Results 221 to 230 of about 334,002 (313)
Some of the next articles are maybe not open access.
Pituitary gonadotropins and autoimmunity
Molecular and Cellular Endocrinology, 2014Autoimmune disease occurs when the body produces an inappropriate immune response against its own tissues producing antibodies, called autoantibodies, reacting to specific antigens. Studies regarding the presence of an autoimmune process specifically involving gonadotropins date from over than 20 years ago, when antibodies to gonadotropic-secreting ...
COCCO, CRISTINA +3 more
openaire +4 more sources
Molecular Biology of the Pituitary Gonadotropins
Endocrine Reviews, 1990Introduction THE pituitary gonadotropins, LH and FSH, play a central role in the mammalian reproductive process. Synthesized in the gonadotropes of the pituitary, the gonadotropins bind to receptors in the gonads leading to effects on steroidogenesis and gametogenesis (Fig. 1).
S D, Gharib +3 more
openaire +3 more sources
Elephant pituitary gonadotropins
General and Comparative Endocrinology, 1990We describe for the first time the purification and some properties of luteinizing hormone (LH) and follicle-stimulating hormone (FSH) isolated from anterior pituitary tissue of the African elephant (Loxodonta africana). Methodology previously applied to equine and donkey pituitaries was used to obtain purified preparations of elephant LH and FSH in ...
J R, McFarlane +3 more
openaire +2 more sources
Postgraduate Medicine, 1969
The methodology of gonadotropin assays has moved steadily during its 35 year evolution toward specificity and greater sensitivity. The three phases of this development are represented by the bioassay of total human pituitary gonadotropins in urine, specific bioassays for follicle-stimulating and luteinizing hormones in urine, and the radioimmunoassay ...
A, Albert, R C, Northcutt
openaire +2 more sources
The methodology of gonadotropin assays has moved steadily during its 35 year evolution toward specificity and greater sensitivity. The three phases of this development are represented by the bioassay of total human pituitary gonadotropins in urine, specific bioassays for follicle-stimulating and luteinizing hormones in urine, and the radioimmunoassay ...
A, Albert, R C, Northcutt
openaire +2 more sources
Pituitary gonadotropins in snakes
General and Comparative Endocrinology, 1979Conventional fractionation procedures used for separation and purification of pituitary FSH and LH in diverse tetrapods were employed to study pituitary gonadotropin (Gn) from five genera of snakes representing three families: Elaphe and Ptyas—Colubridae; Naja and Bungarus—Elapidae; Crotalus—Viperidae.
P, Licht +3 more
openaire +2 more sources
General and Comparative Endocrinology, 2019
Reproduction is regulated by the hypothalamic-pituitary-gonadal (HPG) axis in vertebrates. In addition to wealth of knowledge in mammals, recent studies in non-mammalian species, especially teleosts, have provided evidence that some of the components in ...
S. Kanda
semanticscholar +1 more source
Reproduction is regulated by the hypothalamic-pituitary-gonadal (HPG) axis in vertebrates. In addition to wealth of knowledge in mammals, recent studies in non-mammalian species, especially teleosts, have provided evidence that some of the components in ...
S. Kanda
semanticscholar +1 more source
Pituitary Gonadotropin Responsiveness with Danazol
Fertility and Sterility, 1978Danazol (17alpha-pregn-4-en-20-yno-[2,3-d]isoxazol-17-ol) was administered daily for 4 days to castrated female rats. As previously demonstrated, danazol lowered serum levels of luteinizing hormone (LH) in an apparent dose-dependent fashion. Animals which received danazol in a dose sufficient to lower serum LH responded to administered LH-releasing ...
J M, Shane +4 more
openaire +2 more sources
Journal of Clinical Neuroscience, 2015
Gonadotropin-releasing hormone (GnRH) agonists are widely used in hormone therapy for prostate cancer. We report a patient with pituitary apoplexy following this therapy as a rare complication and review the related literature. A 62-year-old man presented with elevated prostate specific antigen.
Yasuo, Sasagawa +4 more
openaire +2 more sources
Gonadotropin-releasing hormone (GnRH) agonists are widely used in hormone therapy for prostate cancer. We report a patient with pituitary apoplexy following this therapy as a rare complication and review the related literature. A 62-year-old man presented with elevated prostate specific antigen.
Yasuo, Sasagawa +4 more
openaire +2 more sources
Bioassay of Pituitary Gonadotropins
Nature, 1965DURING the course of purification of follicle-stimulating hormone (FSH) and luteinizing hormone (LH) from horse pituitary glands1 the following method was used to determine the degree of separation of FSH and LH at two purification steps. A pH-5 soluble gonadotropic fraction and a purified FSH preparation from the third zone-electrophoresis were ...
openaire +2 more sources
Pituitary Gonadotropin Inhibitory Activity of Danazol
Fertility and Sterility, 1974A steroid danazol (17-alpha-Pregn-4-en-20-yno(23-d)-isoxazol-17-ol) possesses a marked separation of pituitary gonadotropin inhibitory activity from overt sex hormonal activities. The effect of danazol on fertility in the rat was determined. Danazol produced a dose-related decrease in the weights of ventral prostate seminal vesicles and testes of ...
G O, Potts, A L, Beyler, H P, Schane
openaire +2 more sources