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PMID |
Sentence |
1 |
11924926
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Most of these obesity disorders, with the exception of the MC4R mutations, exhibit recessive inheritance and a distinct phenotype with varying degrees of hypothalamic dysfunction, and they unravel the critical role of the central leptin and melanocortin pathways in human appetite control and energy homeostasis.
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2 |
19680233
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Recent genome-wide association studies (GWAS) in Asian Indians reported strong associations of variants near melanocortin-4 receptor (MC4R) and MLX interacting protein-like (MLXIPL) genes with insulin resistance and several obesity-related quantitative traits (QTs).
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3 |
21209091
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Surprisingly, MC4R function tested pharmacologically was normal in CREB1(?SIM1) mice, suggesting that CREB1 is not required for intact MC4R signaling.
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4 |
21460229
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We show that overexpression of ASP inhibits the rise in cAMP levels in response to ?-melanocyte-stimulating hormone, an MC4R agonist, by blocking ligand binding and by directing MC4R trafficking to the lysosome.
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5 |
21460229
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Loss-of-function of either attractin or MGRN1 blocks ASP-dependent MC4R degradation and promotes increased trafficking of internalized MC4R to the cell surface, but it does not restore ?-melanocyte-stimulating hormone-dependent cAMP signaling.
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6 |
11359864
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After STZ-DM induction, A(y)/a mice whose melanocortin-4 receptor (MC4-R) was blocked by ectopic expression of agouti protein additionally accelerated hyperphagia and up-regulated AGRP mRNA, implying that the mechanism is triggered by a leptin deficit rather than by the main action of the message through MC4-R.
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7 |
11837451
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The yellow coat colour is the result of agouti chronically antagonizing the binding of alpha-MSH to Mc1r and the obese phenotype results from agouti protein antagonizing the binding of alpha-MSH to Mc3r and/or Mc4r.
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8 |
11272133
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The melanocortin receptor (MC3-R and MC4-R) antagonist, agouti-related protein (AGRP), is a potent stimulant of food intake.
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9 |
16320160
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Agouti related protein (AgRP) is an endogenous antagonist at the MC3-R and MC4-R and is expressed in the rat adrenal cortex.
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10 |
18551122
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This hypothesis was reinforced after in vitro studies, using the mouse hypothalamic GT1-7 cell line, since both leptin and Norleucine(4), D-Phenylalanine(7)-alpha-MSH (NDP-alpha-MSH) treatments increased MC4-R expression.
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