Results 281 to 290 of about 139,658 (339)
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Journal of Endocrinology, 1982
The site of action of gonadal hormones in the regulation of hepatic steroid metabolism was investigated by measuring the effects of (i) implantation of estradiol into the pituitary gland or anterior hypothalamus of males and (ii) subcutaneous injection ...
A. Mode, G. Norstedt
semanticscholar +1 more source
The site of action of gonadal hormones in the regulation of hepatic steroid metabolism was investigated by measuring the effects of (i) implantation of estradiol into the pituitary gland or anterior hypothalamus of males and (ii) subcutaneous injection ...
A. Mode, G. Norstedt
semanticscholar +1 more source
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
Joseph Meites +3 more
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General and Comparative Endocrinology, 2001
Steroid hormones play major roles in the organization of the phenotype and in the activation of behavior. From hatching to fledging, they are involved in growth, development, and learning. We investigated the relationship between the ontogenetic patterns
D. Frigerio, E. Moestl, K. Kotrschal
semanticscholar +1 more source
Steroid hormones play major roles in the organization of the phenotype and in the activation of behavior. From hatching to fledging, they are involved in growth, development, and learning. We investigated the relationship between the ontogenetic patterns
D. Frigerio, E. Moestl, K. Kotrschal
semanticscholar +1 more source
Growth hormone, gonad development, and steroid levels in female carp
Comparative Biochemistry and Physiology Part C: Pharmacology, Toxicology and Endocrinology, 1996The pituitary and plasma growth hormone (GH) levels of female carp (Cyprinus carpio L.) were measured in fish of various sizes and degrees of maturity, and were matched against the levels of 17 beta-estradiol (E2), testosterone (T), 17 alpha-hydroxyprogesterone (17-P), and progesterone (P) in the ovary and plasma.
Gad Degani, K. Jackson, R Boker
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Influence of gonadal steroids on rat pituitary growth hormone secretion
Research in Experimental Medicine, 1990Growth hormone (GH) secretion increases at the time of puberty, and both androgens and estrogens increase the GH response to provocative agents. Little is known, however, with regard to the mechanism or site of action of gonadal steroid-stimulated GH secretion.
P. C. Gibson +2 more
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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 ...
T. Yasutake +7 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
M. Eichner, Derek Gupta
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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
M. Eichner, Derek Gupta
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Endocrinology, 1985
We have found, in normal Wistar rats 10-11 weeks old, that the plasma vasopressin concentration (PADH) and the 24-h urinary excretion of vasopressin (UADHV) were higher in males than in females (P less than 0.01).
J. Crofton, P. Baer, L. Share, D. Brooks
semanticscholar +1 more source
We have found, in normal Wistar rats 10-11 weeks old, that the plasma vasopressin concentration (PADH) and the 24-h urinary excretion of vasopressin (UADHV) were higher in males than in females (P less than 0.01).
J. Crofton, P. Baer, L. Share, D. Brooks
semanticscholar +1 more source
Growth hormone binding protein in the rat: effects of gonadal steroids.
Endocrinology, 1993In normal rats, females have higher circulating GH-binding protein (GHBP) levels than males, whereas in the GH-deficient dwarf (Dw) rat, there is no sexual dimorphism in plasma GHBP, suggesting that GH secretion may be involved in this difference. In order to study the relationship between gonadal steroids and GH on GHBP and GH receptor regulation, the
Britt G. Gabrielsson +2 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 ...
Michael J. Walters +5 more
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