Biology, asked by viveksharma9385, 1 year ago

What happens if the growth of hormones are secreted more in quantity

Answers

Answered by Anonymous
1

Growth hormone is released into the bloodstream from the anterior pituitary gland. The pituitary gland also produces other hormones that have different functions from growth hormone.

Answered by RoyalPrince7143
0
Growth hormone (GH), also called somatotropin or human growth hormone, peptide hormone secreted by the anterior lobe of the pituitary gland. It stimulates the growth of essentially all tissues of the body, including bone. GH is synthesized and secreted by anterior pituitary cells called somatotrophs, which release between one and two milligrams of the hormone each day. GH is vital for normal physical growth in children; its levels rise progressively during childhood and peak during the growth spurt that occurs in puberty.

In biochemical terms, GH stimulates protein synthesis and increases fat breakdown to provide the energy necessary for tissue growth. It also antagonizes (opposes) the action of insulin. GH may act directly on tissues, but much of its effect is mediated by stimulation of the liver and other tissues to produce and release insulin-like growth factors, primarily insulin-like growth factor 1 (IGF-1; formerly called somatomedin). The term insulin-like growth factor is derived from the ability of high concentrations of these factors to mimic the action of insulin, although their primary action is to stimulate growth. Serum IGF-1 concentrations increase progressively with age in children, with an accelerated increase at the time of the pubertal growth spurt. After puberty the concentrations of IGF-1 gradually decrease with age, as do GH concentrations.



growth hormoneChemical structure of human growth hormone. The image at left is a space-filling, all-atom representation, and the image on the right is a ribbon representation of the same protein.© Molekuul/Dreamstime.com

GH secretion is stimulated by growth hormone-releasing hormone (GHRH) and is inhibitedby somatostatin. In addition, GH secretion is pulsatile, with surges in secretion occurring after the onset of deep sleep that are especially prominent at the time of puberty. In normal subjects, GH secretion increases in response to decreased food intake and to physiological stresses and decreases in response to food ingestion. However, some individuals are affected by abnormalities in GH secretion, which involve either deficiency or overabundance of the hormone.
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