| luteinizing h. |
a glycoprotein gonadotropin (28,000 daltons) of the adenohypophysis that acts with follicle-stimulating hormone to promote ovulation as well as secretion of androgens and progesterone. It instigates and maintains the second (secretory) portion of the mammalian estrus and menstrual cycle. In females it is concerned with corpus luteum formation and in males it stimulates the development and functional activity of testicular Leydig cells. Called also interstitial cell–stimulating h. and lutropin.
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| luteinizing h.–releasing hormone |
1. a decapeptide hormone elaborated by the median eminence of the hypothalamus that binds to specific receptor sites on gonadotrophs of the adenohypophysis and stimulates the release of follicle-stimulating hormone and luteinizing hormone. High levels continuously maintained desensitize gonadotrophs and terminate gonadotropin release. Long-acting analogs are used to inhibit gonadal steroid secretion in individuals with prostate cancer and some other hormone-responsive cancers. Called also follicle-stimulating hormone–releasing h., gonadotropin-releasing h., gonadoliberin, and luliberin. 2. a preparation of the acetate and hydrochloride salts of this hormone obtained from the brains of certain food animals, used in the differential diagnosis of hypothalamic, pituitary, and gonadal dysfunction and sometimes in treatment of types of male or female infertility or hypogonadism.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| luteinizing hormone s. |
a sharp increase in serum levels of luteinizing hormone seen around the middle of the menstrual cycle about one to two days before ovulation.
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| Lutembacher's c. |
see under syndrome.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| Lutembacher's s. |
atrial septal defect associated with mitral stenosis. Called also Lutembacher's complex.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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