Relationship between leptin and insulin action in adult men

Paper Details

Research Paper 01/05/2013
Views (236) Download (3)
current_issue_feature_image
publication_file

Relationship between leptin and insulin action in adult men

Sokhanguei Yahya
Int. J. Biosci.3( 5), 156-161, May 2013.
Certificate: IJB 2013 [Generate Certificate]

Abstract

There is considerable evidence that obesity is associated with systemic inflammation, but the underlying mechanisms of these associations are largely unknown. In this study, we evaluate serum leptin in relation to insulin function in obese men. For this purpose, fasting serum level of leptin, insulin and glucose were measured in thirty five non-trained adult men (aged, 35 ± 5.7 years; Body mass index, 32.9 ± 3.4 kg/m2). Homeostasis Model Assessment of Insulin Resistance (HOMA-IR) and insulin sensitivity (HOMA-IS) were calculated by the fasting blood glucose and insulin. Pearson correlation method used to determine the relationship between serum leptin with insulin resistance and insulin sensitivity in studied subjects. Data analysis showed that serum leptin was positively related with insulin resistance (p = 0.003, r = 0.50) and negatively related with insulin sensitivity (p = 0.014, r = 0.43) in studied subjects. We conclude that serum leptin measuring can be precise predictor of insulin action in obese individuals.

VIEWS 2

Anissa B, Dalenda Z, Semi B, Monia Z, Youssef F, Abdelkarim Z. 2006. Leptin and Its implication in physical exercise and training: A short review. Journal of Sports Science and Medicine. 5, 172-181.

French S, Castiglione K. 2002. Recent advances in the physiology of eating. The Proceedings of the Nutrition Society 61, 489-496. http://dx.doi.org/10.1079/PNS2002190

Friedman JM, Halaas JL. 1998. Leptin and the regulation of body weight in mammals. Nature 395(6704), 763–770. http://dx.doi.org/10.1038/27376

Gray SL, Donald C, Jetha A, Covey SD, Kieffer Tj. 2010. Hyperinsulinemia precedes insulin resistance in mice lacking pancreatic beta-cell leptin signaling. Endocrinology 151(9), 4178–4186. http://dx.doi.org/10.1210/en.2010-0102

Kieffer TJ, Habener JF. 2000. The adipoinsular axis: effects of leptin on pancreatic beta-cells. American Journal of Physiology – Endocrinology and Metabolism 278, 1–14.

Koebnick C, Roberts CK, Shaibi GQ, Kelly LA, Lane CJ, Toledo-Corral CM. 2008. Adiponectin and Leptin are Independently Associated with Insulin Sensitivity, but not with Insulin Secretion or Beta-cell Function in Overweight Hispanic Adolescents. Hormone Metabolic Research Journal 40(10), 708-12. http://dx.doi.org/10.1055/s-2008-1077097

Kulkarni RN. 1997. Leptin rapidly suppresses insulin release from insulinoma cells, rat and human islets and, in vivo, in mice. Journal of Clinical Investigation 100, 2729–2736. http://dx.doi.org/10.1172/JCI119818

Matthews DR, Hosker JP, Rudenski AS, Naylor BA, Treacher DF, Turner RC. 1985. Homeostasis model assessment: insulin resistance and beta-cell function from fasting plasma glucose and insulin concentrations in man. Diabetologia 28(7), 412-419.

Moreno-Aliaga MJ, Lorente-Cebrián S, Martínez JA. 2010. Regulation of adipokine secretion by n-3 fatty acids. Proceedings of the Nutrition Society 69(3), 324-32. http://dx.doi.org/10.1017/S0029665110001801

Morioka T, Asilmaz E, Hu J, Dishinger JF, Kurpad AJ, Elias CF. 2007. Disruption of leptin receptor expression in the pancreas directly affects β cell growth and function in mice. Journal of Clinical Investigation 117(10), 2860-8. http://dx.doi.org/10.1172/JCI30910

Myers M. 2004. Leptin receptor signaling and the regulation of mammalian physiology. Recent progress in hormone research 59, 287–304. http://dx.doi.org/10.1210/rp.59.1.287

Peti A, Juhasz A, Kenyeres P, Varga Z, Seres I, Kovacs GL, Paragh G, Bajnok L. 2010. Relationship of adipokines and non-esterified fatty acid to the insulin resistance in nondiabetic individuals. Journal of Endocrinology Investigation. [Epub ahead of print]. http://dx.doi.org/10.3275/7025

Poitout V, Rouault C, Guerre-Millo M, Reach G. 1998. Does leptin regulate insulin secretion? Diabetes & Metabolism 24, 321–326.

Sadaf FI, O’Rahilly S. 2009. Leptin: a pivotal regulator of human energy homeostasis, American Journal of Clinical Nutrition 89(3), 980–984. http://dx.doi.org/10.3945/ajcn.2008.26788C

Seufert J, Kieffer TJ, Leech CA. 1999. Leptin suppression of insulin secretion and gene expression in human pancreatic islets: implications for the development of adipogenic diabetes mellitus. Journal of Clinical Endocrinology & Metabolism 84, 670– 676.

Wang C, Guan Y, Yang J. 2010. Cytokines in the Progression of Pancreatic β-Cell Dysfunction. International Journal of Endocrinology 515136. Epub 2010 Nov 14.

Zhang Y, Scarpace PJ. 2006. The role of leptin in leptin resistance and obesity. Physiology & Behavior 88, 249– 256. http://dx.doi.org/10.1016/j.physbeh.2006.05.038