元宝枫油对一次性力竭运动大鼠氧化应激和炎症反应的影响

目的 探讨元宝枫油对一次性力竭运动大鼠氧化应激和炎症反应的影响,为元宝枫油用于预防运动损伤提供科学依据.方法 30只健康SD雄性大鼠根据体质量随机分为安静对照组(A组,正常饮食+每天生理盐水灌胃),力竭组(B组,正常饮食+每天生理盐水灌胃)和元宝枫油力竭组(C组,每天元宝枫油0.21 mL/kg灌胃),6周后进行一次性力竭游泳运动,测定大鼠血清中肌酸激酶(CK)、乳酸脱氢酶(LDH)的活性及炎症因子白细胞介素(IL)-1β、IL-10和肿瘤坏死因子-α(TNF-α)的水平;测定肌肉匀浆中丙二醛(MDA)、还原性谷胱甘肽(GSH)水平及超氧化物歧化酶(SOD)、过氧化氢酶(CAT)和谷胱甘肽过氧化物酶(GSH-Px)的活性.结果 力竭运动后,B组与A组相比,血清中CK、LDH水平及IL-1β、TNF-α、IL-10水平均显著升高(P＜0.05),IL-10/TNF-α比值差异无统计学意义(P＞0.05),大鼠腓肠肌中MDA水平显著升高(P＜0.05),GSH水平与GSH-PX活性显著下降(均P＜0.05),SOD活性与CAT活性差异无统计学意义(P＞0.05);C组与B组相比,血清中CK、LDH水平及IL-1β、TNF-α显著下降(均P＜0.05),IL-10差异无统计学意义(P＞0.05),IL-10/TNF-α比值显著上升(P＜0.05),腓肠肌中MDA水平明显下降(P＜0.05),GSH水平及SOD、CAT、GSH-PX活性均显著升高(均P＜0.05).结论 元宝枫油可明显减轻力竭运动引起的氧化应激和炎症反应,对骨骼肌具有保护作用.

Effects of Acer truncatum oil on oxidative stress and inflammatory reaction in rats undergoing one-time exhaustive exercise

Objective To explore the effects of Acer truncatum oil on oxidative stress and inflammatory reaction in rats after exhaustive exercise to provide a scientific basis for the prevention of sports injury by Acer truncatum oil.Methods Thirty healthy male SD rats were randomly divided into control group (A,normal diet + saline every day),exhaustive group (B,normal diet + saline daily) and exhaustive with Acer truncatum oil group (C,0.21 mL/kg daily Acer truncatum oil gavage),6 weeks later,the rats performed once exhaustive swimming exercise,then the creatine kinase (CK),lactate dehydrogenase (LDH),cytokine interleukin (IL-1β,IL-10) and tumor necrosis factor alpha (TNF-α) in the serum;malondialdehyde (MDA) homogenate reduction glutathione (GSH),superoxide dismutase (SOD),catalase (CAT) and glutathione peroxidase (GSH-Px) in muscle were measured.Results After exhaustive exercise,when compared with the group A,the serum levels of CK,LDH,IL-1,TNF-α and IL-10 were significantly higher than in the group B(P＜0.05,P＜0.01,P＜0.05,P＜0.01,P＜0.05),IL-10/ TNF-α ratio had no statistically significant difference(P＞0.05),the level of MDA in gastrocnemius muscle increased significantly (P＜0.05),GSH level and GSH-PX activity decreased significantly (P＜0.05,P＜0.01),SOD and CAT activity were not statistically significant (P＞0.05).when compared with the group B,serum CK,LDH level and IL-1 β,TNF-α were significantly decreased (P＜0.05,P＜0.01,P＜0.01,P＜0.05),IL-10 had no statistical significance (P＞0.05),a significant increase in IL-10/TNF-α(P＜0.05),the level of MDA of gastrocnemius muscle decreased significantly (P＜0.05),the level of GSH and SOD,CAT and GSH-PX were significantly increased (P＜0,01,P＜0.01,P＜0.05,P＜0.01).Conclusion Acer truncatum oil can significantly reduce oxidative stress and inflammatory reaction caused by the exhaustive exercise,which has a protective effect on skeletal muscle.