百会穴电针和埋线对慢性应激抑郁模型大鼠行为学及血清CORT和ACTH的影响

目的观察百会穴电针、埋线对慢性应激抑郁模型大鼠行为学及血清皮质酮（CORT）和促肾上腺皮质激素（ACTH）的影响,探讨针灸治疗抑郁症的作用机制。方法将32只雄性SD大鼠随机分为正常组、模型组、电针组和埋线组,每组8只。应用孤养和长期不可预见的中等强度刺激应激造成大鼠抑郁模型,测定各组大鼠体重、糖水消耗量,采用Open-field法对大鼠进行行为学评分,应用放射免疫分析法检测大鼠血清CORT和ACTH的含量变化。结果与正常组大鼠比较,模型组大鼠体重明显下降,糖水消耗量、行为学评分明显下降;与模型组大鼠相比,电针组大鼠的体重明显增加,糖水消耗量显著增加,行为学评分显著提高（P〈0.01）,血清CORT和ACTH含量显著降低（P〈0.01）;埋线组大鼠糖水消耗量及行为学垂直运动得分显著增加（P〈0.01）,血清ACTH也明显降低（P〈0.01）,但是CORT含量无显著性差异。结论电针与埋线干预均可改善抑郁大鼠的行为学异常;电针能下调血清CORT和ACTH含量,埋线能下调血清ACTH含量,该作用可能是其抗抑郁的重要机制。

Effect of Electroacupuncture and Catgut Embedding at Point Baihui on Behaviors and Serum CORT and ACTH in a Rat Model of Chronic Stress-induced Depression

Objective To investigate the effect of electroacupuncture and catgut embedding at point Baihui(GV 20)on behaviors and serum corticosterone(CORT)and adrenocorticotrophic hormone(ACTH)in a rat model of chronic stress-induced depression and explore the mechanism of therapeutic action of acupuncture on depression.Methods Thirty-two male SD rats were randomly allocated to normal,model,electroacupuncture and catgut embedding groups,8 rats each.A rat model of depression was made by individual feeding and chronic u...