نتایج جستجو برای: paraventricular nucleus
تعداد نتایج: 112523 فیلتر نتایج به سال:
The present study was undertaken to determine whether gamma-aminobutyric acid in the paraventricular nucleus contributes to the regulation of cardiovascular function. Blood pressure and heart rate were recorded and plasma catecholamines were measured in conscious rats receiving microinfusions of either artificial cerebrospinal fluid or a gamma-aminobutyric acid antagonist, bicuculline methiodid...
Neurohumoral activation, a hallmark in heart failure (HF), is linked to the progression and mortality of HF patients. Thus, elucidating its precise underlying mechanisms is of critical importance. Other than its classic peripheral vasodilatory actions, the gas NO is a pivotal neurotransmitter in the central nervous system control of the circulation. While accumulating evidence supports a contri...
We have compared the reptilian dorsomedial thalamic nucleus with the mammalian paraventricular thalamic nucleus from a topographic, chemoarchitectonic, and hodological point of view. Both nuclei are localized to a similar position in the dorsalmost aspect of the dorsal thalamus (midline nuclei). They also are uniformly calretinin-immunoreactive, both their cells and neuropil are strongly immuno...
In rats, some parvocellular paraventricular neurons project to spinal autonomic centers. Using the virus tracing technique, we have demonstrated that magnocellular neurons, but not supraoptic also preganglionic centers of mammary gland, gingiva, or lip. A part these has shown oxytocin immunoreactivity. present experiment, examined whether same neuron sends fibers retina eye projects posterior p...
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Abstract Corticotropin-releasing hormone (CRH) neurons in the paraventricular nucleus of hypothalamus are canonical controllers endocrine response to stress. Here we propose a new role for these cells as gate state transitions that allow organism engage stress-related behaviors. Specifically, review evidence indicating activation at critical times allows organisms move is permissive motor actio...
anxiety is an emotion characterized by an unpleasant manner of inner distress, often accompanied by nervous behavior. anxiety is related to the particular behaviors of fight or flight responses. the amygdala, the insula and anterior cingulate cortex seem to be critical, and all three have been referred to as the fear network .the amygdala which plays a fundamental role in neural network of fear...
Corticotropin-releasing factor (CRF) expressed in the hypothalamus plays an important role in mediating behavioral responses to stressors. Restraining the body of an animal has been shown to activate and induce an enhanced expression of CRF in paraventricular neurons of the rat hypothalamus. Since aggressive biting behavior is known to suppress stress-induced noradrenaline secretion in the cent...
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