目的:探究背部推法对慢性疲劳综合征(CFS)大鼠运动行为、氧化应激和炎症反应的影响.方法:将24只SD大鼠按照随机数字表法分为空白组、模型组、推法组,每组8只.选用强迫负重游泳联合慢性应激刺激的方法制备CFS大鼠模型,共造模21 d.推法组在造模结束后给予背部推法,20 min/次,1次/d,连续干预14 d.记录各组大鼠一般情况半定量评分、力竭游泳时间、旷场实验运动距离.实验结束后,收集所需标本,用HE染色法观察竖脊肌组织病理学变化,并使用Image Pro Plus软件计算肌纤维横截面面积和直径,Origin软件处理绘制肌纤维横截面面积频率分布图.检测大鼠竖脊肌中超氧化物歧化酶(SOD)、谷胱甘肽过氧化物酶(GSH-Px)、过氧化物酶体增殖物激活受体γ辅激活因子1α(PGC-1α)以及血清中肿瘤坏死因子(TNF)-α、白细胞介素(IL)-1β、IL-6的含量.结果:(1)实验结束后,推法组大鼠一般情况半定量评分显著低于同期模型组(P<0.01)、力竭游泳时间和旷场实验运动距离均显著高于同期模型组(P<0.05,P<0.01).(2)HE染色法结果显示,模型组大鼠竖脊肌肌细胞明显萎缩,而推法组大鼠肌细胞萎缩程度低于模型组.(3)与空白组比较,模型组大鼠竖脊肌中的SOD、GSH-Px以及PGC-1α含量均显著下降(P<0.01),血清TNF-α、IL-1β、IL-6含量显著上升(P<0.01).与模型组比较,推法组大鼠竖脊肌SOD、GSH-Px、PGC-1α含量显著升高(P<0.05,P<0.01),血清TNF-α、IL-1β、IL-6含量显著降低(P<0.05,P<0.01).结论:背部推法能够调节CFS大鼠的氧化应激反应,减轻炎症反应,从而改善大鼠运动行为.
Effects of Tuina on motor behavior,oxidative stress and inflammatory response in rats with chronic fatigue syndrome
Objective To explore the effect of back Tuina on motor behavior,oxidative stress and in-flammation in rats with chronic fatigue syndrome(CFS).Methods Twenty-four Sprague-Dawley rats were randomly divided into a blank group,a model group and a Tuina group,each of 8,according to a random number table.The CFS rat model was prepared by means of forced weight-bearing swimming combined with chronic stress stimulation in 21 days.After modeling,the Tuina group was given daily 20-minute Tuina for 14 days.The general condition semi-quantitative score,exhaustion swimming time and open field experiment(OFE)distance of all groups were recorded.After the experiment,sam-ples were collected,and the histopathological changes of the vertical spine muscles were observed by hematoxylin and eosin(HE)staining.The cross-sectional area and diameter of muscle fibers were calcu-lated using Image Pro Plus software,and the frequency distribution diagram of cross-sectional area of muscle fibers was processed by using the Origin software.The contents of superoxide dismutase(SOD),glutathione peroxidase(GSH-Px)and peroxisome proliferator-activated receptor γ-coactivator 1α(PGC-1α)and tumor necrosis factor(TNF)-α,interleukin(IL)-1β,IL-6 in the serum of rats were mea-sured.Results After the intervention,the general condition semi-quantitative score of the Tuina group was significantly lower than the model group(P<0.01),while the exhaustion swimming time and OFE distance were significantly higher than the latter group(P<0.05,P<0.01).(2)HE staining showed that the significant atrophy of erector spinal muscle cells in the model group,was significantly relieved in the Tuina group.(3)Compared with the blank group,the contents of SOD,GSH-Px and PGC-1α in erectus muscles decreased significantly(P<0.01),while those of TNF-α,IL-1β and IL-6 in the se-rum of the model group increased significantly(P<0.01).However,compared with model group,the contents of SOD,GSH-Px and PGC-1α in erectus muscle increased significantly(P<0.05,P<0.01),while those of TNF-α,IL-1β and IL-6 of the Tuina group decreased significantly(P<0.05,P<0.01).Conclusion Tuina in the back can regulate the oxidative stress response,reliever the inflammatory re-sponse and improve the motor behavior of CFS rats.
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