human chorionic gonadotrophin

human chorionic gonadotrophin
(HCG)
a hormone, similar to the pituitary gonadotrophin that is produced by the placenta during pregnancy. Large amounts are excreted in the urine, and this is used as the basis for most pregnancy test. The level of HCG in the serum is one of the indicators used in the triple marker test for Down's syndrome. HCG maintains the secretion of progesterone by the corpus luteum of the ovary, the secretion of pituitary gonadotrophins being blocked during pregnancy. HCG is given by injection to treat delayed puberty, undescended testes, premenstrual tension, and (with follicle-stimulating hormone) sterility due to lack of ovulation.

Medical dictionary. 2011.

Игры ⚽ Поможем решить контрольную работу

Look at other dictionaries:

  • human chorionic gonadotrophin — noun hormone produced early in pregnancy by the placenta; detection in the urine and serum is the basis for one kind of pregnancy test • Syn: ↑human chorionic gonadotropin, ↑HCG • Hypernyms: ↑gonadotropin, ↑gonadotrophin, ↑gonadotropic hormone,… …   Useful english dictionary

  • human chorionic gonadotrophin — hCG a hormone, similar to the pituitary gonadotrophins, that is produced by the placenta during pregnancy. hCG maintains the secretion of progesterone by the corpus luteum of the ovary, the secretion of pituitary gonadotrophins being blocked… …   The new mediacal dictionary

  • Human chorionic gonadotropin — chorionic gonadotropin, alpha polypeptide Identifiers Symbol CGA Alt. symbols FSHA, GPHa, GPHA1, HCG, LHA, TSHA …   Wikipedia

  • human chorionic gonadotropin — noun hormone produced early in pregnancy by the placenta; detection in the urine and serum is the basis for one kind of pregnancy test • Syn: ↑human chorionic gonadotrophin, ↑HCG • Hypernyms: ↑gonadotropin, ↑gonadotrophin, ↑gonadotropic hormone,… …   Useful english dictionary

  • human chorionic gonadotropin — noun a hormone produced by the placenta and fertilised egg after implantation in the wall of the uterus, used as an indicator for pregnancy testing. Abbrev.: HCG Also, human chorionic gonadotrophin …  

  • Гонадотропин Человеческий Хорионическии (Human Chorionic Gonadotrophin, Hcg) — секретируемый плацентой во время беременности гормон, сходный с гонадотропинами, которые вырабатывает гипофиз. В больших количествах этот гормон выделяется с мочой, что используется в качестве определяющего беременность фактора в большинстве… …   Медицинские термины

  • gonadotrophin — n. = GONADOTROPHIC HORMONE. * * * noun hormone secreted by the anterior pituitary gland and placenta; stimulates the gonads and controls reproductive activity • Syn: ↑gonadotropin, ↑gonadotropic hormone, ↑gonadotrophic hormone • Derivationally… …   Useful english dictionary

  • gonadotrophin — SYN: gonadotropin. [for g., fr. gonad + G. trophe, nourishment] * * * (gonadotrophic hormone) n. any of several hormones synthesized and released by the pituitary gland that act on the testes or ovaries (gonads) to promote production of sex… …   Medical dictionary

  • gonadotrophin — gonadotrophic hormone; n. any of several hormones synthesized and released by the pituitary gland that act on the testes or ovaries (gonads) to promote production of sex hormones and either sperm or ova. Their production is controlled by… …   The new mediacal dictionary

  • Chorionic gonadotropin beta — Chorionic gonadotropin, beta polypeptide PDB rendering based on 1hcn …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”