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BCAABCKA axis regulates WAT browning through acetylation of PRDM16

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In 1997, a mouse study demonstrated that genetic ablation of Mc4r resulted in an obese phenotype, hyperphagia, and hyperinsulinemia ( Mc3r knockout mice exhibit increased adiposity without developing overt obesity and, in some cases, display hypophagia ( Mc3r / Mc4r double knockout mice develop a more severe obese phenotype than Mc4r knockout animals alone, indicating that the two receptors exert non-redundant effects on energy homeostasis ( In line with these observations in rodents, human genetic studies published in the early 2000s identified MC4R mutations as the most common monogenic cause of obesity, affecting up to 6% of individuals with severe obesity ( MC3R mutations were reported in fewer than 2% of obese individuals ( In parallel with emerging genetic evidence, early pharmacological studies using MC3R-selective ligands, including -MSH and synthetic analogues, further shaped receptor prioritization within the MC system ( While these studies emphasized the role of MC4R in regulating metabolism, later research implicates both MC3R and MC4R in modulation of food intake and body weight

Effects of combination of sibutramine and L-carnitine compared with sibutramine monotherapy on inflammatory parameters in diabetic patients