GHRH in Gastrointestinal Endocrinology	

Growth-hormone releasing hormone (GHRH) is a peptide with three immunoreactive forms of thirty-seven, forty, and forty-four amino acids which is released from the hypothalamus, principally in the forty-four amino-acid form, to stimulate growth hormone (GH) release, but is also found in significant concentrations, mainly in the forty amino-acid form, in the small intestinal mucosa where its function is unknown.