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arrhythmia&miRNA

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https://www.readbyqxmd.com/read/29901138/upregulation-of-mir%C3%A2-122-is-associated-with-cardiomyocyte-apoptosis-in-atrial-fibrillation
#1
Xiangqun Zhang, Wenli Jing
Atrial fibrillation (AF) is a common cardiac arrhythmia, which is associated with increased cardiovascular morbidity and mortality. microRNA (miRNA/miR)‑122 has been reported to be related with heart diseases, however, the functional role of miR‑122 in atrial fibrillation is unclear. Therefore, the aim of the present study was to investigate the roles of miR‑122 in atrial fibrillation. Male C57BL/6 mice were divided into the following three groups: Control, sham‑operation and AF. Mice in the AF group received transesophageal rapid atrial stimulation for the induction of AF...
June 4, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29877320/mirnas-in-cardiovascular-diseases-potential-biomarkers-therapeutic-targets-and-challenges
#2
REVIEW
Shan-Shan Zhou, Jing-Peng Jin, Ji-Qun Wang, Zhi-Guo Zhang, Jonathan H Freedman, Yang Zheng, Lu Cai
Cardiovascular diseases (CVD) are the leading cause of morbidity and mortality in the world. Although considerable progress has been made in the diagnosis, treatment and prognosis of CVD, there is still a critical need for novel diagnostic biomarkers and new therapeutic interventions to decrease the incidence of this disease. Recently, there is increasing evidence that circulating miRNAs (miRNAs), i.e. endogenous, stable, single-stranded, short, non-coding RNAs, can be used as diagnostic biomarkers for CVD...
June 7, 2018: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/29843720/soluble-epoxide-hydrolase-inhibitors-t-aucb-downregulated-mir-133-in-a-mouse-model-of-myocardial-infarction
#3
Yajun Gui, Da Li, Jingyuan Chen, Yating Wang, Jiahui Hu, Caixiu Liao, Limin Deng, Qunyan Xiang, Tao Yang, Xiao Du, Shilan Zhang, Danyan Xu
BACKGROUND: It has been demonstrated that soluble epoxide hydrolase inhibitors (sEHIs) are protective against ischemia-induced lethal arrhythmias, but the mechanisms involved are unknown. Previously, we showed that sEHIs might reduce the incidence of ischemic arrhythmias by suppressing microRNA-1 (miR-1) in the myocardium. As miR-1 and miR-133 have the same proarrhythmic effects in the heart, we assumed that the beneficial effects of sEHIs might also relate to the regulation of miR-133...
May 29, 2018: Lipids in Health and Disease
https://www.readbyqxmd.com/read/29746994/shenfu-formula-reduces-cardiomyocyte-apoptosis-in-heart-failure-rats-by-regulating-micrornas
#4
Xu Yan, Hongjin Wu, Jianxun Ren, Yuna Liu, Shengqi Wang, Jiyuan Yang, Shuyan Qin, Delin Wu
ETHNOPHARMACOLOGICAL RELEVANCE: Shenfu decoction consists of the water extract from the dried root or rootstalk of Panax ginseng C. A. Mey (Asian ginseng) and the lateral root of Aconitum carmichaeli Debx (Fuzi, Heishunpian in Chinese). Shenfu Formula has been used as a folk Chinese medicine for thousands of years. Recent studies have shown that Shenfu injection can enhance cardiac function and regulate arrhythmia. AIM OF THE STUDY: Shenfu Formula plays an important role in the treatment of heart failure...
May 7, 2018: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29720615/characterizing-the-role-of-atrial-natriuretic-peptide-signaling-in-the-development-of-embryonic-ventricular-conduction-system
#5
Arun Govindapillai, Adam Hotchkiss, Mark Baguma-Nibasheka, Robert A Rose, Lucile Miquerol, Oliver Smithies, Nobuyo Maeda, Kishore B S Pasumarthi
Patients born with congenital heart defects frequently encounter arrhythmias due to defects in the ventricular conduction system (VCS) development. Although recent studies identified transcriptional networks essential for the heart development, there is scant information on the mechanisms regulating VCS development. Based on the association of atrial natriuretic peptide (ANP) expression with VCS forming regions, it was reasoned that ANP could play a critical role in differentiation of cardiac progenitor cells (CPCs) and cardiomyocytes (CMs) toward a VCS cell lineage...
May 2, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29486470/abnormal-downregulation-of-caveolin-3-mediates-the-pro-fibrotic-action-of-microrna-22-in-a-model-of-myocardial-infarction
#6
Lu Zhang, Hongli Yin, Lei Jiao, Tianyi Liu, Yuqiu Gao, Yingchun Shao, Yuanyuan Zhang, Hongli Shan, Ying Zhang, Baofeng Yang
BACKGROUND/AIMS: Cardiac fibrosis is an important cardiac remodeling event that can ultimately lead to the development of severe arrhythmia and heart failure. MicroRNAs (miRNAs) are involved in the pathogenesis of many cardiovascular diseases. Here, we aimed to investigate the effects of caveolin-3 (Cav3) on the pathogenesis of cardiac fibrosis and the underlying molecular mechanisms. METHODS: Cav3 expression was decreased in cardiac fibrosis in vivo and in vitro model...
2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29324314/down-regulation-of-mir-133a-b-in-patients-with-myocardial-infarction-correlates-with-the-presence-of-ventricular-fibrillation
#7
Emanuela Boštjančič, Tanisa Brandner, Nina Zidar, Damjan Glavač, Dušan Štajer
MicroRNAs (miRNAs) are important regulators of physiologic and pathologic conditions of the heart. Animal models of heart diseases have shown that miRNAs may contribute to the development of arrhythmias. However, little is known about the expression of muscle- and cardiac-specific miRNAs in patients with myocardial infarction (MI) who have developed ventricular fibrillation (VF). Our study included 47 patients who had died from myocardial infarction (MI), 23 with clinically proven VF and 24 without VF. Autopsy samples of infarcted tissue and remote myocardium were available (n = 94)...
March 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29068585/microrna-in-cardiovascular-biology-and-disease
#8
REVIEW
Anna Wojciechowska, Agata Braniewska, Katarzyna Kozar-Kamińska
MicroRNAs (miRNAs) are members of a non-coding RNA family. They act as negative regulators of protein translation by affecting messenger RNA (mRNA) stability; they modulate numerous signaling pathways and cellular processes, and are involved in cell-to-cell communication. Thus, studies on miRNAs offer an opportunity to improve our understanding of complex biological mechanisms. In the cardiovascular system, miRNAs control functions of various cells, such as cardiomyocytes, endothelial cells, smooth muscle cells and fibroblasts...
August 2017: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/29036525/circulating-micrornas-in-arrhythmogenic-right-ventricular-cardiomyopathy-with-ventricular-arrhythmia
#9
Shinya Yamada, Ya-Wen Hsiao, Shih-Lin Chang, Yenn-Jiang Lin, Li-Wei Lo, Fa-Po Chung, Shuo-Ju Chiang, Yu-Feng Hu, Ta-Chuan Tuan, Tze-Fan Chao, Jo-Nan Liao, Chin-Yu Lin, Yao-Ting Chang, Abigail Louise D Te, Yung-Nan Tsai, Shih-Ann Chen
Aims: MicroRNAs (miRNAs) have been implicated in cardiac diseases. This study aimed to characterize the circulating miRNAs in patients with arrhythmogenic right ventricular cardiomyopathy (ARVC) and correlate the miRNAs with the clinical outcomes of ARVC. Methods and results: This study included 62 patients with ventricular arrhythmia (VA): 28 patients (45%) had definite ARVC, 11 (18%) had borderline or possible ARVC, and 23 (37%) had idiopathic ventricular tachycardia (VT)...
September 25, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29016775/emerging-molecular-therapies-targeting-myocardial-infarction-related-arrhythmias-the-role-of-mirnas-regulation
#10
Salvatore Patanè, Francesco Patanè
No abstract text is available yet for this article.
August 7, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28894747/mirna-expression-profile-and-effect-of-wenxin-granule-in-rats-with-ligation-induced-myocardial-infarction
#11
Aiming Wu, Lixia Lou, Jianying Zhai, Dongmei Zhang, Limin Chai, Bo Nie, Haiyan Zhu, Yonghong Gao, Hongcai Shang, Mingjing Zhao
Wenxin Granule (WXKL) is a traditional Chinese medicine used for treatment of myocardial infarction (MI) and arrhythmias. However, the genomic pathological mechanisms of MI and mechanisms of WXKL are largely unknown. This study aims to investigate a comprehensive miRNA expression profile, and the predicted correlation pathways to be targeted by differentially expressed miRNAs in MI, and mechanisms of WXKL from a gene level. MI rat model was established by a coronary artery ligation surgery. miRNA expression microarrays were performed and the data were deposited in Gene Expression Omnibus (GEO number GSE95855)...
2017: International Journal of Genomics
https://www.readbyqxmd.com/read/28796037/functional-prediction-of-mir-3144-5p-in-human-cardiac-myocytes-based-on-transcriptome-sequencing-and-bioinformatics
#12
Lei Ruan, Yi Yang, Yi Huang, Ling Ding, Cuntai Zhang, Xiaofen Wu
BACKGROUND: RAN guanine nucleotide release factor (RANGRF) encoding protein MOG1 plays an important role in cardiac arrhythmia, so we intended to investigate the regulatory miRNA of RANGRF and explore its potential regulatory mechanism in arrhythmogenesis. METHODS: Based on bioinformatic analysis, miR-3144-5p was predicted to be a regulatory miRNA of RANGRF, which were then validated through a dual-luciferase reporter plasmid assay. Subsequently, the expression level of miR-3144-5p in human cardiac myocytes (HCMs) was detected, followed by cell transfection with miR-3144-5p mimics...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28752208/micrornas-in-atrial-fibrillation-from-expression-signatures-to-functional-implications
#13
REVIEW
Nicoline W E van den Berg, Makiri Kawasaki, Wouter R Berger, Jolien Neefs, Eva Meulendijks, Anke J Tijsen, Joris R de Groot
Atrial fibrillation (AF) is the most common sustained arrhythmia and is associated with pronounced morbidity and mortality. Its prevalence, expected to further increase for the forthcoming years, and associated frequent hospitalizations turn AF into a major health problem. Structural and electrical atrial remodelling underlie the substrate for AF, but the exact mechanisms driving this remodelling remain incompletely understood. Recent studies have shown that microRNAs (miRNA), short non-coding RNAs that regulate gene expression, may be involved in the pathophysiology of AF...
June 2017: Cardiovascular Drugs and Therapy
https://www.readbyqxmd.com/read/28731126/mir%C3%A2-132-in-atrial-fibrillation-directly-targets-connective-tissue-growth-factor
#14
Gang Qiao, Dongsheng Xia, Zhaoyun Cheng, Guobao Zhang
Atrial fibrillation (AF) is the most frequently occurring, persistent cardiac arrhythmia, and the hallmark of AF‑dependent structural remodeling is atrial fibrosis. Connective tissue growth factor (CTGF) is important in the process of fibrosis. The association between miRNA and CTGF in AF‑dependent fibrosis remains to be elucidated. The present study aimed to determine if microRNA (miR)‑132 was able to regulate CTGF with an anti‑fibrotic effect in AF. A total of ten dogs or patients were assigned to control (n=4) and AF groups (n=6)...
October 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28601026/the-use-of-biologics-in-the-management-of-cardiovascular-diseases
#15
REVIEW
David A Taylor
The use of biologic agents including monoclonal antibodies, recombinant proteins, non-coding RNAs (miRNAs), gene therapy and, especially, stem cell therapy have revolutionized the treatment of a variety of diseases. Most notably, success in treating cancers have been achieved using hematopoietic stem cell therapy. Use of these agents in the treatment of cardiovascular disease is still in its infancy but recent advances have identified several new biologic agents. Current clinical trials are evaluating the success of stem cell therapy and fibroblast therapy as well as agents that either mimic or inhibit non-coding RNAs (miRNAs) as possible treatments for a several cardiac pathologies including heart failure, myocardial infarction, arrhythmias, coronary artery disease and ischemic heart disease...
April 2017: Current Opinion in Pharmacology
https://www.readbyqxmd.com/read/28469787/mir-1231-exacerbates-arrhythmia-by-targeting-calciumchannel-gene-cacna2d2-in-myocardial-infarction
#16
Jiefang Zhang, Lili Wu, Zhengwei Li, Guosheng Fu
MicroRNAs (miRNAs) are noncoding single-stranded RNAs of ~22 nucleotides suppressing a wide range of gene expression by direct degradation or translational inhibition of their target mRNAs. Acute myocardial infarction (AMI), a common cardiovascular disease mainly induced by coronary artery occlusion, can lead to the development of heart failure. Several recent findings have indicated that miRNAs might play vital roles in AMI, and some miRNAs have even been proposed as potential candidates for intervening AMI...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28465975/review-in-translational-cardiology-micrornas-and-myocardial-fibrosis-in-aortic-valve-stenosis-a-deep-insight-on-left-ventricular-remodeling
#17
REVIEW
Fabiani Iacopo, Conte Lorenzo, Enrico Calogero, Passiatore Matteo, Pugliese Nicola Riccardo, Santini Veronica, Barletta Valentina, Liga Riccardo, Scatena Cristian, Mazzanti Chiara Maria, Di Bello Vitantonio
MicroRNAs (miRNAs) are a huge class of noncoding RNAs that regulate protein-encoding genes (degradation/inhibition of translation). miRNAs are nowadays recognized as regulators of biological processes underneath cardiovascular disorders including hypertrophy, ischemia, arrhythmias, and valvular disease. In particular, circulating miRNAs are promising biomarkers of pathology. This review gives an overview of studies in aortic valve stenosis (AS), exclusively considering myocardial remodeling processes. We searched through literature (till September 2016), all studies and reviews involving miRNAs and AS (myocardial compartment)...
October 2016: Journal of Cardiovascular Echography
https://www.readbyqxmd.com/read/28422282/analysis-of-circulating-mir-1-mir-23a-and-mir-26a-in-atrial-fibrillation-patients-undergoing-coronary-bypass-artery-grafting-surgery
#18
Andre Feldman, Dalmo Antonio Ribeiro Moreira, Carlos Gun, Hui-Tzu Lin Wang, Mario Hiroyuki Hirata, Juliana de Freitas Germano, Gabriela Guimarães Sousa Leite, Pedro Farsky
Atrial fibrillation (AF) is the most common arrhythmia after cardiac surgery. From a pathophysiological point of view, a myriad of factors such as trauma, atrial dilation, ischemia, mechanical myopericarditis, autonomic imbalance, loss of connexins, AF nest remodeling, inflammation, sutures, and dysfunction caused by postextracorporeal circulation can contribute to postoperative atrial fibrillation (POAF) resulting in a longer hospital stay and consequently higher cost. Recent studies showed that short fragments of RNA, called microRNA (miRNA), can contribute to the development of several cardiovascular diseases, including AF...
May 2017: Annals of Human Genetics
https://www.readbyqxmd.com/read/28349066/circulating-micrornas-as-potential-biomarkers-of-atrial-fibrillation
#19
REVIEW
Ananília Medeiros Gomes da Silva, Jéssica Nayara Góes de Araújo, Renata Caroline Costa de Freitas, Vivian Nogueira Silbiger
Atrial fibrillation (AF) is the most common supraventricular arrhythmia in the population. MicroRNAs (small endogenous noncoding RNAs) are attractive candidates as biomarkers for AF, especially considering that miRNAs are stable and are detected within easily accessible biofluids such as blood. In this review, we selected twelve studies (2012 to 2016) that were classified according to the sample type. We aimed to provide an overview of the role of circulating miRNAs in AF and to discuss the variability of the results, seeking to improve the perspective of the use of miRNAs as potential noninvasive biomarkers for this heart disease...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28263709/kchip2-is-a-core-transcriptional-regulator-of-cardiac-excitability
#20
Drew M Nassal, Xiaoping Wan, Haiyan Liu, Danielle Maleski, Angelina Ramirez-Navarro, Christine S Moravec, Eckhard Ficker, Kenneth R Laurita, Isabelle Deschênes
Arrhythmogenesis from aberrant electrical remodeling is a primary cause of death among patients with heart disease. Amongst a multitude of remodeling events, reduced expression of the ion channel subunit KChIP2 is consistently observed in numerous cardiac pathologies. However, it remains unknown if KChIP2 loss is merely a symptom or involved in disease development. Using rat and human derived cardiomyocytes, we identify a previously unobserved transcriptional capacity for cardiac KChIP2 critical in maintaining electrical stability...
March 6, 2017: ELife
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