Growth Hormone
Human growth hormone (GH; hGH; Somatotropin) is produced in and released from the acidophilic cells of the anterior pituitary gland. Basal levels of GH in normal individuals are usually less than 2 ng/mL and are stable throughout the day. Normal elevations in GH occur following meals, after exercise, and during sleep. Children who fail to grow at the expected rate and who have short stature with apparent normal body proportions often have a diminished capacity to secrete growth hormone. The deficiency may be either congenital or acquired. Growth hormone deficiency in both adults and children may be the direct result of neoplastic or infiltrative disease of the pituitary. It may also follow cranial irradiation for brain tumors and other neoplasms.
Swiss-Prot Accession Number: P01241