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Fred Karsch

This is a preview profile on BiomedExperts - the first literature-based scientific social network. It brings the right researchers together and allows them to collaborate online. Collexis and Dell provide the BiomedExperts network of +1.5 Million pre-calculated profiles free of charge to researchers worldwide.

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Sheep

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Co-Publications
Name
31
Foster, Douglas
21
eVANS, NEIL
19
moenter, Sue
18
Dahl, Geoffrey
16
Breen, Kellie
16
Thrun, LA
15
Padmanabhan, Vasantha
13
Lehman, Michael
12
Viguié, Catherine
10
Battaglia, Deborah
9
Caraty, Alain
9
Tilbrook, Alan
8
Wagenmaker, Elizabeth
6
Billings, Heather
5
Clarke, Iain

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Publications

TOP 3
Oakley Amy E; Breen Kellie M; Tilbrook Alan J; Wagenmaker Elizabeth R; Karsch Fred J
Role of estradiol in cortisol-induced reduction of luteinizing hormone pulse frequency.
Wagenmaker Elizabeth R; Breen Kellie M; Oakley Amy E; Pierce Bree N; Tilbrook Alan J; Turner Anne I; Karsch Fred J
Cortisol interferes with the estradiol-induced surge of luteinizing hormone in the ewe.
Wagenmaker Elizabeth R; Breen Kellie M; Oakley Amy E; Tilbrook Alan J; Karsch Fred J
Psychosocial stress inhibits amplitude of gonadotropin-releasing hormone pulses independent of cortisol action on the type II glucocorticoid receptor.

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All Publications

2009: Oakley Amy E; Breen Kellie M; Tilbrook Alan J; Wagenmaker Elizabeth R; Karsch Fred J
Role of estradiol in cortisol-induced reduction of luteinizing hormone pulse frequency.
Endocrinology 2009;150(6):2775-82.
2009: Wagenmaker Elizabeth R; Breen Kellie M; Oakley Amy E; Pierce Bree N; Tilbrook Alan J; Turner Anne I; Karsch Fred J
Cortisol interferes with the estradiol-induced surge of luteinizing hormone in the ewe.
Biology of reproduction 2009;80(3):458-63.
2009: Wagenmaker Elizabeth R; Breen Kellie M; Oakley Amy E; Tilbrook Alan J; Karsch Fred J
Psychosocial stress inhibits amplitude of gonadotropin-releasing hormone pulses independent of cortisol action on the type II glucocorticoid receptor.
Endocrinology 2009;150(2):762-9.
2009: Oakley Amy E; Breen Kellie M; Clarke Iain J; Karsch Fred J; Wagenmaker Elizabeth R; Tilbrook Alan J
Cortisol reduces gonadotropin-releasing hormone pulse frequency in follicular phase ewes: influence of ovarian steroids.
Endocrinology 2009;150(1):341-9.
2009: Pierce B N; Stackpole C A; Breen K M; Clarke I J; Karsch F J; Rivalland E T A; Turner A I; Caddy D J; Wagenmaker E R; Oakley A E; Tilbrook A J
Estradiol enables cortisol to act directly upon the pituitary to suppress pituitary responsiveness to GnRH in sheep.
Neuroendocrinology 2009;89(1):86-97.
2008: Pierce B N; Hemsworth P H; Rivalland E T A; Wagenmaker E R; Morrissey A D; Papargiris M M; Clarke I J; Karsch F J; Turner A I; Tilbrook A J
Psychosocial stress suppresses attractivity, proceptivity and pulsatile LH secretion in the ewe.
Hormones and behavior 2008;54(3):424-34.
2008: Manikkam Mohan; Thompson Robert C; Herkimer Carol; Welch Kathleen B; Flak Jonathan; Karsch Fred J; Padmanabhan Vasantha
Developmental programming: impact of prenatal testosterone excess on pre- and postnatal gonadotropin regulation in sheep.
Biology of reproduction 2008;78(4):648-60.
2008: Breen Kellie M; Davis Tracy L; Doro Lisa C; Nett Terry M; Oakley Amy E; Padmanabhan Vasantha; Rispoli Louisa A; Wagenmaker Elizabeth R; Karsch Fred J
Insight into the neuroendocrine site and cellular mechanism by which cortisol suppresses pituitary responsiveness to gonadotropin-releasing hormone.
Endocrinology 2008;149(2):767-73.
2007: Breen Kellie M; Oakley Amy E; Pytiak Andrew V; Tilbrook Alan J; Wagenmaker Elizabeth R; Karsch Fred J
Does cortisol acting via the type II glucocorticoid receptor mediate suppression of pulsatile luteinizing hormone secretion in response to psychosocial stress?
Endocrinology 2007;148(4):1882-90.
2006: Stackpole Catherine A; Clarke Iain J; Breen Kellie M; Turner Anne I; Karsch Fred J; Tilbrook Alan J
Sex difference in the suppressive effect of cortisol on pulsatile secretion of luteinizing hormone in sheep.
Endocrinology 2006;147(12):5921-31.
2006: Adams Van L; Goodman Robert L; Salm A K; Coolen Lique M; Karsch Fred J; Lehman Michael N
Morphological plasticity in the neural circuitry responsible for seasonal breeding in the ewe.
Endocrinology 2006;147(10):4843-51.
2006: Breen Kellie M; Karsch Fred J
New insights regarding glucocorticoids, stress and gonadotropin suppression.
Frontiers in neuroendocrinology 2006;27(2):233-45.
2006: Breen Kellie M; Karsch Fred J
Does season alter responsiveness of the reproductive neuroendocrine axis to the suppressive actions of cortisol in ovariectomized ewes?
Biology of reproduction 2006;74(1):41-5.
2005: Breen Kellie M; Billings Heather J; Wagenmaker Elizabeth R; Wessinger Emily W; Karsch Fred J
Endocrine basis for disruptive effects of cortisol on preovulatory events.
Endocrinology 2005;146(4):2107-15.
2004: Breen Kellie M; Stackpole Catherine A; Clarke Iain J; Pytiak Andrew V; Tilbrook Alan J; Wagenmaker Elizabeth R; Young Elizabeth A; Karsch Fred J
Does the type II glucocorticoid receptor mediate cortisol-induced suppression in pituitary responsiveness to gonadotropin-releasing hormone?
Endocrinology 2004;145(6):2739-46.
2004: Breen Kellie M; Karsch Fred J
Does cortisol inhibit pulsatile luteinizing hormone secretion at the hypothalamic or pituitary level?
Endocrinology 2004;145(2):692-8.
2004: Breen Kellie M; Billings Heather J; Debus Nathalie; Karsch Fred J
Endotoxin inhibits the surge secretion of gonadotropin-releasing hormone via a prostaglandin-independent pathway.
Endocrinology 2004;145(1):221-7.
2003: Padmanabhan Vasantha; Brown Morton B; Dahl Geoffrey E; Evans Neil P; Karsch Fred J; Mauger David T; Neill Jimmy D; Van Cleeff Judith
Neuroendocrine control of follicle-stimulating hormone (FSH) secretion: III. Is there a gonadotropin-releasing hormone-independent component of episodic FSH secretion in ovariectomized and luteal phase ewes?
Endocrinology 2003;144(4):1380-92.
2003: Chemineau Philippe; Daveau Agnès; Pelletier Jean; Malpaux Benoît; Karsch Fred J; Viguié Catherine
Changes in the 5-HT2A receptor system in the pre-mammillary hypothalamus of the ewe are related to regulation of LH pulsatile secretion by an endogenous circannual rhythm.
BMC neuroscience 2003;4():1.
2003: Smith R F; Ghuman S P S; Evans N P; Karsch F J; Dobson H
Stress and the control of LH secretion in the ewe.
Reproduction (Cambridge, England) Supplement 2003;61():267-82.
2002: Debus Nathalie; Breen Kellie M; Barrell Graham K; Billings Heather J; Brown Martha; Young Elizabeth A; Karsch Fred J
Does cortisol mediate endotoxin-induced inhibition of pulsatile luteinizing hormone and gonadotropin-releasing hormone secretion?
Endocrinology 2002;143(10):3748-58.
2002: Billings Heather J; Viguié Catherine; Karsch Fred J; Goodman Robert L; Connors John M; Anderson Greg M
Temporal requirements of thyroid hormones for seasonal changes in LH secretion.
Endocrinology 2002;143(7):2618-25.
2002: Karsch Fred J; Battaglia Deborah F; Breen Kellie M; Debus Nathalie; Harris Thomas G
Mechanisms for ovarian cycle disruption by immune/inflammatory stress.
Stress (Amsterdam, Netherlands) 2002;5(2):101-12.
2002: Padmanabhan Vasantha; Battaglia Deborah; Brown Morton B; Karsch Fred J; Lee James S; Pan Wenqin; Phillips David J; Van Cleeff Judith
Neuroendocrine control of follicle-stimulating hormone (FSH) secretion: II. Is follistatin-induced suppression of FSH secretion mediated via changes in activin availability and does it involve changes in gonadotropin-releasing hormone secretion?
Biology of reproduction 2002;66(5):1395-402.
2002: Lehman M N; Coolen L M; Goodman R L; Viguié C; Billings H J; Karsch F J
Seasonal plasticity in the brain: the use of large animal models for neuroanatomical research.
Reproduction (Cambridge, England) Supplement 2002;59():149-65.
2002: Karsch F J; Battaglia D F
Mechanisms for endotoxin-induced disruption of ovarian cyclicity: observations in sheep.
Reproduction (Cambridge, England) Supplement 2002;59():101-13.
2002: Padmanabhan V; Karsch F J; Lee J S
Hypothalamic, pituitary and gonadal regulation of FSH.
Reproduction (Cambridge, England) Supplement 2002;59():67-82.
2001: Williams C Y; Harris T G; Battaglia D F; Viguié C; Karsch F J
Endotoxin inhibits pituitary responsiveness to gonadotropin-releasing hormone.
Endocrinology 2001;142(5):1915-22.
2001: Viguié C; Jansen H T; Glass J D; Watanabe M; Billings H J; Coolen L; Lehman M N; Karsch F J
Potential for polysialylated form of neural cell adhesion molecule-mediated neuroplasticity within the gonadotropin-releasing hormone neurosecretory system of the ewe.
Endocrinology 2001;142(3):1317-24.
2000: Barrell G K; Thrun L A; Brown M E; Viguié C; Karsch F J
Importance of photoperiodic signal quality to entrainment of the circannual reproductive rhythm of the ewe.
Biology of reproduction 2000;63(3):769-74.
2000: Harris T G; Battaglia D F; Brown M E; Brown M B; Carlson N E; Viguié C; Williams C Y; Karsch F J
Prostaglandins mediate the endotoxin-induced suppression of pulsatile gonadotropin-releasing hormone and luteinizing hormone secretion in the ewe.
Endocrinology 2000;141(3):1050-8.
2000: Battaglia D F; Krasa H B; Padmanabhan V; Viguié C; Karsch F J
Endocrine alterations that underlie endotoxin-induced disruption of the follicular phase in ewes.
Biology of reproduction 2000;62(1):45-53.
1999: Battaglia D F; Beaver A B; Harris T G; Tanhehco E; Viguié C; Karsch F J
Endotoxin disrupts the estradiol-induced luteinizing hormone surge: interference with estradiol signal reading, not surge release.
Endocrinology 1999;140(6):2471-9.
1999: Viguié C; Battaglia D F; Krasa H B; Thrun L A; Karsch F J
Thyroid hormones act primarily within the brain to promote the seasonal inhibition of luteinizing hormone secretion in the ewe.
Endocrinology 1999;140(3):1111-7.
1998: Battaglia D F; Brown M E; Krasa H B; Thrun L A; Viguié C; Karsch F J
Systemic challenge with endotoxin stimulates corticotropin-releasing hormone and arginine vasopressin secretion into hypophyseal portal blood: coincidence with gonadotropin-releasing hormone suppression.
Endocrinology 1998;139(10):4175-81.
1998: Caraty A; Fabre-Nys C; Delaleu B; Locatelli A; Bruneau G; Karsch F J; Herbison A
Evidence that the mediobasal hypothalamus is the primary site of action of estradiol in inducing the preovulatory gonadotropin releasing hormone surge in the ewe.
Endocrinology 1998;139(4):1752-60.
1998: Bowen J M; Dahl G E; Evans N P; Thrun L A; Wang Y; Brown M B; Karsch F J
Importance of the gonadotropin-releasing hormone (GnRH) surge for induction of the preovulatory luteinizing hormone surge of the ewe: dose-response relationship and excess of GnRH.
Endocrinology 1998;139(2):588-95.
1998: Van Cleeff J; Karsch F J; Padmanabhan V
Characterization of endocrine events during the periestrous period in sheep after estrous synchronization with controlled internal drug release (CIDR) device.
Domestic animal endocrinology 1998;15(1):23-34.
1997: Evans N P; Dahl G E; Padmanabhan V; Thrun L A; Karsch F J
Estradiol requirements for induction and maintenance of the gonadotropin-releasing hormone surge: implications for neuroendocrine processing of the estradiol signal.
Endocrinology 1997;138(12):5408-14.
1997: Battaglia D F; Bowen J M; Krasa H B; Thrun L A; Viguié C; Karsch F J
Endotoxin inhibits the reproductive neuroendocrine axis while stimulating adrenal steroids: a simultaneous view from hypophyseal portal and peripheral blood.
Endocrinology 1997;138(10):4273-81.
1997: Thrun L A; Dahl G E; Evans N P; Karsch F J
A critical period for thyroid hormone action on seasonal changes in reproductive neuroendocrine function in the ewe.
Endocrinology 1997;138(8):3402-9.
1997: Midgley A R; McFadden K; Ghazzi M; Karsch F J; Brown M B; Mauger D T; Padmanabhan V
Nonclassical secretory dynamics of LH revealed by hypothalamo-hypophyseal portal sampling of sheep.
Endocrine 1997;6(2):133-43.
1997: Thrun L A; Dahl G E; Evans N P; Karsch F J
Effect of thyroidectomy on maintenance of seasonal reproductive suppression in the ewe.
Biology of reproduction 1997;56(4):1035-40.
1997: Sweeney T; Donovan A; Karsch F J; Roche J F; O'Callaghan D
Influence of previous photoperiodic exposure on the reproductive response to a specific photoperiod signal in ewes.
Biology of reproduction 1997;56(4):916-20.
1997: Xiong J J; Karsch F J; Lehman M N
Evidence for seasonal plasticity in the gonadotropin-releasing hormone (GnRH) system of the ewe: changes in synaptic inputs onto GnRH neurons.
Endocrinology 1997;138(3):1240-50.
1997: Karsch F J; Bowen J M; Caraty A; Evans N P; Moenter S M
Gonadotropin-releasing hormone requirements for ovulation.
Biology of reproduction 1997;56(2):303-9.
1997: Padmanabhan V; McFadden K; Mauger D T; Karsch F J; Midgley A R
Neuroendocrine control of follicle-stimulating hormone (FSH) secretion. I. Direct evidence for separate episodic and basal components of FSH secretion.
Endocrinology 1997;138(1):424-32.
1997: Lehman M N; Goodman R L; Karsch F J; Jackson G L; Berriman S J; Jansen H T
The GnRH system of seasonal breeders: anatomy and plasticity.
Brain research bulletin 1997;44(4):445-57.
1996: Evans N P; Dahl G E; Caraty A; Padmanabhan V; Thrun L A; Karsch F J
How much of the gonadotropin-releasing hormone (GnRH) surge is required for generation of the luteinizing hormone surge in the ewe? Duration of the endogenous GnRH signal.
Endocrinology 1996;137(11):4730-7.
1996: Thrun L A; Dahl G E; Evans N P; Karsch F J
Time-course of thyroid hormone involvement in the development of anestrus in the ewe.
Biology of reproduction 1996;55(4):833-7.
1996: Karsch F J; Evans N P
Feedback actions of estradiol on GnRH secretion during the follicular phase of the estrous cycle.
Acta neurobiologiae experimentalis 1996;56(3):715-25.
1995: Evans N P; Dahl G E; Mauger D T; Padmanabhan V; Thrun L A; Karsch F J
Does estradiol induce the preovulatory gonadotropin-releasing hormone (GnRH) surge in the ewe by inducing a progressive change in the mode of operation of the GnRH neurosecretory system.
Endocrinology 1995;136(12):5511-9.
1995: Padmanabhan V; Evans N P; Dahl G E; McFadden K L; Mauger D T; Karsch F J
Evidence for short or ultrashort loop negative feedback of gonadotropin-releasing hormone secretion.
Neuroendocrinology 1995;62(3):248-58.
1995: Caraty A; Antoine C; Delaleu B; Locatelli A; Bouchard P; Gautron J P; Evans N P; Karsch F J; Padmanabhan V
Nature and bioactivity of gonadotropin-releasing hormone (GnRH) secreted during the GnRH surge.
Endocrinology 1995;136(8):3452-60.
1995: Goodman R L; Parfitt D B; Evans N P; Dahl G E; Karsch F J
Endogenous opioid peptides control the amplitude and shape of gonadotropin-releasing hormone pulses in the ewe.
Endocrinology 1995;136(6):2412-20.
1995: Evans N P; Dahl G E; Mauger D; Karsch F J
Estradiol induces both qualitative and quantitative changes in the pattern of gonadotropin-releasing hormone secretion during the presurge period in the ewe.
Endocrinology 1995;136(4):1603-9.
1995: Dahl G E; Evans N P; Thrun L A; Karsch F J
Thyroxine is permissive to seasonal transitions in reproductive neuroendocrine activity in the ewe.
Biology of reproduction 1995;52(3):690-6.
1995: Thrun L A; Moenter S M; O'Callaghan D; Woodfill C J; Karsch F J
Circannual alterations in the circadian rhythm of melatonin secretion.
Journal of biological rhythms 1995;10(1):42-54.
1995: Caraty A; Karsch F J; Herbison A; Bruneau G; Delaleu B; Venier G; Fabre-Nys C
[Neuroendocrine control of ovulation in sheep]
Annales d'endocrinologie 1995;56(5):539-42.
1995: Karsch F J; Dahl G E; Hachigian T M; Thrun L A
Involvement of thyroid hormones in seasonal reproduction.
Journal of reproduction and fertility. Supplement 1995;49():409-22.
1994: Dahl G E; Evans N P; Thrun L A; Karsch F J
A central negative feedback action of thyroid hormones on thyrotropin-releasing hormone secretion.
Endocrinology 1994;135(6):2392-7.
1994: Dahl G E; Evans N P; Moenter S M; Karsch F J
The thyroid gland is required for reproductive neuroendocrine responses to photoperiod in the ewe.
Endocrinology 1994;135(1):10-5.
1994: Woodfill C J; Wayne N L; Moenter S M; Karsch F J
Photoperiodic synchronization of a circannual reproductive rhythm in sheep: identification of season-specific time cues.
Biology of reproduction 1994;50(4):965-76.
1994: Evans N P; Dahl G E; Glover B H; Karsch F J
Central regulation of pulsatile gonadotropin-releasing hormone (GnRH) secretion by estradiol during the period leading up to the preovulatory GnRH surge in the ewe.
Endocrinology 1994;134(4):1806-11.
1993: Karsch F J; Dahl G E; Evans N P; Manning J M; Mayfield K P; Moenter S M; Foster D L
Seasonal changes in gonadotropin-releasing hormone secretion in the ewe: alteration in response to the negative feedback action of estradiol.
Biology of reproduction 1993;49(6):1377-83.
1993: Moenter S M; Caraty A; Lehman M N; Karsch F J
Characterization and regulation of pre-ovulatory secretion of gonadotrophin-releasing hormone.
Human reproduction (Oxford, England) 1993;8 Suppl 2():51-6.
1993: O'Callaghan D; Wendling A; Karsch F J; Roche J F
Effect of exogenous thyroxine on timing of seasonal reproductive transitions in ewes.
Biology of reproduction 1993;49(2):311-5.
1993: Moenter S M; Karsch F J; Lehman M N
Fos expression during the estradiol-induced gonadotropin-releasing hormone (GnRH) surge of the ewe: induction in GnRH and other neurons.
Endocrinology 1993;133(2):896-903.
1993: Lehman M N; Ebling F J; Moenter S M; Karsch F J
Distribution of estrogen receptor-immunoreactive cells in the sheep brain.
Endocrinology 1993;133(2):876-86.
1993: Lehman M N; Karsch F J
Do gonadotropin-releasing hormone, tyrosine hydroxylase-, and beta-endorphin-immunoreactive neurons contain estrogen receptors? A double-label immunocytochemical study in the Suffolk ewe.
Endocrinology 1993;133(2):887-95.
1992: O'Callaghan D; Karsch F J; Boland M P; Hanrahan J P; Roche J F
Variation in the timing of the reproductive season among breeds of sheep in relation to differences in photoperiodic synchronization of an endogenous rhythm.
Journal of reproduction and fertility 1992;96(2):443-52.
1992: Kasa-Vubu J Z; Dahl G E; Evans N P; Thrun L A; Moenter S M; Padmanabhan V; Karsch F J
Progesterone blocks the estradiol-induced gonadotropin discharge in the ewe by inhibiting the surge of gonadotropin-releasing hormone.
Endocrinology 1992;131(1):208-12.
1992: Barrell G K; Moenter S M; Caraty A; Karsch F J
Seasonal changes of gonadotropin-releasing hormone secretion in the ewe.
Biology of reproduction 1992;46(6):1130-5.
1992: Moenter S M; Brand R C; Karsch F J
Dynamics of gonadotropin-releasing hormone (GnRH) secretion during the GnRH surge: insights into the mechanism of GnRH surge induction.
Endocrinology 1992;130(5):2978-84.
1992: Moenter S M; Brand R M; Midgley A R; Karsch F J
Dynamics of gonadotropin-releasing hormone release during a pulse.
Endocrinology 1992;130(1):503-10.
1992: Woodfill C J; Wayne N L; Karsch F J
Does seasonal reproductive state affect the neuroendocrine response of the ewe to a long-day pattern of melatonin?
Journal of biological rhythms 1992;7(1):1-11.
1991: O'Callaghan D; Karsch F J; Boland M P; Roche J F
What photoperiodic signal is provided by a continuous-release melatonin implant?
Biology of reproduction 1991;45(6):927-33.
1991: Webster J R; Moenter S M; Barrell G K; Lehman M N; Karsch F J
Role of the thyroid gland in seasonal reproduction. III. Thyroidectomy blocks seasonal suppression of gonadotropin-releasing hormone secretion in sheep.
Endocrinology 1991;129(3):1635-43.
1991: Moenter S M; Caraty A; Locatelli A; Karsch F J
Pattern of gonadotropin-releasing hormone (GnRH) secretion leading up to ovulation in the ewe: existence of a preovulatory GnRH surge.
Endocrinology 1991;129(3):1175-82.
1991: Ryan K D; Goodman R L; Karsch F J; Legan S J; Foster D L
Patterns of circulating gonadotropins and ovarian steroids during the first periovulatory period in the developing sheep.
Biology of reproduction 1991;45(3):471-7.
1991: Webster J R; Moenter S M; Woodfill C J; Karsch F J
Role of the thyroid gland in seasonal reproduction. II. Thyroxine allows a season-specific suppression of gonadotropin secretion in sheep.
Endocrinology 1991;129(1):176-83.
1991: Woodfill C J; Robinson J E; Malpaux B; Karsch F J
Synchronization of the circannual reproductive rhythm of the ewe by discrete photoperiodic signals.
Biology of reproduction 1991;45(1):110-21.
1991: Schall R E; Ebling F J; Karsch F J; Foster D L
Postpubertal maturation of endogenous opioid regulation of luteinizing hormone secretion in the female sheep.
Biology of reproduction 1991;44(5):760-8.
1991: Moenter S M; Woodfill C J; Karsch F J
Role of the thyroid gland in seasonal reproduction: thyroidectomy blocks seasonal suppression of reproductive neuroendocrine activity in ewes.
Endocrinology 1991;128(3):1337-44.
1991: O'Callaghan D; Karsch F J; Boland M P; Roche J F
Role of short days in timing the onset and duration of reproductive activity in ewes under artificial photoperiods.
Biology of reproduction 1991;44(1):23-8.
1990: Malpaux B; Karsch F J
A role for short days in sustaining seasonal reproductive activity in the ewe.
Journal of reproduction and fertility 1990;90(2):555-62.
1990: Moenter S M; Caraty A; Karsch F J
The estradiol-induced surge of gonadotropin-releasing hormone in the ewe.
Endocrinology 1990;127(3):1375-84.
1990: Ebling F J; Wood R I; Karsch F J; Vannerson L A; Suttie J M; Bucholtz D C; Schall R E; Foster D L
Metabolic interfaces between growth and reproduction. III. Central mechanisms controlling pulsatile luteinizing hormone secretion in the nutritionally growth-limited female lamb.
Endocrinology 1990;126(5):2719-27.
1990: Wayne N L; Malpaux B; Karsch F J
Photoperiodic requirements for timing onset and duration of the breeding season of the ewe: synchronization of an endogenous rhythm of reproduction.
Journal of comparative physiology. A, Sensory, neural, and behavioral physiology 1990;166(6):835-42.
1990: Karsch F J; Moenter S M
Neuroendocrine regulation of seasonal breeding cycles in the ewe.
The Journal of experimental zoology. Supplement : published under auspices of the American Society of Zoologists and the Division of Comparative Physiology and Biochemistry / the Wistar Institute of Anatomy and Biology 1990;4():17-21.
1989: Karsch F J; Robinson J E; Woodfill C J; Brown M B
Circannual cycles of luteinizing hormone and prolactin secretion in ewes during prolonged exposure to a fixed photoperiod: evidence for an endogenous reproductive rhythm.
Biology of reproduction 1989;41(6):1034-46.
1989: Wayne N L; Malpaux B; Karsch F J
Social cues can play a role in timing onset of the breeding season of the ewe.
Journal of reproduction and fertility 1989;87(2):707-13.
1989: Malpaux B; Robinson J E; Wayne N L; Karsch F J
Regulation of the onset of the breeding season of the ewe: importance of long days and of an endogenous reproductive rhythm.
The Journal of endocrinology 1989;122(1):269-78.
1988: Malpaux B; Moenter S M; Wayne N L; Woodfill C J; Karsch F J
Reproductive refractoriness of the ewe to inhibitory photoperiod is not caused by alteration of the circadian secretion of melatonin.
Neuroendocrinology 1988;48(3):264-70.
1988: Malpaux B; Wayne N L; Karsch F J
Termination of the breeding season in the Suffolk ewe: involvement of an endogenous rhythm of reproduction.
Biology of reproduction 1988;39(2):254-63.
1988: Kaynard A H; Malpaux B; Robinson J E; Wayne N L; Karsch F J
Importance of pituitary and neural actions of estradiol in induction of the luteinizing hormone surge in the ewe.
Neuroendocrinology 1988;48(3):296-303.
1988: Kaynard A H; Karsch F J
Hypophyseal actions of pulsatile gonadotropin-releasing hormone in the ewe: development and application of a new experimental model.
Neuroendocrinology 1988;48(3):287-95.
1988: Wayne N L; Malpaux B; Karsch F J
How does melatonin code for day length in the ewe: duration of nocturnal melatonin release or coincidence of melatonin with a light-entrained sensitive period?
Biology of reproduction 1988;39(1):66-75.
1988: Kaynard A H; Follett B K; Karsch F J
Feedback regulation of pulsatile LH secretion in the ewe: stimulation of frequency by estradiol.
Neuroendocrinology 1988;48(1):81-6.
1988: Lehman M N; Karsch F J; Robinson J E; Silverman A J
Ultrastructure and synaptic organization of luteinizing hormone-releasing hormone (LHRH) neurons in the anestrous ewe.
The Journal of comparative neurology 1988;273(4):447-58.
1988: Malpaux B; Robinson J E; Brown M B; Karsch F J
Importance of changing photoperiod and melatonin secretory pattern in determining the length of the breeding season in the Suffolk ewe.
Journal of reproduction and fertility 1988;83(1):461-70.
1988: Lehman M N; Karsch F J; Silverman A J
Potential sites of interaction between catecholamines and LHRH in the sheep brain.
Brain research bulletin 1988;20(1):49-58.
1988: Robinson J E; Karsch F J
Timing the breeding season of the ewe: what is the role of daylength?
Reproduction, nutrition, development 1988;28(2B):365-74.
1988: Karsch F J; Malpaux B; Wayne N L; Robinson J E
Characteristics of the melatonin signal that provide the photoperiodic code for timing seasonal reproduction in the ewe.
Reproduction, nutrition, development 1988;28(2B):459-72.
1987: Malpaux B; Robinson J E; Brown M B; Karsch F J
Reproductive refractoriness of the ewe to inductive photoperiod is not caused by inappropriate secretion of melatonin.
Biology of reproduction 1987;36(5):1333-41.
1987: Karsch F J; Cummins J T; Thomas G B; Clarke I J
Steroid feedback inhibition of pulsatile secretion of gonadotropin-releasing hormone in the ewe.
Biology of reproduction 1987;36(5):1207-18.
1987: Robinson J E; Karsch F J
Photoperiodic history and a changing melatonin pattern can determine the neuroendocrine response of the ewe to daylength.
Journal of reproduction and fertility 1987;80(1):159-65.
1987: Clarke I J; Cummins J T; Karsch F J; Seeburg P H; Nikolics K
GnRH-associated peptide (GAP) is cosecreted with GnRH into the hypophyseal portal blood of ovariectomized sheep.
Biochemical and biophysical research communications 1987;143(2):665-71.
1987: Karsch F J
Central actions of ovarian steroids in the feedback regulation of pulsatile secretion of luteinizing hormone.
Annual review of physiology 1987;49():365-82.
1986: Foster D L; Ryan K D; Goodman R L; Legan S J; Karsch F J; Yellon S M
Delayed puberty in lambs chronically treated with oestradiol.
Journal of reproduction and fertility 1986;78(1):111-7.
1986: Karsch F J; Bittman E L; Robinson J E; Yellon S M; Wayne N L; Olster D H; Kaynard A H
Melatonin and photorefractoriness: loss of response to the melatonin signal leads to seasonal reproductive transitions in the ewe.
Biology of reproduction 1986;34(2):265-74.
1986: Lehman M N; Robinson J E; Karsch F J; Silverman A J
Immunocytochemical localization of luteinizing hormone-releasing hormone (LHRH) pathways in the sheep brain during anestrus and the mid-luteal phase of the estrous cycle.
The Journal of comparative neurology 1986;244(1):19-35.
1986: Robinson J E; Kaynard A H; Karsch F J
Does melatonin alter pituitary responsiveness to gonadotropin-releasing hormone in the ewe?
Neuroendocrinology 1986;43(6):635-40.
1986: Foster D L; Karsch F J; Olster D H; Ryan K D; Yellon S M
Determinants of puberty in a seasonal breeder.
Recent progress in hormone research 1986;42():331-84.
1986: Karsch F J
A role for melatonin as a timekeeping hormone in the ewe.
Journal of neural transmission. Supplementum 1986;21():109-24.
1985: Robinson J E; Radford H M; Karsch F J
Seasonal changes in pulsatile luteinizing hormone (LH) secretion in the ewe: relationship of frequency of LH pulses to day length and response to estradiol negative feedback.
Biology of reproduction 1985;33(2):324-34.
1985: Legan S J; Goodman R L; Ryan K D; Foster D L; Karsch F J
Can the transition into anoestrus in the ewe be accounted for solely by insufficient tonic LH secretion?
The Journal of endocrinology 1985;106(1):55-60.
1985: Robinson J E; Wayne N L; Karsch F J
Refractoriness to inhibitory day lengths initiates the breeding season of the Suffolk ewe.
Biology of reproduction 1985;32(5):1024-30.
1985: Bittman E L; Kaynard A H; Olster D H; Robinson J E; Yellon S M; Karsch F J
Pineal melatonin mediates photoperiodic control of pulsatile luteinizing hormone secretion in the ewe.
Neuroendocrinology 1985;40(5):409-18.
1985: Yellon S M; Bittman E L; Lehman M N; Olster D H; Robinson J E; Karsch F J
Importance of duration of nocturnal melatonin secretion in determining the reproductive response to inductive photoperiod in the ewe.
Biology of reproduction 1985;32(3):523-9.
1984: Robinson J E; Karsch F J
Refractoriness to inductive day lengths terminates the breeding season of the Suffolk ewe.
Biology of reproduction 1984;31(4):656-63.
1984: Bittman E L; Karsch F J
Nightly duration of pineal melatonin secretion determines the reproductive response to inhibitory day length in the ewe.
Biology of reproduction 1984;30(3):585-93.
1984: Landefeld T; Kepa J; Karsch F
Estradiol feedback effects on the alpha-subunit mRNA in the sheep pituitary gland: correlation with serum and pituitary luteinizing hormone concentrations.
Proceedings of the National Academy of Sciences of the United States of America 1984;81(5):1322-6.
1984: Karsch F J; Bittman E L; Foster D L; Goodman R L; Legan S J; Robinson J E
Neuroendocrine basis of seasonal reproduction.
Recent progress in hormone research 1984;40():185-232.
1983: Bittman E L; Dempsey R J; Karsch F J
Pineal melatonin secretion drives the reproductive response to daylength in the ewe.
Endocrinology 1983;113(6):2276-83.
1983: Karsch F J; Foster D L; Bittman E L; Goodman R L
A role for estradiol in enhancing luteinizing hormone pulse frequency during the follicular phase of the estrous cycle of sheep.
Endocrinology 1983;113(4):1333-9.
1983: Legan S J; Karsch F J
Importance of retinal photoreceptors to the photoperiodic control of seasonal breeding in the ewe.
Biology of reproduction 1983;29(2):316-25.
1983: Bittman E L; Karsch F J; Hopkins J W
Role of the pineal gland in ovine photoperiodism: regulation of seasonal breeding and negative feedback effects of estradiol upon luteinizing hormone secretion.
Endocrinology 1983;113(1):329-36.
1983: Landefeld T D; Kepa J; Karsch F J
Regulation of alpha subunit synthesis by gonadal steroid feedback in the sheep anterior pituitary.
The Journal of biological chemistry 1983;258(4):2390-3.
1982: Goodman R L; Bittman E L; Foster D L; Karsch F J
Alterations in the control of luteinizing hormone pulse frequency underlie the seasonal variation in estradiol negative feedback in the ewe.
Biology of reproduction 1982;27(3):580-9.
1982: Schoonmaker J N; Bergman K S; Steiner R A; Karsch F J
Estradiol-induced luteal regression in the rhesus monkey: evidence for an extraovarian site of action.
Endocrinology 1982;110(5):1708-15.
1981: Goodman R L; Bittman E L; Foster D L; Karsch F J
The endocrine basis of the synergistic suppression of luteinizing hormone by estradiol and progesterone.
Endocrinology 1981;109(5):1414-7.
1981: Goodman R L; Reichert L E; Legan S J; Ryan K D; Foster D L; Karsch F J
Role of gonadotropins and progesterone in determining the preovulatory estradiol rise in the ewe.
Biology of reproduction 1981;25(1):134-42.
1981: Schoonmaker J N; Victery W; Karsch F J
A receptive period for estradiol-induced luteolysis in the rhesus monkey.
Endocrinology 1981;108(5):1874-7.
1981: Goodman R L; Legan S J; Ryan K D; Foster D L; Karsch F J
Importance of variations in behavioural and feedback actions of oestradiol to the control of seasonal breeding in the ewe.
The Journal of endocrinology 1981;89(2):229-40.
1981: Goodman R L; Pickover S M; Karsch F J
Ovarian feedback control of follicle-stimulating hormone in the ewe: evidence for selective suppression.
Endocrinology 1981;108(3):772-7.
1981: Goodman R L; Karsch F J
A critique of the evidence on the importance of steroid feedback to seasonal changes in gonadotrophin secretion.
Journal of reproduction and fertility. Supplement 1981;30():1-13.
1980: Karsch F J
Twenty-fifth Annual Bowditch Lecture. Seasonal reproduction: a sage of reversible fertility.
The Physiologist 1980;23(6):29-38.
1980: Legan S J; Karsch F J
Photoperiodic control of seasonal breeding in ewes: modulation of the negative feedback action of estradiol.
Biology of reproduction 1980;23(5):1061-8.
1980: Goodman R L; Karsch F J
Pulsatile secretion of luteinizing hormone: differential suppression by ovarian steroids.
Endocrinology 1980;107(5):1286-90.
1980: Goodman R L; Legan S J; Ryan K D; Foster D L; Karsch F J
Two effects of estradiol that normally contribute to the control of tonic LH secretion in the ewe.
Biology of reproduction 1980;23(2):415-22.
1980: Karsch F J; Legan S J; Ryan K D; Foster D L
Importance of estradiol and progesterone in regulating LH secretion and estrous behavior during the sheep estrous cycle.
Biology of reproduction 1980;23(2):404-13.
1980: Karsch F J; Goodman R L; Legan S J
Feedback basis of seasonal breeding: test of an hypothesis.
Journal of reproduction and fertility 1980;58(2):521-35.
1979: Karsch F J; Foster D L; Legan S J; Ryan K D; Peter G K
Control of the preovulatory endocrine events in the ewe: interrelationship of estradiol, progesterone, and luteinizing hormone.
Endocrinology 1979;105(2):421-6.
1979: Legan S J; Karsch F J
Neuroendocrine regulation of the estrous cycle and seasonal breeding in the ewe.
Biology of reproduction 1979;20(1):74-85.
1977: Legan S J; Karsch F J; Foster D L
The endocrin control of seasonal reproductive function in the ewe: a marked change in response to the negative feedback action of estradiol on luteinizing hormone secretion.
Endocrinology 1977;101(3):818-24.
1977: Hauger R L; Karsch F J; Foster D L
A new concept for control of the estrous cycle of the ewe based on the temporal relationships between luteinizing hormone, estradiol and progesterone in peripheral serum and evidence that progesterone inhibits tonic LH secretion.
Endocrinology 1977;101(3):807-17.
1977: Karsch F J; Legan S J; Hauger R L; Foster D L
Negative feedback action of progesterone on tonic luteinizing hormone secretion in the ewe: dependence on the ovaries.
Endocrinology 1977;101(3):800-6.
1977: Baker B L; Karsch F J; Hoffman D L; Beckman W C
The presence of gonadotropic and thyrotropic cells in the pituitary pars tuberalis of the monkey (Macaca mulatta).
Biology of reproduction 1977;17(2):232-40.
1977: Snabes M C; Kelch R P; Karsch F J
A daily neural signal for luteinizing hormone release in the untreated ovariectomized rat: changes in gonadotropin-releasing hormone content of the preoptic area and hypothalamus throughout the day.
Endocrinology 1977;100(6):1521-5.
1977: Cook B; Karsch F J; Graber J W; Nalbandov A V
Luteolysis in the common opossum, Didelphis marsupialis.
Journal of reproduction and fertility 1977;49(2):399-400.
1976: Foster D L; Karsch F J
Inhibition of tonic secretion of luteinizing hormone by progesterone in immature female sheep.
Endocrinology 1976;99(1):1-6.
1976: Karsch F J; Sutton G P
An intra-ovarian site for the luteolytic action of estrogen in the rhesus monkey.
Endocrinology 1976;98(3):553-61.
1975: Wise P M; Payne A H; Karsch F J; Jaffe R B
Cytoplasmic oestrogen receptor complex of female ovine pituitary: changes associated with the reproductive state and oestradiol treatment.
The Journal of endocrinology 1975;67(3):447-52.
1975: Foster D L; Karsch F J
Development of the mechanism regulating the preovulatory surge of luteinizing hormone in sheep.
Endocrinology 1975;97(5):1205-9.
1975: Karsch F J; Foster D L
Sexual differentiation of the mechanism controlling the preovulatory discharge of luteinizing hormone in sheep.
Endocrinology 1975;97(2):373-9.
1975: Legan S J; Karsch F J
Modulation of pituitary responsiveness to luteinizing hormone-releasing factor during the estrous cycle of the rat.
Endocrinology 1975;96(3):571-5.
1975: Legan S J; Karsch F J
A daily signal for the LH surge in the rat.
Endocrinology 1975;96(1):57-62.
1975: Legan S J; Coon G A; Karsch F J
Role of estrogen as initiator of daily LH surges in the ovariectomized rat.
Endocrinology 1975;96(1):50-6.
1975: Karsch F J; Weick R F; Butler W R; Dierschke D J; Krey L C; Weiss G; Hotchkiss J; Yamaji T; Knobil E
Analysis of the strength-duration characteristics of the estrogen stimulus for the LH surge in the rhesus monkey.
Advances in the biosciences 1975;15():181-6.
1974: Goodman R L; Hotchkiss J; Karsch F J; Knobil E
Diurnal variations in serum testosterone concentrations in the adult male rhesus monkey.
Biology of reproduction 1974;11(5):624-30.
1974: Roche J F; Karsch F J; Foster D L; Dziuk P J
Serum LH in ewes following sequential removal of ovarian follicles, corpora lutea and stroma.
Journal of reproduction and fertility 1974;40(1):215-8.
1974: Cook B; Karsch F J; Foster D L; Nalbandov A V
Estrogen-induced luteolysis in the ewe: possible sites of action.
Endocrinology 1974;94(4):1197-201.
1973: Weick R F; Dierschke D J; Karsch F J; Butler W R; Hotchkiss J; Knobil E
Periovulatory time courses of circulating gonadotropic and ovarian hormones in the rhesus monkey.
Endocrinology 1973;93(5):1140-7.
1973: Weiss G; Dierschke D J; Karsch F J; Hotchkiss J; Butler W R; Knobil E
The influence of lactation on luteal function in the rhesus monkey.
Endocrinology 1973;93(4):954-9.
1973: Karsch F J; Weick R F; Hotchkiss J; Dierschke D J; Knobil E
An analysis of the negative feedback control of gonadotropin secretion utilizing chronic implantation of ovarian steroids in ovariectomized rhesus monkeys.
Endocrinology 1973;93(2):478-86.
1973: Karsch F J; Weick R F; Butler W R; Dierschke D J; Krey L C; Weiss G; Hotchkiss J; Yamaji T; Knobil E
Induced LH surges in the rhesus monkey: strength-duration characteristics of the estrogen stimulus.
Endocrinology 1973;92(6):1740-7.
1973: Dierschke D J; Yamaji T; Karsch F J; Weick R F; Weiss G; Knobil E
Blockade by progesterone of estrogen-induced LH and FSH release in the rhesus monkey.
Endocrinology 1973;92(5):1496-501.
1973: Karsch F J; Krey L C; Weick R F; Dierschke D J; Knobil E
Functional luteolysis in the rhesus monkey; the role of estrogen.
Endocrinology 1973;92(4):1148-52.
1973: Karsch F J; Dierschke D K; Weick R F; Yamaji T; Hotchkiss J; Knobil E
Positive and negative feedback control by estrogen of luteinizing hormone secretion in the rhesus monkey.
Endocrinology 1973;92(3):799-804.
1973: Karsch F J; Dierschke D J; Knobil E
Sexual differentiation of pituitary function: apparent difference bewteen primates and rodents.
Science (New York, N.Y.) 1973;179(72):484-6.
1972: Weick R F; Dierschke D J; Karsch F J; Yamaji T; Knobil E
The refractory period following estrogen-induced LH surges in the rhesus monkey.
Endocrinology 1972;91(6):1528-30.
1972: Foster D L; Karsch F J; Nalbandov A V
Regulation of luteinizing hormone (LH) in the fetal and neonatal lamb. II. Study of placental transfer of LH in the sheep.
Endocrinology 1972;90(2):589-92.
1972: Foster D L; Roach J F; Karsch F J; Norton H W; Cook B; Nalbandov A V
Regulation of luteinizing hormone in the fetal and neonatal lamb. I. LH concentrations in blood and pituitary.
Endocrinology 1972;90(1):102-11.
1971: Karsch F J; Cook B; Ellicott A R; Foster D L; Jackson G L; Nalbandov A V
Failure of infused prolactin to prolong the life span of the corpus luteum of the ewe.
Endocrinology 1971;89(1):272-5.
1971: Karsch F J; Roche J F; Noveroske J W; Foster D L; Norton H W; Nalbandov A V
Prolonged maintenance of the corpus luteum of the ewe by continuous infusion of luteinizing hormone.
Biology of reproduction 1971;4(2):129-36.
1970: Roche J F; Foster D L; Karsch F J; Dziuk P J
Effect of castration and infusion of melatonin on levels of luteinizing hormone in sera and pituitaries of ewes.
Endocrinology 1970;87(6):1205-10.
1970: Karsch F J; Noveroske J W; Roche J F; Norton H W; Nalbandov A V
Maintenance of ovine corpora lutea in the absence of ovarian follicles.
Endocrinology 1970;87(6):1228-36.
1970: Roche J F; Karsch F J; Foster D L; Takagi S; Dziuk P J
Effect of pinealectomy on estrus, ovulation and luteinizing hormone in ewes.
Biology of reproduction 1970;2(2):251-4.
1970: Roche J F; Foster D L; Karsch F J; Cook B; Dziuk P J
Levels of luteinizing hormone in sera and pituitaries of ewes during the estrous cycle and anestrus.
Endocrinology 1970;86(3):568-72.
1967: Karsch F J; Poulton B R
Synchronization of estrus in the guinea pig with 6-alpha-methyl-17-alpha-acetoxyprogesterone and the effect on subsequent fertility.
Journal of animal science 1967;26(3):549-52.

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