Results 181 to 190 of about 406,905 (221)
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Coexistence of neuropeptides in the hypothalamic paraventricular nucleus of the sheep
Neuropeptides, 1990The chemical organization of the hypothalamic paraventricular nucleus (NPV) of the sheep was studied immunocytochemically by using antisera raised against oxytocin (OXY), ovine corticotropin releasing factor (CRF), somatostatin (SRIF), neurotensin (NT) and vasoactive intestinal polypeptide (VIP).
G C, Papadopoulos +3 more
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Alcohol Effects on Paraventricular Hypothalamic Nucleus Morphometry
Cells Tissues Organs, 1995The morphometric effects of postnatal exposure to alcohol on the neurons of the paraventricular hypothalamic nucleus (PVN) have been studied in four different topographic subdivisions of the nucleus: rostral, intermediate medial, intermediate lateral and caudal.
M, Pérez-Delgado +5 more
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Journal of Neuroendocrinology, 1992
AbstractThe brainstem parabrachial nucleus (PBN) is viewed as an increasingly important site for the transfer of autonomic‐related information to more rostral structures in the forebrain including the hypothalamus. In this study, we examined electrophysiologically in vivo and anatomically the nature of PBN input to the hypothalamic paraventricular ...
J H, Jhamandas +3 more
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AbstractThe brainstem parabrachial nucleus (PBN) is viewed as an increasingly important site for the transfer of autonomic‐related information to more rostral structures in the forebrain including the hypothalamus. In this study, we examined electrophysiologically in vivo and anatomically the nature of PBN input to the hypothalamic paraventricular ...
J H, Jhamandas +3 more
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The Effects of Propofol on Hypothalamic Paraventricular Nucleus Neurons in the Rat
Anesthesia & Analgesia, 2004The mechanism of hypotension induced by anesthetics is not completely understood. Because no electrophysiologic examination of the effects of propofol on the central nervous system has shown its involvement in the control of sympathetic and cardiovascular functions, we investigated the actions of propofol on rat hypothalamic paraventricular nucleus ...
Tetsuro, Shirasaka +3 more
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Hypothalamic Paraventricular Nucleus, Oxytocin, and Maternal Aggression in Rats
Annals of the New York Academy of Sciences, 1997Both the lesion of the parvocellular region of the PVN (FIG. 1) and the acute reduction of OT synthesis in that nucleus (FIG. 2) increase maternal aggression in rats. Previous work showed that ibotenic acid as well as the OT antisense in the PVN reduced the level of OT in the brainstem, but not in the pituitary.
M, Giovenardi +3 more
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Chronic infusion of norepinephrine and clonidine into the hypothalamic paraventricular nucleus
Brain Research Bulletin, 1984Previous experiments have shown that acute injection of NE and CLON into the PVN initiates a short-term feeding response in satiated rats. This study examined, in brain-cannulated rats, the impact of remote, chronic injections of NE, CLON, or saline on daily food intake and body weight gain. Over a period of 14 days, NE was infused into the PVN, either
S S, Lichtenstein +2 more
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Stimulation of the hypothalamic paraventricular nucleus causes systemic venoconstriction
Brain Research, 1993Venous capacitance plays an important role in cardiovascular homeostasis. The anatomical loci within the central nervous system involved in modulating venous function remain to be elucidated. Stimulation of the hypothalamic paraventricular nucleus is known to increase sympathoadrenal outflow and arterial blood pressure. The present study was undertaken
D S, Martin +2 more
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Leptin depolarizes rat hypothalamic paraventricular nucleus neurons
American Journal of Physiology-Regulatory, Integrative and Comparative Physiology, 1998Leptin, the protein product of the ob/ obgene, is thought to have a central site of action, presumably within the hypothalamus, through which it regulates feeding behavior. The paraventricular nucleus (PVN) is one structure that has been implicated in regulating feeding behavior.
J E, Powis, J S, Bains, A V, Ferguson
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Glucosensing in parvocellular neurons of the rat hypothalamic paraventricular nucleus
European Journal of Neuroscience, 2011AbstractSpecialized hypothalamic neurons responding to rising extracellular glucose via increases or decreases in their electrical activity [glucose‐excited (GE) and glucose‐inhibited (GI) cells, respectively] have been reported in the hypothalamic arcuate, ventromedial and lateral nuclei.
Igor V, Melnick +2 more
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The modulator role of the hypothalamic paraventricular nucleus on immune responsiveness
Brain, Behavior, and Immunity, 2004Role of the paraventricular nucleus of the hypothalamus (PVH) upon immune modulation was studied by either mechanically destroying the PVH (PVHL) or by isolating the PVH (PVHI) with a knife-cut. PVHL or PVHI manipulations induced significant leukopenia characterized by a decrease in the number of neutrophils and lymphocytes two weeks post surgery.
Vasile, Hefco +3 more
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