This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. The overall aim of this proposal is to test the hypothesis that genetic factors contribute to the failure of the pancreatic -cell to adequately compensate for insulin resistance in polycystic ovary syndrome (PCOS). In the present studies we propose to gain insights into the genetic basis for insulin secretory dysfunction in PCOS. Our genetic model is predicated on the fact that insulin resistance is virtually inherent in the PCOS phenotype. Thus we would predict that glucose intolerance or diabetes is most likely to manifest in subjects with PCOS who, upon this 'background' of insulin resistance, also carry specific risk-imparting alleles for defects in -cell function. That is, the likelihood of expression of the diabetic phenotype would increase as the number of alleles imparting risk for defects in insulin action and defects in insulin secretion increase. While this model is not unique to PCOS, there is an advantage of testing this model in these individuals: women with PCOS are typically so profoundly insulin resistant that they appear to be operating at or near maximal -cell capacity. As such, the ability to detect latent defects in -cell function is enhanced and refines the population in which to search for genetic factors.
| Rosenfield, Robert L; Ehrmann, David A (2016) The Pathogenesis of Polycystic Ovary Syndrome (PCOS): The Hypothesis of PCOS as Functional Ovarian Hyperandrogenism Revisited. Endocr Rev 37:467-520 |
| Garyu, Justin W; Meffre, Eric; Cotsapas, Chris et al. (2016) Progress and challenges for treating Type 1 diabetes. J Autoimmun 71:1-9 |
| Maitland, Michael L; Xu, Chun-Fang; Cheng, Yu-Ching et al. (2015) Identification of a variant in KDR associated with serum VEGFR2 and pharmacodynamics of Pazopanib. Clin Cancer Res 21:365-72 |
| Bershad, Anya K; Jaffe, Jerome H; Childs, Emma et al. (2015) Opioid partial agonist buprenorphine dampens responses to psychosocial stress in humans. Psychoneuroendocrinology 52:281-8 |
| Fleming, Gini F; Schumm, Philip; Friberg, Greg et al. (2015) Circadian variation in plasma 5-fluorouracil concentrations during a 24 hour constant-rate infusion. BMC Cancer 15:69 |
| Rosenfield, Robert L (2015) The Polycystic Ovary Morphology-Polycystic Ovary Syndrome Spectrum. J Pediatr Adolesc Gynecol 28:412-9 |
| Refetoff, Samuel; Bassett, J H Duncan; Beck-Peccoz, Paolo et al. (2014) Classification and proposed nomenclature for inherited defects of thyroid hormone action, cell transport, and metabolism. J Clin Endocrinol Metab 99:768-70 |
| Kirkpatrick, Matthew G; Francis, Sunday M; Lee, Royce et al. (2014) Plasma oxytocin concentrations following MDMA or intranasal oxytocin in humans. Psychoneuroendocrinology 46:23-31 |
| Copinschi, Georges; Leproult, Rachel; Spiegel, Karine (2014) The important role of sleep in metabolism. Front Horm Res 42:59-72 |
| Müller, Peter; Quintana, Fernando A; Rosner, Gary L et al. (2014) Bayesian inference for longitudinal data with non-parametric treatment effects. Biostatistics 15:341-52 |
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