luteinizing hormone

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lu·te·in·iz·ing hormone

n. Abbr. LH
A hormone produced by the anterior lobe of the pituitary gland that stimulates ovulation and the development of the corpus luteum in the female and the production of testosterone by the interstitial cells of the testis in the male.

luteinizing hormone

(Biochemistry) a gonadotrophic hormone secreted by the anterior lobe of the pituitary gland. In female vertebrates it stimulates ovulation, and in mammals it also induces the conversion of the ruptured follicle into the corpus luteum. In male vertebrates it promotes maturation of the interstitial cells of the testes and stimulates androgen secretion. Abbreviation: LH Also called: interstitial cell-stimulating hormone See also follicle-stimulating hormone, prolactin
[C19: from Latin lūteum egg yolk, from lūteus yellow]


luteinizing hormone: a pituitary hormone that acts in the ovary to stimulate ripening of the follicle and formation of the corpus luteum.


also L.H.,

1. left hand.
2. lower half.

luteinizing hormone

(LH) A hormone that in females helps to make ova mature and triggers ovulation, and in males makes testes produce testosterone. LH comes from the pituitary gland and acts with FSH. See folliclestimulating hormone.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.luteinizing hormone - a gonadotropic hormone that is secreted by the anterior pituitary; stimulates ovulation in female mammals and stimulates androgen release in male mammals
gonadotrophic hormone, gonadotrophin, gonadotropic hormone, gonadotropin - hormone secreted by the anterior pituitary gland and placenta; stimulates the gonads and controls reproductive activity

lu·te·i·niz·ing hor·mone

n. hormona luteinizante producida por la pituitaria anterior que estimula la secreción de hormonas sexuales por los testículos (testosterona) y el ovario (progesterona) e interviene en la formación de esperma y óvulos.
References in periodicals archive ?
Introduction The human luteinizing hormone (LH)/chorionic gonadotropin (CG) receptor (LHCGR; OMIM #52790) gene belongs to the G-protein coupled receptor 1 family.
Ganirelix is a GnRH antagonist used to prevent premature luteinizing hormone surges in women undergoing fertility treatment.
Relevant laboratory investigations were done like fasting and postprandial blood glucose levels, fasting lipid profile, hormone assays like follicle stimulating hormone (FSH), luteinizing hormone (LH), testosterone free and total, dehydroepiandrostenedione (DHEA-S), sex hormone-binding protein, insulin, thyroid stimulating hormone (TSH) and prolactin were done in patients with PCOS on second day of spontaneous menstruation.
Two brothers were azoospermic with follicle stimulating hormone, luteinizing hormone and total testosterone levels within the normal range.
Luteinizing hormone (LH) is a pituitary-derived heterodimeric glycoprotein, consisting of the common [alpha]-subunit with human chorionic gonadotropin, follicle stimulating hormone and thyroid stimulating hormone and a unique [beta]-subunit conferring the biological specificity of LH [3,4].
In females, menstruation and ovulation are triggered by hormones such as oestrogens, luteinizing hormone, progesterone and follicle stimulating hormone.
Surges of the brain's luteinizing hormone, (which is thought to be the cause of hot flashes) typically increase at night.
Reproductive hormones such as luteinizing hormone or estrogen are the best reflection of reproductive status, but the required sample volumes and lack of reference intervals limit their clinical utility.
A set of reagents for the immunoenzymatic determination of the thyroid-stimulating hormone concentration in blood serum (plasma), a set of reagents for the enzyme immunoassay to determine the concentration of free fraction of thyroxine in serum, a set of reagents for the immunoenzymatic determination of the concentration of serum antibodies to thyreperoxidase, a set of reagents for the enzyme immunoassay for determining the concentration of luteinizing hormone in serum, a set of reagents for the immunoenzymatic determination of the concentration of follicle-stimulating hormone in serum
Suppression of follicle stimulating hormone and luteinizing hormone was reported for all subjects in the P400mg group and 12 of 13 subjects in the C400mg group.
These women also had higher levels of serum luteinizing hormone and increased ratios of luteinizing hormone to follicle stimulating hormone.
The luteinizing hormone to follicle-stimulating hormone ratio also appeared to affect the alpha diversity of women with PCOS, as seen in observed sequence variants and Faith's phylogenetic diversity (P = .08).

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