نتایج جستجو برای: cuneiformis nucleus (cnf)
تعداد نتایج: 114052 فیلتر نتایج به سال:
Effect of GABAB Agonist and Antagonist Microinjection into Cuneiformis Nucleus (CNF) on Morphine Induced Antinociception by Formalin Test in Rat M. RezvanipourPhD , V. Sheibani PhD , M. Bakhshesh MSc Received: 21/05/06 Sent for Revision: 25/06/06 Received Revised Manuscript: 11/12/06 Accepted: 27/01/07 Background and Objective: There are several evidences that show cuneiformis nucleus is involv...
the present study was performed to evaluate the analgesic effect of morphine microinjection into the cuneiformis nucleus (cnf) and the effect of inactivation of this area by lidocaine on pain modulation. rats were anaesthetized by thiopental (45-60 mg/kg/i.p.) and placed in a stereotaxic instrument, and then a guide cannula was implanted just one mm above the cnf. following surgery and recovery...
abstractprevious studies have shown the role of opioid receptors located in the nucleus cuneiformis (cnf) in acute pain, but not in chronic pain models. in the present study, we have determined that possible effects of these receptors at the cnf on both early and late phases of formalin test following local and systemic morphine administration. each rat was given a subcutaneous 50-μl injection ...
The present study was performed to evaluate the analgesic effect of morphine microinjection into the cuneiformis nucleus (CnF) and the effect of inactivation of this area by lidocaine on pain modulation. Rats were anaesthetized by thiopental (45-60 mg/kg/i.p.) and placed in a stereotaxic instrument, and then a guide cannula was implanted just one mm above the CnF. Following surgery and recovery...
ABSTRACTPrevious studies have shown the role of opioid receptors located in the nucleus cuneiformis (CnF) in acute pain, but not in chronic pain models. In the present study, we have determined that possible effects of these receptors at the CnF on both early and late phases of formalin test following local and systemic morphine administration. Each rat was given a subcutaneous 50-μl injection ...
Introduction: Although formalin-induced activity in primary afferent fibers and spinal dorsal horn is well described, the midbrain neural basis underlying each phase of behavior in formalin test has not been clarified. The present study was designed to investigate the nucleus cuneiformis (CnF) neuronal responses during two phases after subcutaneous injection of formalin into the hind paw...
Background and Aim: The cuneiformis nucleus (CnF), which rest in the ventrolateral portion of the periaqueductal gray matter, has opioid receptors that may modulate acute pain. The present study was conducted to evaluate the role of morphine injection into the area of rat’s brain CnF in the modulation of chronic pain and antinociceptive effect of morphine on this area. Materials and Methods: I...
introduction: although formalin-induced activity in primary afferent fibers and spinal dorsal horn is well described, the midbrain neural basis underlying each phase of behavior in formalin test has not been clarified. the present study was designed to investigate the nucleus cuneiformis (cnf) neuronal responses during two phases after subcutaneous injection of formalin into the hind paw...
In the present study, the effects of intracuneiformis nucleus microinjection of gamma-aminobutyric acidA (GABAA) receptor agonist and antagonist on antinociception inducced by morphine were investigated with formalin test in rat. Intracuneiformis nucleus microinjection of morphine (10µgr/rat) and Bicuculline (50, 100 ng/rat) induced antinociception in the both first and second phases of formali...
زمینه و هدف: نقش ساقه مغز بخصوص ناحیه منقاری - شکمی- میانی بصل النخاع یا rostral ventromedial medulla (rvm) مدتهاست که ازنظر کنترل درد مد نظر بوده است، در این میان نقش ماده خاکستری دور قناتی (pag) و ناحیه منقاری ـ شکمی ـ میانی بصل النخاع ( rvm ) در ایجاد ضددردی اثبات شده است . علاوه بر این در آزمایشات انجام گرفته ، معلوم شده که rvm از هسته میخی شکل یا cuneiformis (cnf) نیز پیامهای عصبی دریافت م...
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