血管紧张素转换酶抑制剂对慢性心力衰竭患者认知功能障碍的改善作用

目的探讨血管紧张素转换酶抑制剂(ACEI)对慢性心力衰竭(CHF)伴认知功能障碍患者认知功能的改善作用。方法选取2017年9月年至2019年2月江苏省荣军医院住院治疗及无锡市山北街道合并认知功能障碍的CHF患者60例,采用随机数表法将患者分为治疗组和对照组,各30例。对照组患者的治疗包括病因治疗、去除诱因、改善心力衰竭等传统疗法,治疗组在对照组基础上给予ACEI治疗。分别采用蒙特利尔认知评估量表(MoCA)、汉密顿焦虑量表(HAMA)和汉密顿抑郁量表(HAMD)分别评估患者的认知功能、焦虑和抑郁状况。采用SPSS 21.0统计软件分析数据。结果干预前,2组患者MoCA各项评分及总分比较,差异均无统计学意义(P0.05)。干预后,与对照组相比,治疗组患者MoCA各项评分均有所增加,其中视空间及执行能力[(4.27±0.52)vs(2.70±0.54)分]和总分值[(24.70±1.09)vs(22.23±1.43)分]差异有统计学意义(P0.01)。与干预前比较,治疗组干预后各项MoCA评分均增加,其中总分[(24.70±1.09)vs(22.60±1.54)分]和视空间及执行能力[(4.27±0.52)vs(2.77±0.68)分]差异有统计学意义(P0.05)。干预前及干预后,2组患者间心功能、左室射血分数、焦虑、抑郁评分比较差异均无统计学意义(P0.05);各组干预前后上述指标比较差异亦无统计学意义(P0.05)。治疗期间2组患者心功能始终处于稳定状态,均未诱发急性心功能衰竭,药物治疗种类及方案也未调整。2组患者均未出现严重不良反应,亦未出现新的合并症。结论 ACEI类药物能够改善CHF患者的认知功能,提高患者的执行能力。     

IOLP方案治疗急性淋巴细胞白血病的疗效观察

目的探讨IOLP方案治疗急性淋巴细胞白血病的疗效及安全性。方法应用IOLP方案治疗13例初治急性淋巴细胞白血病（ALL）,观察其缓解率,白细胞及血小板恢复时间及非血液学毒性。结果 13例患者中2个疗程后均可评价结果 ,1个疗程后完全缓解（CR）10例（76.9%）,部分缓解（PR）2例（15.4%）,NR 1例（7.7%）;2个疗程后CR 12例（92.3%）,PR 1例（7.7%）,NR 1例（7.7%）。白细胞恢复至1.0×109/L的中位时间17d,血小板恢复至20×109/L中位时间20.5d。白细胞最低中位数0.35×109/L,血小板最低中位数15×109/L。感染发生率9/13（69.2%）。非血液学毒性主要包括轻度消化道反应,短暂的转氨酶升高,少数心功能异常、BUN升高。结论 IOLP方案具有对高危病例缓解率高、非血液学毒性低的特点,治疗急性淋巴细胞白血病有显著疗效。     

受体相关蛋白不同区段对Heymann肾炎大鼠足细胞瞬时受体电位阳离子通道蛋白6、synaptopodin及podocalyxin表达和分布的影响

目的 观察受体相关蛋白(RAP)不同区段对被动型Heymann肾炎(PHN)大鼠足细胞瞬时受体电位阳离子通道蛋白6(TRPC6)、synaptopodin、podocalyxin表达和分布的影响.方法 给雄性SD大鼠分别注射兔抗RAP全长(RAP-FL组)、氨基端(RAP-N组)和羧基端(RAP-C组)抗血清,建立相应...     

miR-203下调Bmi-1基因对肺腺癌细胞侵袭转移的影响

目的 探讨miR-203在肺腺癌中的表达,并分析其与肺腺癌细胞侵袭转移的关系及其分子机制。方法 实时定量PCR检测40例肺腺癌患者肿瘤组织中miR-203的相对表达水平及其与临床病理特征之间的关系;实时定量PCR检测H1650、A549、H1975、SPC-A-1肺腺癌细胞株中miR-203表达水平;生物信息学软件预测miR-203潜在的靶基因;脂质体2000介导miR-203模拟物、Bmi-1基因或Bmi-1 siRNA转染H1975细胞株;Western blotting检测Bmi-1蛋白水平;双荧光素酶报告基因验证miR-203是否作用于Bmi-1 mRNA的3’UTR 区预测靶位;Transwell小室侵袭实验检测H1975细胞株的侵袭转移能力。结果 40例肺腺癌组织中miR-203的相对表达量为0.065±0.013;肺腺癌miR-203表达与淋巴结转移有关,而与其他临床病理参数均无关;miR-203在肺腺癌细胞株H1650、A549、H1975、SPC-A-1中的相对表达量分别为0.280±0.102、0.308±0.168、0.167±0.073和0.287±0.096。生物信息学软件预测Bmi-1是miR-203的潜在靶基因;过表达miR-203可明显降低Bmi-1蛋白表达水平;双荧光素酶报告基因检测证明miR-203可作用于Bmi-1基因mRNA的 3’UTR区预测靶位。过表达miR-203+Bmi-1 siRNA可显著抑制肺腺癌细胞株H1975的侵袭迁移能力;在miR-203过表达的H1975细胞株中同时过表达Bmi-1可恢复其侵袭能力。结论 miR-203可通过下调Bmi-1基因表达抑制H1975肺腺癌细胞株的侵袭转移,是一种潜在抑制转移的miRNA分子。     

Cardiac differentiation and electrophysiology characteristics of bone marrow mesenchymal stem cells

Objective  To review the progress of cardiac differentiation and electrophysiological characteristics of bone marrow mesenchymal stem cells.

Data sources  The databases of PubMed, Springer Link, Science Direct and CNKI were retrieved for papers published from January 2000 to January 2012 with the key words of “bone marrow mesenchymal stem cells, cardiac or heart, electrophysiology or electrophysiological characteristics”.

Study selection  The articles concerned cardiac differentiation and electrophysiological characteristics of bone marrow mesenchymal stem cells were collected. After excluding papers that study purposes are not coincident with this review or contents duplicated, 56 papers were internalized at last.

Results  For the treatment of myocardial infarction and myocardiac disease, the therapeutic effects of transplantation of bone marrow mesenchymal stem cells which have the ability to develop into functional myocardial cells by lots of methods have been proved by many researches. But the arrhythmogenic effect on ventricles after transplantation of bone marrow mesenchymal stem cells derived myocardial cells is still controversial in animal models. Certainly, the low differentiation efficiency and heterogeneous development of electricial function could be the most important risk for proarrhythmia.

Conclusion  Many studies of cardiac differentiation of bone marrow mesenchymal stem cells have paid attention to improve the cardiac differentiation rate, and the electrophysiology characteristics of the differentiated cells should be concerned for the risk for proarrhythmia as well.

     

术前肌电图和脑干听觉诱发电位与面肌痉挛微血管减压术后迟发性面瘫发生的关系(英文)

Background Delayed facial palsy ( DFP) after microvascular decompression ( MVD) in patients with hemifacial spasm ( HFS) is not uncommon,but the cause remains unknown. Objectives To assess whether intraoperative electromyography ( EMG) and brainstem auditory evoked potential ( BAEP) can predict DFP after MVD. Methods Between September 2009 and February 2011 we examined 86 patients,9 of whom ( 10. 4% ) developed DFP after MVD on the same side. All patients underwent MVD and were followed - up for a median period of 13 months ( range 6-22) . We retrospectively examined intraoperative facial EMG and BAEP findings using our MVD patients’ registry. We excluded secondary HFS and immediate postoperative facial palsy after MVD in this study. We assessed the prevalence and clinical characteristics of DFP and compared EMG and BAEP findings between DFP and non-DFP groups. Results: All pa- tients recovered completely,with a mean time to recovery of 37. 8 days ( range 22-57) . There were no significant differences between DFP and non - DFP patients in terms of the amplitude and latency of intraoperative EMG and BAEP. Conclusion The usefulness of intraoperative facial EMG and BAEP is limited and cannot predict DFP after MVD for HFS. We speculate that DFP after MVD is not associated with permanent nerve damage according to the EMG findings.