Description
Principle of the assay: This assay employs the competitive inhibition enzyme immunoassay technique. The microtiter plate provided in this kit has been pre-coated with an antibody specific to LEP. Standards or samples are added to the appropriate microtiter plate wells with biotin-conjugated LEP. A competitive inhibition reaction is launched between LEP (Standards or samples) and biotin-conjugated LEP with the pre-coated antibody specific for LEP. The more amount of LEP in samples, the less antibody bound by biotin-conjugated LEP. After washing, Streptavidin conjugated Horseradish Peroxidase (HRP) is added to the wells. Substrate solution is added to the wells and the color develops in opposite to the amount of LEP in the sample. The color development is stopped and the intensity of the color is measured.
Background: Leptin is a protein hormone with important effects in regulating body weight, metabolism and reproductive function. Leptin is a 16-kD 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. Leptin acts through the leptin receptor (LEPR), a single-transmembrane-domain receptor of the cytokine receptor family, which is found in many tissues in several alternatively spliced forms. The LEP gene is the human homolog of the gene (ob) mutant in the mouse 'obese' phenotype