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• W2073065225 endingPage "586" @default.
• W2073065225 startingPage "571" @default.
• W2073065225 abstract "Excitability is a fundamental characteristic of cardiac cells, which is delicately determined by ion channel activities modulated by many factors. MicroRNA (miRNA) expression is dynamically regulated and altered miRNA expression can render expression deregulation of ion channel genes leading to channelopathies-arrhythmogenesis. Indeed, evidence has emerged indicating the crucial role of miRNAs in controlling cardiac excitability by regulating expression of ion channel genes at the post-transcriptional level. However, the very limited experimental data in the literature hinder our understanding of the role of miRNAs and the often one-to-one interaction between miRNA and ion-channel gene in the published studies also casts a doubt about fullness of our view. Unfortunately, currently available techniques do not permit thorough characterization of miRNA targeting; computational prediction programs remain the only source for rapid identification of a putative miRNA target in silico. We conducted a rationally designed bioinformatics analysis in conjunction with experimental approaches to identify the miRNAs from the currently available miRNA databases which have the potential to regulate human cardiac ion channel genes and to validate the analysis with several pathological settings associated with the deregulated miRNAs and ion channel genes in the heart. We established a matrix of miRNAs that are expressed in cardiac cells and have the potential to regulate the genes encoding cardiac ion channels and transporters. We were able to explain a particular ionic remodeling process in hypertrophy/heart failure, myocardial ischemia, or atrial fibrillation with the corresponding deregulated miRNAs under that pathological condition; the changes of miRNAs appear to have anti-correlation with the changes of many of the genes encoding cardiac ion channels under these situations. These results indicate that multiple miRNAs might be critically involved in the electrical/ionic remodeling processes of cardiac diseases through altering their expression in cardiac cells, which has not been uncovered by previous experimental studies." @default.
• W2073065225 created "2016-06-24" @default.
• W2073065225 creator A5032073276 @default.
• W2073065225 creator A5059140154 @default.
• W2073065225 creator A5076918563 @default.
• W2073065225 creator A5088291390 @default.
• W2073065225 date "2010-01-01" @default.
• W2073065225 modified "2023-10-15" @default.
• W2073065225 title "Regulation of Human Cardiac Ion Channel Genes by MicroRNAs: Theoretical Perspective and Pathophysiological Implications" @default.
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• W2073065225 doi "https://doi.org/10.1159/000315076" @default.
• W2073065225 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/20511702" @default.
• W2073065225 hasPublicationYear "2010" @default.

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