首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 31 毫秒
1.
The effects of Compound Salvia Injection (CSI) on plasma lipid peroxidation (LPO), RBC superoxide dismutase (SOD), glutathione peroxidase (GSH-Px) and catalase (CAT) activity in patients with chronic cor pulmonale were studied. Thirty patients were randomly divided into two groups: the group treated with routine therapy (routine group) and the group treated with routine therapy plus CSI (CSI group). The 4 parameters mentioned above have been measured in patients of the two groups and in 22 healthy subjects for control. The results showed: (1) Before treatment, both the treatment groups had significantly higher LPO and SOD and markedly lower GSH-Px and CAT level than those of the healthy control (P<0.001). (2) After treatment the 4 parameters have been normalized in CSI group. (3) In the routine group, the parameters were still abnormal, that is, the increased levels of GSH-Px and CAT and the decreased LPO were singificantly greater in CSI group than that in routine group. These results indicated that CSI could obviously lower the enhanced lipid peroxidation and adjust the imbalance of antioxidant enzymes.  相似文献   

2.
目的 探讨愈肝汤对慢性乙肝患者的脂质过氧化作用。方法  43例慢性乙肝患者服愈肝汤治疗 3mo ,观察其治疗前后超氧化物歧化酶 (SOD)、谷胱甘肽过氧化物酶 (GSH -Px)活力和过氧化脂质(LPO)水平的变化 ,并与 38例健康对照组比较。结果 慢性乙肝患者SOD、GSH -Px活力降低 (P <0 .0 5 ) ,LPO水平升高 (P <0 .0 5 ) ;愈肝汤可升高SOD和GSH -Px酶活性 (P <0 .0 1) ,降低LPO水平 (P <0 .0 5 )。结论 愈肝汤对慢性乙肝患者有明显的抗脂质过氧化作用 ,这是其治疗慢性乙型肝炎、减轻肝细胞损伤的重要机理之一。  相似文献   

3.
川芎嗪注射液治疗慢性阻塞性肺疾病急性发作的疗效观察   总被引:2,自引:0,他引:2  
目的:探讨川芎嗪注射液配合常规疗法治疗慢性阻塞性肺疾病(COPD)急性发作的疗效及其作用机制。方法:106例COPD急性发作期患者随机分为常规治疗组和联用川芎嗪治疗组;联用川芎嗪治疗组在常规疗法的基础上联用川芎嗪注射液治疗。观察两组临床疗效并检测患者血浆脂质过氧化物(LPO)、全血谷脱甘肤进氧化物酶(GSH-Px)和过氧化氢酶(CAT)活性变化。结果:联用川芎嗪治疗组显效率为70.37%,常规疗法组为50.00%,有显著性差异(P<0.05)。联用川芎嗪治疗组GSH-Px和CAT明显高于常规组,而LPO明显低于常规组。结论:在常规治疗的基础上联用川芎嗪注射液治疗COPD急性发作能明显提高临床疗效,这与川芎嗪注射液能明显降低患者增强的脂质过氧化反应,纠正失衡的抗氧化物酶有关。  相似文献   

4.
本文对接触苯、甲苯的作业女工血清中过氧化脂质(LPO)、红细胞中超氧化物歧化酶(SOD)和谷胱甘肽过氧化物酶(GSH-Px)进行了测定分析。其结果为:(1)接触组女工血中LPO、SOD含量均明显高于对照组。说明苯、甲苯使作业女工体内脂质过氧化反应增强。(2)WBC计数与LPO、SOD和GSHPx含量均呈负相关,提示随着脂质过氧化反应增强WBC计数降低。因此,作者认为脂质过氧化反应增强是苯、甲苯导致WBC计数降低的重要因素,LPO和SOD作为判断苯、甲苯对人体危害的早期监测指标具有一定的意义。  相似文献   

5.
对31名心绞痛或陈旧性心肌梗塞的男性冠心病患者及42名健康男性进行血液检测,冠心病患者的血清过氧化脂质(LPO) 含量较健康者显著增高,而血铜,锌,硒含量及谷胱甘肽过氧化物酶(GSH—Px) 和超氧化物岐化酶(SOD) 活力均较健康者显著降低。多因素分析结果,冠心病患者血LPO与GSH-Px,SOD及硒均呈负相关;血硒含量与GSH-Px活力及血铜含量与SOD活力均呈正相关。脂质过氧化增强在冠心病的发生发展过程中可能起着重要的促进作用。  相似文献   

6.
Heroin abuse and nitric oxide, oxidation, peroxidation, lipoperoxidation   总被引:8,自引:0,他引:8  
To further reveal the risks of heroin abuse to human body, and to determine the injuries of oxidation, peroxidation and lipoperoxidation induced by nitric oxide and other free radicals to heroin abusers, we determined and compared plasma values of lipoperoxides (LPO), nitric oxide (NO), vitamin C (VC), vitamin E (VE), β-carotene (β-CAR) and erythrocyte values of LPO, superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GSH-Px) in 114 heroin abusers and 100 healthy volunteers. Using linear regression and correlation as well as stepwise regression and correlation, we also analyzed the effect of the abusing duration, and daily abusing quantity on the above-mentioned biochemical parameters in the heroin abusers. The results showed that, compared with the healthy volunteer groups, the average plasma values of LPO, and NO, and the average erythrocyte value of LPO in the heroin abuser group were significantly increased (P<0.0001), and the average plasma values of VC, VE, and β-CAR and the average erythrocyte values of SOD, CAT, and GSH-Px were significantly decreased (P<0.0001). Analysis of linear regression and correlation showed that with prolonged heroin abusing and with increased daily quantity in the heroin abusers, the plasma values of LPO, and NO, and the erythrocyte value of LPO were gradually increased (P<0.001), whereas the plasma values of VC, VE, and β-CAR and the erythrocyte values of SOD, CAT, and GSH-Px were gradually decreased (P<0.001). Analysis of stepwise regression and correlation indicated that the plasma values of NO, VC and VE were closely correlated with the abusing duration and daily abusing quantity. These results indicate that the balance between oxidation and antioxidation in the heroin abusers was seriously disturbed, and the injuries induced by nitric oxide and other free radicals, through oxidation, peroxidation and lipoperoxidation to the bodies of heroin abusers exacerbated. It is therefore necessary that in abstaining from heroin dependence, the heroin abusers should acquire sufficient quantities of antioxidants such as VC, VE and β-CAR.  相似文献   

7.
BACKGROUND: The aims of this study were to compare erythrocyte antioxidant enzyme activities, lipid peroxidation, and nitric oxide levels (NO) in women with postmenopausal osteoporosis (PMO) and non-porotic postmenopausal healthy controls and to assess the relationship between bone mineral density and these oxidant/antioxidant parameters. Additionally, in vivo effects of three different anti-osteoporotic drugs, calcitonin, risedronate and raloxifene, on the erythrocyte oxidant-antioxidant status in women with PMO were also assessed. METHODS: Postmenopausal women aged 40-65 years and without previous diagnosis or treatment for osteoporosis and independent in activities of daily living were included. Bone mineral density was measured at the lumbar spine and proximal femur using DXA. Erythrocyte enzyme activities of superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), catalase (CAT), and lipid peroxidation end-product malondialdehyde (MDA) and nitrite/nitrate levels, by product of NO, were assessed. Fifty-nine women with PMO were included (mean age 56.7 years), 44 completed course of therapy and were analyzed. Twenty-two non-porotic healthy women (mean age 55.8 years) were included as controls. RESULTS: Patients had significantly lower CAT and GSH-Px enzyme activity and higher levels of MDA and NO than non-porotic healthy controls. Proximal femur BMD measurements significantly correlated with NO levels. QUALEFFO scores improved in different levels with these short-term treatments. In all treatment groups, erythrocyte MDA levels significantly decreased; moreover, risedronate reduced NO levels and raloxifene enhanced CAT enzyme activity. CONCLUSIONS: Oxidative stress plays an important role in the pathogenesis of PMO. Studied drugs had ultimate effects on reducing lipid peroxidation. Raloxifene also had potent effects in the enhancement of antioxidant defense system.  相似文献   

8.
目的观察川芎嗪治疗老年充血性心力衰竭(CHF)的效果及对氧自由基(OFR)和脑钠素(BNP)的影响。方法选择45例正常对照组及90例老年CHF患者,并随机分为常规治疗组和川芎嗪组,两组共治疗4周,对照组及两组患者治疗前后进行血清超氧化物歧化酶(SOD)、过氧化氢酶(CAT)、丙二醛(MDA)、过氧化脂质(LPO)及BNP水平进行测定,并观察两组CHF病人治疗前后NYHA分级及心功能指标的变化。结果常规治疗组、川芎嗪组治疗前SOD,CAT水平明显低于正常对照组(P〈0.01);MDA,LPO,BNP明显高于正常对照组(P〈0.01);川芎嗪组治疗后SOD,CAT水平明显高于治疗前及常规治疗组(P〈0.01);MDA,LPO,BNP明显低于治疗前及常规治疗组(P〈0.01);两组CHF病人治疗后NYHA分级及心功能指标均得到显著改善(P〈0.01),但川芎嗪组较常规治疗组改善更明显(P〈0.01)。结论川芎嗪有明显的抗氧化作用,并能降低BNP水平,从而改善CHF患者的心功能,血浆BNP,SOD,CAT,MDA,LPO浓度为心力衰竭严重程度、判断疗效的敏感指标,值得临床推广和应用。  相似文献   

9.
10.
Objective To investigate metabolic status of nitric oxide (NO) as well as oxidative and li poperoxidative stress, pathological chain reactions of a series of free radicals , and oxidative and lipoperoxidative damages in patients with acute viral myocar ditis (AVM). Methods Using a random paired control design, plasma levels of NO, lipoperoxides (LPO), vitamin C (VC), vitamin E (VE) and β- carotene (β- CAR), erythrocytic level of LPO as well as activities of erythrocytic superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GSH- Px) were investigated by spectrophotometr ic assays in 60 AVM patients and 60 healthy adult volunteers (HAV). Results Compared with the HAV group, plasma NO, and LPO in plasma and in erythrocyte of the AVM group significantly increased (P=0. 0001), while VC, VE, β- CAR, SO D, CAT and GSH- Px of the AVM group significantly decreased (P=0. 0001). Co mpared with the AVM group before treatment, plasma NO, and LPO in plasma and in erythrocyte of the AVM group post treatment significantly decreased (P&lt;0. 05 ), whereas plasma VC, VE and β- CAR as well as erythrocytic SOD, CAT and GSH- P x of the AVM group post treatment significantly increased (P&lt;0. 05). Conclusion The findings in this study suggested that in the AVM patients the metabolism of NO was disturbed, and the pathological chain reactions of a series of free radic als were severely aggravated, thus produced the oxidative damage and lipoperoxid ative damages. Therefore, we recommend that antioxidants at suitable dosage, su ch as VC, VE, β- CAR and others, should be given to AVM patients daily to allev iate potential oxidative and lipoperoxidative damages in their bodies.  相似文献   

11.
Objective To study the relationship between abnormal reactions of free radicals in bodies of patients with acute organophosphorus pesticide poisoning (AOPP) and damages induced by free radicals. Methods 58 AOPP patients and 58 healthy adult volunteers (HAV) were enrolled in an independent samples control design, in which spectrophotometric methods were used to determine the concentrations of nitric oxide (NO) and lipoperoxides (LPO) in plasma, and LPO in erythrocytes, vitamin C (VC), vitamin E (VE) and b-carotene (b-CAR) in plasma as well as activities of superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GSH-Px) and acetylcholinesterase (AChE) in erythrocytes. Results Compared with the average values of every biochemical parameter in the HAV group, the average values of LPO in plasma and in erythrocytes, and NO in plasma in the AOPP group were significantly increased (P=0.000001), while the average values of VC, VE, a-CAR in plasma as well as SOD, CAT, GSH-Px and AChE in erythrocytes in the AOPP group were significantly decreased (P=0.000001). The findings of Pearson product-moment correlation analysis between the value of AChE in erythrocytes and the values of above biochemical parameters for 58 AOPP patients showed that there was a significant linear negative correlation between AChE in erythrocytes and LPO, NO in plasma, and LPO in erythrocytes (P=0.000001~0.001319), while there was a significant linear positive correlation between AChE in erythrocytes and VC, VE, a-CAR in plasma as well as SOD, CAT, GSH-Px in erythrocytes (P=0.000013~0.000824). The results of discriminant analysis of above chemical parameters for 58 AOPP patients and 58 HAV suggested that the correct rates of discriminant analysis were increased to 100 % when the values of AChE and LPO in plasma and in erythrocytes, or AChE and others, were jointly used for the discriminant analysis. Conclusion The findings of the present study suggest that a series of free radical reactions in AOPP patients' bodies are pathologically aggravated, and the discriminant analysis used the above biochemical parameters could markedly increase its correct rates for AOPP patients.  相似文献   

12.
INTRODUCTIONChroniccholecystitiscontaininggallstoneisacommondiseaseofdigestivesystem.Someauthorshavereportedthatlevelsofnitricoxide(NO)andlipoperoxides(LPO)inbloodofpatientswithacutecholecystitisaremarkedlyincreased,whilethoseofvitaminC(VC)andactivitieso…  相似文献   

13.
To study the relationship of oxidative, antioxidative constituents and antioxidases in blood with chronic cholecystitis containing gallstone, levels of lipoperoxides (LPO), nitric oxide (NO), vitamin C(VC), vitamin E (VE) and beta-carotene (beta-CAR) in plasma as well as level of LPO, activities of superoxide dismulase (SOD), catalase (CAT) and glutathione peroxidase (GSH-Px) in erythrocytes were investigated by spectrophotometric assay in 107 patients with this condition (PCg) and 100 healthy volunteers (HVs). Compared with HVs group, the average value of LPO and NO in plasma and that of LPO in erythrocytes of PCg group were significantly increased (P < 0.0001), while that of VC, VE and beta-CAR in plasma and the average activities of SOD, CAT and GSH-Px in erythrocytes were significantly decreased (P < 0.0001). Linear regression and correlation analysis for 107 preoperative PCg showed that the value of LPO and NO in plasma and that of LPO in erythrocytes of PCg gradually increased (P < 0.0001), representing a significant linear positive correlation. The value of VC, VE and beta-CAR in plasma and that of SOD, CAT and GSH-Px in erythrocytes of PCg gradually decreased (P < 0.0001), representing a significant linear negative correlation. Stepwise regression and correlation analysis for 107 preoperative PCg suggested that the closest correlation was observed between the course of disease and the value of NO and VC in plasma and that of SOD, GSH-Px and LPO in erythrocytes, r = 0.7306, F = 32.1408, P < 0.0001. Compared with the preoperative PCg group, the average value of LPO and NO in plasma and that of LPO in erythrocytes of the postoperative PCg group were significantly decreased (P < 0.0001). Furthermore, the average value of VC in plasma and that of SOD, CAT and GSH-Px in erythrocytes of the postoperative PCg group were significantly increased (P < 0.0001), whereas no significant difference was found between their average value of VE and beta-CAR in plasma. These findings suggested that oxidative stress was an aggravating pathological condition in PCg group. Therefore, we recommend that in treating PCg, antioxidants such as VC, VE, beta-CAR should be given in order to alleviate their potential oxidative damages.  相似文献   

14.
黄芪对高脂血症小鼠血脂及脂质过氧化的影响   总被引:1,自引:0,他引:1  
[目的]探讨黄芪对高脂血症小鼠血脂及脂质过氧化的影响.[方法]取小鼠随机分组,除正常组外的其他组小鼠灌胃给予脂肪乳剂,建立高脂血症小鼠模型,分别灌胃给予不同剂量黄芪组小鼠18.0,9.0,4.5 g/kg黄芪水提取物,连续4周,测定各组小鼠血清总胆固醇(TC)、甘油三酯(TG)、高密度脂蛋白胆固醇(HDL-C)及低密度脂蛋白胆固醇(LDL-C)含量,谷胱甘肽过氧化物酶(GSH-Px)和超氧化化物歧化酶(SOD)活性,脂质过氧化物(LPO)含量.[结果]不同剂量黄芪组小鼠血清TC,TG,LDL-C含量明显下降,SOD,GSH-Px活性明显增强,血清LPO含量明显下降.[结论]黄芪具有调节小鼠血脂代谢及增强机体抗脂质过氧化的作用.  相似文献   

15.
OBJECTIVE: To elucidate the effects of arthroscopy and intraarticular hyaluronan therapies on antioxidant enzyme activity and lipid peroxidation. METHODS: This study was conducted between January and May 2005, at the Department of Orthopedics and Traumatology, Suleyman Demirel University, Isparta, Turkey. A total of 60 patients with knee pain who were diagnosed as knee osteoarthritis according to the American College of Rheumatology (ACR) criteria were included in this study and randomly and equally divided into 4 groups. Intraarticular Hylan G-F 20 treatment was given to group 1 for 3 weeks. Intraarticular Hylan G-F 20 treatment plus oral vitamin E were administered to group 2 for 3 weeks. Only arthroscopy treatment was applied to the control group (group 3). Intraarticular Na-hyaluronate treatment was given to group 4 for 5 weeks. Blood and synovial fluid samples were taken from all the patients for biochemical analysis, and the following parameters were measured: superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), and malondialdehyde (MDA). RESULTS: There was no significant difference in blood SOD, CAT, GPx levels, and synovial SOD and GPx levels in groups treated with hyaluronan, when compared with the controls. However, there was a significant change in MDA levels in synovial fluid samples of group 1, group 2, and group 4, when compared with the controls. CONCLUSION: In knee osteoarthritis, intraarticular hyaluronan therapy following arthroscopy may diminish lipid peroxidation in synovial fluid.  相似文献   

16.
本文测定了72例急性脑血管病患者及21例健康人血过氧化脂质(LPO)、超氧化物歧化酶(SOD)及谷胱甘肽过氧化物酶(GSH-Px)。结果表明,急性脑血管病TIA组、脑梗塞组及脑出血组入院首次血浆LPO均值都高于对照组,红细胞SOD及全血GSH-Px均值低于对照组,并以脑梗塞组和脑出血组更明显。  相似文献   

17.
目的:观察沙棘果提取物对Wistar老龄鼠抗衰老作用。方法:给Wistar老龄大鼠灌胃沙棘果提取物,25d后,用生化法测定其血清超氧化物歧化酶(SOD)、谷胱甘肽过氧化酶(GSH-Px)及脂质过氧化物(LPO)的降解产物(MDA)的水平,用荧光法测定其大脑皮质脂褐素(Lipofusin)含量。结果:实验组灌胃沙棘果提取物与对照组比较,老龄大鼠体内MDA、Lipofusin含量明显下降;SOD、GSH-Px活力明显提高。结论:沙棘果提取物有降脂质过氧化的作用,有较强的抗氧化功能。  相似文献   

18.
自由基损伤对乳腺癌患者抗氧化能力影响   总被引:2,自引:0,他引:2  
对14例乳腺癌患者全血谷胱甘肽过氧化物酶(GSH-Px)、红细胞超氧化物歧化酶(SOD)的活性以及血浆脂质过氧化物(LPO)含量进行测定,结果表明乳腺癌患者GSH-Px及SOD活性均比正常人明显降低,LPO含量明显升高,GSH-PX/LPO、SOD/LPO比值也明显降低,由此可见乳腺癌患者抗氧化能力降低,清除自由基功能受损,机体受自由基过氧化损伤的威胁。  相似文献   

19.
强力宁对肝硬化患者血清生化指标改变的探讨   总被引:3,自引:0,他引:3  
目的:观察强力宁对肝硬化患者的治疗作用。方法:对40例肝硬化患者应用强力宁治疗,80ml/d,共4周,并于治疗前后检测超氧化物歧化酶(SOD)、谷光甘肽过氧化酶(GSHPx)、还原性谷光甘肽(GSH)、脂质过氧化物(LPO)、丙氨酸转移酶(ALT)和胆红素。结果:治疗前SOD、GSHPx明显低于正常人,LPO高于正常人,治疗后SOD、GSHPX增高,LPO和ALT胆红素下降。结论:揭示强力宁可作为抗氧化剂治疗肝炎后肝硬化  相似文献   

20.
郭俊华  李保平 《中原医刊》2006,33(24):15-16
目的探讨依达拉奉对脑梗死患者血清超氧化物歧化酶(SOD)、脂质过氧化物(LPO)和丙二醛(MDA)的影响。方法80例脑梗死患者随机分为常规组(常规治疗)41例和依达拉奉组(依达拉奉 常规治疗,生理盐水100m l加入依达拉奉30m g,2次/d,连续14 d)39例。检测治疗前和治疗后14 d患者血清中SOD、LPO和MDA浓度的变化,并比较两组的疗效。30例健康志愿者为对照组。结果治疗14 d后,依达拉奉组疗效显著优于常规组(P<0.01),且依达拉奉治疗后患者血清LPO和MDA的浓度较常规组明显下降(P<0.05和P<0.01),而血清SOD浓度较常规组明显回升,两者比较差异有统计学意义(P<0.01)。结论对脑梗死患者进行依达拉奉治疗可以减轻缺血脑细胞的损害,有利于病情的康复,依达拉奉能够有效地清除急性脑梗死患者体内过量生产的自由基,抑制脂质过氧化,保护细胞膜,促进神经功能恢复。  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号