Results 161 to 170 of about 20,073 (204)

Thyroid Hormones, Gonadal and Adrenocortical Steroids and the Function of the Islets of Langerhans

Endocrine Reviews, 1984
Thyroid hormones, gonadal and adrenocortical steroids, are glucoregulatory hormones. Thyroid hormones increase the provision of glucose to meet the enhanced energy demands which they impose. Glucose tolerance is decreased, associated with increased hepatic glucose production, although the glucose-raising effects of thyroid hormones are partially offset
S, Lenzen, C J, Bailey
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Counteraction of Gonadal Steroid Inhibition of Luteinizing Hormone Release by Naloxone

Neuroendocrinology, 2008
The 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, P W, Sylvester, C F, Aylsworth, J, Meites   +3 more
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Growth hormone, gonad development, and steroid levels in female carp

Comparative Biochemistry and Physiology Part C: Pharmacology, Toxicology and Endocrinology, 1996
The 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.
G, Degani, R, Boker, K, Jackson
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Influence of gonadal steroids on rat pituitary growth hormone secretion

Research in Experimental Medicine, 1990
Growth 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.
K C, Copeland, M M, DeSouza, P C, Gibson
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Effects of Gonadal Hormones and Contraceptive Steroids on Respiration

1969
When 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, A. Tarabeih, T. Yasutake, T. Hirose   +3 more
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Gonadal Steroid Hormone Receptors and Social Behaviors

1989
In 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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Interactions of gonadal steroids, gonadotropins and gonadotropin-releasing hormones in sexual maturation

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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The Impact of Gonadal Steroid Hormone Action on Growth Hormone Secretion During Childhood and Adolescence*

Endocrine Reviews, 1992
I. Introduction PHYSIOLOGIC regulation of GH secretion has been an active subject of investigation recently. In particular, the interaction with, and independent functions of, the sex steroid hormones and GH have been the subjects of a large number of studies, both in the basic sciences and in the clinical arena.
J R, Kerrigan, A D, Rogol
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Episodic Growth Hormone Secretory Pattern in Male Rats: Relationship to Gonadal Steroid Hormones

Journal of Veterinary Medicine Series A, 1989
SummaryIn the present study sequential blood samples were obtained from freely‐behaving male rats bearing chronic intracardial venous cannulae. Blood samples were obtained at 20 min intervals for 6 h from intact rats, castrated rats, castrated rats treated with either testosterone propionate (TP) or estradiol benzoate (EB) and intact rats treated with ...
H H, Ahmed, M, Fayez, J, Meites
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[Steroid hormone transformation in the gonads and liver of aged rats].

Biological chemistry Hoppe-Seyler, 1988
In order to study some aspects of the steroid hormone balance in old age the following organ functions of young and senescent male and female animals were investigated: 1) The capacity of testicular (45, 68-75 and 900 day-old animals) and ovarian tissue homogenates (29, 45, 66 and 900 day-old animals) to metabolically transform the sex hormone ...
H, Schriefers, S G, Meyer, E, Bergheim, E R, Lax   +3 more
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