血管性抑郁症的研究

目的 比较血管性抑郁症和非血管性抑郁症的临床特征和不同药物的治疗疗效.方法 采用自变量表分别对血管性抑郁症组和非血管性抑郁症组60例的发病年龄、起病形式、诱发因素、临床特征进行分析比较;并给予百忧解20 mg qm;30例血管性抑郁症患者联合血管活性药物及脑代谢剂,引用HAMD、MMSE与入院时、4周、8周进行评定,并逐一比较.结果 本研究显示血管性抑郁症患者发病年龄相对高,多数有诱因,睡眠障碍明显,焦虑躯体症状多,有较严重的阻滞及自杀倾向,合并一定认知功能障碍,对血管性抑郁症组中30例应用脑代谢剂,血管活性药物及抗抑郁剂,疗效明显优于血管性抑郁症组中单用抗抑郁药物,与非血管性抑郁症组相似.结论 血管性抑郁症采用血管性药物、脑代谢剂联合抗抑郁药物疗效明确,为临床治疗另辟新途径.     

车菱精纯克栓酶治疗脑梗塞临床疗效观察

本组采用车菱精纯克栓酶治疗脑梗塞３０例结果表明，发病早期使用车菱精纯克栓酶疗效显著，梗塞容积小疗效显著，车菱精纯克栓酶为治疗脑梗塞开辟了新的途径。     

CD4+CD25+调节性T细胞与系统性红斑狼疮病情活动性关系的研究

目的：检测系统性红斑狼疮患者外周血CD4^＋CD25^＋、CD4^＋CD8^＋调节性T细胞亚群，探讨其与疾病活动性、肾脏损伤、血清抗ds-DNA抗体及免疫球蛋白和补体C3含量的关系。方法：采用流式细胞术检测北京协和医院住院和门诊SLE患者（n=37）外周血CD4^＋CD25^＋T、CD4^＋CD8^＋T细胞群比例，以15例RA和15例SS组成自身免疫性疾病对照，30例健康体检者作为正常对照，观察调节性T细胞亚群与SLE患者疾病活动性指标SLEDAI、IgG、C3及血清抗ds-DNA抗体的关系。结果：①疾病活动期SLE患者外周血CD4^＋CD25^＋调节性T细胞群比例显著低于正常对照组（P〈0.01），疾病稳定期和风湿性疾病对照组与正常对照组结果差异无统计学意义。疾病活动期和稳定期SLE患者CD4＋CD8＋T细胞群比例都略高于正常对照组，但未发现结果差异有统计学意义（P〉0.05）。②疾病活动期SLE患者外周血CD4^＋CD25^＋T细胞比例及CD4^＋CD25^＋/CD4^＋值显著低于稳定期患者（P〈0.01）。SLE患者外周血CD4^＋CD25^＋/CD4^＋值与SLEDAI、补体C3呈低度相关（r分别为-0.491、0.368，P〈0.05），CD4^＋CD25^＋T细胞数量与SLEDAI呈负相关（r=-0.578，P〈0.05）。③SLE并发肾病组外周血CD4^＋CD25^＋T细胞群比例及CD4^＋CD25^＋/CD4^＋值显著低于非肾病组（P〈0.01；P〈0.05）。同一SLE患者治疗前后CD3^＋CD4^-CD8^-细胞和NK细胞降低，CD4^＋CD25^＋细胞、CD4^＋CD25^＋/CD4^＋值及CD8^＋T细胞增加，但未发现这些结果差异有统计学意义。本次研究未发现NK细胞、CD4^＋CD8＋T细胞、CD4^＋CD25^＋T细胞群比例在ds-DNA＋组与ds-DNA-组之间结果差异有统计学意义。结论：SLE患者外周血CD4^＋CD25^＋T细胞群比例与SLEDAI成负相关，与肾脏的损害也有密切关系，但与血清抗ds-DNA抗体产生的关系不明显。活动期SLE患者外周血CD4^＋CD25^＋T细胞减少，稳定期CD4^＋CD25^＋T细胞比例回升，因此推测CD4^＋CD25^＋T细胞的变化可能是导致疾病发生和病情发展及相关器官（如肾脏）损伤的关键环节之一。     

肺心病吸氧时呼吸衰竭诊断的回顾性研究

呼吸衰竭的诊断以呼吸空气时动脉血气测定PaO_2<8kPa、PaCO_2>6.65kPa 二个客观指标。但是,     

百多邦治疗隐翅虫皮炎70例疗效观察

我院2004年6月至2006年8月应用百多邦(化学名为莫匹罗星)软膏和炉甘石洗剂(本单位制剂室生产),外用治疗隐翅虫皮炎,取得较好疗效。现报告如下。1资料与方法1.1临床资料132例隐翅虫皮炎患者均为本门诊部患者,其中男性76例,女性56例。随机分为2组,百多邦治疗组70例,其中男41例,女     

帕金森病伴认知障碍患者血尿酸的变化及相关因素分析

目的：探讨帕金森病伴认知障碍与患者血尿酸变化的关系,分析影响帕金森病伴认知障碍的相关因素。方法：选择2014年1月至2016年12月诊治的60例帕金森病患者,使用蒙特利尔认知评估量表（MoCA）评估患者的认知障碍程度,并进行Hoehn&Yahr帕金森病严重度分级（H-Y）。对患者年龄、性别、病程、受教育程度等资料进行逐步多因素回归分析,探讨患者发生认知障碍的相关因素;检测患者的血尿酸、尿微量白蛋白等水平,并与健康人（60例）对比,分析帕金森病伴认知障碍与血尿酸变化的关系。结果：帕金森病组血尿酸平均水平为（258.0±55.6） μmol/L,低于健康组［（328.6±50.8） μmol/L］,差异有统计学意义（P<0.05）。帕金森病组与健康组及帕金森病不同分期患者的尿微量白蛋白水平差异无统计学意义。早期帕金森病患者血尿酸水平与中晚期帕金森病患者差异无统计学意义。合并认知障碍的帕金森病患者血尿酸平均水平为（235.6±65.3） μmol/L,明显低于未合并认知障碍者［（272.3±60.3） μmol/L］,差异有统计学意义（P＜0.05）。帕金森病患者MoCA评分与其血尿酸水平、受教育年限正相关,与患者的病程、H-Y分级负相关。结论：血尿酸可能参与帕金森病患者认知障碍的发生,对血尿酸水平进行干预有助于延缓患者的病程。     

三七皂甙联合阿司匹林预防脑梗死复发疗效观察

目的:探讨三七皂甙联合阿司匹林预防脑梗死复发的临床疗效.方法:2006年10月至2007年10月江阴市人民医院神经内科住院患者,明确诊断为急性脑梗死患者221例,随机分两组:对照组:阿司匹林100mg,每日一次口服,101例患者(男65例,女56例),观察组:120例患者(男68例,女52例).三七皂甙片200mg,每日3次口服;阿司匹林100mg,每日1次口服.观察2组1年内缺血性脑卒中的发生率,并于治疗后分别检测组血小板聚集率.结果:观察组1年内脑梗死再发率(5.83%)与对照组相比(17.82%),差异有统计学意义(P<0.05).治疗后观察组与对照组血小板聚集率相比,差异不具有统计学意义(P>0.05).结论:三七皂甙与阿司匹林联用,对预防缺血性卒中复发效果优于单用阿司匹林,可能与三七皂甙降低血小板聚集率,减少阿司匹林抵抗有关.     

系统性红斑狼疮患者树突状细胞CD11c^＋，CD123^＋亚群与疾病活动性的关系

目的 探讨系统性红斑狼疮(systemic lupus erythematosus,SLE)患者外周血树突状细胞CD11c+,CD123+亚群与疾病活动性、肾脏损伤及血清抗ds-DNA抗体产生的关系.方法 选定SLE疾病组51例、疾病对照组30例(类风湿关节炎、舍格伦综合征患者各15例)和正常对照组30例,采用流式细胞术检测上述指标.结果 ①SLE患者外周血树突状细胞CD11c+,CD123+亚群比例均显著低于正常对照组(P<0.01),而疾病对照组与正常对照组之间差异无统计学意义(P>0.05).②疾病活动期SLE患者外周血树突状细胞CD123+亚群比例显著高于稳定期患者(P<0.01),而两者CD11c+亚群比例之间差异无统计学意义(P>0.05).③SLE肾病组外周血树突状细胞CD123+亚群比例显著高于非肾病组患者(P<0.01),两者CD11c+亚群比例之间差异无统计学意义(P>0.05);ds-DNA+组SLE患者外周血树突状细胞CD11c+,CD123+亚群比例均显著低于ds-DNA-组(P<0.05).结论 树突状细胞CD11c+,CD123+亚群的变化可能是SLE发病机制中的关键环节之一.     

不同流式细胞分析系统对外周血淋巴细胞亚群分析结果的影响

目的 探讨部分临床实验室FCM淋巴细胞亚群分析参考范围应用的合理性及不同生产厂家的流式细胞仪和试剂组合对淋巴细胞亚群分析结果的影响.方法 根据国内临床实验室常用的3个流式细胞仪型号(Beckman Coulter Epics XL、Beckman Coulter Cytomics FC500、BD FACS Calibur),分别选取3家北京地区临床流式细胞室(A、B、c室),按照各室的实际检测方案分别测定50份健康人静脉血标本,以验证各室淋巴细胞亚群分析参考范围是否合理.调查3家实验室室内全血质控品使用情况,并将商品化全血质控品分发各室,按照各自的实际实验方案在20个工作日内与常规标本平行处理、检测和分析.针对不同生产厂家的试剂,在同一流式细胞仪(型号为Beckman Coulter Epics XL)上用a、b、c、d 4种不同的试剂组合对20份患者标本进行检测,其中试剂组合a为美国Beckman Coulter公司同厂配套试剂和仪器,试剂组合b、c、d的检测结果分别与试剂组合a比较,计算b、c、d试剂组合偏倚>10%的概率.采用相同试剂和溶血素(美国Beckman Coulter公司)对24份患者标本进行前处理,分别在2台不同厂家和型号的流式细胞仪(型号为Beckman Coulter Epics XL和BD FACS Calibur)上检测,比较相同试剂处理标本后不同仪器对淋巴细胞亚群分析结果的影响.采用同厂配套试剂和仪器,比较Beckman Coulter Epics XL和BD FACS Calibur两个流式细胞检测系统对20份患者标本检测结果的影响.结果 A室的自然杀伤(NK)细胞及CD+4 T淋巴细胞/CD+8 T淋巴细胞(T4/T8),B、c两室的T4均有大于10%的结果落在相应的参考范围之外,超出相应参考范围的概率分别为16%(9/50)、24%(12/50)、22%(11/50)、12%(6/50).3家实验室20个工作日内的室内质控均在参考范围内.与试剂组合a比较,试剂组合b、c的所有项目偏倚均较大,其中偏倚>10%的概率最低为试剂组合b的T8,为70%(14/20);最高为试剂组合b、c的T淋巴细胞(T3)、T4,均达到100%(20/20).试剂组合d的T3、T8和B淋巴细胞(B)偏倚较大,偏倚>10%的概率分别为35%(7/20)、85%(17/20)、75%(15/20).不同生产厂家的试剂、仪器处理和分析标本的结果,与采用同一生产厂家的试剂、仪器处理和分析的结果相比,T3、T4、T8、B、NK均存在较大偏倚,偏倚>10%的概率分别为71%(17/24)、80%(19/24)、38%(9/24)、33%(8/24)、92%(22/24).Beckman Coulter Epics XL和BD FACS Calibur两个流式细胞检测系统相比较,T8、NK和B的偏倚均较大,偏倚>10%的概率分别为55%(11/20)、70%(14/20)、55%(11/20).结论 流式细胞实验室需要建立自己的参考范围并定期验证,以便合理进行调整.建议定期采用全血质控品,并累计质控数据.各实验室应选择同厂配套试剂处理标本.

Abstract：

Objective To investigate the appropriate setting up of normal reference ranges of lymphocyte subsets in some flow cytometry laboratories and to study the effects of different flow cytometers and various reagents by different manufacturers on the analysis of peripheral blood lymphocyte subsets. Methods Three FCM labs (named A, B and C) in Beijing region were selected representing 3 commonly used flow cytometers (Beckman Coulter Epics XL, Beckman Coulter Cytomics FC500, BD FACS Calibur). 50 samples from healthy donors were distributed to 3 labs and tested according to individual lab's standard operating procedure to verify whether the normal reference ranges of peripheral blood lymphocyte subsets established were appropriate. The application of internal quality control was also investigated. Commercial blood quality control reagents were given to the 3 FCM labs and tested within 20 working days paralleled with routine samples. In addition, 20 patients' samples were prepared using 4 different combinations of reagents ( a , b , c and d). The results from combination a, which used the Beckman Coulter reagents and instrument, were compared to the results from combination b, c and d, which used reagents from different manufacturers. Then the prepared samples were tested on Beckman Coulter Epics XL to evaluate the effects of different combinations of reagents on the results of peripheral blood lymphocyte subsets analyzed by the same instrument. Furthermore, 24 patients' samples prepared by same reagents from Beckman Coulter company were tested on both Beckman Coulter Epics XL and BD FACS Calibur respectively to assess the effects of different instruments on peripheral blood lymphocyte subsets. 20 patients' samples prepared by same reagents and instruments were analyzed by Beckman Coulter Epics XL analytic system and BD FACS Calibur analytic system respectively to assess the effects of the two analytic systems on the lymphocyte subsets. Results Over 10% of the results for NK and T4/T8 in lab A as well as T4 in labs B and C fell outside of their normal reference ranges. The probabilities exceeding corresponding normal reference ranges were 16% ( 9/50 ), 24% ( 12/50 ), 22% (11/50) and 12% ( 6/50 ), respectively. The results using internal blood quality control in 3 FCM labs within 20 working days were all within the reference ranges of the quality control provided by the kit. The biases from b and c reagent combinations were substantial compared with that of reagent a combination. Among the biases from b and c reagent combinations, the lowest probability of bias exceeding 10% was T8 of combination b, which had probability of 70% (14/20). The highest probabilities of hias exceeding 10% were T3 and T4 of b and c reagent combinations, which reached 100% (20/20) . Furthermore, the biases of T3, T8 and B of d reagent combination compared with that of reagent a combination were also substantial. The probabilities of bias exceeding 10% were 35% (7/20) ,85% (17/20) and 75% (15/20), respectively. Comparing the results of samples prepared and analyzed by reagents and instruments from different manufacturers to that of samples prepared and analyzed by the same company's reagents and instruments showed that there were great discrepancies in T3, T4 , T8 , B and NK. The probabilities of bias exceeding 10% were 71% ( 17/24), 80% (19/24) ,38% (9/24), 33% (8/24) and 92% (22/24), respectively. The biases of T8, NK and B were substantial when compared the results from Beckman Coulter Epics XL analytic systems and BD FACS Calibur analytic systems. The probabilities of bias exceeding 10% were 55% (11/20 ), 70% ( 14/20 ) and 55% (11/20), respectively. Conclusions FCM labs should set up their own normal reference range for peripheral blood lymphocyte subsets. The normal reference range should be verified periodically. It is important to apply internal blood quality control regularly and accumulate the quality control results. The reagents and instrument for preparing peripheral blood samples should be from the same manufacturers.