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1.
目的:探讨提高血氧分压在4℃保存条件下对不同储存期红细胞的影响。方法:在无菌条件下,分别对采集0d,7d,14d,21d的库存血进行无菌氧处理以提高血氧分压。分实验组和对照组,测定血液红细胞在提高血氧分压后的血浆游离Hb浓度,血浆K^+离子浓度,红细胞超氧化物歧化酶(SOD)活性,谷胱甘肽过氧化物酶(GSH—Px)活性。结果:与对照组比较,在4℃保存条件下,血液红细胞在提高血氧分压初期(1—2d),血浆游离Hh浓度和血浆K^+离子浓度无明显变化(p〉0.05),红细胞SOD活性、红细胞GSH—Px活性有所提高(p〈0.05);随着储存时间的延长,血浆游离Hb浓度增加、血浆K^+离子浓度增高(p〈0.01),红细胞SOD活性和红细胞GSH—Px活性降低(p〈0.01)。结论:(1)不同储存期红细胞能保持较高血氧分压和血氧保和度;(2)血液红细胞在提高血氧分压的初期不会产生明显的溶血反应和其它损伤,红细胞抗氧化酶活性有所提高。随着储存时间的延长,红细胞抗氧化酶活性下降,溶血反应加重,存在红细胞膜氧化损伤作用,这与氧自由基攻击红细胞膜发生过氧化反应及红细胞抗氧化酶活性降低有关。  相似文献   

2.
本文报道对31例老年冠心病患者服用SOD强化刺梨汁前后血浆丙二醛(MDA)含量、红细胞超氧化物歧化酶(SOD)和硒谷胱甘肽过氧化物酶(SeGSH-Px)活性的测定。结果表明,服药后与服药前比较,血浆MDA含量显著降低(P<0.05);红细胞SOD活性升高,但无显著性(P>0.05);SeGSH-Px活性明显升高(P<0.01),提示SOD强化刺梨汁具有不同程度地升高两种抗氧化酶活性的作用,能明显抑制冠心病患者体内的脂质过氧化作用。  相似文献   

3.
癫痫患者血浆及红细胞中抗氧化剂水平的测定   总被引:8,自引:0,他引:8  
目的:探讨癫痫疾病状态下血浆及红细胞(RBC)中抗氧化剂水平的变化。方法:测定39例正常对照组、32例癫痫疾病组和26例癫痫治疗组的RBC内谷胱甘肽还原酶(GR)、谷胱甘肽过氧化物酶(GSH-Px)、超氧化物歧化酶(SOD)和过氧化氢酶(CAT)、红细胞膜过氧化脂质代谢产物丙二醛(MDA)、红细胞溶血百分率以及血浆中铜蓝蛋白(CER)、维生素A,C,E(VitA、VitC、VitE)等。结果:疾病组的红细胞MDA,溶血百分率,GSH-Px,CAT及血浆CER显著高于对照组(P<0.05),红细胞GR、SOD和血浆VitA,VitC,VitE显著低于对照组(P<0.05,其中红细胞GR,血浆维生素C,P<0.01);治疗组的红细胞GR,SOD,血浆VitC,VitE均显著高于疾病组(P<0.05,其中GR,P<0.01)。结论:提示采取抗氧化保护措施对患者的治疗有重要意义。  相似文献   

4.
目的:探讨癫痫疾病状态下血浆及红细胞(RBC)中抗氧化剂水平的变化。方法:测定39例正常对照组、32例癫痫疾病组和26例癫痫治疗组的RBC内谷胱甘肽还原酶(GR)、谷胱甘肽过氧化物酶(GSH-Px)、超氧化物歧化酶(SOD)和过氧化氢酶(CAT)、红细胞膜过氧化脂质代谢产物丙二醛(MDA)、红细胞溶血百分率以及血浆中铜蓝蛋白(CER)、维生素A,C,E(VitA、VitC、VitE)等。结果:疾病组的红细胞MDA,溶血百分率,GSH-Px,CAT及血浆CER显著高于对照组(P<0.05),红细胞GR、SOD和血浆VitA,VitC,VitE显著低于对照组(P<0.05,其中红细胞GR,血浆维生素C,P<0.01);治疗组的红细胞GR,SOD,血浆VitC,VitE均显著高于疾病组(P<0.05,其中GR,P<0.01)。结论:提示采取抗氧化保护措施对患者的治疗有重要意义。  相似文献   

5.
目的:观察表没食子儿茶表没食子酸酯(EGCG)对缺血再灌注损伤大鼠心肌脂质过氧化及心肌酶活性的影响。方法:雄性Wistar大鼠50只分为5组,假手术组、缺血再灌注组(IR),丹参(SM,100mg/kg)组,EGCG1(10mg/kg)组和EGCG2(20mg/kg)组,每组10只动物,采用结扎大鼠左冠状动脉前降支30min后再灌注60min的方法建立在体缺血再灌注损伤模型,分别测定心肌丙二醛(MDA)含量,超氧化物歧化酶(SOD)及ATP酶活性和血浆乳酸脱氢酶(LDH)水平。结果:与假手术组比,IR组大鼠心肌MDA及血浆LDH明显升高,SOD及ATP酶活性则显著降低(P<0.01);EGCG和SM均能显著,降低MDA与LDH,明显增加SOD与ATP酶活性(与IR组比,P<0.01),并且EGCG(20mg/kg),降低MDA与LDH的作用较SM(100mg/kg)更明显(P<0.05)。结论:EGCG通过抑制脂过氧化反应和提高心肌SOD与ATP酶活性,对大鼠缺血再灌注损伤心肌有显著的保护作用。  相似文献   

6.
通心络治疗冠心病疗效观察及其机制初步探讨   总被引:7,自引:0,他引:7  
杨昆 《海南医学》2003,14(2):20-21
目的 观察通心络胶囊对25例冠心病患者的疗效,并探讨其作用机制。方法 45例冠心病患者随机分为通心络治疗组23例及对照组(常规治疗)22例,观察治疗前后临床症状心电图、胆固醇、甘油三脂、低密度脂蛋白、血浆纤维蛋白原、血浆丙二醛(MDA)及红细胞超氧化物歧化酶(SOD)等指标,并进行评估。结果 经过4周治疗后,通心络治疗组临床症状、心电图、胆固醇、血浆纤维蛋白原等指标的改善优于对照组,血浆丙二醛(MDA)含量降低比对照组明显,而红细胞超氧化物歧化酶(SOD)活性则明显高于对照组。结论 通心络对冠心病具有较好的疗效,其作用机制可能与该药有保护SOD活性,清除氧自由基,从而减少氧自由基对细胞膜的损伤有关,且能降低血脂,降低纤维蛋白原,对改善血液流变学有利。  相似文献   

7.
穆旭  李金 《重庆医学》2015,(35):4932-4935
目的:探讨肉桂酸对提升小鼠运动耐力的影响。方法通过建立力竭性游泳来建立小鼠力竭性运动模型,比较安静对照组、运动训练组和运动给药组小鼠力竭游泳持续时间,血浆中乳酸(LAC)含量来探讨肉桂酸对小鼠的耐力提升;检测肝脏组织匀浆中超氧化物歧化酶(SOD)、丙二醛(MDA)和过氧化酶(CAT )的含量来探讨肉桂酸的抗氧化能力,通过Western blot方法检测肉桂酸对小鼠股四头肌中Na+/K+‐ATP酶、Ca2+/Mg2+‐ATP酶表达水平来进一步研究其对小鼠运动能力提升的影响。结果肉桂酸显著延长小鼠的游泳时间;运动给药组与安静对照组比较:血浆 LAC含量虽然有所升高,但差异无统计学意义(P>0.05),肝脏组织匀浆中SOD和CAT 显著下降(P<0.05),MDA显著上升(P<0.01),CAT 虽下降但差异无统计学意义(P>0.05),Na+/K+‐ATP酶和Ca2+/Mg2+‐ATP酶的表达水平显著下降(P<0.01);运动训练组与安静对照组比较,血浆LAC含量显著升高(P<0.01),肝脏组织匀浆中SOD和CAT 显著下降(P<0.01),MDA显著上升(P<0.01),Na+/K+‐ATP酶和Ca2+/Mg2+‐ATP酶的表达水平显著降低(P<0.01);运动给药组与运动训练组比较,血浆LAC含量显著降低(P<0.01),肝脏组织匀浆中SOD和CAT显著上升(P<0.01),MDA显著下降(P<0.01),CAT 显著下降(P<0.01),Na+/K+‐ATP酶和Ca2+/Mg2+‐ATP酶的表达水平显著降低(P<0.05)。结论肉桂酸具有良好的抗氧化能力和抗疲劳能力。  相似文献   

8.
增力祛疲口服液对大鼠运动性疲劳的作用   总被引:1,自引:0,他引:1  
目的:探讨增力祛疲口服液抗运动性疲劳作用的机制。方法:将30只雄性SD大鼠随机分成正常对照组、疲劳对照组和口服液组,每组10只,选用游泳训练导致大鼠运动性疲劳模型,用组织学观察、生化测定和细胞化学分析等方法,研究3组大鼠骨骼肌组织结构和线粒体中脂质过氧化物(LPO)、Ca^2+、K^+含量以及血清中睾酮(T)、皮质醇(C)、T/C值、超氧化物歧化酶(SOD)、丙二醛(MDA)、肌红蛋白(Mb)的变化。结果:与正常对照组比较,疲劳对照组大鼠血清中T/C值、SOD、Mb和线粒体中Ca^2+、K^+均降低,而血清MDA和线粒体LPO升高(P〈0.05);与疲劳对照组比较,口服液组大鼠上述指标均改善。结论:该药有利于骨骼肌组织疲劳后的功能恢复,有增强抗疲劳的作用,  相似文献   

9.
目的探讨回春汤对D-半乳糖衰老模型小鼠抗氧化系统的影响。方法将小鼠随机分为空白组、衰老模型组、维生素E组、回春汤大、小刺量组5组,采用灌胃给药6周后测定指标。选用:血浆丙二醛(MDA)含量、红细胞超氧化物歧化酶(S0D)活力、肝组织谷胱甘肽过氧化物酶(Gsh-Px)活力为指标,观察回春汤对D-半乳糖衰老模型小鼠抗氧化系统的影响。结果回春汤2个剂量组均能提高D-半乳糖所致衰老小鼠的红细胞SOD活力、肝组织谷胱甘肽过氧化物酶(GSH—PX)活力,降低血清MDA含量。结论回春汤具有良好的抗氧化作用,有助于延缓衰老过程。  相似文献   

10.
本文通过结扎大鼠两则颈总动脉30min后再8灌注1小时,造成海马缺血再灌注损伤模型,观察脑活素对大鼠脑缺血再灌注损伤的影响。海马缺血再灌注时超氧化物歧化酶(SOD)Na^ —K^ ATPase,Ca^ 2—ATPase的活性均降低;丙二醛(MDA)含量增高;预防性应用脑活素可以明显增加总抗氧化活性,降低MDA含量。结果提示脑活素具有抗氧化作用,对脑缺血再灌注损伤具有保护作用。  相似文献   

11.
Objective: To evaluatel the value of D-dimers in patients with acute aortic dissection (AAD). Methods: This study consisted of 16 patients with AAD and 27 non-AAD patients. Serum D-dimets were measured by Sta-Liatest D-DI immunoturbidimetric assay. Results: D-dimer level was higher (P < 0.001) in patients with AAD(7.91 ± 5.52 μg/ml) than that in non- AAD group(1.57±1.24 μg/ml). D-dimer was positive (>0.4 μg/ml) in all patients with AAD and in 10 control group patients (37%). Among patients with acute AAD, D-dimers tended to be higher in Stanford A than in Stanford B (8.67 ± 4.31 μg/ml vs. 3.24±1.27 μg/ml, P <0.01). D-dimer values tended to be higher in more extended disease(3.84 ± 1.65 μg/ml, 8.57 ± 3.58 μg/ml and 11.87 ± 5.69 μg/ml in thoracic aorta, thoracic and abdominal aorta, thoracic and abdominal aorta and iliacal arteries, respectively, P < 0.05 for both 8.57 ± 3.58 and 11.87 ± 5.69 vs. 3.84 ± 1.65 ). Including the control group into the analysis, we found a sensitivity of 100%, a negative predictive value of 100%, and a specificity of 66% and a positive predictive value of 64% for D-dimer in diagnosis of AAD in our patients with suspected AAD. Conclusion: D-dimer was elevated in patients with AAD. A negative D-dimer test result could be useful in excluding AAD.  相似文献   

12.
Objective: To set up a simple and reliable rat model of combined liver-kidney transplantation. Methods: SD rats served as both donors and recipients. 4℃ sodium lactate Ringer's was infused from portal veins to donated livers,and from abdominal aorta to donated kidneys, respectively. Anastomosis of the portal vein and the inferior vena cava (IVC) inferior to the right kidney between the graft and the recipient was performed by a double cuff method, then the superior hepatic vena cava with suture. A patch of donated renal artery was anastomosed to the recipient abdominal aorta. The urethra and bile duct were reconstructed with a simple inside bracket. Results: Among 65 cases of combined liver-kidney transplantation, the success rate in the late 40 cases was 77.5%. The function of the grafted liver and kidney remained normal. Conclusion: This rat model of combined liver-kidney transplantation can be established in common laboratory conditions with high success rate and meet the needs of renal transplantation experiment.  相似文献   

13.
FOR anesthesiologis s ,treatingpostoperativepainhas alwaysbeen a problem.Althoughopioidshave been provedtobe effective,theirsideeffectscouldnotbeignored.With thedevelopmentofscienceand pharmacology,many drugs with aspectsof satisfactoryanalgesicefficacyand couldbe welltoleratedby patientshave been developed.And lornoxicamisone of them, which isa non-steroidalanti-inflammatorydrug (NSAID ), with analgesic, anti-infl-ammatory,andantipyreticproperties.Itseliminationhalf-time(3 to 5 hours) isle…  相似文献   

14.
目的:评价使用安心颗粒对急诊经皮冠状动脉介入术(PPCI)术后生活质量的影响.方法:将160例接受PPCI的急性ST段抬高型心肌梗死患者随机分为安心颗粒组(术前顿服安心颗粒8.8g,术后安心颗粒4.4 g/次,每日2次)和对照组(仅接受基础药物治疗).所有患者均服用阿司匹林、氯吡格雷和阿托伐他汀.分别在入院时、出院前1d、出院后180 d时,应用心肌梗死多维度量表(MIDAS)、中文版SF-36评价量表对患者生活质量评分.并观察术后30 d以内的出血并发症、血小板减少症发生情况.结果:入院时和出院前1d,两组患者的心肌梗死MIDAS、SF-36量表评分比较无差异(P>0.05);出院后180 d时,与对照组比较,安心颗粒组MIDAS、SF-36评分明显减低(P<0.05);组内与入院时比较,两组出院前1d、出院后180 d时,MIDAS、SF-36评分均降低(P<0.05).两组患者在随访期间均无大量出血、少量出血、重度和极重度血小板减少症发生,安心颗粒组有4例、对照组有7例发生不明显出血(P>0.05).两组发生轻度血小板减少症的患者数比较无差异(P>0.05).结论:PPCI使用安心颗粒,能改善急性ST段抬高型心肌梗死患者的生活质量,且不增加出血风险.  相似文献   

15.
Objective:To investigate the influences of urapidil and nicardipine on rabbit sinus function,atrio-ventricular node function and hemodynamics.Methods:Thirty-two Angora's rabbits were selected and randomly divided into four groups.U1 group:urapidil 0.25 mg/kg;U2 group:urapidil 0.5 mg/kg;N1 group:nicardipine 10 μg/kg;N2 group:nicardipine 20 μg/kg.All these medicine were administrated within 30 seconds.Measurements were taken before and after the administration of urapidil or nicardipine for the following data:mean blood pressure(MAP),heart rate(HR),sino-atrial conduction time(SACT),maximal sinoatrial recovery time(SNRTmax)corrected sinus node recovery time(CSNRT),index of sinus node recovery time(SNRTI),Wenckebach A-V conduction frequency (WB),and P-R interval.Results:Significant MAP and HR changes were identified in all of the four groups before and after administration of both urapidil and nicardipine.No significant changes could be found in the rest of the parameters.Intergroup analysis showed that SACT and CSNRT of N1 and N2 groups were shorter than those of the U2 group(P<0.01);the MAP decreased(P<0.01)and the HR increased drastically(P<0.01).Conclusions:Neither urapidil(0.25 mg/kg,0.5 mg/kg)nor nicardipine(10μg/kg,20μg/kg)has any significant influence on rabbit sinus function or rabbit atrio-ventricular node function.Nicardipine could be a better choice than urapidil for parafunctional sinus node patients.  相似文献   

16.
Objective:To investigate the gene expression of osteoprotegerin(OPG) and osteoclast differentiation factor(ODF) in the bone tissue of patients with hip fracture due to osteoporosis. Methods:OPGmRNA and ODFmRNA in the bone tissue in 50 cases of osteoporosis sufferers(over 50 years old) with hip fracture(Observer Group) and 30 cases of hip facture sufferers with no osteoporosis(Control group) were analyzed with the Semi-Quantitative RT-PCR method. Results:The mRNA expressed of ODF, OPG were both high in the patients with hip fracture. In the control group, the expression of OPG mRNA was observed, while the expression of ODF mRNA was very slight. Conclusion:Aged patients contained all signals including OPG, ODF that are essential for inducing osteoclastogenesis and promoting bone resorption.  相似文献   

17.
Objective: To observe the therapeutic effects in acupunture treatment of primary dysmenorrhea combined with spinal Tui Na, and study its mechanism. Methods: Thirty cases of the treatment group were treated by acupuncture combined with spinal Tui Na, and thirty cases in the control group were treated by routine acupuncture. Results: The total effective rate was 93.3% in the treatment group, and 73.3% in the control group, with a significant difference between the two groups (P<0.05). Conclusions: Acupuncture combined with spinal Tui Na has good prospects for treatment of primary dysmenorrhea.  相似文献   

18.
In treating chronic nephropathy,Luo Lingjie,a chief physician,pays attention to regulating the balance between yin and yang,treating infection if present,and removing pathogenic factors.He prescribes gentle drugs and uses carefully strongly warming-tonifying ones,emphasizes the importance of persuading the patient to persist in treatment with medication and nurse one's health for recuperation,and is good at combined use of TCM and western medicine therapy and brings the merits of various therapies into full play,with obvious theraoeutic effects.  相似文献   

19.
Dr.Zhang Ren,the chief physician,is the chairman of Shanghai Acupuncture and Moxibustion Association.Having been engaged in medicine for about 40 years,he is experienced in treating various intractable diseases.In his long years of clinical practice,he advocates taking the TCM differentiation as the basis to seek for the acupuncture method for treatment of modern intractable diseases.The author of this essay had the fortune to follow Dr.Zhang in study.The following is a summary of Dr.Zhang's experience in the acupuncture treatment for different intractable diseases with the same therapeutic principle.  相似文献   

20.
Objective:To investigate the clinical features, pathological characteristics and immunophenotype of solid-pseudopapillary tumor of the pancreas(SPTP). Methods:Nine surgically treated cases of SPTP were retrospectively reviewed. Hematoxylin and Eosin(HE) staining and immunohistochemical staining were used to analyze all cases, and the general clinical data was collected. Results:Six patients were asymptomatic except for a palpable mass. Two patients complained of vague-epigastric pain. One patient appeared jaundice. The tumor was encapsulated and solid tissues alternately with cystic tissues. Histologically, the histological structure of solid portion was pseudopapillary with a fibrovascular core. Tumor cells were uniform and medium-sized which were arranged in sheets ets or nests or pseudopapillary patterns. Immunohistochemical studies demonstrated that SPTP proved positive in vimentin(9/9 cases), AAT(9/9 cases), NSE(9/9 cases), ACT(7/9 cases), CK20(2/9 cases), CgA(1/9 cases), S-100(3/gcases), PR(4/gcases), Syn(3/9 cases) and CD56(5/9cases), negative in CEA and ER. Conclusion:SPTP is a tumor predominantly occurring in young women frequently without special symptoms. This tumor has various characteristical histological patterns with different immunophenotype.  相似文献   

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