Results 161 to 170 of about 27,448 (202)

Role of the paraventricular nucleus microenvironment in stress integration*

European Journal of Neuroscience, 2002
AbstractThe hypothalamic paraventricular nucleus is the primary controller of hypothalamo‐pituitary–adrenocortical glucocorticoid release. In performing this function, the paraventricular nucleus summates a variety of information from both external and internal sources into a net secretory signal to the adrenal cortex.
James P, Herman, William E, Cullinan, Dana R, Ziegler, Jeffrey G, Tasker   +3 more
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Effects of neural stimuli on paraventricular nucleus neurones

Brain Research Bulletin, 1985
The electrical activity of 122 neurones mostly located within the parvocellular components of the hypothalamic paraventricular nucleus (PVN) was recorded in urethane-anaesthetized male rats. Spontaneous activity and responses to single-shock stimulation of the following sites were recorded: median eminence (ME), neurohypophysis (PIT), preoptic area ...
D, Saphier, S, Feldman
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CONTROL OF SYMPATHETIC OUTFLOWS BY THE HYPOTHALAMIC PARAVENTRICULAR NUCLEUS

Clinical and Experimental Pharmacology and Physiology, 1998
SUMMARY1. The functional role of the paraventricular nucleus (PVN) has been examined by studying its connections with cardiovascular neurons in the medulla and spinal cord and its influence on activity in several sympathetic nerves.2. Chemical stimulation of neurons within the PVN can elicit pressor responses and can excite reticulo‐spinal vasomotor ...
J H, Coote, Z, Yang, S, Pyner, J, Deering   +3 more
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Paraventricular nucleus connections to spinal cord and pituitary

Neuroscience Letters, 1978
In rats anesthetized with pentobarbital or a mixture of urethane and chloralose, horseradish peroxidase (HRP) was injected into the intermediolateral column of the spinal cord (Th7 and Th9) or the posterior pituitary lobe. HRP positive cells were found mainly in the dorsomedial part of the paraventricular nuclease (PVN) of the spinal injected animals ...
T, Ono, H, Nishino, K, Sasaka, K, Muramoto, I, Yano, A, Simpson   +5 more
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Proposed role of the paraventricular nucleus in cardiovascular deconditioning

Acta Physiologica Scandinavica, 2002
AbstractAim: Cardiovascular deconditioning occurs in individuals exposed to prolonged spaceflight or bedrest and is associated with the development of orthostatic intolerance. Although the precise mechanisms remain to be fully elucidated, astronauts returning from space or bedrest patients returning to normal upright posture present with decreases in ...
P J, Mueller, J T, Cunningham, K P, Patel, E M, Hasser   +3 more
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Chemical anatomy of the human paraventricular thalamic nucleus

Synapse, 2003
AbstractThe paraventricular thalamic nucleus (Pa) lies in the most medial aspect of the thalamus and is considered one of the midline thalamic nuclei. In the present study, we carried out histochemical and immunohistochemical procedures in the Pa of normal individuals to visualize the pattern of distribution of acetylcholinesterase (AChE), calbindin D ...
Victoria, Uroz, Lucía, Prensa, José Manuel, Giménez-Amaya   +2 more
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Orexin (hypocretin) innervation of the paraventricular nucleus of the thalamus

Brain Research, 2005
The paraventricular nucleus of the thalamus (PVT) is a midline thalamic nucleus with projections to limbic forebrain areas such as the nucleus accumbens and amygdala. The orexin (hypocretin) peptides are synthesized in hypothalamic neurons that project throughout the CNS.
Gilbert J, Kirouac, Matthew P, Parsons, Sa, Li   +2 more
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Norepinephrine in the paraventricular nucleus stimulates corticosterone release

Brain Research, 1989
Hypothalamic cells containing corticotropin-releasing factor are believed to be densely innervated by noradrenergic terminals. However, the role of norepinephrine (NE) in the control of the hypothalamo-pituitary-adrenal axis has remained undefined, with both excitatory and inhibitory effects suggested by the literature.
S F, Leibowitz, S, Diaz, D, Tempel
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ROLE OF THE HYPOTHALAMIC PARAVENTRICULAR NUCLEUS IN CARDIOVASCULAR REGULATION

Clinical and Experimental Pharmacology and Physiology, 1996
SUMMARY1. The paraventricular hypothalamic nucleus (PVH) is a complex structure with both neuroendocrine and autonomic functions. It is a major source of vasopressin and the primary source of corticotropin‐releasing factor. In addition, parvicellular PVH neurons have reciprocal connections with brain‐stem autonomic centres and directly innervate ...
M L, Blair, D, Piekut, A, Want, J A, Olschowka   +3 more
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Electrophysiology of supraoptico-paraventricular nucleus connections in the rat

Experimental Brain Research, 1987
In an attempt to clarify the mechanisms involved during synchronous discharge of magnocellular neurosecretory cells of the supraoptic and paraventricular nuclei, extracellular action potentials were recorded from 149 single units located in the rat paraventricular nucleus. Responses of the cells to stimulation of the ipsilateral supraoptic nucleus were
D, Saphier, S, Feldman
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