Published in Endocrinology on May 01, 1981
Lead, hypertension, and the renin-angiotensin system in rats. J Lab Clin Med (1982) 1.45
Pattern of gonadotropin-releasing hormone (GnRH) secretion leading up to ovulation in the ewe: existence of a preovulatory GnRH surge. Endocrinology (1991) 1.35
Dynamics of gonadotropin-releasing hormone release during a pulse. Endocrinology (1992) 1.35
A daily signal for the LH surge in the rat. Endocrinology (1975) 1.28
The estradiol-induced surge of gonadotropin-releasing hormone in the ewe. Endocrinology (1990) 1.28
Pulsatile secretion of luteinizing hormone: differential suppression by ovarian steroids. Endocrinology (1980) 1.26
Role of estrogen as initiator of daily LH surges in the ovariectomized rat. Endocrinology (1975) 1.24
Thrombosis detection by radionuclide particle (MAA) entrapment: correlation with fibrinogen uptake and venography. Radiology (1974) 1.19
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) 1.15
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) 1.13
In vivo and in vitro effects of lead on vascular reactivity in rats. Am J Physiol (1981) 1.12
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) 1.12
Radioisotope detection of venous thrombosis. Venous scan vs fibrinogen uptake test. Arch Surg (1975) 1.10
Neuroendocrine basis of seasonal reproduction. Recent Prog Horm Res (1984) 1.08
Evidence for short or ultrashort loop negative feedback of gonadotropin-releasing hormone secretion. Neuroendocrinology (1995) 1.06
Dynamics of gonadotropin-releasing hormone (GnRH) secretion during the GnRH surge: insights into the mechanism of GnRH surge induction. Endocrinology (1992) 1.05
Central actions of ovarian steroids in the feedback regulation of pulsatile secretion of luteinizing hormone. Annu Rev Physiol (1987) 1.05
Steroid feedback inhibition of pulsatile secretion of gonadotropin-releasing hormone in the ewe. Biol Reprod (1987) 1.04
Demonstration of thrombophlebitis and endothelial damage by scintiscanning. Radiology (1971) 1.02
Alterations in the control of luteinizing hormone pulse frequency underlie the seasonal variation in estradiol negative feedback in the ewe. Biol Reprod (1982) 1.00
Lead exposure, begun in utero, decreases renin and angiotensin II in adult rats. Proc Soc Exp Biol Med (1982) 1.00
Nature and bioactivity of gonadotropin-releasing hormone (GnRH) secreted during the GnRH surge. Endocrinology (1995) 1.00
Non-metallothionein-bound cadmium in the pathogenesis of cadmium nephrotoxicity in the rat. Toxicol Appl Pharmacol (1989) 0.98
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) 0.97
Endotoxin inhibits the reproductive neuroendocrine axis while stimulating adrenal steroids: a simultaneous view from hypophyseal portal and peripheral blood. Endocrinology (1997) 0.96
Role of the pineal gland in ovine photoperiodism: regulation of seasonal breeding and negative feedback effects of estradiol upon luteinizing hormone secretion. Endocrinology (1983) 0.95
Neuroendocrine control of follicle-stimulating hormone (FSH) secretion. I. Direct evidence for separate episodic and basal components of FSH secretion. Endocrinology (1997) 0.94
Endogenous opioid peptides control the amplitude and shape of gonadotropin-releasing hormone pulses in the ewe. Endocrinology (1995) 0.94
Seasonal changes of gonadotropin-releasing hormone secretion in the ewe. Biol Reprod (1992) 0.94
Estradiol requirements for induction and maintenance of the gonadotropin-releasing hormone surge: implications for neuroendocrine processing of the estradiol signal. Endocrinology (1997) 0.94
Periovulatory time courses of circulating gonadotropic and ovarian hormones in the rhesus monkey. Endocrinology (1973) 0.93
Endocrine alterations that underlie endotoxin-induced disruption of the follicular phase in ewes. Biol Reprod (2000) 0.93
Distribution of estrogen receptor-immunoreactive cells in the sheep brain. Endocrinology (1993) 0.93
Fos expression during the estradiol-induced gonadotropin-releasing hormone (GnRH) surge of the ewe: induction in GnRH and other neurons. Endocrinology (1993) 0.92
An analysis of the negative feedback control of gonadotropin secretion utilizing chronic implantation of ovarian steroids in ovariectomized rhesus monkeys. Endocrinology (1973) 0.92
The endocrine basis of the synergistic suppression of luteinizing hormone by estradiol and progesterone. Endocrinology (1981) 0.92
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) 0.91
Differential effects of the perinatal steroid environment on three sexually dimorphic parameters of the rat brain. Biol Reprod (1985) 0.91
The GnRH system of seasonal breeders: anatomy and plasticity. Brain Res Bull (1997) 0.91
Immunocytochemical localization of luteinizing hormone-releasing hormone (LHRH) pathways in the sheep brain during anestrus and the mid-luteal phase of the estrous cycle. J Comp Neurol (1986) 0.90
Sexual differentiation of the mechanism controlling the preovulatory discharge of luteinizing hormone in sheep. Endocrinology (1975) 0.90
Importance of variations in behavioural and feedback actions of oestradiol to the control of seasonal breeding in the ewe. J Endocrinol (1981) 0.90
Regulation of alpha subunit synthesis by gonadal steroid feedback in the sheep anterior pituitary. J Biol Chem (1983) 0.88
Sexual differentiation of pituitary function: apparent difference bewteen primates and rodents. Science (1973) 0.88
Photoperiodic synchronization of a circannual reproductive rhythm in sheep: identification of season-specific time cues. Biol Reprod (1994) 0.87
Renal handling of lead in dogs: clearance studies. Am J Physiol (1977) 0.87
Endotoxin inhibits pituitary responsiveness to gonadotropin-releasing hormone. Endocrinology (2001) 0.87
Neuroendocrine regulation of the estrous cycle and seasonal breeding in the ewe. Biol Reprod (1979) 0.86
Estradiol induces both qualitative and quantitative changes in the pattern of gonadotropin-releasing hormone secretion during the presurge period in the ewe. Endocrinology (1995) 0.86
Induced LH surges in the rhesus monkey: strength-duration characteristics of the estrogen stimulus. Endocrinology (1973) 0.86
Endotoxin disrupts the estradiol-induced luteinizing hormone surge: interference with estradiol signal reading, not surge release. Endocrinology (1999) 0.85
A critical period for thyroid hormone action on seasonal changes in reproductive neuroendocrine function in the ewe. Endocrinology (1997) 0.85
Nightly duration of pineal melatonin secretion determines the reproductive response to inhibitory day length in the ewe. Biol Reprod (1984) 0.85
Evidence for seasonal plasticity in the gonadotropin-releasing hormone (GnRH) system of the ewe: changes in synaptic inputs onto GnRH neurons. Endocrinology (1997) 0.85
A central negative feedback action of thyroid hormones on thyrotropin-releasing hormone secretion. Endocrinology (1994) 0.84
Metabolic interfaces between growth and reproduction. III. Central mechanisms controlling pulsatile luteinizing hormone secretion in the nutritionally growth-limited female lamb. Endocrinology (1990) 0.84
Control of the preovulatory endocrine events in the ewe: interrelationship of estradiol, progesterone, and luteinizing hormone. Endocrinology (1979) 0.84
Renal handling of lead in dogs: stop-flow analysis. Am J Physiol (1979) 0.84
Nonclassical secretory dynamics of LH revealed by hypothalamo-hypophyseal portal sampling of sheep. Endocrine (1997) 0.84
Characterization of endocrine events during the periestrous period in sheep after estrous synchronization with controlled internal drug release (CIDR) device. Domest Anim Endocrinol (1998) 0.83
Positive and negative feedback control by estrogen of luteinizing hormone secretion in the rhesus monkey. Endocrinology (1973) 0.83
A role for estradiol in enhancing luteinizing hormone pulse frequency during the follicular phase of the estrous cycle of sheep. Endocrinology (1983) 0.83
Progesterone blocks the estradiol-induced gonadotropin discharge in the ewe by inhibiting the surge of gonadotropin-releasing hormone. Endocrinology (1992) 0.83
Seasonal plasticity in the brain: the use of large animal models for neuroanatomical research. Reprod Suppl (2002) 0.83
Psychosocial stress suppresses attractivity, proceptivity and pulsatile LH secretion in the ewe. Horm Behav (2008) 0.83
Hypothalamic, pituitary and gonadal regulation of FSH. Reprod Suppl (2002) 0.83
The thyroid gland is required for reproductive neuroendocrine responses to photoperiod in the ewe. Endocrinology (1994) 0.82
Prostaglandins mediate the endotoxin-induced suppression of pulsatile gonadotropin-releasing hormone and luteinizing hormone secretion in the ewe. Endocrinology (2000) 0.82
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. Biol Reprod (1985) 0.82
Effect of different levels and periods of lead exposure on tissue levels and excretion of lead, zinc, and calcium in the rat. Fundam Appl Toxicol (1987) 0.82
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) 0.82
Determinants of puberty in a seasonal breeder. Recent Prog Horm Res (1986) 0.82
Estradiol enables cortisol to act directly upon the pituitary to suppress pituitary responsiveness to GnRH in sheep. Neuroendocrinology (2008) 0.81
Diurnal variations in serum testosterone concentrations in the adult male rhesus monkey. Biol Reprod (1974) 0.81
Thyroxine is permissive to seasonal transitions in reproductive neuroendocrine activity in the ewe. Biol Reprod (1995) 0.81
Ovarian feedback control of follicle-stimulating hormone in the ewe: evidence for selective suppression. Endocrinology (1981) 0.81
Importance of changing photoperiod and melatonin secretory pattern in determining the length of the breeding season in the Suffolk ewe. J Reprod Fertil (1988) 0.81
Importance of pituitary and neural actions of estradiol in induction of the luteinizing hormone surge in the ewe. Neuroendocrinology (1988) 0.81
Effect of acid-base status on renal excretion and accumulation of lead in dogs and rats. Am J Physiol (1979) 0.81
Importance of photoperiodic signal quality to entrainment of the circannual reproductive rhythm of the ewe. Biol Reprod (2000) 0.81
Two effects of estradiol that normally contribute to the control of tonic LH secretion in the ewe. Biol Reprod (1980) 0.81
Systemic challenge with endotoxin stimulates corticotropin-releasing hormone and arginine vasopressin secretion into hypophyseal portal blood: coincidence with gonadotropin-releasing hormone suppression. Endocrinology (1998) 0.81
Blockade by progesterone of estrogen-induced LH and FSH release in the rhesus monkey. Endocrinology (1973) 0.81
Role of the thyroid gland in seasonal reproduction: thyroidectomy blocks seasonal suppression of reproductive neuroendocrine activity in ewes. Endocrinology (1991) 0.80
Role of the thyroid gland in seasonal reproduction. III. Thyroidectomy blocks seasonal suppression of gonadotropin-releasing hormone secretion in sheep. Endocrinology (1991) 0.80
Ultrastructure and synaptic organization of luteinizing hormone-releasing hormone (LHRH) neurons in the anestrous ewe. J Comp Neurol (1988) 0.80
Pineal melatonin secretion drives the reproductive response to daylength in the ewe. Endocrinology (1983) 0.80
Importance of retinal photoreceptors to the photoperiodic control of seasonal breeding in the ewe. Biol Reprod (1983) 0.80
Importance of estradiol and progesterone in regulating LH secretion and estrous behavior during the sheep estrous cycle. Biol Reprod (1980) 0.79
Reproductive refractoriness of the ewe to inductive photoperiod is not caused by inappropriate secretion of melatonin. Biol Reprod (1987) 0.79
Negative feedback action of progesterone on tonic luteinizing hormone secretion in the ewe: dependence on the ovaries. Endocrinology (1977) 0.79
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) 0.79
Potential for polysialylated form of neural cell adhesion molecule-mediated neuroplasticity within the gonadotropin-releasing hormone neurosecretory system of the ewe. Endocrinology (2001) 0.79
Patterns of circulating gonadotropins and ovarian steroids during the first periovulatory period in the developing sheep. Biol Reprod (1991) 0.79
Development of the mechanism regulating the preovulatory surge of luteinizing hormone in sheep. Endocrinology (1975) 0.78
Maintenance of ovine corpora lutea in the absence of ovarian follicles. Endocrinology (1970) 0.78
Regulation of luteinizing hormone in the fetal and neonatal lamb. I. LH concentrations in blood and pituitary. Endocrinology (1972) 0.78
Thyroid hormones act primarily within the brain to promote the seasonal inhibition of luteinizing hormone secretion in the ewe. Endocrinology (1999) 0.78
Termination of the breeding season in the Suffolk ewe: involvement of an endogenous rhythm of reproduction. Biol Reprod (1988) 0.78
Twenty-fifth Annual Bowditch Lecture. Seasonal reproduction: a sage of reversible fertility. Physiologist (1980) 0.78