Results 141 to 150 of about 16,781 (179)
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Role of median preoptic area in vasopressin-mediated bradycardia
American Journal of Physiology-Heart and Circulatory Physiology, 1988To determine whether neural traffic through the median preoptic nucleus (MnPO) is involved in arginine vasopressin (AVP)-mediated bradycardia and sympathoinhibition, we recorded reflex decreases in heart rate (HR) and lumbar sympathetic nerve activity, in response to increases in arterial pressure induced either by intravenous phenylephrine (PE) or ...
K P, Patel, P G, Schmid
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The Hypothalamus, the Preoptic Area, and Hypothalamohypophysial Systems
2020The rather small hypothalamus and preoptic area contain a large number of more or less well-defined cell groups that are of utmost importance for preserving the individual and the species. From a developmental point of view, the hypothalamus and preoptic area have different origins but, despite ontogenetical differences, the hypothalamus and preoptic ...
Hans J. ten Donkelaar, Akira Hori
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Medial preoptic area oxytocin and female sexual receptivity.
Behavioral Neuroscience, 1989Intracerebroventricular (icv) administration of the nonapeptide oxytocin (OXT) increases sexual receptivity in female rats. The medial preoptic area (MPOA) appeared to be the most sensitive brain area to the facilitative effects of OXT. Bilateral infusions of 100 ng of OXT into the MPOA significantly elevated lordosis quotients in ovariectomized (OVX),
J D, Caldwell +3 more
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Forebrain activation of single units in preoptic area of sunfish
Comparative Biochemistry and Physiology Part A: Physiology, 1971Abstract 1. 1. Single unit activity from presumed parvocellular elements in the preoptic area of sunfish in response to stimulation of a variety of forebrain areas at low frequencies, less than 5/sec, showed an augmentation from a single spike to three or four over a 3- to 4-min interval. 2. 2. Correlations were drawn between neural responses
R A, Hallowitz +2 more
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Estrogen Regulation of GABA Transmission in Rat Preoptic Area
Brain Research Bulletin, 1997The medial preoptic area represents a brain region where gonadal steroids act upon classical nuclear receptors to alter brain function. Of all the neuronal phenotypes shown to express estrogen receptors in the preoptic area, GABA neurones are the most abundant and known to be located in several nuclei of the medial preoptic area.
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Neurosecretory Nuclei of the Hypothalamus and Preoptic Area
2012The hypothalamus contains two distinct neurosecretory systems: the magnocellular system and the parvicellular system. The magnocellular system manufactures oxytocin and vasopressin for release by the posterior pituitary, and the parvicellular system manufactures hormones which control the release of many anterior pituitary hormones, via the pituitary ...
Watson, Charles, Qi, Yue
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Organization of diencephalon of the sturgeons. Preoptic area
Journal of Evolutionary Biochemistry and Physiology, 2006Cytoarchitectonics of preoptic area of diencephalon of chondroid ganoid fish (the sturgeons) was studied in serial sections using Nissl and Bilschowski techniques, the latter in Viktorov’s modification). The preoptic area of the hausen, Huso huso L., Kura sturgeon, Acipenser guldenstaedtii persicus n.
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Preoptic hypnogenic area and reticular activating system.
Archives italiennes de biologie, 2008The stimulation, in the encéphale isolé cat, of the basal preoptic hypnogenic area be brief electrical pulses evokes bilaterally an extracellular positive (P) field potential of 20 to 60 msec duration in the brain stem and thalamic activating ascending reticular system.
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Female erectile tissues and sexual dysfunction after pelvic radiotherapy: A scoping review
Ca-A Cancer Journal for Clinicians, 2022Deborah C Marshall, Mas +2 more
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