نتایج جستجو برای: melanocortin 4 receptor
تعداد نتایج: 1804255 فیلتر نتایج به سال:
In contrast to the melanocortin 4 receptor, the possible role of the melanocortin 3 receptor (MC3R) in regulating body weight is still debated. We have previously reported three mutations in the MC3R gene showing association with human obesity, but these results were not confirmed in a study of severe obese North American adults. In this study, we evaluated the entire coding region of MC3R in 8...
The melanocortin system is a critical component of the forebrain and hindbrain regulatory systems involved in energy balance. This system is composed of pro-opiomelanocortin (POMC) neurons that act, in part, through the melanocortin-4 receptor (MC4R). Although the importance of the melanocortin system in controlling feeding has been established for two decades, the understanding of the developm...
Mice with homozygous genetic disruption of the melanocortin-4 receptor gene (MC4R-/-) are known to be hyperphagic and become obese, while those with disruption of the melanocortin-3 receptor gene (MC3R-/-) do not become markedly obese. The contribution of MC3R signaling in energy homeostasis remains little studied. In the present work, we compare MC3R-/- mice with wild-type (WT), MC4R-/-, and m...
The hypothalamic melanocortin-4 receptor (MC4R), a seven transmembrane G-protein-coupled receptor, plays an important role in the regulation of body weight. The synthetic melanocortin analog SHU9119 has been widely used to characterize the physiological role of MC4R in feeding behavior and energy homeostasis. Previous studies indicated that SHU9119 is an agonist at the melanocortin-1 receptor (...
Dominant mutations at the mouse Agouti locus lead to ectopic expression of the Agouti gene and exhibit diabetes, obesity, and yellow coat color. Obese yellow mice are hyperinsulinemic and hyperleptinemic, and we hypothesized that Agouti directly induces leptin secretion. Accordingly, we used transgenic mice expressing agouti in adipocytes (under the control of aP2 promoter, aP212) to examine ch...
Melanocortin receptor accessory proteins (MRAPs) are regulators of the melanocortin receptor family. MRAP is an essential accessory factor for the functional expression of the MC2R/ACTH receptor. The importance of MRAP in adrenal gland physiology is demonstrated by the clinical condition familial glucocorticoid deficiency type 2. The role of its paralog melanocortin-2-receptor accessory protein...
Melanocortin therapy by using adrenocorticotropic hormone (ACTH) or non-steroidogenic melanocortin peptides attenuates proteinuria and glomerular injury in experimental glomerular diseases and induces remission of nephrotic syndrome in patients with diverse glomerulopathies, even those resistant to steroids. The underlying mechanism remains elusive, but the role of melanocortin 1 receptor (MC1R...
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