance in diet-induced obese mice. Journal of Neuroendocrinology, 29(10), e12481. doi: 10.1111/jne.12481

Kim, J. S., Rizwan, M. Z., Clegg, D. J., & Anderson, G. M. (2016). Leptin signaling is not required for anorexigenic estradiol effects in female mice. Endocrinology, 157(5), 1991-2001. doi: 10.1210/en.2015-1594

Evans, M. C., Rizwan, M. Z., & Anderson, G. M. (2015). Insulin does not target CamkIIα neurones to critically regulate the neuroendocrine reproductive axis in mice. Journal of Neuroendocrinology, 27(12), 899-910. doi: 10.1111/jne.12330

Evans, M. C., Rizwan, M. Z., & Anderson, G. M. (2014). Insulin action on GABA neurons is a critical regulator of energy balance but not fertility in mice. Endocrinology, 155(11), 4368-4379. doi: 10.1210/en.2014-1412

Rizwan, M. Z., Harbid, A. A., Inglis, M. A., Quennell, J. H., & Anderson, G. M. (2014). Evidence that hypothalamic RFamide related peptide-3 neurones are not leptin-responsive in mice and rats. Journal of Neuroendocrinology, 26(4), 247-257. doi: 10.1111/jne.12140

Evans, M. C., Rizwan, M., Mayer, C., Boehm, U., & Anderson, G. M. (2014). Evidence that insulin signalling in gonadotrophin-releasing hormone and kisspeptin neurones does not play an essential role in metabolic regulation of fertility in mice. Journal of Neuroendocrinology, 26(7), 468-479. doi: 10.1111/jne.12166

Rizwan, M. Z., Poling, M. C., Corr, M., Cornes, P. A., Augustine, R. A., Quennell, J. H., … Anderson, G. M. (2012). RFamide-related peptide-3 receptor gene expression in GnRH and kisspeptin neurons and GnRH-dependent mechanism of action. Endocrinology, 153(8), 3770-3779. doi: 10.1210/en.2012-1133

Tups, A., Anderson, G. M., Rizwan, M., Augustine, R. A., Chaussade, C., Shepherd, P. R., & Grattan, D. R. (2010). Both p110α and p110β isoforms of phosphatidylinositol 3-OH-kinase are required for insulin signalling in the hypothalamus. Journal of Neuroendocrinology, 22(6), 534-542. doi: 10.1111/j.1365-2826.2010.01975.x

Quennell, J. H., Rizwan, M. Z., Relf, H.-L., & Anderson, G. M. (2010). Developmental and steroidogenic effects on the gene expression of RFRP and its receptor in the rat brain and pituitary gland. Journal of Neuroendocrinology, 22, 309-316. doi: 10.1111/j.1365-2826.2010.01963.x

Anderson, G. M., Relf, H.-L., Rizwan, M. Z., & Evans, J. J. (2009). Central and peripheral effects of RFamide-related peptide-3 on luteinizing hormone and prolactin secretion in rats. Endocrinology, 150(4), 1834-1840. doi: 10.1210/en.2008-1359

Rizwan, M. Z., Porteous, R., Herbison, A. E., & Anderson, G. M. (2009). Cells expressing RFamide-related peptide-1/3, the mammalian gonadotropin-inhibitory hormone orthologs, are not hypophysiotropic neuroendocrine neurons in the rat. Endocrinology, 150(3), 1413-1420. doi: 10.1210/en.2008-1287

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