老年高血压患者动态脉压指数与冠状动脉狭窄程度的关系

目的探讨老年高血压(EH)患者动态脉压指数(PPI)与冠状动脉(冠脉)狭窄程度的关系。方法对拟诊为冠心病(CHD)的286例老年EH患者按冠脉造影的结果分为CHD组187例,非CHD组99例,以Leaman法进行冠脉狭窄程度评分;监测患者24 h动态血压,计算其动态PPI。结果随着动态PPI逐渐增大,冠脉狭窄程度评分明显增加(P<0.01);CHD组年龄、吸烟、高血压病程、降压达标、糖尿病、血脂异常、脉压(PP)及动态PPI明显高于非CHD组,(P<0.05);Logistic回归分析显示,EH患者CHD的发生与其动态PPI显著相关。动态PPI每增加0.10,CHD发生率增加38%,在对年龄和其他危险因素进行校正后,动态PPI每增加0.10,仍显示CHD发生率增加28%。CHD的发生同样与PP和收缩压(SBP)密切相关(P<0.01),而与舒张压和平均动脉压无相关。结论老年EH患者动态PPI、PP和SBP与冠脉狭窄严重程度呈正相关。     

激活Nrf2/ARE信号通路减轻肝损伤的中药研究进展＊

氧化应激与肝损伤的发生、发展息息相关，Nrf2/ARE是一条极为经典的与抗氧化应激相关的信号通路，不少学者聚焦于对该通路的研究。中药具有“多成分、多环节、多途径、多靶点”的特点，近年来在肝损伤的治疗中备受关注，运用现代化先进的手段和技术方法，研究及揭示中药治疗相关疾病激活的信号通路以及具体的作用靶点，阐述中药治病的作用机制和机理，已成为当今热点。本文概述了Nrf2/ARE信号通路的结构和功能，并总结近 5 年以来运用中药激活此信号通路修复肝损伤的作用方式及其可能的机制，为靶向治疗肝损伤的中医中药疗法的传承及创新开拓思路。     

Influence of Fuzheng Huayu Tablet (扶正化瘀片) on mental state and social function of patients with post-hepatitis B liver cirrhosis

Objective:To observe the influence of Fuzheng Huayu Tablet(扶正化瘀片,FZHYT)on mental state and social activity of patients with post-hepatitis B liver cirrhosis(LC-HB).Methods:Adopting grouped randomized double-blinded control method,180 LC-HB patients in 3 research centers were distributed to 2 groups,the treated group and the control group,90 in each group.Patients in the treated group were administered with FZHYT;while those in the control group treated with conventional therapy combined with placebo,the course for ail patients were 6 months.Their mental state and social activity were evaluated before treatment,after 3 months’ treatment and at terminal of the 6-month therapeutic course by estimating with Zung self-rating anxiety scale(SAS),self-rating depression scale(SDS)and social deficit screening scale(SDSS). Additionally,the basic demographic materials,liver function,cirrhosis index,hepatic and splenic images,blood coagulation function,etc.in the patients were tested and compared as well.Results:As compared with before treatment,the normal rate of SAS and SDS scores increased and the social deficit rate decreased in the treated group significantly after treatment,showing statistical significance(P<0.05 or P<0.01);while in the control group, change was only shown in the social deficit(P<0.01),inter-group comparisons after treatment showed significant differences in all the three indexes(P<0.05 or P<0.01).Additionally,after treatment,levels of liver function, cirrhosis,blood coagulation function and splenomegaly in the treated group were all improved significantly (P<0.05 or P<0.01),and the improvements were better than those in the control group(P<0.01)in levels of total bilirubin(TBIL),albumin(ALB),typeⅣcollagen(Ⅳ-C),prothrombin time(PT),prothrombin activity(PTA). Conclusion:Most patients of LC-HB have mental disturbance and social activity deficit,which could definitely be improved by intervention with Chinese FZHYT.     

线粒体自噬相关调控通路在慢性阻塞性肺疾病发病机制中的作用研究进展

线粒体自噬是一种选择性自噬，通过清除受损线粒体来维持细胞及代谢的稳态。慢性阻塞性肺疾病（COPD）是一种以持续存在的呼吸系统症状和气流受限为特征的常见慢性疾病，其发病机制复杂，至今仍未完全明确。许多研究表明调控线粒体自噬的多条信号通路在COPD进展中发挥重要作用。本文阐述了PINK1/Parkin、FUNDC1和Nix等相关通路通过调控线粒体自噬在COPD中作用的研究现状，并总结了近几年取得的重要研究进展，为进一步研究线粒体自噬在COPD相关通路中的调控作用提供合理的理论基础。