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Influence of reproductive state on pituitary-adrenal activity in the ewe.
Plasma corticosteroid concentrations are altered in pregnancy, during the reproductive cycle and by ovariectomy in many species. This study was designed to examine basal ACTH and cortisol in ewes of… Expand
Comparisons of HIV-1 viral sequences in brain, choroid plexus and spleen: potential role of choroid plexus in the pathogenesis of HIV encephalitis.
Possible mechanisms of HIV transmission to the brain include direct viral infection of cerebral endothelium and hematogeneous dissemination of viral-infected lymphocytes and monocytes. Cerebrospinal… Expand
Role of the sympathetic nervous system in cold-induced hypertension in rats.
Hypertension develops in rats exposed chronically to cold [6 +/- 2 degrees C (SE)] and includes both an elevation of mean arterial pressure and cardiac hypertrophy. Previous studies suggest that… Expand
Modulation of ovine fetal adrenocorticotropin secretion by androstenedione and 17beta-estradiol.
Parturition in sheep is initiated by increases in activity of the fetal hypothalamic-pituitary-adrenal axis. We have previously reported that cortisol negative feedback efficacy is decreased at the… Expand
Arginine vasopressin responses to hypoxia and hypercapnia in late-gestation fetal sheep.
The purpose of this study was to determine the interaction of hypoxia and hypercapnia in the control of arginine vasopressin (AVP) secretion in fetal sheep and to determine the role of the peripheral… Expand
Abnormal Neuroendocrine Responses During Exercise in Heart Transplant Recipients
BackgroundOsmotic and neural factors stimulate neuroendocrine activity during exercise. In contrast to excitatory mechanisms, afferent information from cardiac mechanoreceptors inhibits integrative… Expand
Effect of training on blood volume and plasma hormone concentrations in the elderly.
- J. F. Carroll, V. Convertino, C. Wood, J. Graves, D. Lowenthal, M. Pollock
- Medicine and science in sports and exercise
The purpose of this investigation was to determine the effects of 6 months of endurance training on resting plasma (PV) and blood volume (BV), and resting hormone and electrolyte concentrations in… Expand
Fluid homeostasis after heart transplantation: the role of cardiac denervation.
- R. Braith, R. Mills, +4 authors C. Wood
- The Journal of heart and lung transplantation…
- 1 September 1996
BACKGROUND Orthotopic heart transplantation may interrupt key neural and humoral homeostatic mechanisms that normally adjust Na+ and fluid excretion to changes in intake. Such an interruption could… Expand
Does intracarotid PGE2 increase plasma ACTH concentration in conscious adult ewes?
The hypothesis that prostaglandin E2 (PGE2) is a circulating mediator of adrenocorticotropic hormone (ACTH) secretion in sheep was tested in conscious adult ewes using 30-min carotid artery infusions… Expand
Reflex control of fetal arterial pressure and hormonal responses to slow hemorrhage.
Late-gestation fetal sheep respond to slow hemorrhage with increases in plasma concentrations of adrenocorticotropic hormone (ACTH), hydrocortisone, arginine vasopressin (AVP), and plasma renin… Expand