针刺对备用背根节神经元TrkC表达的影响

Sichuan da xue xue bao. Yi xue ban = Journal of Sichuan University. Medical science edition(2003)

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Abstract
目的探讨针刺对备用背根节(DRG)TrkC表达的影响.方法将成年雄猫分为三组,即假手术组、单侧部分背根切除术组、单侧部分背根切除术并针刺组.通过免疫组化ABC法,观察各组L6DRG中TrkC免疫反应(TrkC-IR)神经元数量.结果在假手术组TrkC-IR主要定位于L6 DRG的大神经元及少数中小神经元胞浆内;部分背根切断后,TrkC-IR大神经元数量明显减少,而中小神经元数量则明显增多(P<0.05);针刺后,TrkC-IR大神经元数量较手术组又明显增多,且反应强度明显增加(P<0.05),而对中小神经元TrkC阳性细胞数无明显影响.结论针刺促进TrkC在大神经元的表达上调, 提示TrkC可能与脊髓可塑性有关.
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Key words
acupuncture,dorsal root ganglion,partial dorsal root rhizotomy,trkc expression
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