Results 241 to 250 of about 42,461 (288)
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Gonadal Steroid Hormone Receptors and Social Behaviors
1989In this chapter, we shall discuss one aspect of the cellular mechanism of action of steroid hormones on social behaviors, the role of steroid hormone receptors. Unfortunately, the study of cellular mechanisms of hormones is not compatible with many social behaviors.
J. D. Blaustein, D. H. Olster
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Counteraction of Gonadal Steroid Inhibition of Luteinizing Hormone Release by Naloxone
Neuroendocrinology, 1982The effect of naloxone on the negative feedback action of gonadal steroids on luteinizing hormone (LH) release was studied in castrated male and female rats. The reduction by estradiol benzoate or testosterone propionate of elevated serum LH levels in rats ovariectomized for 4 weeks was reversed by a single injection of naloxone. Injection of estradiol
D A, Van Vugt +3 more
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Episodic growth hormone secretory patterns in sheep: relationship to gonadal steroid hormones.
American Journal of Physiology-Endocrinology and Metabolism, 1977The influence of anabolic steroids on growth hormone (GH) secretion in ruminants remains unclear, perhaps because of the dynamic nature of GH secretion. In the present study, blood samples were obtained at 15-min intervals for 12 h from intact ram lambs, ram lambs castrated postpubertally, and castrated ram lambs treated with either testosterone ...
S L, Davis +3 more
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Journal of Steroid Biochemistry, 1979
Abstract Plasma and pituitary concentrations of luteinizing hormone (LH) and follicle-stimulating hormone (FSH) were measured in individual male rats pretreated with testosterone and its 5α-reduced metabolites for various lengths of time at various stages of sexual maturation. The degree of androgen induced inhibition of the gonadotropins depended on
D, Gupta, M, Eichner
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Abstract Plasma and pituitary concentrations of luteinizing hormone (LH) and follicle-stimulating hormone (FSH) were measured in individual male rats pretreated with testosterone and its 5α-reduced metabolites for various lengths of time at various stages of sexual maturation. The degree of androgen induced inhibition of the gonadotropins depended on
D, Gupta, M, Eichner
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Identification and biosynthesis of steroid hormones in the gonads ofCiona intestinalis
Experientia, 1971Da 185 g di tessuto testicolare diCiona intestinalis sono stati estratti ed identificati i seguenti ormoni steroidi: deidroepiandrosterone, cortisone e cortisolo. Nel tessuto ovarico e presente il cortisone. Incubando il tessuto testicolare con pregnenolone-7-H3 e progester-one-4-C14 sono stati isolati i seguenti metaboliti: deidroepiandrosterone ...
G, Delrio +3 more
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Hormonal Control of Fish Reproductive Behavior: Brain–Gonadal Steroid Interactions
Canadian Journal of Fisheries and Aquatic Sciences, 1982A number of hormones are known to influence reproductive behavior in teleosts. The best studied in this regard are the sex steroids estradiol and testosterone. Sufficient evidence is available to permit the outlining of possible modes of action of these hormones on mechanisms controlling reproductive responses in fishes. Autoradiographic studies using
L. S. Demski, P. J. Hornby
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Effects of Gonadal Hormones and Contraceptive Steroids on Respiration
1969When the editors assigned me the task of reviewing the effects of gonadal hormones and contraceptive steroids on the pulmonary system, I replied that I was in somewhat of a quandry as to where to begin. Their suggestion was merely that all biological literature be reviewed and any appropriate data pertaining to these steroids and respiration be ...
M. Stein +3 more
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Regulation of astroglia by gonadal steroid hormones under physiological and pathological conditions
Progress in Neurobiology, 2016In the last years there has been a considerable advance in the knowledge on the regulation of astrocytes by sex steroids under physiological and pathological conditions. By the activation of a variety of nuclear and membrane receptors, sex steroid hormones regulate the functions of astrocytes and their communication with other cell types in the central
Estefanía, Acaz-Fonseca +3 more
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In vitro labeling of gonadal steroid hormone receptors in brain tissue sections
Steroids, 1995Autoradiographic methods have been developed for measurement of gonadal steroid receptors in situ in brain tissue sections. Based on principles established previously for estrogen receptors in the rat brain using a 125I-labeled ligand, procedures have been developed for in vitro labeling of estrogen, androgen, and progestin receptors with commercially ...
T J, Brown +5 more
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Methamphetamine–gonadal steroid hormonal interactions:
Neurotoxicology and Teratology, 2002Dean E Dluzen +2 more
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