Search Results - "I'anson, H"

Central inhibition of gonadotropin-releasing hormone secretion in the growth-restricted hypogonadotropic female sheep by I'Anson, H, Manning, J M, Herbosa, C G, Pelt, J, Friedman, C R, Wood, R I, Bucholtz, D C, Foster, D L

“…Growth retardation induced by dietary restriction results in hypogonadotropism, and thus, puberty is delayed. The present studies determined 1) whether reduced…”
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The nature of the metabolic signal that triggers onset of puberty in female rats by Messer, Neal A., I'Anson, Helen

“…These experiments examined the effects of different refeeding stimuli on reproductive activity as measured by the onset of first estrus in prepubertal,…”
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Prenatal photoperiod and the timing of puberty in the female lamb by Herbosa, C.G, Wood, R.I, I'Anson, H, Foster, D.L

“…In female sheep, photoperiod regulates the timing of the transition to adulthood. We tested the hypothesis that photoperiod very early in development…”
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Adrenal axis and hypogonadotropism in the growth-restricted female lamb by I'Anson, H, Quint, E.H, Wood, R.I, England, B.G, Foster, D.L

“…Growth retardation induced by dietary restriction in the lamb results in a decrease in LH pulse frequency and therefore in delayed puberty. Increased…”
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雌ラットにおけるアロキサン第4脳室内投与がパルス状黄体形成ホルモン分泌に及ぼす影響 by 木下, 美香, I'anson, H, 束村, 博子, 前多, 敬一郎

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The timing of neuroendocrine sexual maturity in the male lamb by photoperiod by Wood, I.R. (The University of Michigan, Ann Arbor, MI), Ebling, F.J.P, I'Anson, H, Foster, D.L

“…In spring-born female lambs, the long days of summer, followed by their gradual decrease, provide the seasonal cue necessary to time puberty to early autumn…”
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Nutrition and reproduction by I'Anson, H, Foster, D L, Foxcroft, G R, Booth, P J

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Prenatal androgens time neuroendocrine sexual maturation by Wood, R I, Ebling, F J, I'Anson, H, Bucholtz, D C, Yellon, S M, Foster, D L

“…The present study determined whether exposure to gonadal steroids in utero dictates the postnatal control of gonadotropin secretion in the lamb. There is a…”
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Pulsatile administration of gonadotropin-releasing hormone does not alter the follicle-stimulating hormone (FSH) isoform distribution pattern of pituitary or circulating FSH in nutritionally growth-restricted ovariectomized lambs by Hassing, J M, Kletter, G B, I'Anson, H, Wood, R I, Beitins, I Z, Foster, D L, Padmanabhan, V

“…The experimental induction of puberty by GnRH administration to prepubertal lambs increases serum bioactive FSH (B-FSH) as measured in the rat Sertoli cell…”
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Changes in LH pulse frequency and serum progesterone concentrations during the transition to breeding season in ewes by I'Anson, H, Legan, S J

“…To characterize the changes in LH pulse frequency during the transition to breeding season, LH pulse patterns and serum progesterone profiles were determined…”
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Progesterone ensures full-length luteal phases during the breeding season in ewes by Legan, S J, I'Anson, H, Neiser, P

“…To test the hypothesis that each luteal-phase increase in the serum concentration of progesterone throughout the breeding season prevents a short luteal phase…”
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Changes in patterns of luteinizing hormone secretion before and after the first ovulation in the postpartum mare by FITZGERALD, B. P, I'ANSON, H, LEGAN, S. J, LOY, R. G

“…To determine whether luteinizing hormone (LH) secretion during the first estrous cycle postpartum is characterized by pulsatile release, circulating LH…”
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Does the first LH surge of the breeding season initiate the first full-length cycle in the ewe? by I'Anson, H, Legan, S J

“…To determine whether the first LH surge of the breeding season initiates a transient rise in progesterone in most ewes, serum progesterone (daily) and LH…”
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Does the seasonal increase in estradiol negative feedback prevent luteinizing hormone surges in anestrous ewes by suppressing hypothalamic gonadotropin-releasing hormone pulse frequency? by LEGAN, S. J, I'ANSON, H, FITZGERALD, B. P, FITZOVICH, D

“…To test the hypothesis that the anestrous increase in estradiol negative feedback prevents estrous cycles by suppressing hypothalamic gonadotropin-releasing…”
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Immunotoxic Destruction of Distinct Catecholaminergic Neuron Populations Disrupts the Reproductive Response to Glucoprivation in Female Rats by I’Anson, Helen, Sundling, Lois A, Roland, Shannon M, Ritter, Sue

“…We tested the hypothesis that hindbrain catecholamine (norepinephrine or epinephrine) neurons, in addition to their essential role in glucoprivic feeding, are…”
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Accelerated rehabilitation after total knee replacement by Isaac, David, Falode, Tunde, Liu, Phong, I'Anson, Helen, Dillow, Katherine, Gill, Paul

“…This study records the length of hospital stay of 50 total knee arthroplasty patients involved in an accelerated postoperative rehabilitation protocol, and a…”
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Importance of short luteal phases in the endocrine mechanism controlling initiation of estrous cycles in anestrous ewes by Legan, S J, I'Anson, H, Fitzgerald, B P, Akaydin, Jr, M S

“…A transient increase in serum progesterone concentrations (to 1 ng/ml for 1-2 days) is observed in the majority of ewes before the first estrous cycle of the…”
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Hypothalamic versus pituitary stimulation of luteinizing hormone secretion in the prepubertal female lamb by I'Anson, H, Herbosa, C G, Ebling, F J, Wood, R I, Bucholtz, D C, Mieher, C D, Foster, D L, Padmanabhan, V

“…Glutamate and aspartate have been hypothesized to function as neurotransmitters in the regulation of the gonadotropin-releasing hormone (GnRH) neurosecretory…”
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Opioid inhibition of luteinizing hormone secretion compared in developing male and female sheep by Wood, R I, I'Anson, H, Ebling, F J, Foster, D L

“…The sheep exhibits a marked sex difference in the timing of the pubertal increase in luteinizing hormone (LH). Male lambs undergo a reduction in sensitivity to…”
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Evidence that changes in LH pulse frequency may regulate the seasonal modulation of LH secretion in ovariectomized mares by Fitzgerald, B P, I'Anson, H, Loy, R G, Legan, S J

“…To determine whether tonic LH secretion in ovariectomized mares is characterized by pulsatile release, frequent blood samples (every 15 min) were collected…”
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