Leptin
is a 16kD protein that plays a critical role in the regulation
of body weight by inhibiting food intake and stimulating
energy expenditure. Defects in leptin production cause
severe hereditary obesity in rodents and humans. In addition
to its effects on body weight, leptin has a variety of
other functions, including the regulation of hematopoiesis,
angiogenesis, wound healing, and the immune and inflammatory
response. The LEP gene is the human homolog of the gene
(ob) mutant in the mouse 'obese' phenotype.
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