Results 341 to 350 of about 241,755 (405)

Characterization of gonadotropin-releasing hormone receptors in cultured rat pituitary cells.

Endocrinology, 1980
The properties of gonadotropin-releasing hormone (GnRH) receptors were analyzed in isolated pituitary cells prepared by enzymatic dispersion with trypsin or collagenase-hyaluronidase.
Z. Naor, R. Clayton, K. Catt
semanticscholar   +1 more source

Pituitary growth hormone release in gonodal aplasia

The Journal of Pediatrics, 1968
DR. WHITTEN. At the moment, it seems to me that the evidence in support of the sensory deprivation hypothesis is far more vulnerable to the type of criticism you have introduced than are our data which support the nutri t ional deprivation hypothesis. We have gone fur ther in eliminating the possibility of the psychologic factors being misinterpreted ...
S. Nair, M.M. Boschman, O.C. Green
openaire   +2 more sources

Potentiation of Luteinizing Hormone Release by Estradiol at the Level of the Pituitary

Neuroendocrinology, 1975
The objective of this study was to determine the influence of estradiol-17beta and/or progesterone on gonadotropon secretion at the level of the pituitary. Female rats in which the hypothalamo-hypophyseal connections had been permanently interrupted after castration served as the experimental model in which the effect of estradiol and/or progesterone ...
George H. Greeley, Marshall B. Allen, Virendra B. Mahesh   +2 more
openaire   +3 more sources

Effects of Thymosin Alpha-1 on Pituitary Hormone Release

Neuroendocrinology, 1992
The thymosins are a family of hormone-like products of epithelial cells of the thymus which are important in maintenance and function of the immune system. Thymosin fraction 5, a partially purified extract of calf thymus, can influence pituitary hormone release.
L. Milenkovic, Samuel M. McCann
openaire   +2 more sources

Effects of synthetic mammalian thyrotrophin releasing hormone, somatostatin and dopamine on the secretion of prolactin and growth hormone from amphibian and reptilian pituitary glands incubated in vitro.

Journal of Endocrinology, 1984
Pituitary glands of grassfrog (Rana pipiens), bullfrog (Rana catesbeiana), clawed toad (Xenopus laevis) and two species of terrapin (Chrysemys picta and Pseudemys scripta) were incubated in medium containing hypothalamic extract (HE), thyrotrophin ...
T. Hall, A. Chadwick
semanticscholar   +1 more source

Effect of exogenous glucagon on pituitary polypeptide hormone release

Metabolism, 1970
Abstract Anterior pituitary hormone secretion following administration of crystalline glucagon was studied in three phases, i.e., after subcutaneous injection, after intravenous injection, and after intravenous injection during constant glucose infusion.
Roberto M. Hirsch, Roberto M. Hirsch, A.Lloyd Jones, A.Lloyd Jones, Richard L. Eddy, Richard L. Eddy   +5 more
openaire   +3 more sources

Pituitary adenylate cyclase activating polypeptide, growth hormone (GH)-releasing peptide and GH-releasing hormone stimulate GH release through distinct pituitary receptors.

Endocrinology, 1992
GH secretion has been thought traditionally to be regulated by the two hypothalamic hormones, GH-releasing hormone (GHRH) and somatostatin (SRIF). Recent evidence has suggested that other factors may be involved.
M. Góth, C. E. Lyons, B. Canny, M. Thorner   +3 more
semanticscholar   +1 more source

Hypothalamic action of cachectin to alter pituitary hormone release

Brain Research Bulletin, 1989
Cachectin (tumor necrosis factor, TNF) is a macrophage hormone which is released during infection and after injection of bacterial lipopolysaccharides. We have already demonstrated that the peptide has direct action on the pituitary to alter pituitary hormone release in vitro. To evaluate its action in vivo, we injected it into the third ventricle (3V)
Valeria Rettori, Samuel M. McCann, Bruce Beutler, L. Milenkovic   +3 more
openaire   +3 more sources

Growth hormone-releasing hormone transcripts in human pituitary adenomas.

The Journal of Clinical Endocrinology & Metabolism, 1992
We have investigated the possibility that local production of GHRH within the adenohypophysis could be an aetiological factor in the development of human pituitary somatotroph and other tumours. We examined 51 human pituitary adenomas for GHRH transcripts using in situ hybridization histochemistry.
Stafford L. Lightman, Andrew Levy
openaire   +3 more sources

Gonadotropin release by clinically nonfunctioning and gonadotroph pituitary adenomas in vivo and in vitro: relation to sex and effects of thyrotropin-releasing hormone, gonadotropin-releasing hormone, and bromocriptine.

Journal of Clinical Endocrinology and Metabolism, 1989
We studied in vivo hormone levels and in vitro hormone and subunit release in a group of 22 patients who were operated upon because of a clinically nonfunctioning or gonadotroph pituitary adenoma.
D. Kwekkeboom, F. de Jong, S. Lamberts
semanticscholar   +1 more source