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Ensemble Approach Combining Deep Residual Networks and BiGRU with Attention Mechanism for Classification of heart Arrhythmias

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Computers, Materials & Continua 2024年第7期80卷 341-359页

作者： Batyrkhan Omarov Meirzhan Baikuvekov Daniyar Sultan Nurzhan Mukazhanov Madina Suleimenova Maigul Zhekambayeva Department of Information Systems Al-Farabi Kazakh National UniversityAlmaty050040Kazakhstan Department of Mathematical and Computer Modeling International Information Technology UniversityAlmaty050040Kazakhstan Department of Software Engineering Satbayev UniversityAlmaty050013Kazakhstan

This research introduces an innovative ensemble approach,combining Deep Residual Networks(ResNets)and Bidirectional Gated Recurrent Units(BiGRU),augmented with an Attention Mechanism,for the classification of heart *** escalating prevalence of cardiovascular diseases necessitates advanced diagnostic tools to enhance accuracy and *** model leverages the deep hierarchical feature extraction capabilities of ResNets,which are adept at identifying intricate patterns within electrocardiogram(ECG)data,while BiGRU layers capture the temporal dynamics essential for understanding the sequential nature of ECG *** integration of an Attention Mechanism refines the model’s focus on critical segments of ECG data,ensuring a nuanced analysis that highlights the most informative features for arrhythmia *** on a comprehensive dataset of 12-lead ECG recordings,our ensemble model demonstrates superior performance in distinguishing between various types of arrhythmias,with an accuracy of 98.4%,a precision of 98.1%,a recall of 98%,and an F-score of 98%.This novel combination of convolutional and recurrent neural networks,supplemented by attention-driven mechanisms,advances automated ECG analysis,contributing significantly to healthcare’s machine learning applications and presenting a step forward in developing non-invasive,efficient,and reliable tools for early diagnosis and management of heart diseases.

关键词： CNN BiGRU ensemble deep learning ECG arrhythmia heart disease

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Stem cell gene therapy:the risks of insertional mutagenesis and approaches to minimize genotoxicity

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Frontiers of Medicine 2011年第4期5卷 356-371页

作者： Chuanfeng Wu Cynthia E.Dunbar Hematology Branch National HeartLung and Blood InstituteNational Institutes of HealthBethesdaMD 20892USA

Virus-based vectors are widely used in hematopoietic stem cell(HSC)gene therapy,and have the ability to integrate permanently into genomic DNA,thus driving long-term expression of corrective genes in all hematopoietic *** date,HSC gene therapy has been successfully employed in the clinic for improving clinical outcomes in small numbers of patients with X-linked severe combined immunodeficiency(SCID-X1),adenosine deaminase deficiency(ADA-SCID),adrenoleukodystrophy(ALD),thalassemia,chronic granulomatous disease(CGD),and Wiskott-Aldrich syndrome(WAS).However,adverse events were observed during some of these HSC gene therapy clinical trials,linked to insertional activation of proto-oncogenes by integrated proviral vectors leading to clonal expansion and eventual development of *** studies have been performed to understand the molecular basis of vector-mediated genotoxicity,with the aim of developing safer vectors and lower-risk gene therapy *** review will summarize current information on the mechanisms of insertional mutagenesis in hematopoietic stem and progenitor cells due to integrating gene transfer vectors,discuss the available assays for predicting genotoxicity and mapping vector integration sites,and introduce newlydeveloped approaches for minimizing genotoxicity as a way to further move HSC gene therapy forward into broader clinical application.

关键词： gene therapy hematopoietic stem cells insertional mutagenesis genotoxicity induced pluripotent stem cell

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Epidemiological characteristics of centenarian deaths in China during 2013-2020:A trend and subnational analysis

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Chinese Medical Journal 2024年第13期137卷 1544-1552页

作者： Fan Mao Weiwei Zhang Peng Yin Lijun Wang Jinling You Jiangmei Liu Yunning Liu Maigeng Zhou national Center for Chronic and Non-Communicable Disease Control and Prevention Chinese Center for Disease Control and PreventionBeijing 100050China

Background:Studies that comprehensively address the characteristics of centenarian deaths are *** present study aimed to depict the characteristics of centenarian deaths in China and their changing ***:Data on centenarian deaths between 2013 and 2020 were obtained from the national mortality surveillance system of China,including date,place of death(PoD),and underlying cause of death(CoD).Descriptive analyses were performed to understand the epidemiological characteristics,and a joinpoint regression model was adopted to examine the changing trends in the proportions of different PoDs,CoDs among centenarians,and centenarian deaths accounting for all deaths and deaths among people aged 65 years and ***:There were 46,938 registered centenarian deaths between 2013 and 2020 that included 34,311 females(73.10%)and 12,627 males(26.90%).January(12.05%),February(9.99%),and December(9.74%)were the top three months with the highest number of *** proportions of deaths that occurred in homes,hospitals,and nursing homes were 81.71%,13.63%,and 2.68%,*** proportion of deaths in nursing homes increased by 9.60%(95%confidence intervals[CIs],6.4-12.9%)from 2014 to *** disease(35.72%)was the leading cause of death,followed by respiratory diseases(17.63%),cerebrovascular disease(15.60%),and old age(11.22%).The proportion of respiratory diseases decreased by 4.8%(95%CI,-8.8 to-0.7%),and the proportion of deaths from old age decreased by 2.3%(95%CI,-4.4 to-0.1%)per *** had the highest proportions of deaths in hospitals(39.38%)and nursing homes(14.68%).Sichuan had the highest proportion of deaths attributed to respiratory diseases(32.30%),while Jiangsu(26.58%)and Zhejiang(23.61%)had the highest proportions of deaths from old ***:Unlike other countries,centenarian deaths in China are characterized by a higher proportion of home and heart disease deaths,and this death pattern differs across provinces.

关键词： Centenarians Death Aging Cardiovascular diseases Respiratory tract diseases Place of death Cause of death

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ccdc141 is required for left-right axis development by regulating cilia formation in the Kupffer's vesicle of zebrafish

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Journal of Genetics and Genomics 2024年第9期51卷 934-946页

作者： Pengcheng Wang Wenxiang Shi Sijie Liu Yunjing Shi Xuechao Jiang Fen Li Sun Chen Kun Sun Rang Xu Department of Pediatric Cardiology Xinhua HospitalShanghai Jiao Tong University School of MedicineShanghai 200092China Department of Cardiovascular Medicine Heart Failure CenterRuijin HospitalRuijin Hospital Lu Wan BranchShanghai Jiao Tong University School of MedicineShanghai 200025China Scientific Research Center Xinhua HospitalShanghai Jiao Tong University School of MedicineShanghai 200092China Department of Pediatric Cardiology Shanghai Children's Medical CenterShanghai Jiao Tong University School of MedicineShanghai 200127China

Laterality is a crucial physiological process intricately linked to the cilium-centrosome complex during embryo *** in the process can result in severe organ ***-coil domain containing 141(CCDC141)has been previously known as a centrosome-related gene,but its role in left-right(LR)asymmetry has not been *** this study,we utilize the zebrafish model and human exome analysis to elucidate the function of ccdc141 in laterality *** knockdown of ccdc141 in zebrafish disrupts early LR signaling pathways,cilia function,and Kupffer's vesicle *** ccdc141-knockdown embryos exhibiting aberrant LR patterns,ccdc141-null mutants show no apparent abnormality,suggesting a genetic compensation response *** parallel,we observe a marked reduction inα-tubulin acetylation levels in the ccdc141 *** treatment with histone deacetylase(HDAC)inhibitors,particularly the HDAC6 inhibitor,rescues the ccdc141 crispant ***,exome analysis of 70 patients with laterality defects reveals an increased burden of CCDC141 mutations,with in-vivo studies verifying the pathogenicity of the patient mutation *** findings highlight the critical role of ccdc141 in ciliogenesis and demonstrate that CCDC141 mutations lead to abnormal LR patterns,identifying it as a candidate gene for laterality defects.

关键词： Left-right axis Cilia WES Laterality defects Zebrafish CCDC141

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Preoperative Feeding in Single Ventricle Neonates is Predictive of Shorter Time to Goal Feed

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Congenital heart Disease 2022年第5期17卷 505-518页

作者： Alyssia Venna Kathleen Reid Sarah Davis Jiaxiang Gai Yves d’Udekem Sarah Clauss Department of Cardiovascular Surgery Children’s National Heart InstituteThe George Washington University School of MedicineWashington DCUSA Department of Cardiology Children’s National Heart InstituteThe George Washington University School of MedicineWashington DCUSA Department of Biostatistics Children’s National Heart InstituteThe George Washington University School of MedicineWashington DCUSA

Background:Patients with single ventricle anatomy are at increased risk of growth failure and *** cardiac centers,there is little standardization of feeding practices in this complex *** hypothesized that initiation of our center’s preoperative feeding protocol would result in decreased gastrostomy tube(G-tube)use,decreased length of stay and would not result in increased Necrotizing Enterocolitis(NEC)***:A single institution review of 52 patients who had undergone stage I single ventricle palliative repair was *** diagnoses were hypoplastic left heart syndrome(39%),atrioventricular canal(15%),and other(46%).Postoperative parameters such as time to goal feed and need for gastrostomy tube(G-tube)were compared among preoperatively fed and non-preoperatively fed *** to goal feed was calculated as time from first postoperative enteral feed to goal volume of 100 mL/***:Of the 26 patients who met inclusion criteria for preoperative feeding,22 patients(85%)were fed prior to *** proportional hazard ratio revealed that age at surgery(p=0.047)and being preoperatively fed(p=0.001)were associated with reaching goal feed *** analysis revealed that being preoperatively fed made a patient twice as likely to reach goal feed sooner(p=0.047).Univariable logistic regression revealed that days on total parenteral nutrition(p=0.018),length of hospitalization(p=0.008),and time to 1st postoperative feed(p=0.020)were significantly associated with higher odds of needing a G-tube *** logistic regression did not show any predictors of postoperative G-tube ***,there was a trend towards lower G-tube usage in the preoperatively fed ***:Implementing a standardized preoperative feeding protocol in single ventricle neonates can result in significantly shorter time to goal feed in preoperatively fed *** is beneficial for institutions to begin implementi

关键词： Single ventricle feeding guidelines enteral nutrition hypoplastic left heart syndrome necrotizing enterocolitis preoperative

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Functional role of circRNA CHRC through miR-431-5p/KLF15 signaling axis in the progression of heart failure

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Journal of Genetics and Genomics 2024年第8期51卷 844-854页

作者： Yi Hu Huaming Cao Jie Sheng Yizhuo Sun Yuping Zhu Qin Lin Na Yi Siyu He Luying Peng Li Li State Key Laboratory of Cardiology and Medical Innovation Center Shanghai East HospitalTongji University School of MedicineShanghai 200120China Shanghai Arrhythmias Research Center Shanghai East HospitalTongji University School of MedicineShanghai 200120China Laboratory of Molecular Genetics and Stem Cell Differentiation Tongji University School of MedicineShanghai 200120China Department of Cardiology Shanghai Shibei HospitalShanghai 200435China Research Units of Origin and Regulation of heart Rhythm Chinese Academy of Medical SciencesShanghai 200120China

Pathological myocardial hypertrophy is a common early clinical manifestation of heart failure,with noncoding RNAs exerting regulatory ***,the molecular function of circular RNAs(circRNAs)in the progression from cardiac hypertrophy to heart failure remains *** uncover functional circRNAs and identify the core circRNA signaling pathway in heart failure,we construct a global triple network(microRNA,circRNA,and mRNA)based on the competitive endogenous RNA(ceRNA)*** observe that cardiac hypertrophy-related circRNA(circRNA CHRC),within the ceRNA network,is down-regulated in both transverse aortic constriction mice and Ang-II--treated primary mouse *** circRNA CHRC increases cross-sectional cell area,atrial natriuretic peptide,andβ-myosin heavy chain levels in primary mouse *** screening shows that circRNA CHRC targets the miR-431-5p/KLF15 axis implicated in heart failure progression in vivo and in *** with anti-Ago2-RNA confirms the interaction between circRNA CHRC and miR-431-5p,while miR-431-5p mimics reverse Klf15 activation caused by circRNA CHRC *** summary,circRNA CHRC attenuates cardiac hypertrophy via sponging miR-431-5p to maintain the normal level of Klf15 expression.

关键词： circRNA CHRC heart failure CeRNA miR-431-4p KIf15

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A Biobank for Long-term and Sustainable Research in the Field of Congenital heart Disease in Germany

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Genomics, Proteomics & Bioinformatics 2016年第4期14卷 181-190页

作者： Thomas Pickardt Eva Niggemeyer Ulrike M.M.Bauer Hashim Abdul-Khaliq Competence Network for Congenital heart Defects Investigators national Register for Congenital heart Defects 13353 BerlinGermany Saarland University Medical Center Department of Paediatrie Cardiology66421 HomburgGermany Competence Network for Congenital heart Defects 13353 BerlinGermany

Congenital heart disease （CHD） is the most fi＇equent birth defect （0.8% 1% of all live births）. Due to the advance in prenatal and postnatal early diagnosis and treatment, more than 90% of these patients survive into adulthood today. However, several mid- and long-term morbidi- ties are dominating the follow-up of these patients. Due to the rarity and heterogeneity of the phenotypes of CHD, multicenter registry-based studies are required. The CHD-Biobank was established in 2009 with the aim to collect DNA from patients and their parents （trios） or fi＇om affected families, as well as cardiovascular tissues from patients undergoing corrective heart surgery for cardiovascular malformations. Clinical/phenotype data are matched to the International Paediatric and Congenital Cardiac Code （IPCCC） and the International Statistical Classification of Diseases and Related Health Problems 10th Revision （ICD-10）. The DNA collection currently comprises samples from approximately 4200 participants with a wide range of CHD phenotypes. The collection covers about 430 trios and 120 families with more than one affected member. The cardiac tissue collection comprises 1143 tissue samples [Yore 556 patients alter open heart surgery. The CHD-Biobank provides a comprehensive basis for research in the field of CHD with high standards of data privacy, IT management, and sample logistics.

关键词： Congenital heart defects Multi-center research Biorepository Genetic research DNA

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Evolution of heart transplant donor characteristics in the 21st century: A United States single center’s experience

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World Journal of Transplantation 2024年第3期14卷 22-29页

作者： Alexander M Spring Christiana Gjelaj Shivank Madan Snehal R Patel Omar Saeed Sandhya Murthy Yogita Rochlani Daniel B Sims Sasha Vukelic Stephen J Forest Jamil F Borgi Daniel J Goldstein Ulrich P Jorde Montefiore-Einstein Center for heart and Vascular Care Montefiore Medical CenterAlbert Einstein College of MedicineBronxNY 10467United States Division of Cardiothoracic Surgery Tulane UniversityNew OrleansLA 70112United States

Despite a record setting number of heart transplants performed annually,the national donor shortage continues to plague transplant teams across the United *** we describe the barriers to adaptation of numerous“non-traditional”orthotopic heart transplant donor characteristics including donors with hepatitis C virus,those meeting criteria for donation after cardiac death,donors with coronavirus disease 19 infection,donors with the human immunodeficiency virus,and grafts with left ventricular systolic *** center’s objective was to increase our transplant volume by expanding our donor pool from“traditional”donors to these“non-traditional”*** detail how medical advances such as certain laboratory studies,pharmacologic interventions,and organ care systems have allowed our center to expand the donor pool thereby increasing transplantation volume without adverse effects on outcomes.

关键词： Orthotopic heart transplantation Hepatitis C virus COVID-19 Left ventricular systolic dysfunction Human immunodeficiency virus Donation after cardiac death

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Science Bulletin 2024年第7期69卷 850-852页

作者：周晓东 Gregory Y.H.Lip 郑明华 Department of Cardiovascular Medicine the Heart Centerthe First Affiliated Hospital of Wenzhou Medical UniversityWenzhou 325000China Liverpool Centre for Cardiovascular Science at University of Liverpool Liverpool John Moores University and Liverpool Heart&Chest HospitalLiverpool L693BXUK Department of Clinical Medicine Aalborg UniversityAalborg 9000Denmark MAFLD Research Center Department of Hepatologythe First Affiliated Hospital of Wenzhou Medical UniversityWenzhou 325000China Institute of Hepatology Wenzhou Medical UniversityWenzhou 325000China Key Laboratory of Diagnosis and Treatment for the Development of Chronic Liver Disease in Zhejiang Province Wenzhou 325000China

heart failure with preserved ejection fraction(HFpEF)has an estimated incidence rate of approximately 27 cases per 10,000 person-year[1].Furthermore,the prevalence of HFpEF is on the rise and is expected to exceed that of heart failure with reduced ejection fraction(HFr EF)[2].In the near future,HFpEF is expected to become the predominant subtype of heart failure[2].

关键词： predominant fraction 射血分数保留型

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Insights into treatment for hepatocellular carcinoma with tumor thrombus in the inferior vena cava or right atrium

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Hepatobiliary Surgery and Nutrition 2024年第1期13卷 168-171页

作者： Jia Yang Yongjie Shui Lihong Liu Genhua Yu Qichun Wei Department of Radiation Oncology The Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina The Key Laboratory of Cancer Prevention and Intervention China National Ministry of EducationZhejiang University School of MedicineHangzhouChina

Hepatocellular carcinoma(HCC),one of the most common liver cancers,often has a poor prognosis when it involves macrovascular *** emergencies including pulmonary embolism,heart failure,and even sudden death could happen when it develops a tumor thrombus(TT)in the inferior vena cava(IVC)or right atrium(RA),indicating an exceptionally grim prognosis(1).Although systemic therapy is the only standard treatment recommended by guidelines(2),other treatment modalities are explored including surgery,radiotherapy,*** some ***,as the only potential curative treatment,has been explored in several selected cases.A case of long-term survival of 15 years and cancer-free survival of 9 years was reported by surgical resection with a heart-first approach under cardiopulmonary bypass(CPB)(3),suggesting that aggressive surgery together with multidisciplinary treatments might achieve long ***,due to the aggressiveness and challenge of surgical resection-massive resection area,potential significant blood loss,and bypass needed,surgical resection is applied in very limited ***,safety,efficacy,and long-term survival benefits for these patients are poorly investigated.

关键词： Hepatocellular carcinoma(HCC) inferior vena cava(IVC) right atrium(RA) tumor thrombus(TT)

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