نتایج جستجو برای: pvn

تعداد نتایج: 1434  

Introduction: Corticotropin-Releasing Hormone (CRH) is involved in stress and energy homeostasis. On the other hand, CRH receptors also exist within the paraventricular nucleus (PVN) and Central Amygdala (CeA) nuclei. The present study compared the effect of CRH microinjections into PVN and CeA on three consecutive hours and cumulative food intake, internal regulatory factors of food intake, su...

Introduction: The aim of this study was to investigate the effect of angiotensin II (Ang II) and losartan injections into paraventricular nucleus (PVN) on renal ischemia-reperfusion injury. Methods: After right nephrectomy in male rats, a cannula was inserted into the right PVN. One week later, renal ischemia-reperfusion (IR) injury was induced by clamping the left renal artery for 45 min, a...

Journal: :physiology and pharmacology 0
زهرا میرمحمدصادقی zahra mirmohammadsadeghi dept. of physiology, intenational branch of shahid beheshti university of medical sciences, tehran, iran افسانه الیاسی afsaneh elyasi dept. of physiology, medical school, shahid beheshti university of medical sciences, tehran, iran عباس حق پرست abbas haghparast neuroscience research center, shahid beheshti university of medical sciences, tehran, iran

introduction: dopamine plays an important role in the central nervous system for modulating food intake. dopamine receptors are distributed within the hypothalamus, and expression of d1 receptors is significant in hypothalamic paraventricular nucleus (pvn). therefore, the aim of this study was to find if pvn-microinjected skf38393, d1 receptor agonist, may modulate food intake. methods: guide c...

احقری, پریسا , بخشی, عنایت‌اله , رنجبران, مینا , سیفی, بهجت , کدخدایی, مهری , یثربی, بهاره ,

Background: The renal sympathetic nerve activity (RSNA) is enhanced in renal failure. Paraventricular nucleus in hypothalamus is an important central site to regulate sympathetic activity. There are angiotensin II (Ang) II receptors in this nucleus. The aim of this study was to evaluate the effects of angiotensin II in hypothalamic paraventricular nucleus (PVN) on renal ischemia-reperfusion inj...

Abolfazl Akbari, Gholamali Jelodar,

Introduction: Resistin, a complex multimeric structure which is secreted by adipose tissue and circulates in the blood, acts on the hypothalamus to increase sympathetic nerve activity, inhibit appetite and is associated with obesity, insulin resistance and cardiovascular disorders. In this study, we survey the cardiovascular effects of direct injection of resistin into specific cell group of th...

Journal: :Nature Communications 2021

Abstract Both the perivascular niche (PVN) and integration into multicellular networks by tumor microtubes (TMs) have been associated with progression resistance to therapies in glioblastoma, but their specific contribution remained unknown. By long-term tracking of cell fate dynamics live mouse brain, differential therapeutic responses both niches are determined. PVN, a preferential location q...

Journal: :Stress and brain 2022

The hypothalamic paraventricular nucleus (PVN) expresses multiple neuropeptides and plays an essential role in several physiological processes. Among the brain areas directly projecting to PVN are deep structures closely related instinctive behavior. Moreover, neurons can project abundant axons downstream regions key components of stress response. Accordingly, malfunction is implicated stress-r...

Abbas Haghparast, Afsaneh Elyasi, Zahra Mirmohammadsadeghi,

Introduction: Dopamine plays an important role in the central nervous system for modulating food intake. Dopamine receptors are distributed within the hypothalamus, and expression of D1 receptors is significant in hypothalamic paraventricular nucleus (PVN). Therefore, the aim of this study was to find if PVN-microinjected SKF38393, D1 receptor agonist, may modulate food intake. Methods: Gui...

Journal: :Journal of neurophysiology 2010
Qing-Hui Chen Glenn M Toney

The hypothalamic paraventricular nucleus (PVN) and rostral ventrolateral medulla (RVLM) are key components of a neural network that generates and regulates sympathetic nerve activity (SNA). Although each region has been extensively studied, little is presently known about the in vivo discharge properties of individual PVN neurons that directly innervate the RVLM. Here extracellular recording wa...

Journal: :The Journal of comparative neurology 2011
Yvonne M Ulrich-Lai Kenneth R Jones Dana R Ziegler William E Cullinan James P Herman

The hypothalamic paraventricular nucleus (PVN) regulates numerous homeostatic systems and functions largely under the influence of forebrain inputs. Glutamate is a major neurotransmitter in forebrain, and glutamate neurosignaling in the PVN is known to mediate many of its functions. Previous work showed that vesicular glutamate transporters (VGluTs; specific markers for glutamatergic neurons) a...

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