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1.
目的:探讨川芎嗪对肾缺血再灌注损伤的保护作用。方法:选用大鼠一侧肾切除,对侧肾缺血60分钟动物模型,观察再灌注前、再灌注后24小时肾组织中丙二醛(MDA)含量及Na+,K+-ATPase活力的改变以及使用超氧化物歧化酶(SOD)和川芎嗪治疗对它们的影响。结果:60分钟肾缺血和再灌注导致肾皮质MDA含量显著增高,而Na+,K+-ATPase活力明显降低,用SOD和川芎嗪治疗后,肾皮质MDA含量明显低于缺血组(P值分别<0.01和0.05),Na+,K+-ATPase活力则高于缺血组(P值均<0.05)。结论:川芎嗪通过抗氧化作用干扰氧自由基对肾组织的损伤。  相似文献   

2.
摘要:【目的】在大鼠肝脏缺血再灌注模型中,观察移植沉默TSG-6基因的骨髓间充质干细胞(BMSC)对大鼠肝脏缺血再灌注损伤(HIRI)的影响。【方法】全骨髓培养法分离培养大鼠骨髓间充质干细胞,流式细胞学鉴定,慢病毒载体(LV3-shTSG-6)感染下调TSG-6基因的表达;60只SD雌性大鼠70%肝脏缺血再灌注损伤模型的建立,随机分4组,PBS组、BMSC组,shRNA-NC-BMSC组、TSG-6-shRNA-BMSC组;各组大鼠分别于恢复灌注后3、6、24h取血检测血清中ALT、AST、TNF-α、IL-6含量,恢复灌注后6h取中叶肝脏组织,WesternBlot检测TSG-6蛋白表达,切片HE染色后光镜观察肝组织显微结构。【结果】体外分离培养的BMSC状态稳定,增殖能力强,表达CD29及CD44,不表达CD34及CD45,慢病毒感染下调BMSC的TSG-6基因表达效率达73.99%;大鼠肝脏70%缺血再灌注损伤模型稳定,各时间点TSG-6-shRNA-BMSC组的ALT、AST、TNF-α、IL-6含量均高于BMSC组和shRNA-NC-BMSC组(P<0.05);BMSC组和shRNA-NC-BMSC组的ALT、AST、TNF-α、IL-6含量均低于PBS组(P<0.05);TSG-6-shRNA-BMSC组的肝脏TSG-6蛋白表达低于BMSC组和shRNA-NC-BMSC组(P<0.05),PBS组未见TSG-6蛋白表达;TSG-6-shRNA-BMSC组的肝组织损伤较BMSC组和shRNA-NC-BMSC组重,与PBS组无明显区别,BMSC组和shRNA-NC-BMSC组的肝组织损伤较PBS组明显减轻。【结论】移植BMSC能改善肝缺血再灌注损伤,移植沉默TSG-6基因的骨髓间充质干细胞削弱了其对大鼠肝脏缺血再灌注损伤的保护作用。  相似文献   

3.
川芎嗪和SOD对大鼠肾缺血再灌注损伤的保护作用   总被引:13,自引:0,他引:13  
目的 探讨川芎嗪对肾缺血再灌注损伤的保护作用。方法 选用大鼠一侧发除,对侧肾缺血60分钟动物模型,观察再灌注前,再灌注后24小时肾组织中丙二醛(MDA)含量及Na^+、K^+-ATPase活力的改变以及使用超氧化物歧化酶(SOD)和川嗪 治它们的影响。结果 60分钟肾缺血和再灌注导致肾皮质MDA含量显著增高,而Na^+、K^+-ATPase活力明显降低,用SOD和川芎嗪治疗后,肾皮质MDA含量明显  相似文献   

4.
目的:研究NO在脑缺血再灌注中对局部脑血流量和脑水肿的影响,为临床改进脑缺血的治疗提供新思路。方法:采用拴线法大鼠MCA缺血再灌注模型,利用外源性NO前体(L-arg)和NOS抑制剂(L-NAME)。将42只Wistar大鼠随机分组,在r-CBF组和脑水肿两大组中分别设有:缺血再灌注盐水组,再灌注L-arg组,再灌注L-NAME组。结果:与盐水组比较,L-arg组r-CBF明显升高(P<0.05),脑水肿显著减轻(P<0.05);L-NAME组r-CBF明显降低(P<0.05),脑水肿显著加重(P<0.05)。结论:NO对缺血再灌注脑组织有保护性作用。  相似文献   

5.
缺血再灌注大鼠心肌Fos蛋白表达及川芎嗪的作用   总被引:7,自引:0,他引:7  
李源  王跃民 《医学争鸣》1999,20(6):515-518
目的:研究大鼠心肌缺血再灌注(MIR)时Fos蛋白表达与其病理组织学改变,并观察川芎嗪(TMP)对MIR时Fos蛋白表达的作用。方法:采用大鼠MIR模型,用免疫组化ABC法检测MIR过程中不同时期Fos蛋白表达并与病得组织学改变进行对照分析.结果:(1)非缺血心肌无Fos蛋白表达,MIR60min可诱导Fos蛋白表达,90min时达高峰,主要分布在心外膜侧。(2)与MIR大鼠相比,TMP干预缺血心  相似文献   

6.
缺血预处理对缺血再灌注大鼠肝脏的保护作用   总被引:5,自引:0,他引:5  
目的 观察缺血预处理(ischemicpreconditioning,IPC)对缺血再灌注的大鼠肝脏的保护作用。方法 建立大鼠肝脏缺血再灌注(ischemia reperfusion,I/R)损伤模型,选取肝脏损伤时的典型指标:血清丙氨酸转氨酶(ALT)、天冬氨酸转氨酶(AST)、乳酶脱氢酶(LDH),肝组织中丙二醛(MDA)、过氧化物歧化酶(SOD)、组织中中性粒细胞(MNs)浸润量等,比较缺血  相似文献   

7.
缺血预处理对大鼠心肌离子泵,离子及氧自由基的影响   总被引:7,自引:2,他引:5  
目的:探讨心肌缺血预处理(Ischemic preconditioning,IPC)的心肌保护作用机制。方法:通过大鼠在低心肌缺血预处理模型,观察预处理(PC)对缺血再灌注心肌钠泵(Na^2+K^+-ATP酶)、钙泵(Ca^2+-ATP酶)活性、Na^+、Ca^2+浓度及超氧化物歧化酶(SOD)、丙二醛(MDA)的影响。结果:与单纯缺血再灌注组相比,PC组缺血再灌注心肌缺泵、钙泵的活性降低幅度小(  相似文献   

8.
探讨红景天对脑缺血再灌注时自由基损伤的保护作用,为脑缺血再灌注损伤的防治提供新的药物。方法:用4VO法复制大鼠实验模型,分为假手术组(SAM)、单纯缺血组(IS)、缺血再灌注组(IR)、药物预防后缺血再灌注组(R+IR)、缺血再灌注后药物治疗组(IR+R),分别观察了大鼠脑组织中LPO、SOD,Na^+-K-ATPase的变化。结果(1)IS组及IR组大鼠脑组织中LPO含量均显著高于SAM组(P.  相似文献   

9.
目的 观察附加0.4mmol/L N-酰半胱氨酸(NAC)心脏停搏液(NAC组)和St.Thomas液(ST组)对低温缺血再灌注幼免心肌的保护作用。方法 采用Langendorff-Neeley离体心脏缺血认120min,再灌注60min;分离出缺血再灌注幼兔左室心肌肌浆网,测定其总巯基(TSH)、非蛋白巯基(NPSH)、丙二醛(MDA)及Ca^2+-ATP酶活性。结果 NAC组,再灌注后心脏功能  相似文献   

10.
丝裂素活化蛋白激酶在大鼠心脏缺血预处理中的作用   总被引:7,自引:1,他引:6  
目的 探讨丝裂素活化蛋白激酶家系(MAPKs)在大鼠心脏缺血预处理(IPC)保护中的作用。方法 在离体灌注的SD大鼠心脏缺血/再灌注(I/R)模型上,观察ICP对于I/R后损伤的影响,并观察MAPKs中三种激酶(细胞外信号调节激酶(ERKs)、蛋白激酶P38(P38)、应激活化蛋白激酶(SAPK))活性的变化及其佤保护作用的关系。结果 IPC明显改善大鼠I/R后的心脏功能,减少I/R造成的心肌肌酸  相似文献   

11.
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   

12.
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   

13.
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   

14.
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   

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16.
目的 探讨猪肺磷脂注射液联合经鼻持续气道正压通气(NCPAP)对呼吸衰竭早产儿的临床疗效及肌酸激酶同工酶活性(CK-MB)的影响.方法 选取呼吸衰竭早产儿80例,分为观察组和对照组各40例.对照组采用NCPAP给氧治疗,观察组给予NCPAP给氧联合猪肺磷脂气管内给药.观察两组患儿治疗前及治疗12h、24 h后PaO2、PaCO2、血氧饱和度(SaO2)、pH的变化情况,检测治疗前及治疗5d后血清CK-MB水平;评估两组患儿的临床治疗效果.结果 两组患儿PaO2、PaCO2、SaO2、pH比较,差异均有统计学意义(P<0.05),其中观察组治疗后的PaO2、SaO2、pH均高于对照组,PaCO2则低于对照组.两组的PaO2、SaO2、pH均随观察时间延长而升高(P<0.05),PaCO2均随观察时间的延长而降低(P<0.05).观察组治疗有效率为87.5%,显著高于对照组的70.0% (P <0.05).治疗5d后两组患儿血清CK-MB水平均较前降低(P<0.05),且观察组明显低于对照组(P<0.05).结论 猪肺磷脂注射液气管内给药联合NCPAP可以显著降低呼吸衰竭早产儿CK-MB的含量,提高治疗有效率,起到很好的呼吸循环支持作用.  相似文献   

17.
Evidence obtained from randomized controlled trials (RCTs) has been generally accepted as the gold standard in the evaluation of clinical effectiveness. Readers need to understand the trial design, implementation, results, analysis and interpretation, so as to fully Jnderstand the results of RCTs. Thus, the investigators of RCTs have to report these items in a complete, accurate and clear manner. Since 1998, we have conducted several evaluations on the reporting quality of RCTs published in Chinese journals on traditional Chinese medicine (TCM) and results have shown that there is an urgent need for higher quality RCTs on TCM.  相似文献   

18.
Ankylosing spondylitis is a chronic and progressive disorder with inflammation mainly involving the central axis joints. It mainly affects the cervical spine and the lumbosacral area, with the pathogenesis closely related to the kidney and the Governor Vessel (GV). TCM holds that the syndrome is deficiency in origin and excess in superficiality, which is due to insufficiency of the kidney, deficiency of GV, and blocking of the channels with the invasion of exogenous evil, leading to poor circulation of qi and blood and malnutrition of the bones, muscles and joints. The TCM method of tonifying the kidney and strengthening GV to regulate circulation of qi and blood and check the arthralgia pain should be adopted, with the Kidney-Tonifying and GV Strengthening Decoction (益肾强督汤) prescribed.  相似文献   

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CHEMOTHERAPY playsa greatrolein the treat- ment of malignanttumors,especiallyingynecolo- gicalones.But inanticancerchemotherapy,leuko-cytopeniaisfrequentlytheprimarydose-limitingsideeffect factor.Moreover,cancersarefrequentlychemoresistantbe-causeof overexpressionof P-glycoprotein(P-gp), which isencodedby multidrugresistancegene (MDR1 ) and detectableinup to50% ofhuman cancersand renderscellsresistancetoanticancerdrugs.The safetyand potentialtherapeuticbenefitof mdr1 gene transferredto h…  相似文献   

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