Browsing Research in Reproduction and Contraception, Center for by Title
Now showing items 45-64 of 220
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Ectopic galanin expression and normal galanin receptor 2 and galanin receptor 3 mRNA levels in the forebrain of galanin transgenic mice
(Elsevier, 2005)The functional interactions of the neuropeptide galanin (GAL) occur through its binding to three G protein-coupled receptor subtypes: galanin receptor (GALR) 1, GALR2 and GALR3. Previously, we demonstrated ... -
Effect of CGS 20267 on ovarian aromatase and gonadotropin levels in the rat
(Springer Verlag, 1998-03)Aromatase catalyzes the rate limiting step that converts androgens to estrogens. Postmenopausal women with hormone dependent breast cancer respond to first generation aromatase inhibitors such as aminoglutethimide ... -
Effect of fasting, refeeding, and dietary fat restriction on plasma leptin levels
(Endocrine Society, 1997-02)The factors responsible for the variability in plasma leptin levels observed among individuals with similar body compositions remain unclear. To examine the impact of dietary variables, we compared the changes ... -
The effect of luteinizing hormone-releasing hormone in hypogonadotrophic eunuchoidism
(Periodica, 1977-09) -
The effect of testicular x-irradiation on spermatogenesis in man. A comparison with the mouse
(American Society of Andrology, 1983-11)Existing data concerning the effects of x-irradiation on spermatogenesis in man were analyzed and the results were compared to published data on the mouse. Testicular x-irradiation produced a transient, but ... -
The effects of aging in normal men on bioavailable testosterone and luteinizing hormone secretion: response to clomiphene citrate
(Endocrine Society, 1987-12)Serum testosterone (T) levels in men decline with age while serum LH levels, as measured by RIA, increase. To assess if the decline in serum T levels in healthy aging men is paralleled by an age-related decline ... -
Effects of aging on menstrual cycle hormones and endometrial maturation
(Elsevier, 1995-09)OBJECTIVE: To investigate changes in menstrual cycle hormones and endometrial maturation that may contribute to the decline in fertility with aging. DESIGN: Prospective controlled clinical study. SETTING: ... -
Effects of castration and recombinant human inhibin administration on circulating levels of inhibin and gonadotropins in adult male monkeys
(American Society of Andrology, 1994-03)Inhibin has been suggested to play a role in gonadal feedback regulation of follicle-stimulating hormone (FSH) secretion; however, neither the half-life nor the time course of action of recombinant inhibin ... -
Effects of endogenous testosterone and estradiol on sexual behavior in normal young men
(Endocrine Society, 1994-03)The importance of androgens in establishing and maintaining sexual function in males of most species is well recognized. Estrogens also stimulate male sexual function in some species. In men, most studies ... -
The effects of inducing a follicular phase gonadotropin secretory pattern in normal women during the luteal phase
(Elsevier, 1987-01)It has been hypothesized that the slowing of the luteinizing hormone (LH) pulse frequency in the luteal phase may be necessary for the demise of the corpus luteum, the intercycle rise in baseline follicle-s ... -
The effects of normal aging on the response of the pituitary-gonadal axis to chronic clomiphene administration in men
(American Society of Andrology, 1991-07)Serum androgens decline with age in normal men, despite normal or elevated bioactive serum gonadotropins, suggesting that primary testicular dysfunction occurs with aging. The authors further assessed the ... -
Elevated serum follicle-stimulating hormone levels in men with normal seminal fluid analyses
(Elsevier, 1983-03)Three men who volunteered as normal subjects were found to have abnormally high levels of serum follicle-stimulating hormone (FSH) despite having normal seminal fluid analyses and fertility. Two of the men ... -
Endocrine correlates of sexual development in the male monkey, Macaca fascicularis
(Endocrine Society, 1981-09) -
Every sperm is sacred--or is it?
(Nature Publishing Group, 1998-03) -
Evidence for activation of the central nervous system-pituitary mechanism for gonadotropin secretion at the time of puberty in the male rat
(Endocrine Society, 1986-07)During sexual development in the male rat, serum testosterone (T) levels increase markedly at 45-60 days of age. At the time of the pubertal rise in T levels, activation of the hypothalamic-pituitary axis is ... -
Evidence for decreased luteinizing hormone-releasing hormone pulse frequency in men with selective elevations of follicle-stimulating hormone
(Endocrine Society, 1985-01)To examine the hypothesis that the frequency of endogenous pulsatile LHRH stimulation controls the relative secretion of FSH and LH from the pituitary, we studied men with elevated FSH levels and normal LH ... -
Exogenous testosterone (T) alone or with finasteride increases physical performance, grip strength, and lean body mass in older men with low serum T
(Endocrine Society, 2005-03)Testosterone (T) therapy in older men with low serum T levels increases lean body mass and decreases fat mass. These changes might improve physical performance and strength; however, it has not been established ... -
Exogenous testosterone or testosterone with finasteride increases bone mineral density in older men with low serum testosterone
(Endocrine Society, 2004-02)Older men, particularly those with low serum testosterone (T) levels, might benefit from T therapy to improve bone mineral density (BMD) and reduce fracture risk. Concerns exist, however, about the impact of ... -
Expression and sexual dimorphism of galanin messenger ribonucleic acid in growth hormone-releasing hormone neurons of the rat during development
(Endocrine Society, 1994-02)In the rat, the secretion of GH is episodic and sexually dimorphic. The development and regulation of this patterning of GH secretion are governed by the reciprocal influence of the hypothalamic peptide ... -
Fanconi anemia complementation group C is required for proliferation of murine primordial germ cells
(Wiley-Liss, 2000-07)Fanconi anemia is a polygenic trait hypothesized to be a DNA damage repair disease. We show that all three Fanconi anemia loci that have been cloned are expressed in the embryonic gonad during the period of ...