贵州医科大学学报

1997, (03)

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电刺激大鼠下丘脑弓状核对中脑导水管周围灰质单位放电的影响
Elctrostimulation of Arcuate Nucleus on the Unit Discharge of Periaqueductal Gray in Rat

王旭东,陆莲华
Wang Xudong,et al Department of Physiology,Guiyang Medical College

摘要(Abstract):

用玻璃微电极引导大鼠中脑导水管周围灰质(PAG)单位放电。发现:电刺激弓状核(ARC)后,在所观察的64个PAG单位中,表现为抑制的有37个单位(57.81%),其余单位分别表现为先抑制后兴奋(12.50%)、兴奋(12.50%)和无变化(17.19%)。结果表明,大鼠ARC对PAG单位活动的调制作用以抑制为主。
The experiment was carried out to explore the effects of stimulating arcuate nucleus (ARC) on the unit discharge of periaqueductal gray (PAG) in rats.It was found that electrical activation of ARC inhibited spontaneous firing of 37 in 64 units observed in PAG,the rest of which exhibited inhibito excitation,excitation and unchange,respectively.Our results may suggest that ARC predominantly exerts inhibitory infleuence upon the unit discharge of PAG in rats.

关键词(KeyWords): 导水管周围灰质,单位放电,弓状核,大鼠
periaqueductal gray;unit discharge;arcuate nucleus;rat

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作者(Author): 王旭东,陆莲华
Wang Xudong,et al Department of Physiology,Guiyang Medical College

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DOI: 10.19367/j.cnki.1000-2707.1997.03.008

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