Results 211 to 220 of about 444,141 (265)

Hypothalamic Paraventricular Nucleus, Oxytocin, and Maternal Aggression in Rats

Annals of the New York Academy of Sciences, 1997
Both 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, M J, Padoin, L P, Cadore, A B, Lucion   +3 more
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Chronic infusion of norepinephrine and clonidine into the hypothalamic paraventricular nucleus

Brain Research Bulletin, 1984
Previous 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, C, Marinescu, S F, Leibowitz   +2 more
openaire   +2 more sources

Presynaptic inputs to vasopressin neurons in the hypothalamic supraoptic nucleus and paraventricular nucleus in mice

Experimental Neurology, 2021
Arginine vasopressin (AVP) neurons in the hypothalamic supraoptic nucleus (SON) and paraventricular nucleus (PVN) are involved in important physiological behaviors, such as controling osmotic stability and thermoregulation. However, the presynaptic input patterns governing AVP neurons have remained poorly understood due to their heterogeneity, as well ...
Hao-Hua, Wei, Xiang-Shan, Yuan, Ze-Ka, Chen, Pei-Pei, Chen, Zhe, Xiang, Wei-Min, Qu, Rui-Xi, Li, Guo-Min, Zhou, Zhi-Li, Huang   +8 more
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The Effects of Propofol on Hypothalamic Paraventricular Nucleus Neurons in the Rat

Anesthesia & Analgesia, 2004
The 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, Yasuhiro, Yoshimura, De-Lai, Qiu, Mayumi, Takasaki   +3 more
openaire   +2 more sources

The modulator role of the hypothalamic paraventricular nucleus on immune responsiveness

Brain, Behavior, and Immunity, 2004
Role 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, Ana, Olariu, Andreea, Hefco, Toshitaka, Nabeshima   +3 more
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Stimulation of the hypothalamic paraventricular nucleus causes systemic venoconstriction

Brain Research, 1993
Venous 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, J R, Haywood, J A, Thornhill   +2 more
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Hypothalamic paraventricular nucleus lesions produce overeating and obesity in the rat.

Physiology & Behavior, 1981
Abstract It has recently been demonstrated that chronic noradrenergic stimulation of the hypothalamic paraventricular nucleus (PVN) or wire knife cuts in the vicinity of the PVN cause hyperphagia and increased body weight. The present study investigates in rats the impact of electrolytic lesions within and around the PVN, on food intake, water intake,
S. Leibowitz, N. J. Hammer, Kevin Chang
semanticscholar   +3 more sources

Leptin depolarizes rat hypothalamic paraventricular nucleus neurons

American Journal of Physiology-Regulatory, Integrative and Comparative Physiology, 1998
Leptin, 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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Evidence for Hypothalamic Paraventricular Nucleus as an Integrative Center of Neuroimmunomodulation

Neuroimmunomodulation, 1998
It has been well documented that the medial parvocellular subnucleus of the hypothalamic paraventricular nucleus (PVN) participates in immune regulation by releasing corticotrophin-releasing hormone (CRH), which triggers the hypothalamus-pituitary-adrenal axis, leading to immunosuppression.
H, Yang, L, Wang, G, Ju
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A second hypothalamic nucleus receiving retinal input in man: the paraventricular nucleus

Brain Research, 1985
A retinofugal projection to the suprachiasmatic nucleus of the hypothalamus has been described in man by means of a newly developed staining technique (PPD) for tracing degenerated fibers in the human brain. We applied the PPD method to the chiasmal/hypothalamic area of human autopsy brains from patients who had incurred prior optic nerve damage.
J D, Schaechter, A A, Sadun
openaire   +2 more sources