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三叉神经感觉核簇（Vcx）是面、口部感觉信息包括伤害感受性传入在脑内中继的第一站。施加于面、口部的伤害性刺激可诱发Vcx内神经元的C－fos蛋白表达。许多证据表明NO参与伤害性感受信息的中枢处理。因而，研究Vcx内面、口部伤害性刺激诱发的C－fos蛋白表达及其与一氧化氮合酶
The trigeminal sensory nucleus (Vcx) is a surface-sensory information of the mouth that includes nociceptive afferent afferent relay in the first leg of the brain. Noxious stimulation applied to the face and mouth can induce C-fos protein expression in Vcx neurons. Much evidence suggests that NO participates in the central processing of nociceptive information. Therefore, the study of Vcx, nociceptive stimulation induced C-fos protein expression and nitric oxide synthase