Monday, May 20, 2024


Reference Range

Somatostatin is a polypeptide that is released in the gastrointestinal tract by delta cells and the hypothalamus. It functions as a key regulatory peptide that has many physiologic effects as an inhibitor for many other hormones, including gastrin, cholecystokinin, glucagon, growth hormone, insulin, secretin, pancreatic polypeptide, vasoactive intestinal peptide, 5-HT, and some anterior pituitary hormones.

The reference range for plasma somatostatin in adults is 10-22 pg/mL, the conversion factor is 0.426, and the SI units are 4.26-9.37 pmol/L. Draw in prechilled tube, separate plasma, and freeze immediately.

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