针刺足三里、关元穴对脓毒症大鼠胸腺细胞凋亡的影响

目的 观察电针足三里、关元穴对脓毒症大鼠胸腺细胞凋亡的影响.方法 将大鼠随机分成正常对照组、模型组、针刺组.采用盲肠结扎穿孔(CLP)致腹腔感染脓毒症模型,应用流式细胞仪以Annexin-PI双染色法及光镜、透射电镜观察CLP致腹腔感染后36h胸腺淋巴细胞的凋亡情况,应用放射免疫法测定脑垂体和外周血血管活性肠肽(VIP)含量的变化.结果 CLP致腹腔感染可导致胸腺细胞凋亡增多,电镜和光镜显示其典型的形态学特征,模型组、针刺组的胸腺细胞凋亡率高于正常对照组;而针刺组的胸腺细胞凋亡率低于模型组.CLP致腹腔感染后脑垂体和外周血中VIP含量下降,模型组、针刺组脑垂体VIP含量低于正常对照组;而针刺组脑垂体VIF-含量高于模型组.模型组、针刺组外周血中VIP含量低于正常对照组;而针刺组外周血中VIP含量高于模型组.结论 电针足三里、关元穴可以减轻CLP致腹腔感染脓毒症大鼠胸腺细胞凋亡,其机理可能与VIP的合成和释放增多有关,并通过这些免疫递质对神经-内分泌-免疫调节网络发挥作用.

Effects of Electroacupuncture at Zusanli (ST36) and Guanyuan (CV4) on the Apoptosis of Thymocytes in Rats with Sepsis

Objective:To observe the influence of electroacupuncture(EA) at Zusanli(ST36) and Guanyuan(CV4) on the apoptosis of thymocytes in rats with sepsis.Methods:SD rats were randomly divided into three groups,including control group,model group and treatment group.The sepsis model was made from abdominal infection resulted from cecal ligation and puncture(CLP) .The apoptosis of thymocytes was observed under electron microscope and light microscope,and apoptosis ratio of thymocytes was determined by Annexin-PI met...