机体不同功能状态下针刺同一穴位激活的脑功能区不同

来源 :中国神经科学学会第九届全国学术会议暨第五届会员代表大会 | 被引量 : 0次 | 上传用户:resume_002
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  目的 比较健康人和围绝经期患者针刺同一穴位时激活的脑功能区差异。方法 利用功能性磁共振成像技术(fMRI),观察8名围绝经期患者和6名健康志愿者针刺右下肢三阴交和公孙穴时激活的脑功能区。采用组块设计,针刺方法为手针捻转刺激。结果 围绝经期患者和健康人针刺同一穴位时激活的脑功能区不同。在围绝经期患者中针刺三阴交和公孙穴都显著激活双侧颞上回和躯体感觉运动区,且楔前叶、扣带后回和前额叶内侧皮层负激活,另针刺三阴交还显著激活基底核;而在健康人中,针刺三阴交主要引起双侧扣带回、岛叶和额上回的显著激活,针刺公孙穴主要激活双侧中央前回、丘脑及对侧中央后回和颞上回,且各脑区激活的强度和面积都较小。结论 本研究结果说明针刺穴位激活的脑功能区随机体的功能状态而改变,提示这很可能与针刺治疗的双向调节功能相关,另这一结果也提示我们用健康志愿者针刺穴位激活的脑功能区解释针刺临床治疗效应时需慎重。
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