Zobrazeno 1 - 10
of 152
pro vyhledávání: '"K D Dahl"'
Publikováno v:
American Journal of Primatology. 47:165-179
The goal of the present investigation was to determine in the squirrel monkey the source and pattern of inhibin, a hormone known to effect reproductive steroid levels via pituitary and ovarian mechanisms. Since this seasonally polyestrous species is
Publikováno v:
Endocrine. 3:13-20
The effects of corticosterone (B) and testosterone (T) on pituitary and serum bioactive and immunoreactive gonadotropins and on gonadotropin hormone subunit messenger RNA levels were compared in the absence of GnRH. Male rats were implanted with pell
Publikováno v:
Endocrinology. 134:1967-1970
Follistatin is an activin-binding glycoprotein that decreases FSH secretion in vitro and in vivo in rats. The mechanism by which follistatin acts is unclear, but it has been suggested that it may bind endogenous activin and neutralize its effects. In
Publikováno v:
Endocrinology. 134:158-163
Experimental objectives were to determine: 1) if the native glucocorticoid, corticosterone (B), can selectively increase pituitary FSH and FSH beta messenger RNA (mRNA) in the presence or absence of a GnRH signal; and 2) if B affects the biological a
Publikováno v:
Journal of Endocrinology. 130:207-212
In prepubertal rats, removal of one testis (hemicastration) results in increased FSH secretion and a compensatory hypertrophy of the remaining testis. To determine whether these two events are related, testis weight was measured after inhibin-rich po
Publikováno v:
Journal of neuroendocrinology. 7(9)
A technique for sorting live LH- and FSH-secreting cells was developed. After enzymatic dispersion, a suspension of pituitary cells from male rats castrated 7 days earlier was incubated in potassium chloride (KCI 50 mmol/l) for 30 min and gonadotropi
Publikováno v:
Fertility and sterility. 63(2)
To evaluate follicular FSH and LH requirements during suppression of endogenous gonadotropins with the GnRH antagonist Nal-Glu and whether LH-like activity could be supplied by administering subcutaneous hCG.Randomized clinical trial.Thirty-two norma
Publikováno v:
Biology of reproduction. 50(4)
The endocrine or local actions of inhibin-related peptides synthesized by the primate corpus luteum (CL) remain undefined. This in vivo study was designed to determine whether exogenous inhibin or activin modulates pituitary gonadotropin secretion an
Publikováno v:
Journal of andrology. 15(1)
In men, administration of exogenous testosterone (T) exerts direct negative feedback effects at the pituitary as well as at the hypothalamic level. This study was undertaken to determine whether T itself causes the inhibitory effects on the pituitary