The following is a list of what is included in the item above. Click the test(s) below to view what biomarkers are measured along with an explanation of what the biomarker is measuring.
The Alpha Melanocyte Stimulating Hormone test contains 1 test with 1 biomarker.
Patient Preparation
Fasting specimen is preferred. Patient should be free from medications for 2 days. IMPORTANT DO NOT DISCONTINUE MEDICATIONS WITHOUT THE SUPERVISION AND APPROVAL OF YOUR PHYSICIAN.
Clinical Significance
Alpha MSH is a 13 amino acid peptide (1665 kD) with serine at the N terminal end and amidated valine at the C terminal end. Alpha MSH is derived from pro-opiomelanocorticotropin, a precursor protein which contains within its structure, the sequence of ACTH, beta MSH and gamma MSH. The amino acid sequence of alpha MSH is identical to ACTH 1-13 in humans. Alpha MSH stimulates melanosome dispersion within dermal melanocytes and melanin biosynthesis within epidermal melanocytes. It also stimulates aldosterone synthesis. Plasma alpha MSH increases in humans with high fever due to endotoxin. Average plasma alpha MSH has been found higher in AIDS patients and also in obese men with insulin resistance.