Melanin-concentrating hormone (MCH) is a circulating 19-amino acid residue cyclic neuropeptide present in hypothalamus. In mammals, MCH is a, encoded by the precursor pro-melanin concentrating hormone (PMCH). It was first discovered in fish and subsequently in mammalian (rat). MCH perikarya is confined largely to the lateral hypothalamus area (LHA) and the adjacent zon incerta with extensive neuronal projections throughout the brain. MCH is detected in basal ganglia, neocortex, cerebellum, thymus, brown adipose tissue, duodenum, and testis. The structure of MCH is highly conserved among species.
Immunogen
synthetic peptide corresponding to human melanin-concentrating hormone conjugated to KLH. The MCH sequence is identical in many species including rat, mouse, and pig.
Application
Anti-MCH antibody may be used at a working dilution of 1:30000 for RIA. For immunohistochemistry of mouse hypothalamus sections, a working antibody dilution of 1:200 may be used. The antibody has been used for immunoblotting in cytoplasmic extracts of T cells at a concentration of 5.7 μg/ml. The antibody is suitable for protein microarray.
Anti-MCH antibody produced in rabbit has been used in radioimmunoassay and immunohistochemistry.
Biochem/physiol Actions
MCH mRNA is overexpressed and up-regulated during fasting in the hypothalamus of ob/ob mice as well as rats. Injection of MCH into the lateral ventricles in rats promote increased food consumption. In addition, knockout mice lacking MCH gene are lean and hypophagic and show an increase in metabolic rate. In contrast, overexpression of MCH in transgenic mice leads to obesity and insulin resistance.
Physical form
Solution in phosphate buffered saline containing 15 mM sodium azide.
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The Journal of endocrinology, 232(3), 513-523 (2017-01-06)
Melanin-concentrating hormone (MCH) is a hypothalamic neuropeptide with a well-characterised role in energy homeostasis and emergent roles in diverse physiologic functions such as arousal, mood and reproduction. Work to date has predominantly focused on its hypothalamic functions using animal models;
Different camouflages work best with some background matching colour. Our understanding of the evolution of skin colour is based mainly on the genetics of pigmentation ("background matching"), with little known about the evolution of the neuroendocrine systems that facilitate "background
Journal of neuroendocrinology, 32(2), e12827-e12827 (2020-01-10)
A population of neurones in the medial part of the medial preoptic area (mPOA) transiently express melanin-concentrating hormone (MCH) in mid to late lactation in the rat, and this expression disappears on weaning. Prolactin is known to mediate many of
Melanin-concentrating hormone overexpression in transgenic mice leads to obesity and insulin resistance
Ludwig DS, et al.
The Journal of Clinical Investigation, 107(3), 379-386 (2001)
Mice lacking melanin-concentrating hormone are hypophagic and lean
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