Results 331 to 340 of about 241,755 (405)
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Molecular and Cellular Endocrinology, 1978
A method has been developed for disaggregating porcine anterior pituitary tissue and for providing dissociated preparations which have good, stable viability in culture. The secretory capacity for these preparations in terms of their ability to release luteinizing hormone in response to luteinizing hormone-releasing hormone has been documented in ...
Colin R. Hopkins, Ameae M. Walker
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A method has been developed for disaggregating porcine anterior pituitary tissue and for providing dissociated preparations which have good, stable viability in culture. The secretory capacity for these preparations in terms of their ability to release luteinizing hormone in response to luteinizing hormone-releasing hormone has been documented in ...
Colin R. Hopkins, Ameae M. Walker
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Mechanism of thyrotropin releasing hormone stimulation of pituitary hormone secretion.
Annual Review of Physiology, 1986During the past several years, the mechanism of action of thyrotropin-releasing hormone (TRH; thyroliberin) has been studied intensively in GH cells, cloned rat mammotropic tumor cell lines that appear to be valid models for in vitro study of mammotroph ...
M. Gershengorn
semanticscholar +1 more source
Prolactin Inhibits Pituitary Luteinizing Hormone-Releasing Hormone Receptors in the Rat
Endocrinology, 1982Pituitary LHRH receptors were studied in intact immature and mature female rats as well as in adult castrated animals of both sexes under experimental conditions leading to marked alterations of plasma PRL levels. Implantation of three anterior pituitary glands under the kidney capsule on the morning of estrus prevented the increase in pituitary LHRH ...
MARCHETTI, Bianca Maria, Labrie F.
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Journal of Clinical Endocrinology and Metabolism, 1994
Acromegaly is most often associated with a pituitary somatotroph adenoma. While multiple lines of evidence suggest an intrinsic somatic cell defect in adenoma formation, the role of hypothalamic hormones in pituitary tumorigenesis remains unclear.
S. Ezzat +7 more
semanticscholar +1 more source
Acromegaly is most often associated with a pituitary somatotroph adenoma. While multiple lines of evidence suggest an intrinsic somatic cell defect in adenoma formation, the role of hypothalamic hormones in pituitary tumorigenesis remains unclear.
S. Ezzat +7 more
semanticscholar +1 more source
Hormonal Release by Dispersed Pituitary Cells
Canadian Journal of Physiology and Pharmacology, 1972Dispersed anterior pituitary cells were prepared by treatment of hog pituitaries with collagenase. The cell yield based on DNA recovered in intact cells after collagenase treatment was 5–10%. Ninety percent of the cells appeared intact by phase contrast microscopy. The three major cell types were identifiable by Mallory-Heidenhain staining.
J. Maxwell McKenzie +3 more
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Journal of Endocrinology, 1997
The GH-releasing hormone receptor (GHRH-R) is a critical link between hypothalamic GH-releasing hormone (GHRH) and pituitary GH secretion. However, the factors that regulate GHRH-R are not well understood.
A. Korytko, L. Cuttler
semanticscholar +1 more source
The GH-releasing hormone receptor (GHRH-R) is a critical link between hypothalamic GH-releasing hormone (GHRH) and pituitary GH secretion. However, the factors that regulate GHRH-R are not well understood.
A. Korytko, L. Cuttler
semanticscholar +1 more source
Endocrinology, 1977
The effect of estradiol and thyroid hormone treatment on pituitary TRH binding and TSH and PRL responses to the neurohormone was studied. A significant increase in the number of pituitary TRH binding sites was observed between 2 and 4 days after daily ...
A. Léan +4 more
semanticscholar +1 more source
The effect of estradiol and thyroid hormone treatment on pituitary TRH binding and TSH and PRL responses to the neurohormone was studied. A significant increase in the number of pituitary TRH binding sites was observed between 2 and 4 days after daily ...
A. Léan +4 more
semanticscholar +1 more source
Enkephalins and Pituitary Hormone Release Modification of Responsiveness to LHRH
Hormone Research, 1979An intraperitoneal injection of leucine-enkephalin into rats stimulates gonadotropin and prolactin release. To elucidate the mechanism of this releasing property of leucine-enkephalin, rat hemipituitaries were incubated with either enkephalin alone or enkephalin in combination with OHRH.
N.H. Ertel, J.C. Mittler, P.B. May
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Growth hormone releasing factor increases growth hormone release from MtTW15 pituitary tumors
Brain Research, 1984The MtTW15 pituitary tumor secretes growth hormone and prolactin. Perfusion of these dispersed MtTW15 tumor cells with 10 nM growth hormone releasing factor (GRF) increases growth hormone release without affecting prolactin release. This effect is dose-dependent between 0.001 and 0.1 nM and is blocked by 100 nM somatostatin. These findings suggest that
Robert M. MacLeod, Allan M. Judd
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The role of immunopeptides in the regulation of anterior pituitary hormone release
Trends in Endocrinology & Metabolism, 1990The anterior pituitary lobe secretes hormones that regulate the functioning of the immune system which, in turn, produces thymic hormones and interleukin proteins capable of altering neuroendocrine responsiveness. Interleukin-1 is released during inflammation and activates the hypothalamic-pituitary-adrenal axis, which subsequently diminishes the ...
Bryan L. Spangelo, Robert M. MacLeod
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