Search Results - "Ryan, K.D"

Importance of estradiol and progesterone in regulating LH [luteinizing hormone] secretion and estrous behavior during the sheep estrous cycle by Karsch, F.J, Legan, S.J, Ryan, K.D, Foster, D.L

“…Replacement of the ovaries of sheep shortly after ovulation with Silastic implants that simulated the physiological patterns and levels of estradiol and…”
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Two effects of estradiol that normally contribute to the control of tonic LH [luteinizing hormone] secretion in the ewe by Goodman, R.L, Legan, S.J, Ryan, K.D, Foster, D.L, Karsch, F.J

“…Two effects of estradiol on tonic LH secretion in the ewe were observed when the steroidal milieu of the estrous cycle was reproduced in the absence of the…”
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Endocrine mechanisms governing transition into adulthood: a marked decrease in inhibitory feedback action of estradiol on tonic secretion of luteinizing hormone in the lamb during puberty by Foster, D L, Ryan, K D

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Patterns of circulating gonadotropins and ovarian steroids during the first periovulatory period in the developing sheep by Ryan, K.D. (University of Pittsburgh School of Medicine, Pittsburgh, PA), Goodman, R.L, Karsch, F.J, Legan, S.J, Foster, D.L

“…This report provides evidence that an increment in serum gonadotropin levels occurs at puberty in the sheep and that this reflects the critical hormonal event…”
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Sexual maturation in the female ferret: circumventing the gonadostat by Ryan, K D, Robinson, S L, Tritt, S H, Zeleznik, A J

“…The purpose of this study was to examine the role of circulating 17 beta-estradiol in the regulation of pituitary gonadotropin secretion and, hence, ovarian…”
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Role of gonadotropins and progesterone in determining the preovulatory estradiol rise in the ewe by Goodman, R L, Reichert, Jr, L E, Legan, S J, Ryan, K D, Foster, D L, Karsch, F J

“…The contributions of the follicular phase increase in LH and the decrease in progesterone to the determination of the preovulatory estradiol rise in the ewe…”
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Neuroendocrine mechanisms involved in onset of puberty in the female: concepts derived from the lamb by Ryan, K D, Foster, D L

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