Inhibitory Effects of Leptin on Pancreatic -Cell Function
نویسندگان
چکیده
منابع مشابه
Inhibitory Effects of Leptin on Pancreatic α-Cell Function
OBJECTIVE Leptin released from adipocytes plays a key role in the control of food intake, energy balance, and glucose homeostasis. In addition to its central action, leptin directly affects pancreatic beta-cells, inhibiting insulin secretion, and, thus, modulating glucose homeostasis. However, despite the importance of glucagon secretion in glucose homeostasis, the role of leptin in alpha-cell ...
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The hormone leptin is secreted from white adipocytes, and serum levels of leptin correlate with adipose tissue mass. Leptin was first described to act on the satiety center in the hypothalamus through specific receptors (leptin receptor [ObR]) to restrict food intake and enhance energy expenditure. Important peripheral actions of leptin involve inhibition of insulin biosynthesis and secretion i...
متن کاملEffects of Leptin Replacement Therapy on Pancreatic b-Cell Function in Patients With Lipodystrophy
In a prospective, open-label, currently ongoing study we studied the effects of leptin replacement on b-cell function in 13 patients with congenital or acquired lipodystrophy. Insulin secretory rate (ISR) was calculated by C-peptide deconvolution from plasma glucose and C-peptide levels measured during oral glucose tolerance tests (OGTTs) performed at baseline and after 16–20 weeks of leptin re...
متن کاملEffects of Leptin Replacement Therapy on Pancreatic β-Cell Function in Patients With Lipodystrophy
OBJECTIVE Leptin administration is known to directly modulate pancreatic β-cell function in leptin-deficient rodent models. However, human studies examining the effects of leptin administration on β-cell function are lacking. In this study, we examined the effects (16-20 weeks) of leptin replacement on β-cell function in patients with lipodystrophy. RESEARCH DESIGN AND METHODS In a prospective,...
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Objective: Pancreatic b-cell dysfunction is described to be present at the diagnosis of type 2 diabetes mellitus (T2DM) and progressively deteriorated with disease duration. However, its progression is variable and potentially influenced by several factors. The Magnesium (Mg) deficiency mediates insulin resistance but reports regarding its role in pancreatic β-cell dysfunction are scarce and co...
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ژورنال
عنوان ژورنال: Diabetes
سال: 2009
ISSN: 0012-1797,1939-327X
DOI: 10.2337/db08-1787