检索结果-南通市图书馆

The Novel Long QT Syndrome Type 2-associated F129I Mutation in the KCNH2 Gene Significantly Affects IKr Through the hERG1 Homomeric and Heteromeric Potassium Channels

引用

Cardiology Discovery 2024年第2期4卷 174-182页

作者： Li Feng Kejuan ma Xin Li Nian Liu Deyong Long changsheng ma Department of Cardiology Beijing Anzhen HospitalCapital Medical UniversityNational Clinical Research Center for Cardiovascular DiseasesBeijing 100029China Community Health Service Center of Beijing Nomal University Beijing 100875China.

Objective:The long QT syndrome type 2 is caused by the loss-of-function mutations in the KCNH2 gene,which encodes hERG1,the voltage-gated potassium channel.The hERG1 channels conduct rapid delayed rectifier K+currents(k)in the human cardiac tissue.KCNH2 encodes 2 main isoforms-hERG1a and hERG1b,which assemble to form the homomeric or heteromeric hERG1 channels.However,the functional characteristics of the heteromeric hERG1 channels in long QT syndrome type 2 are not clear.In this study,a novel mutation in the N-terminus of hERG1a(F129l)was identified in a proband of long QT syndrome type 2.The purpose of this study was to identify the electrophysiological change of homomeric and heteromeric hERG1 channels with theF129l-hERG1a.Methods:Candidate genes were screened by direct sequencing.F129l-hERG1a was cloned in the pcDNA3.1 vector by site-directed mutagenesis.Then,the wild-type(WT)hERG1a and/or F129l-hERG1a were transiently expressed in the HEK293 cells with or without hERG1b co-expression.The expression levels of the transgenes,cellular distribution of hERG1a and hERG1b,and the electrophysiological features of the homomeric and the heteromeric hERG1 channels with the WT-hERG1a or F129l-hERG1a were analyzed using whole-cell patch-clamp electrophysiology,western blotting,and immunofluorescence techniques.Results:The proband was clinically diagnosed with long QT syndrome type 2 and carried a heterozygous mutation c.385T>A(F1291)in the KCNH2 gene.Electrophysiology study proved that the F129l substitution in hERG1a significantly decreased/kr in both the homomeric and heteromeric hERG1channels by 86%and 70%,respectively(WT-hERG1a(54.88±18.74)pA/pF vs.F129l-hERG1a(7.34±1.90)pA/pF,P<0.001;WT-hERG1a/hERG1b(89.92±24.51)pA/pF vs.F129l-hERG1a/hERG1b(26.54±9.83)pA/pF,P<0.001).The voltage dependence of Ik,activation(Vy and k)was not affected by the mutation in both the homomeric and heteromeric hERG1 channels.The peak current densities and the kinetic characteristics of Ik,were comparable for both WT/F129l-hERG1a and WT-hERG1a

关键词： Long QT syndrome Arrhythmia lon channels hERG

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Guidelines for the Diagnosis and management of Atrial Fibrillation

引用

Cardiology Discovery 2024年第2期4卷 89-133页

作者：无 changsheng ma Shulin Wu Shaowen Liu Yaling Han Chinese Society of Cardiology Chinese Medical Association Heart Rhythm Committee of Chinese Society of Biomedical Engineering 不详

Atrial fibrillation(AF)is the most common sustained cardiac arrhythmia,significantly impacting patients'quality of life and increasing the risk of death,stroke,heart failure,and dementia.Over the past 2 decades,there have been significant breakthroughs in AF risk prediction and screening,stroke prevention,rhythm control,catheter ablation,and integrated management.During this period,the scale,quality,and experience of AF management in China have greatly improved,providing a solid foundation for the development of guidelines for the diagnosis and management of AF.To further promote standardized AF management,and apply new technologies and concepts to clinical practice in a timely and comprehensive manner,the Chinese Society of Cardiology of the Chinese Medical Association and the Heart Rhythm Committee of the Chinese Society of Biomedical Engineering have jointly developed the Chinese Guidelines for the Diagnosis and management of Atrial Fibrillation.The guidelines have comprehensively elaborated on various aspects of AF management and proposed the CHA,DS,-VASc-60 stroke risk score based on the characteristics of AF in the Asian population.The guidelines have also reevaluated the clinical application of AF screening,emphasized the significance of early rhythm control,and highlighted the central role of catheter ablation in rhythm control.

关键词： Atrial fibrillation Anticoagulation Rhythm control Catheter ablation Integrated management Guideline

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Oral anti-coagulants use in Chinese hospitalized patients with atrial fibrillation

引用

Chinese Medical Journal 2024年第2期137卷 172-180页

作者： Jing Lin Deyong Long Chenxi Jiang Caihua Sang Ribo Tang Songnan Li Wei Wang Xueyuan Guo man Ning Zhaoqing Sun Na Yang Yongchen Hao Jun Liu Jing Liu Xin Du Louise Morgan Gregg C.Fonarow Sidney C.Smith Jr Gregory Y.H.Lip Dong Zhao Jianzeng Dong changsheng ma On behalf of CCC-AF investigators Department of Cardiology Beijing Anzhen HospitalCapital Medical UniversityBeijing 100029China National Clinical Research Center for Cardiovascular Diseases Beijing 100029 China Department of Epidemiology Beijing Anzhen HospitalCapital Medical UniversityBeijing Institute of HeartLung and Blood Vessel DiseasesBeijing 100029China International Quality Improvement Department American Heart AssociationDallasTX 07076USA Division of Cardiology Geffen School of Medicine at University of CaliforniaLos Angeles CA 90024USA Division of Cardiology University of North CarolinaChapel HillNC 27599USA Department of Cardiology Liverpool Centre for Cardiovascular ScienceUniversity of Liverpool and Liverpool Heart&Chest HospitalLiverpool L143PEUK Department of Clinical Medicine Aalborg UniversityAalborg 9000Denmark 不详

Background:Oral anti-coagulants(OAC)are the intervention for the prevention of stroke,which consistently improve clinical outcomes and survival among patients with atrial fibrillation(AF).The main purpose of this study is to identify problems in OAC utilization among hospitalized patients with AF in China.Methods:Using data from the Improving Care for Cardiovascular Disease in China-Atrial Fibrillation(CCC-AF)registry,guideline-recommended OAC use in eligible patients was assessed.Results:A total of 52,530 patients with non-valvular AF were enrolled from February 2015 to December 2019,of whom 38,203 were at a high risk of stroke,9717 were at a moderate risk,and 4610 were at a low risk.On admission,only 20.0%(6075/30,420)of patients with a diagnosed AF and a high risk of stroke were taking OAC.The use of pre-hospital OAC on admission was associated with a lower risk of new-onset ischemic stroke/transient ischemic attack among the diagnosed AF population(adjusted odds ratio:0.54,95%confidence interval:0.43-0.68;P70%of AF patients were at a high risk of stroke.Although poor performance on guideline-recommended OAC use was found in this study,over time the CCC-AF project has made progress in stroke prevention in the Chinese AF population.Registration:ClinicalTrials.gov,NCT02309398.

关键词： Atrial fibrillation Oral anti-coagulants OAC Stroke prevention Contraindication

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

迎接AI医生时代

引用

中华心血管病杂志 2024年第5期52卷 453-454页

作者：马长生首都医科大学附属北京安贞医院心脏内科中心、国家心血管疾病临床医学研究中心北京100029

过去一年,我们团队调研基层心血管病防治,走访了河南、云南、新疆8个县的县医院、4个乡镇卫生院和4个村医工作室,其中一半的县是过去的国家级贫困县。我们看到了国家在人民健康保障上的巨大投入和惊人成就,所有医生护士均有较好的收入... 详细信息

过去一年,我们团队调研基层心血管病防治,走访了河南、云南、新疆8个县的县医院、4个乡镇卫生院和4个村医工作室,其中一半的县是过去的国家级贫困县。我们看到了国家在人民健康保障上的巨大投入和惊人成就,所有医生护士均有较好的收入和乐观向上的精神面貌,每一个县医院均修建得宽敞明亮、设备齐全,村医工作室都有标准配置的诊室、输液室和整齐摆放着各种和三甲医院一样药品的药房,还可以通过互联网与上级医院联系。我们到了地处大山深处鸡鸣三省(云南、贵州、四川三省交界)的云南威信县,有些村医按规定定期骑摩托车到山上给住在那里的高血压村民测血压、指导用药,需要驱车10 km之远。目前我国乡村医生多数尚未像城市社区医生一样经过正规医学院教育培训,独立按照指南规范诊疗常见病的能力明显不足。而在三甲医院每天一位医生100个门诊患者也难以保证高质量的服务。基层医疗机构和三甲医院均迫切需要高质量、智能化的诊疗辅助工具,充分利用现有人员,以提高效率、提升质量并减轻繁重的工作负担。

关键词：心血管病防治三甲医院基层医疗机构乡村医生设备齐全辅助工具提升质量乐观向上

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

ABC-AF-Stroke score predicts thromboembolism in nonanticoagulated patients following successful atrial fibrillation ablation: a report from the Chinese Atrial Fibrillation Registry

引用

Chinese Medical Journal 2023年第20期136卷 2451-2458页

作者： Yufeng Wang Chao Jiang Liu He Xin Du Xueyuan Guo Ribo Tang Caihua Sang Deyong Long Jianzeng Dong Ziad Hijazi Gregory YHLip changsheng ma Department of Cardiology Beijing Anzhen HospitalCapital Medical UniversityNational Clinical Research Centre for Cardiovascular DiseasesBeijing 100029China Heart Health Research Center Beijing 100029China The George Institute for Global Health Faculty of MedicineUniversity of New South WalesSydneyNSWAustralia Department of Cardiology The First Affiliated Hospital of Zhengzhou UniversityZhengzhou UniversityZhengzhouHenan 450052China Department of Medical Sciences CardiologyUppsala UniversityUppsalaSweden Uppsala Clinical Research Center Uppsala UniversityUppsalaSweden Liverpool Centre for Cardiovascular Science Liverpool Heart and Chest HospitalUniversity of LiverpoolLiverpoolUK

Background:The age,biomarkers,and clinical history(ABC)-atrial fibrillation(AF)-Stroke score have been proposed to refine stroke risk stratification,beyond what clinical risk scores such as the CHA2DS2-VASc score can offer.This study aimed to identify risk factors associated with thromboembolism and evaluate the performance of the ABC-AF-Stroke score in predicting thromboembolism in non-anticoagulated AF patients following successful ablations.Methods:A total of 2692 patients who underwent successful ablations with discontinued anticoagulation after a 3-month blanking period in the Chinese Atrial Fibrillation Registry(CAFR)between 2013 and 2019 were included.Cox regression analysis was conducted to present the association of risk factors with thromboembolism risk.The ABC-AF-Stroke score was evaluated in terms of discrimination,including concordance index(C-index),net reclassification improvement(NRI)and integrated discrimination improvement(IDI),clinical utilization by decision curve analysis(DCA),and calibration by comparing the predicted risk with the observed annualized event rate.Results:After a median follow-up of 3.5 years,64 patients experienced thromboembolism events.Age,prior history of stroke/transient ischemic attack(TIA),high-sensitivity cardiac troponin T(cTnT-hs),and N-terminal pro-B-type natriuretic peptide(NT-proBNP)were independently associated with thromboembolism risk.The ABC-AF-Stroke score performed statistically significantly better than the CHA2DS2-VASc score in terms of C-index(0.67,95%confidence interval[CI]:0.59-0.74 vs.0.60,95%CI:0.52-0.67,P=0.030)and reclassification capacity.The DCA implied that the ABC-AF-Stroke score could identify more thromboembolism events without increasing the false positive rate compared to the CHA2DS2-VASc score.The calibration curve showed that the ABC-AF-Stroke score was well calibrated in this population.Conclusions:In this real-world study enrolling non-anticoagulated AF patients following successful ablations,age,prior history of stroke/TIA,level of NT-p

关键词： Atrial fibrillation ABC-AF-Stroke score CHAS2DS2-VASc Thromboembolism Catheter ablation

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A Multicentre Prospective Evaluation of the Impact of Renal Insufficiency on In-hospital and Long-term Mortality of Patients with Acute ST-elevation Myocardial Infarction

引用

Chinese Medical Journal 2015年第1期128卷 1-6页

作者： Chao Li Dayi Hu Xubo Shi Li Li Jingang Yang Li Song changsheng ma Department of Cardiology Beijing Anzhen Hospital Capital Medical University and Beijing Institute of Heart Lung and Blood Vessel Diseases Beijing 100029 China Cardiovascular Center Beijing Tongren Hospital Capital Medical University Beijing 100730 China Heart Center The People's Hospital of Peking University Beijing 100044 China Cardiovascular Center Beijing United Family Hospital Beijing 100016 China Department of Cardiology Cardiovascular Institute and Fuwai Hospital Chinese Academy of Medical Sciences and Peking Union Medical College Beijing 100037 China

Background：Numerous previous studies have shown that renal insufficiency （RI） in patients with acute coronary syndrome is associated with poor cardiovascular outcomes.These studies do not well address the impact of RI on the long-term outcome of patients with acute ST-elevation myocardial infarction （STEMI） in China.The aim of this study was to investigate the association of admission RI and inhospital and long-term mortality of patients with acute STEMI.Methods：This was a multicenter,observational,prospective-cohort study.718 consecutive patients were admitted to 19 hospitals in Beijing within 24 hours of onset of STEMI,between January 1,2006 and December 31,2006.Estimation of glomerular filtration rate （eGFR） was calculated using the modified abbreviated modification of diet in renal disease equation-based on the Chinese chronic kidney disease patients.The patients were categorized according to eGFR,as normal renal dysfunction （eGFR ≥ 90 ml·min^-1·1.73 m^-2）,mild RI （60 ml·min^-1· 1.73 m^-2 〈 eGFR 〈 90 ml·min^-1· 1.73 m^2） and moderate or severe RI （eGFR 〈 60 ml·min^-1· 1.73 m^2）.The association between RI and inhospital and 6-year mortality of was evaluated.Results：Seven hundred and eighteen patients with STEMI were evaluated.There were 551 men and 167 women with a mean age of 61.0 ＆#177; 13.0 years.Two hundred and eighty patients （39.0%） had RI,in which 61 patients （8.5%） reached the level of moderate or severe RI.Patients with RI were more often female,elderly,hypertensive,and more patients had heart failure and stroke with higher killip class.Patients with RI were less likely to present with chest pain.The inhospital mortality （1.4% vs.5.9% vs.22.9%,P 〈 0.001）,6-year all-cause mortality （9.5% vs.19.8 vs.45.2%,P 〈 0.001） and 6-year cardiac mortality （2.9% vs.12.2% vs.23.8%,P 〈 0.001） were markedly increased in patients with RI.After adjusting for other confounding factors,classification of admission renal function was an independent predictor of inhospital mortality （Odd ratio,1.966; 95% confidence inter

关键词： In-hospital Mortality Long-term Mortality Myocardial Infarction Renal Insufficiency

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

中国心房颤动流行病学20年

引用

中华心血管病杂志 2024年第2期52卷 220-226页

作者：高明阳何柳杜昕桑才华马长生首都医科大学附属北京安贞医院心内科、国家心血管疾病临床医学研究中心北京100029

心房颤动(房颤)是临床上最常见的持续性心律失常,也是缺血性卒中的重要病因。过去20年,随着人口结构老龄化进程加速以及危险因素的累积,我国房颤相关疾病负担呈上升趋势,但知晓率和综合管理率还处于较低水平。随着房颤检测设备的进步与... 详细信息

心房颤动(房颤)是临床上最常见的持续性心律失常,也是缺血性卒中的重要病因。过去20年,随着人口结构老龄化进程加速以及危险因素的累积,我国房颤相关疾病负担呈上升趋势,但知晓率和综合管理率还处于较低水平。随着房颤检测设备的进步与普及、筛查策略的优化,房颤检出率将进一步提高,有利于诊断治疗关口前移,改善房颤患者生活质量和预后。面对有限的医疗资源和庞大的患者数量,借助移动互联网、人工智能技术实现高质量、高效率的远程管理将发挥巨大价值,是解决这一矛盾的重要途径。

关键词：心房颤动疾病负担患者管理

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

多参数MRI预测直肠癌淋巴结转移的研究进展

引用

中华肿瘤防治杂志 2024年第4期31卷 241-246页

作者：邹静敏王华东马长升王世江马燕山东第一医科大学(山东省医学科学院)研究生部山东济南250117 山东省肿瘤防治研究院(山东省肿瘤医院)消化内科二病区山东第一医科大学(山东省医学科学院)山东济南250117

目的探讨多参数MRI(mpMRI)预测直肠癌淋巴结转移的研究进展、局限性以及未来发展趋势。方法应用中国知网和PubMed数据库,以“磁共振、多参数成像、直肠癌、淋巴结转移”为中文关键词,“MRI、multiparametric imaging、rectal cancer、ly... 详细信息

目的探讨多参数MRI(mpMRI)预测直肠癌淋巴结转移的研究进展、局限性以及未来发展趋势。方法应用中国知网和PubMed数据库,以“磁共振、多参数成像、直肠癌、淋巴结转移”为中文关键词,“MRI、multiparametric imaging、rectal cancer、lymph node metastasis”为英文关键词,系统检索2017-01-01-2023-06-07相关文献。纳入标准:(1)直肠癌淋巴结转移的相关研究;(2)mpMRI对淋巴结转移诊断的相关研究。排除标准:(1)会议性、评论类等文献;(2)内容相似或重复的文献。最终纳入61篇文献进行分析。结果与传统的计算机辅助诊断相比,mpMRI(对比增强MRI、弥散加权成像/表观扩散系数、T_(2)加权图像等)能为医生提供更多的视角观察病变;与单一的CT图像相比,基于mpMRI的影像组学特征模型结合临床危险因素对直肠癌淋巴结转移具有更好的预测性能。结论mpMRI在预测直肠癌淋巴结转移方面具有较大的潜能,结合基于mpMRI的影像组学特征和深度学习的预测模型是其未来研究发展的方向之一。此外,有待开发更多的mpMRI以提高直肠癌患者术前淋巴结状态的预测,辅助医师做出最佳诊断,使患者的个体化治疗成为可能。

关键词：磁共振多参数成像直肠癌淋巴结转移综述文献

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

复合营养维生素对3~6岁儿童营养状况和发育状况的影响

引用

中国药业 2024年第S1期33卷 46-48页

作者：马长生甘肃省天水市张家川县疾病预防控制中心甘肃天水741500

目的探讨复合营养维生素对3~6岁儿童的营养状况和发育状况的影响。方法选取张家川县疾病预防控制中心2022年1月至12月接待的3~6岁体检儿童65例,按随机数字表法分为观察组(33例)和对照组(32例)。两组儿童均予维生素A干预,观察组儿童加用... 详细信息

目的探讨复合营养维生素对3~6岁儿童的营养状况和发育状况的影响。方法选取张家川县疾病预防控制中心2022年1月至12月接待的3~6岁体检儿童65例,按随机数字表法分为观察组(33例)和对照组(32例)。两组儿童均予维生素A干预,观察组儿童加用复合营养维生素干预,比较两组患儿干预前后的营养不良发生情况、生长状况(身高、体质量、维生素A)和营养状况(锌、铁、钙)。结果观察组儿童干预后的消瘦、贫血、生长迟缓等不良反应发生率显著低于对照组(P<0.05);观察组儿童干预后的身高、体质量和维生素A水平显著高于对照组,锌、铁、钙水平显著高于对照组(P<0.05)。结论复合营养维生素可有效改善3~6岁儿童的营养状况和发育状况。

关键词：复合营养维生素儿童营养状况发育状况

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Pseudoaneurysm with Median Nerve Injury Caused by Right Radial Artery Puncture:A Case Report

引用

Cardiovascular Innovations and Applications 2021年第1期5卷 219-224页

作者： Yachao Li Zengming Xue He ma Wei Zhang Shaoping Nie changsheng ma Department of Cardiology People’s Hospital of Langfang CityLangfang065000 HebeiPeople’s Republic of China Department of Ultrasound People’s Hospital of Langfang CityLangfang065000 HebeiPeople’s Republic of China Department of Orthopedics People’s Hospital of Langfang CityLangfang065000 HebeiPeople’s Republic of China Emergency Department Beijing Anzhen HospitalCapital Medical University100029 BeijingPeople’s Republic of China Department of Cardiology Beijing Anzhen HospitalCapital Medical University100029 BeijingPeople’s Republic of China

Background:Pseudoaneurysm with median nerve injury is a serious complication of radial artery puncture.It is very important to summarize the prevention and treatment experience of this complication through case discussion.Case report:A 66-year-old woman was admitted to the hospital because of‘‘paroxysmal chest tightness and suffocation for 5 days.”Coronary angiography was performed.During insertion of the arterial sheath,the patient experienced severe pain in the right forearm,which radiated to the palm.The puncture sheath did not return blood after the sheath core was withdrawn.The sheath was removed and local compression was used to stop bleeding.There was no obvious bleeding at the puncture point,and the compression was removed 6 hours after the procedure.Local swelling and increased tension were seen in the right forearm.At the 1-week follow-up she exhibited swelling,high local tension,small blisters,and bluish-purple skin of the right forearm,with an acceptable right radial artery pulsation.She had severe pain in the affected limb,which radiated to the thumb,index fi nger,and middle fi nger.Case discussion:We discuss the causes of and treatment measures for pseudoaneurysm with median nerve injury caused by radial artery puncture.

关键词： Puncture radial artery median nerve complications

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：