GFR

Glomerular filtration rate. GFR is a calculation of how efficiently the kidneys are filtering wastes from the blood. A traditional GFR calculation requires an injection into the bloodstream of a substance that is later measured in a 24-hour urine collection. Recently,...

GH

Growth Hormone, secreted by the pituitary gland; the major hormone responsible for height growth Also plays a role in maintenance of bone density in adults, body composition in that it builds muscle and breaks down fat, regulates lipids, and may play a role in...

GHRH

Growth hormone releasing hormone. GHRH, or growth hormone releasing hormone is a hypothalamic peptide that regulates the synthesis and secretion of growth hormone in the anterior pituitary gland. The growth hormone (GH) stimulation test measures the level of growth...

Gland

An organ of the body that produces materials (hormones) released into the bloodstream, such as the pituitary or pineal gland. Hormones influence metabolism and other body functions. Endocrine glands include the Adrenals, Hypothalamus, Islets of Langerhans in the...