银杏叶提取物对糖尿病大鼠体内氧化应激的影响

目的观察银杏叶提取物对糖尿病(DM)大鼠体内氧化应激水平的影响。方法利用Wistar大鼠建立糖尿病模型,将糖尿病大鼠分为糖尿病组(DM)和银杏叶治疗组(GBE),另设正常组动物为对照。DM组和正常对照组大鼠每日通过腹腔注射给予生理盐水0.83ml.kg-1,GBE组大鼠每日通过腹腔注射给予GBE0.83ml.kg-1,连续注射30天后取血测定各组大鼠血清中丙二醛(MDA)含量和超氧阴离子(O2-)水平,然后取出胰腺、肾脏测定MDA含量并采用免疫组化S-P法(链霉素抗生物素蛋白一过氧化物酶)检测肾脏蛋白激酶C(PKC)的表达。结果与正常对照组相比,DM组和GBE组大鼠血清、肾脏和胰腺中MDA的含量及血清中超氧阴离子(O2-)的水平显著升高(P0.05);GBE组大鼠血清、肾脏和胰腺中MDA的含量及超氧阴离子(O2-)的水平显著低于DM组(P0.05)。免疫组织化学染色结果表明,DM组PKC表达显著强于GBE组。结论银杏叶提取物可减轻糖尿病大鼠体内的氧化应激水平,具有抗氧化作用,对糖尿病并发症的发生发展具有一定的预防作用。     

Effect of Phonophoresis and Copaiba Oil on Oxidative Stress Biomarkers after Skeletal Muscle Injury in Rats

The objective of this study was to analyze the effectiveness of phonophoresis with copaiba oil gel, in comparison to therapeutic pulsed ultrasound alone or topical application of copaiba oil gel, on oxidative stress after a traumatic muscle injury. Forty male Wistar rats were divided into five groups: control, muscle injury, therapeutic pulsed ultrasound (TPU), copaiba oil gel (CO) and TPU plus CO. TPU and CO application occurred at 2, 12, 24, 48, 72 and 96 h after injury. The gastrocnemius muscle was injured by mechanical trauma. Malondialdehyde (a lipoperoxidation marker) and superoxide dismutase and catalase (antioxidant enzymes) were assessed 98 h after muscle injury. All were elevated in the muscle injury group. There was a significant difference among treatment groups favoring TPU plus CO for reducing malondialdehyde levels, but all treatments reduced superoxide dismutase and catalase activity, with no between-groups difference. In conclusion, phonophoresis—the application of TPU plus CO—was superior to TPU or CO alone for reducing lipoperoxidation. Phonophoresis, TPU alone and CO were all effective in decreasing antioxidant enzyme activity after a traumatic skeletal muscle injury.     

慢性大鼠酒精性心肌病氧化应激的影响

目的观察长期大量酒精摄入对大鼠心肌结构及心肌组织中丙二醛（MDA）、超氧化物歧化酶（SOD）和金属硫蛋白（MT）含量的影响,探讨氧化应激在酒精性心肌病大鼠中的作用。方法雄性健康SD大鼠45只,随机分为2组,即对照组20只和模型组25只。模型组酒精浓度从5%、10%、20%和30%依次各自由饮1周,然后递增至36%后以该浓度维持饲喂。对照组每日饮用与模型组酒精同等热量的葡萄糖水。6个月后,观察大鼠心肌组织的形态学改变及超微结构的变化,测定心肌组织中MDA、SOD及MT的含量。结果模型组大鼠心肌细胞排列紊乱、间质充血、炎细胞浸润、线粒体肿胀、空泡形成、肌丝溶解、核膜不规则和核仁裂解。心肌组织中MDA含量明显升高（P〈0.01）,SOD活力含量明显降低（P〈0.01）,MT含量明显降低（P〈0.01）。结论长期摄入大量酒精可使氧自由基代谢失衡,导致心肌损伤。氧化应激在酒精性心肌病发病机制中发挥着重要的作用。     

Exploring the Effect of Asclepias curassavica on Markers of Oxidative Stress in Rats

Objective

Extract of the aerial part of Asclepias curassavica L. (Asclepiadaceae family) was screened for both in vitro and in vivo antioxidant activity.

Methods

Different concentrations of different extracts (chloroform, ethyl acetate, methanol and hydroalcohol) of A. curassavica were investigated for in vitro antioxidant activity using the thiocyanate method. The hydroalcoholic extract exhibited the highest inhibitory activity on peroxidation, over the other organic extracts, and was subjected to further in vivo antioxidant activity. Hydroalcoholic extract was administered to rats at two different doses of 250 and 500 mg/kg for 14 days to evaluate oxidative stress parameters such as ferric reducing ability of plasma (FRAP), thiobarbituric acid reactive substance (TBARS) and reduced glutathione (GSH) and to evaluate antioxidant enzyme levels of Superoxide dismutase (SOD) and catalase (CAT).

Results and Discussion

The IC₅₀ value (31.2 µg/mL) of hydroalcoholic extract was found to be less than the standard, α-tocopherol (IC₅₀ value 66.1 µg/mL). The hydroalcoholic extract significantly (p < 0.05) increased the FRAP on days 7 and 14 of treatment. Significant (p < 0.05) reduction of TBARS along with an increase in the SOD enzyme level in the liver and kidney at two different doses was observed. Treatment at a 500 mg/kg bodyweight dose caused a significant increase only in the level of CAT in the liver and kidney. However, there was no significant effect of TBARS, SOD and CAT in the heart, and the GSH level in liver, heart and kidney.

Conclusion

It can be concluded that the hydroalcoholic extract of A. curassavica had significant antioxidant activity, which might be helpful in preventing (or slowing) various oxidative stress-related diseases.     

巴戟天水提物对人精子运动功能氧化损伤的保护作用

目的 观察巴戟天水提物对人精子运动功能氧化损伤的保护作用。方法 采用体外培养精子模型，应用次黄嘌呤-黄嘌呤氧化酶（HX—XO）体系产生活性氧，在有氧环境下，将活性氧和不同剂量的巴戟天水提物与精子悬液共同孵育后，检测精子运动参数，应用精子毛细管穿透试验评估精子运动功能，并与已知的抗氧化剂VitC对照。结果 在活性氧作用下，精子的功能受损，运动功能和穿透能力明显下降，与正常精子相比有非常高度显著性差异（P〈0．001）；巴戟天水提物大、中、小剂量组在相同条件下均可明显改善精子的运动功能和穿透能力，与VitC相比较，0．25和0．5g／ml巴戟天水提物的作用更明显（P〈0．05，P〈0．01），尤其对前向运动率和活力指数的改善最明显。结论 活性氧可导致精子运动功能和穿透能力的损伤，适宜剂量的巴戟天水提物对活性氧所致人精子过氧化损伤具有明显干预作用，对精子运动功能具有保护作用。     

筋脉通对糖尿病大鼠背根神经节氧化应激的影响

  目的  探讨中药复方筋脉通对糖尿病大鼠背根神经节尼氏染色及NADPH氧化酶、诱导型一氧化氮合酶(inducible nitric oxide synthase, iNOS)表达的影响。  方法  70只雄性Sprague Dawley大鼠腹腔注射链脲佐菌素诱导糖尿病大鼠模型后, 随机分为模型组、筋脉通大、中、小剂量组和维生素C对照组, 每组14只, 同时设正常对照组(n=10);筋脉通大、中、小剂量组分别按成人剂量20倍、10倍、5倍、维生素C组按成人剂量10倍灌胃给药, 模型组和正常对照组予等量蒸馏水灌胃; 16周后对各组背根神经节切片行尼氏染色, 免疫组化法检测NADPH氧化酶p22 phox亚基和iNOS的表达。  结果  模型组神经元胞体中尼氏体缺失, 筋脉通大、中剂量组尼氏体改变明显轻于模型组; 筋脉通各剂量组NADPH氧化酶p22 phox亚基、iNOS表达均明显低于模型组(P < 0.05)。  结论  糖尿病大鼠周围感觉神经节存在氧化应激反应, 筋脉通可减轻氧化应激损伤, 保护神经元。     

足部反射疗法对2型糖尿病大鼠肝脏氧化应激的影响

目的:探讨足部反射疗法对2型糖尿病大鼠肝脏氧化应激的影响.方法:30只Wistar大鼠以高热量饲料加链脲佐菌素喂养,8周后成功建立的2型糖尿病大鼠模型共20只,分为模型组及足疗组各10只,另选取10只大鼠给予基础饲料喂养作为正常对照(正常)组.足疗组大鼠造模成功后参照人和动物穴位解剖图在大鼠足部取五脏六腑及神经系统、免疫系统的反射区间歇按压10～40次,每日1次.8周后,处死各组大鼠测定肝组织丙二醛(MDA)含量及谷胱甘肽过氧化物酶(GSH-Px)、超氧化物歧化酶(SOD)、过氧化氢酶(CAT)活性的变化.结果:与正常组比较,模型组大鼠肝脏MDA含量明显升高,GSH-Px、SOD及CAT活性显著降低(均P<0.01);足疗组各项指标略有变化,但与正常组比较无统计学意义;与模型组比较差异有显著性意义(P<0.05,0.01).结论:足部反射疗法能够抑制2型糖尿病大鼠氧化应激,改善肝脏的能量代谢,对2型糖尿病引起的氧化损伤有保护作用.     

丙氨酰-谷氨酰胺二肽对大鼠创伤性脑损伤后应激性肝损害的干预作用

【目的】探讨丙氨酰-谷氨酰胺二肽（Ala-Gln）对创伤性脑损伤（TBI）大鼠应激性肝损害（HSI）的干预作用。【方法】将60只健康雄性Wister大鼠随机分为假手术对照组（A组）、TBl组（B组）,和Ala-Gin干预组（C组）。C组再分四个亚组分别于致伤后不同时间点3～24h给予Gln干预,各组大鼠均于伤后48h处死取材,检测血清丙氨酸转氨酶（ALT）和天门冬氨酸转氨酶（AST）,测定肝组织超氧化物歧化酶（SOD）和丙二醛（MDA）水平,观察肝脏组织病理学改变。【结果】B组的ALT、AST较A组明显升高,SOD值明显低于A组,MDA显著高于A组,肝脏组织病理学可见变性、坏死等改变;c组各时点ALT、AST及MDA均较B组显著下降,SOD值明显升高,肝脏组织病理学改变显著改善,且伤后早期干预效果明显。【结论】TBI后可出现肝损伤,应用Ala-Gln对TBI后的肝损伤具有干预作用,且此保护作用可能通过改善肝组织的氧化应激状态完成,并具有显著的时效相关性。     

Erythropoietin Ameliorates Oxidative Stress and Tissue Injury following Renal Ischemia/Reperfusion in Rat Kidney and Lung

Objective

To study the effect of erythropoietin (EPO) treatment on renal and lung injury following renal ischemia/reperfusion (I/R).

Materials and Methods

Thirty male Wistar rats were assigned to three groups of 10 rats each. The first group was sham-operated, the second was subjected to renal I/R (30 min of ischemia followed by 24 h of reperfusion). The third group was subjected to renal I/R and treated with EPO in two doses: the first dose 1 h prior to ischemia (1,000 U/kg) and the second dose 6 h after ischemia (1,000 U/kg).

Results

The renal and lung tissue injury index, tissue serum blood urea nitrogen and creatinine (Cr) were higher in the renal I/R group compared to the renal I/R + EPO group; the difference was statistically significant (p < 0.05). Kidney and lung tissue glutathione peroxidase and superoxide dismutase levels were higher in the renal I/R + EPO group than the renal I/R group; the difference was also statistically significant (p < 0.05).

Conclusion

The data showed that EPO pretreatment could be effective in reducing renal and lung injury following renal I/R and could improve the cellular antioxidant defense system. Hence EPO pretreatment may be effective for attenuating renal and lung injury after renal I/R-induced injury during surgical procedures, hypotension, renal transplantation and other conditions inducing renal I/R.Key Words: Erythropoietin, Ischemia/reperfusion, Kidney, Lung     

骨髓间充质干细胞对脊髓损伤大鼠的治疗作用

目的:研究脊髓损伤(SCI)后的不同时间点尾静脉移植大鼠骨髓间充质干细胞(BMSCs)对大鼠SCI的修复作用。方法:SD大鼠24只,制备大鼠SCI模型,随机分为3组各8只:对照组于SCI后尾静脉注射生理盐水;24 h移植组和于7 d移植组分别于SCI后24 h、7 d尾静脉注射BMSCs缓冲液(2×106/m L)1 m L。在SCI后各时间点分别进行Basso Beattie Bresnahan(BBB)运动学评分,于第42天处死动物,HE染色观察SCI处空洞面积的改变情况。结果:7 d移植组大鼠SCI后14、21、28、35、42 d的BBB评分明显高于24 h移植组和对照组,差异有统计学意义(P0.05)。HE染色显示各组SCI部位形成脊髓空洞,7 d移植组大鼠的脊髓空洞明显小于24 h移植组和对照组。结论:BMSCs可在体外培养、扩增,能通过尾静脉注射的方式迁移到SCI部位,促进SCI大鼠的神经功能恢复;移植的最佳时间在损伤后7 d左右。     

三氯化钆对大鼠肝脏缺血再灌注损伤保护作用的实验研究

【目的】探讨枯否细胞抑制荆三氯化钆对大鼠肝脏热缺血再灌注损伤的影响，并分析其可能机制。【方法】将64只成年雄性SD大鼠随机分为3组：三氯化钆预处理＋缺血再灌柱组（GD组，n=24），生理盐水预处理＋缺血再灌注组（NS组，n=24），假手术组（Sham组，n=16）。按Pringle＇s法建立肝脏95％缺血模型：选择性阻断肝门静脉左支及肝动脉30min，再灌注120min。各组经下腔静脉取血测定血清谷丙转氨酶（ALT）、谷草转氨酶（AST）、肿瘤坏死因子（TNF-α）浓度；各组分别于再灌注120min后经尾静脉注射印度墨汁，断尾取血测量0D5 min and OD15 min值以计算枯否细胞吞噬系数；取左叶肝组织行病理切片检查。【结果】①缺血30min及再灌注120min后GD组ALT、AST、TNF-α浓度低于NS组（P〈0．05）。②再灌注120min后GD组枯否细胞吞噬系数较NS组及Sham组降低（P〈0.05）。③GD组再灌注120min后肝组织形态学改变均较NS组轻。【结论】三氯化钆能减少枯否细胞释放细胞因子（主要是肿瘤坏死因子）从而减轻肝脏热缺血再灌注损伤。     

Effect of Thymoquinone on Oxidative Stress in Escherichia coli–Induced Pyelonephritis in Rats

Background

Recurrent urinary tract infections are important in children and adults with diabetes mellitus and/or incontinence due to risk of pyelonephritis (PYN) and renal damage. There is a positive correlation released free radicals during PYN and renal damage. Experimental studies showed that antioxidant agents improve renal damage when used immediately after bacterial inoculation.

Objective

The aim of the present study was to evaluate whether treatment by thymoquinone (TQ) before or during Escherichia coli inoculation prevents oxidative damage in acute pyelonephritis (PYN) in an ascending obstructive rat model.

Methods

In this study, 42 Wistar rats were grouped as follows: control, PYN (24, 48, and 72 hours), and TQ-PYN (24, 48, and 72 hours). E. coli (1 ×10⁹ colony forming units) was inoculated into the bladder via urethral catheterization in both the PYN and TQ groups. TQ injections were performed 24 hours before bacteria inoculation and repeated at 24-hour intervals during the indicated time at a dose of 10 mg/kg body weight intraperitoneally in TQ groups.

Results

Superoxide dismutase activity was statistically lower in the TQ-PYN-48 and -72 groups than the PYN-48 and -72 groups (P < 0.001, P = 0.004, respectively). Catalase activity was significantly higher in PYN-24, -48, and -72 groups than the control group (P < 0.001). In addition, there was a significant difference between the TQ-PYN-24, -48, and -72 groups and PYN groups in terms of glutathione peroxidase activity (P < 0.001, P = 0.026, P = 0.046, respectively). When the TQ-PYN-72 group was compared with the PYN-72 group, malondialdehyde levels were significantly lower in the TQ-PYN-72 group than in the PYN-72 group (P = 0.033). A histologic examination also confirmed the protective effect of TQ. In statistical analysis of histopathologic findings, there were significant differences between the PYN-24 and TQ-PYN-24, PYN-48 and TQ-PYN-48, and PYN-72 and TQ-PYN-72 groups (P = 0.008, P < 0.001, P < 0.001, respectively).

Conclusions

The results indicate that TQ administration attenuated the oxidative damage that occurred in PYN and, therefore, could be used as a supportive agent to protect the kidneys from oxidative damage caused by PYN.     

臭氧氧化预处理对大鼠肾I/R组织Toll样受体4表达的影响

目的观察臭氧氧化预处理(OzoneOP)对大鼠肾缺血再灌注损伤(ischemia-reperfusion injury,I/R)组织内Toll样受体4(TLR4)表达的影响。方法将48只大鼠随机分为假手术组、假手术+OzoneOP组、I/R组、I/R+OzoneOP组,每组各12只。术前15d始对包含OzoneOP的大鼠经直肠吹入氧气和臭氧的混合气体5～5.5 ml(臭氧浓度50 mg/L,1 mg/kg,每日1次),之后按分组要求建立原位大鼠单侧肾I/R动物模型。24 h后检测尿素(BUN)、肌酐(Cr)、TLR4 mRNA表达、TLR4蛋白表达情况。结果 I/R组和I/R+OzoneOP组BUN、Cr、TLR4 mRNA含量、TLR4蛋白含量明显高于假手术组和假手术+OzoneOP组,差异有统计学意义(P<0.05),而I/R组上述4项指标又明显高于I/R组+OzoneOP组,差异均有统计学意义(P<0.05),而假手术组与假手术+OzoneOP组比较差异无统计学意义(P>0.05)。结论 OzoneOP可以减轻肾I/R,其机制可能通过抑制TLR4的表达而发挥作用。     

N-乙酰半胱氨酸对糖尿病大鼠肾脏氧化应激的影响

目的：研究N乙酰半胱氨酸（NAC）对糖尿病大鼠肾组织氧化应激的影响。方法：采用链脲佐菌素诱导糖尿病模型，以NAC（75mg&#183;d^-1）干预8周后，测定血糖、肾重／体重、尿白蛋白排泄率，并检测肾组织中丙二醛（MDA）含量及肾组织超氧化物歧化酶（SOD）、过氧化氢酶（CAT）、谷胱甘肽过氧化物酶（GSH—Px）的活性。结果：与正常对照纽比较，模型组肾组织MDA含量显著增加（P〈0．05），SOD、CAT和GSH—Px活性均显著降低（P〈0．05）；与模型组比较，NAC组血糖无显著差异（P〉0．05），但肾重/体重和尿白蛋白排泄率显著降低（P〈0．05），肾组织MDA含量显著降低（P〈0．05），SOD、CAT和GSH—Px活性显著增加（P〈0．05）。结论：糖尿病大鼠肾脏存在明显氧化应激反应，N—NAC能明显减弱肾脏氧化应激反应，进而起到保护肾脏和延缓糖尿病肾病发生、发展的作用。     

葡萄籽原花青素对睡眠呼吸暂停低氧大鼠海马区超微结构及认知功能的影响

目的探讨葡萄籽原花青素(GSPE)对睡眠呼吸暂停低氧大鼠海马区超微结构及认知功能的影响。方法80 只雄性Sprague-Dawley 大鼠随机分成对照组,模型组,GSPE高、低剂量组。对照组暴露于空气中,模型组每天暴露于低氧条件下(50 ml/L) 8 h,持续时间2 周和6 周,GSPE高、低剂量组入舱前2 周开始每天分别灌胃给药GSPE 200 mg/kg、100 mg/kg。电镜观察海马区神经细胞超微结构,比色法检测大脑组织丙二醛(MDA)水平和超氧化物歧化酶(SOD)水平,TUNEL法检测凋亡细胞,水迷宫测试动物学习记忆功能。结果模型组海马区超微结构损伤,MDA含量显著升高、SOD活性显著降低、TUNEL阳性细胞显著增多,水迷宫检测动物逃避潜伏期时间显著延长、穿台次数显著减少(P<0.001);与模型组比较,GSPE各组海马区损伤减轻, MDA含量降低,SOD活性提高,TUNEL阳性细胞减少,水迷宫测试逃避潜伏期时间缩短、穿台次数增多(P<0.05);高剂量组优于低剂量组(P<0.05)。结论葡萄籽原花青素减轻睡眠呼吸暂停模式低氧大鼠海马区超微结构的损伤,改善认知功能。     

Evaluation of Acetamiprid Mediated Oxidative Stress and Pathological Changes in Male Rats: Ameliorative Effect of Curcumin

Present study was undertaken to evaluate the acetamiprid-mediated toxicity and possible protective effect of curcumin in rats. Rats were divided into seven different groups. They received curcumin (100 mg/kg, b.wt. p.o.) and acetamiprid (26.25 and 105 mg/kg b.wt., p.o.) alone and in their combinations for period of 28 days. Lipid peroxidation and antioxidant enzyme activities were determined in liver, kidney and brain and cellular changes histopathologically. Study shows that administration of acetamiprid caused a significant induction in oxidative damage in liver, kidney and brain as evidenced by increased level of lipid peroxidation (LPO) and altered activities of reduced glutathione (GSH), catalase (CAT), superoxide dismutase (SOD) and glutathione reductase (GR). Co-administration of curcumin with acetamiprid significantly decreased LPO, caused marked restoration in the non-enzymatic (GSH) and enzymatic antioxidants system (CAT, SOD and, GR) and protected from acetamiprid-mediated structural alterations of liver, kidney and brain. The results of present study indicates that curcumin ameliorate the acetamiprid-induced toxic damage to vital organ mediated via oxidative stress.

     

脑损伤对大鼠脑组织GDNF表达的影响

目的探讨大鼠闭合性颅脑损伤后脑组织中胶质细胞源性神经营养因子(GDNF)的表达情况。方法制备Marmarou's大鼠落体打击损伤模型,将大鼠随机分为正常对照组、手术对照组及损伤后1 h组、2 h组、4 h组、8 h组、12 h组、24 h组、48 h组、72 h组和5 d组。制备组织芯片,采用免疫组化法检测大脑皮层、海马以及脑干中GDNF的表达情况。结果正常组、手术对照组中皮层、海马以及脑干中可见到GDNF低水平表达,损伤后2 h,皮层GDNF的表达达到高峰,并且大量表达可持续至伤后5 d;损伤后2 h海马以及脑干中GDNF的表达亦达到高峰,72 h降至正常水平。结论闭合性颅脑损伤后,大鼠大脑皮层、海马以及脑干中GDNF在早期即明显表达,皮层中GDNF大量表达更为持久。     

Nrf2基因转染对缺血再灌注心肌炎症反应和氧化应激的影响

[目的]探讨心肌细胞过表达核因子相关因子2（Nrf2）基因后对缺血再灌注损伤导致的炎症反应和氧化应激的影响.[方法]30只SD大鼠随机分成3组（n=10）,A组为对照组,B组为缺血再灌注组,C组为Nrf2组.A组和B组经冠脉转染携带绿色荧光蛋白的腺病毒载体（Ad-EGFP）,C组转染携带Nrf2基因的腺病毒载体（Ad-Nrf2）至心肌组织.稳定3 d后,各组行心肌缺血再灌注损伤（或假实验）.光学显微镜下观察心肌的炎症改变,测定心肌组织超氧化物歧化酶（SOD）活性及丙二醛（MDA）的含量.[结果]缺血再灌注后,光镜下B组亚细胞结构损伤明显,C组结构损伤较B组明显减轻; B、C两组SOD的活性与A组比较明显降低（P〈0.05）,而B组明显低于C组（P〈0.05）;B、C两组MDA含量与A组比较明显升高（P〈0.05）,B组明显高于C组（P〈0.05）.[结论]过表达Nrf2基因能通过抗炎和抗氧化应激保护缺血再灌注心肌.     

葛根素对COPD大鼠气道炎症及气道重塑作用的研究

【目的】探讨葛根素腹腔注射对慢性阻塞性肺疾病（COPD）大鼠模型炎症、抗氧化及气道重塑的影响。【方法】采用熏吸香烟加气管内注射脂多糖的方法建立大鼠COPD模型,并采用病证相结合的方法分别建立气虚、阴虚、血瘀证COPD模型,测定大鼠血清TNF-α、ET-1、肺泡盥洗液IL-8、肺组织匀浆SOD以及支气管平滑肌厚度及其变化。【结果】模型组的TNF-α、ET-1、IL-8、SOD与正常组相比有显著差异（P〈0.01）;治疗组TNF-α、ET-1含量明显低于模型组含量,有显著差异（P〈0.05）,血瘀治疗组的TNF-α含量明显低于模型组含量,有显著差异（P〈0.05）,ET-1含量明显低于模型组含量,但无统计学差异（P〉0.05）。各治疗组的IL-8含量明显低于模型组含量,有显著差异（P〈0.05）;SOD含量明显高于模型组,有显著差异（P〈0.05）。各治疗组之间的TNF-α、ET-1、IL-8、SOD含量两两对比,都未见明显差异（P〉0.05）;各治疗组的支气管平滑肌厚度明显小于模型组支气管平滑肌厚度,有显著差异（P〈0.05）,各治疗组之间的支气管平滑肌厚度两两对比,都未见明显差异（P〉0.05）。【结论】葛根素能减少大鼠COPD模型炎症介质的释放,具有抗氧化、抑制气道重塑的作用。