Induction of reproductive function in anestrous mares using a dopamine antagonist

Advis, 1978, Hyperprolactinemia-induced precocious puberty in the female rat: ovarian site of action, Endocrinology, 103, 924, 10.1210/endo-103-3-924 Advis, 1981, Hyperprolactinemia-induced precocious puberty: studies on the mechanism(s) by which prolactin enhances ovarian progesterone responsiveness to gonadotropins in prepubertal rats, Endocrinology, 108, 1333, 10.1210/endo-108-4-1333 Alexander, 1991, Control of onset of breeding season in the mare and its artificial regulation by progesterone treatment, J Reprod Fertil, 44, 307 Aurich, 1994, Effects of the opioid antagonist naloxone on release of luteinizing hormone in mares during the anovulatory season, J Endocrinol, 142, 139, 10.1677/joe.0.1420139 Beck, 1978, Increased sensitivity of dopaminergic inhibition of luteinizing hormone release in immature and castrated female rats, Endocrinology, 102, 837, 10.1210/endo-102-3-837 Besognet, 1995, Prolactin secretion during the transitional period and the relationship to onset of reproductive function in mares, 459 Clarke, 1993, Prolactin receptor messenger ribonucleic acid expression in the ovary during the rat estrous cycle, Endocrinology, 133, 2594, 10.1210/endo.133.6.8243282 Colborn, 1991, Plasma concentrations of Cortisol, prolactin, luteinizing hormone, and follicle-stimulating hormone in stallions after physical exercise and injection of secretagogue before and after treament in winter, J Anim Sci, 69, 3724, 10.2527/1991.6993724x Curlewis, 1992, Seasonal prolactin secretion and its role in seasonal reproduction: a review, Reprod Fertil Dev, 4, 1, 10.1071/RD9920001 Daels, 1991, Urinary and plasma estrogen conjugates, estradiol and estrone concentrations in nonpregnant and early pregnant mares, Theriogenology, 35, 1001, 10.1016/0093-691X(91)90310-A Dicks, 1994, The role of prolactin in the reactivation of hair follicles in relation to moulting in cashmere goats, J Endocrinol, 143, 441, 10.1677/joe.0.1430441 Donham, 1994, Dissociation of the reproductive and prolactin photoperiodic responses in male golden hamsters, Biol Reprod, 51, 366, 10.1095/biolreprod51.3.366 Fitzgerald, 1994, N-methyl-D-aspartic acid administration to mares: Differential gonadotropin release in steroid-treated long-term ovariectomized mares during the breeding season and effects of ovarian status during seasonal anestrus, Biol Reprod, 50, 110 Fitzgerald, 1987, Changes in LH pulse frequency and amplitude in intact mares during the transition into the breeding season, J Reprod Fertil, 79, 485, 10.1530/jrf.0.0790485 Foster, 1979, Endocrine mechanisms governing the transition into adulthood: a marked decrease in the inhibitory feedback action of estradiol on tonic secretion of luteinizing hormon in the lamb during puberty, Endocrinology, 105, 896, 10.1210/endo-105-4-896 Freedman, 1979, Influence of photoperiod and ovaries on seasonal reproductive activity in mares, Biol Reprod, 20, 567, 10.1095/biolreprod20.3.567 Gayrard, 1994, Estradiol increases tyrosine hydroxylase activity of the A15 nucleus dopaminergic neurons during long days in the ewe, Biol Reprod, 50, 1168, 10.1095/biolreprod50.5.1168 Ginther, 1992 Guerin, 1994, Environmental temperature has an influence on timing of the first ovulation of seasonal estrus in the mare, Theriogenology, 42, 1053, 10.1016/0093-691X(94)90127-5 Hastings, 1989, Differential effects of photoperiodic history on the responses of gonadotrophins and prolactin to intermediate daylengths in the male Syrian hamster, J Biol Rhythms, 4, 335, 10.1177/074873048900400303 Havern, 1991, Hypothalamic sites of catecholamine inhibition of luteinizing hormone in the anestrous ewe, Biol Reprod, 44, 476, 10.1095/biolreprod44.3.476 Havern, 1994, Dopaminergic structures in the ovine hypothalamus mediating estradiol negative feedback in anestrous ewes, Endocrinology, 134, 1905, 10.1210/endo.134.4.7907976 Hines, 1991, Follicle-stimulating hormone pulse amplitude decreases with the onset of the breeding season in mares, Biol Reprod, 44, 516, 10.1095/biolreprod44.3.516 Irvine, 1987, A novel technique for measuring hypothalamic and pituitary hormone secretion rates from collection of pituitary venous effluent in the normal horse, J Endocrinol, 113, 183, 10.1677/joe.0.1130183 Johnson, 1987, Effect of physiologic and pharmacologic agents on serum prolactin concentrations in the non-pregnant mare, J Anim Sci, 65, 1292, 10.2527/jas1987.6551292x Kao, 1992, Different neuroendocrine systems modulate pulsatile luteinizing hormone secretion in photosuppressed and photorefractory ewes, Biol Reprod, 46, 425, 10.1095/biolreprod46.3.425 Kawagoe, 1989, Further evidence that prolactin controls the prepubertal sexual development in the female rat, Gynecologic and Obstetric Investigation, 27, 197, 10.1159/000293655 Kebabian, 1979, Multiple receptors for dopamine, Nature, 277, 93, 10.1038/277093a0 Kermabon, 1994, Effects of anestrus and bromocryptine treatment on the expression of prolactin and LH receptors in the rabbit ovary during lactation, J Reprod Fertil, 102, 131, 10.1530/jrf.0.1020131 Kuljis, 1989, Immunocytochemical and physiological evidence of a synapse between dopamine- and luteinizing hormone releasing hormone-containing neurons in the ewe median eminence, Endocrinology, 124, 1579, 10.1210/endo-124-3-1579 Lacau, 1987, Sexual differences in the dopaminergic control of luteinizing hormone secretion in the developing rat, Dev Brain Res, 35, 91, 10.1016/0165-3806(87)90011-3 Le Corre, 1993, Control of photoperiodic inhibition of luteinizing hormone secretion by dopaminergic and serotoninergic systems in ovariectomized Ile-de-France ewes supplemented with oestradiol, J Reprod Fertil, 97, 367, 10.1530/jrf.0.0970367 Legan, 1977, The endocrine control of seasonal reproductive function in the ewe: a marked change in response to the negative feedback actions of estradiol on luteinizing hormone secretion, Endocrinology, 101, 818, 10.1210/endo-101-3-818 Lincoln, 1990, Correlation with changes in horns and pelage, but not reproduction, of seasonal cycles in the secretion of prolactin in rams of wild, feral and domesticated breeds of sheep, J Reprod Fertil, 90, 285, 10.1530/jrf.0.0900285 McNeil, 1978, Fluorescence-immunocytochemistry: simultaneous localization of catecholamines and gonadotropin-releasing hormone, Science, 200, 72, 10.1126/science.345442 Melrose, 1990, Dopamine in the cerebrospinal fluid of prepubertal and adult horses, Brain Behav Evol, 35, 98, 10.1159/000115859 Meyer, 1985, Neurotransmitters involved in mediating the steroid-dependent suppression of pulsatile luteinizing hormone secretion in anestrous ewes: Effect of receptor antagonists, Endocrinology, 116, 2054, 10.1210/endo-116-5-2054 Meyer, 1986, Separate neural systems mediate the steroid-dependent and steroid-independent suppression of tonic luteinizing hormone secretion in the anestrous ewe, Biol Reprod, 35, 562, 10.1095/biolreprod35.3.562 Munro, 1984, Development of microtitre plate enzyme immunoassay for the determination of progesterone, J Endocrinol, 101, 41, 10.1677/joe.0.1010041 Nequin, 1993, Prolactin may play a role in stimulating the equine ovary during the spring reproductive transition, J Equine Vet Sci, 13, 631, 10.1016/S0737-0806(07)80391-1 O'Conner, 1982, The pharmacology of sulpiride — a dopamine receptor antagonist, Gen Pharmacol, 13, 185, 10.1016/0306-3623(82)90088-X Olin, 1991, Drug Facts and Comparisons, 2561 Palmer, 1992, Photoperiodism in the equine species — what is a long night?, Anim Reprod Sci, 28, 21, 10.1016/0378-4320(92)90087-T Pau, 1982, Effect of frontal hypothalamic deafferenciation on luteinizing hormone secretion and seasonal breeding in the ewe, Biol Reprod, 27, 999, 10.1095/biolreprod27.4.999 Quigley, 1979, Effects of a dopamine antagonist on the release of gonadotropin and prolactin in normal women and women with hyperprolactinemic anovulation, J Clin Endocrinol Metab, 48, 718, 10.1210/jcem-48-4-718 Redmond, 1994, Efficacy of domperidone and sulpiride as treatments for fescue toxicosis in horses, Am J Vet Res, 55, 722 Roser, 1991, Prolonged pulsatile administration of gonadotrophin releasing hormone (GnRH) to fertile stallions, J Reprod Fertil, 44, 155 Sakurai, 1995, Gonadotroph responsiveness in orchidectomized sheep: IV. Effect of estradiol infusion during the breeding and anestrous seasons, Biol Reprod, 52, 382, 10.1095/biolreprod52.2.382 Sarkar, 1981, Gonadotropin-releasing hormone surge: possible modulation through postsynaptic α-adrenoreceptors and two pharmacologically distinct dopamine receptors, Endocrinology, 108, 862, 10.1210/endo-108-3-862 Seki, 1986, Parallelism in the luteinizing hormone responses to opioid and dopamine antagonists in hyperprolactinemic women with pituitary microadenoma, J Clin Endocrinol Metab, 63, 1225, 10.1210/jcem-63-5-1225 Sharp, 1988, Transition into the breeding season: clues to the mechanisms of seasonality, Equine Vet J, 20, 159, 10.1111/j.2042-3306.1988.tb01488.x Sharp, 1991, Effects of steroid administration on pituitary luteinizing hormone and follicle-stimulating hormone in ovariectomized pony mares in the early spring: Pituitary responsiveness to gonadotropin-releasing hormone and pituitary gonadotropin content, Biol Reprod, 44, 983, 10.1095/biolreprod44.6.983 Silvia, 1991, Determinants of attenuated LH-release associated with the first ovulation of the equine breeding season, Dom Anim Endocrinol, 8, 255, 10.1016/0739-7240(91)90061-N Silvia, 1992, Changes in the hypothalamic-hypophyseal axis of mares in relation to the winter solstice, J Reprod Fertil, 96, 195, 10.1530/jrf.0.0960195 Silvia, 1986, Changes in the hypothalamic-hypophyseal axis of mares associated with seasonal reproductive recrudescence, Biol Reprod, 35, 897, 10.1095/biolreprod35.4.897 Sotowska-Brochocka, 1994, Dopaminergic inhibition of gonadotropic release in hibernating frogs, Rana temporaria, Gen Comp Endocrinol, 93, 192, 10.1006/gcen.1994.1022 Stoof, 1984, Two dopamine receptors: biochemistry, physiology and pharmacology, Life Sci, 35, 2281, 10.1016/0024-3205(84)90519-8 Squires, 1993, Puberty, 114 Thompson, 1992, Effect of metoclopramide on luteinizing hormone secretion in postpartum cows, Am J Vet Res, 53, 727 Tucker, 1980, Seasonal aspects of reproduction, growth and hormones in cattle and horses, Prog Reprod Biol, 5, 155 Van Asselt, 1988, Evidence for the involvement of D2 receptors in the dopaminergic inhibition of gonadotropin release in the african catfish, Clarias gariepinus, Aquaculture, 72, 369, 10.1016/0044-8486(88)90225-6 Vivrette, 1979, Interaction of oestradiol and gonadotrophin-releasing hormone on LH release in the mare, J Reprod Fertil, 27, 151 Worthy, 1985, Evidence that the onset of the breeding season in the ewe may be independant of decreasing plasma prolactin concentrations, J Reprod Fertil, 75, 237, 10.1530/jrf.0.0750237