Effect of chronic FSH administration on ovarian follicular development, ovulation rate and corpora lutea formation in sheep

KP McNatty, NL Hudson, DA Heath… - Journal of …, 1993 - joe.bioscientifica.com
This study in ewes examined the effects on ovarian function of a pulsatile regimen of ovine
FSH (NIADDK-oFSH-17) administered over a 24-to 28-day period beginning on day 1 of the …

Direct effects of ovine follicular fluid on ovarian steroid secretion and expression of markers of cellular differentiation in sheep

BK Campbell, H Engelhardt, AS McNeilly… - …, 1999 - rep.bioscientifica.com
The objective of this study was to assess the effect of ovine follicular fluid (FF) treatment (with
or without FSH replacement) during the late follicular phase on plasma concentrations of …

FSH causes a time-dependent stimulation of preovulatory follicle growth in the absence of pulsatile LH secretion in ewes chronically treated with gonadotrophin …

HM Picton, CG Tsonis… - journal of Endocrinology, 1990 - joe.bioscientifica.com
The study investigated the relationship between the plasma concentration of FSH and the
stimulation of preovulatory follicle growth in vivo in ewes chronically treated with the …

Effect of follicular fluid and inhibin immunoneutralization on FSH-induced preovulatory follicle growth in the ewe

AS McNeilly, W Crow… - Journal of endocrinology, 1991 - joe.bioscientifica.com
The potential direct ovarian effects of immunoneutralization of inhibin, which increases, and
follicular fluid treatment, which inhibits, follicle development in normal ewes was …

Short-term effects of FSH in vitro on granulosa cells of individual sheep follicles

D Monniaux - Reproduction, 1987 - rep.bioscientifica.com
In Romanov ewes at Day 13 or 14 of the cycle, granulosa cells originating from individual
follicles were studied in short-term incubations for aromatase activity and thymidine …

Effects of suppressing plasma FSH on ovarian follicular dominance in cattle

AM Turzillo, JE Fortune - Reproduction, 1993 - rep.bioscientifica.com
The importance of FSH during development of the dominant follicle of the first wave of
follicular growth in cattle was assessed by injecting heifers twice daily with 20 ml saline (n …

Effect of basal and pulsatile LH release on FSH-stimulated follicle growth in ewes chronically treated with gonadotrophin-releasing hormone agonist

HM Picton, AS McNeilly - Journal of endocrinology, 1991 - joe.bioscientifica.com
Ewes chronically treated with gonadotrophin-releasing hormone (GnRH) agonist were used
to investigate the importance of the peripheral concentration of LH in FSH-stimulated …

Granulosa cells are refractory to FSH action in individuals with a low antral follicle count

D Scheetz, JK Folger, GW Smith… - Reproduction, Fertility …, 2012 - CSIRO Publishing
The reason ovarian function and fertility are diminished in women with a low antral follicle
count (AFC), despite significant numbers of follicles remaining in ovaries, is unknown. The …

The role of inhibin and oestradiol in the control of FSH secretion in the sheep

GE Mann, BK Campbell, AS McNeilly… - Journal of …, 1992 - joe.bioscientifica.com
The relative importance of inhibin and oestradiol in the control of FSH and LH secretion in
the ewe was investigated by passive immunization in intact animals and by hormone …

FSH influences follicle viability, oestradiol biosynthesis and ovulation rate in Romney ewes

KP McNatty, N Hudson, M Gibb, K Ball… - …, 1985 - rep.bioscientifica.com
Injection of steroid-free bovine follicular fluid (bFF; 2× 5 ml sc 12h apart) into anoestrous
ewes lowered plasma FSH concentrations by 70% and after 24 h had significantly (P< 0· 01) …