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 70 毫秒
1.
参麦注射液对缺氧/缺糖/复氧诱导神经细胞凋亡的影响   总被引:1,自引:0,他引:1  
目的:探讨参麦注射液对缺氧/缺糖/复氧诱导神经细胞损伤的影响,阐明参麦注射液治疗缺血性中风急性期的脑保护作用机制。方法:用孕17~18天SD胎鼠的大脑皮层做原代神经细胞培养,制作缺氧/缺糖/复氧致神经细胞损伤模型,采用Annexin V/PI双染色法行流式细胞仪检测,定量分析参麦注射液对神经细胞凋亡和坏死百分率的影响。结果:参麦注射液能降低缺氧/缺糖/复氧原代培养神经细胞的凋亡率和坏死率。结论:参麦注射液治疗急性缺血性中风的疗效机制与提高神经细胞耐缺血缺氧能力,抑制细胞凋亡,减轻坏死有关。  相似文献   

2.
王勇  马武华  钟鸣  王可佳 《医学综述》2012,18(7):1088-1089,1095
目的建立较理想的SD大鼠胎鼠海马神经细胞体外原代培养方法。方法孕18 d(E18)SD大鼠的胎鼠,采用胰酶消化和机械分离相结合的方法进行海马神经元的原代无血清培养。结果在体外培养条件下神经细胞结构特征明显化,并能形成典型的神经细胞网络。结论该培养技术是海马神经细胞体外培养的理想方法。  相似文献   

3.
目的本文将对缺氧后亚低温对大鼠海马神经元氧糖剥夺(OGD)损伤保护作用进行研究。方法本实验拟体外培养新生SD大鼠原代海马神经元,通过培养箱缺氧同时合并培养基缺糖来模拟神经元缺血、缺氧,建立氧糖剥夺损伤模型,给予亚低温干预,研究氧糖剥夺后亚低温干预对神经元缺氧、缺糖损伤的保护作用。结果单纯OGD组细胞凋忘率最高,caspase-3活性最高。结论缺氧后亚低温对体外培养大鼠海马神经元氧糖剥夺损伤具有保护作用。  相似文献   

4.
目的研究氧化槐定碱(OSR)对原代培养新生大鼠海马神经元氧糖剥夺再灌注损伤后Glu含量与NR1表达的影响。方法以原代培养的新生大鼠海马神经元为研究对象,建立氧糖剥夺再灌注损伤模型。采用化学比色法测定神经细胞培养液中谷氨酸(Glu)的含量,Western blot方法和实时荧光定量PCR技术检测大鼠海马神经细胞NMDA受体NR1亚基蛋白和mRNA的表达。结果与氧糖剥夺再灌注损伤组比较,OSR治疗组(20、5、1.25 mg·L-1)可减少神经细胞培养液中Glu的含量(P〈0.05);OSR治疗组(20μg·L-1)可明显抑制NMDA受体NR1亚基蛋白和mRNA的表达(P〈0.05)。结论 OSR通过降低Glu含量和减少NR1表达,减轻兴奋性氨基酸毒性,对新生大鼠海马神经元缺氧损伤具有明显的保护作用。  相似文献   

5.
脑溢安颗粒剂对出血性中风大鼠CA1区神经细胞凋亡的影响   总被引:6,自引:3,他引:3  
根据Rosenberg法复制脑出血大鼠模型,采用细胞形态学、DNA裂解率、流式细胞仪方法,观察脑出血损后,大鼠海马CA1区神经元的形态结构,DNA完整性,神经细胞发生凋亡的数量;结果,实施造模手术的大鼠清醒后,均出现偏竣等神经系统病态体征。造模7天时,脑安颗粒剂组(以下简称NYA组)CA1区锥体细胞形态基本正常,模型组CA1区仍可见到多量的凋亡锥体细胞,差异具有显著性意义(P〈0.01);DNA裂  相似文献   

6.
目的:探索SD胎鼠原代脊髓神经细胞缺血再灌注损伤模型的建立方法。方法:将妊娠15 d的孕鼠处死后取出胎鼠脊髓,分离神经细胞行原代细胞培养,采用谷氨酸诱导脊髓神经损伤的方法制作脊髓缺血再灌注损伤模型,通过测定细胞活力及培养液中LDH、MDA含量确定谷氨酸的最佳浓度及作用时间,鉴定模型。结果:采用200μmol/m L谷氨酸液作用15 min可方便地制作脊髓神经细胞缺血再灌注损伤模型。结论:通过模拟谷氨酸过度释放环节,制作脊髓神经细胞缺血再灌注损伤模型,方法简便,可重复性高。  相似文献   

7.
SD乳鼠海马神经细胞原代培养方法的探讨   总被引:3,自引:0,他引:3  
目的 寻求一种简单、廉价的原代SD乳鼠海马神经细胞培养方法.方法 采用胰蛋白酶消化法制备游离海马神经细胞悬液,进行培养.结果 通过多次探索、观察、成功的进行了原代海马神经细胞培养.结论 本方法适合一般实验室开展海马神经细胞培养.  相似文献   

8.
目的建立大鼠鼠胚海马神经元原代培养的方法。方法取孕龄17-18天的Wistar大鼠腹中胎鼠,血清培养法进行海马神经元的原代培养,然后用倒置显微镜进行形态学观察和神经元特异性烯醇化酶免疫组织化学方法进行神经元的鉴定。结果培养8天后的海马神经元经形态学和组织化学方法观察证实神经细胞发育成熟。结论大鼠鼠胚海马神经元原代培养是一种新型的培养方法,具有明显的优势。  相似文献   

9.
目的:研究聪圣胶囊对大鼠原代培养皮层神经细胞拟缺血再灌注损伤的影响。方法:采用血清药理学和流式细胞仪的方法,观察聪圣胶囊含药血清对缺糖缺氧(3h)拟缺血再灌注(0,3,6,18h)损伤神经细胞乳酸脱氢酶(LDH)漏出及神经细胞凋亡率的影响。结果:聪圣胶囊含血清(2,4,8g/kg)可抑制缺糖-缺氧3h再灌(0,3,6和18h)引起的神经细胞内LDH的释放。降低缺糖-缺氧3h再灌18h导致的凋亡细胞率。结论:聪圣胶囊可减轻缺血性脑损伤。  相似文献   

10.
目的:探索体外培养原代脊髓神经细胞的方法,为研究脊髓损伤及修复的分子机制、药物作用机制提供前提条件。方法:将妊娠15 d的孕鼠处死后取出胎鼠脊髓,分离出神经细胞作为原代细胞进行培养,观察神经元细胞形态学特征,并采用DAPI和NSE双重染色对所培养细胞进行鉴定。结果:胎鼠脊髓神经细胞在体外培养生长好,纯度高,经免疫荧光鉴定,所培养细胞荧光染色符合神经细胞特点。结论:采用该实验方法进行脊髓神经细胞培养方法简便,纯度高,能满足各种神经科学研究的需要。  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 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   

18.
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   

19.
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   

20.
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   

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