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Related Concept Videos

MicroRNAs01:22

MicroRNAs

MicroRNA (miRNA) are short, regulatory RNA transcribed from introns (non-coding regions of a gene) or intergenic regions (stretches of DNA present between genes). Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself, forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA...
MicroRNAs01:22

MicroRNAs

MicroRNA (miRNA) are short, regulatory RNA transcribed from introns—non-coding regions of a gene—or intergenic regions—stretches of DNA present between genes. Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA ends...
Myocarditis I: Introduction01:21

Myocarditis I: Introduction

Myocarditis is inflammation of the myocardium, which is the muscular layer of the heart.EtiologyMyocarditis has a diverse etiology, including a wide range of infectious and non-infectious causes:Infectious CausesViral: Common viruses include Coxsackie A and B, adenovirus, parvovirus B19, enteroviruses, and influenza A.Bacterial: Examples include infections caused by Streptococcus, Staphylococcus, and Mycoplasma species.Rickettsial: Infections like Rocky Mountain spotted fever can result in...

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Related Experiment Video

Updated: Jun 12, 2026

In Vivo Nanovector Delivery of a Heart-specific MicroRNA-sponge
09:53

In Vivo Nanovector Delivery of a Heart-specific MicroRNA-sponge

Published on: June 15, 2018

MicroRNA expression and function in cardiac ischemic injury.

Shiyong Yu1, Guohong Li

  • 1Department of Neurosurgery, LSU Health Science Center, Shreveport, LA 71130, USA.

Journal of Cardiovascular Translational Research
|June 11, 2010
PubMed
Summary

MicroRNAs (miRNAs) are key regulators of gene expression in ischemic heart disease (IHD). This review explores their role in cardiac injury and potential as diagnostic biomarkers and therapeutic targets for IHD.

Keywords:
Cardiac Ischemia/Reperfusion InjuryGene ExpressionMicroRNAsTarget Genes

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Last Updated: Jun 12, 2026

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Area of Science:

  • Biochemistry
  • Molecular Biology
  • Cardiology

Background:

  • Ischemic heart disease (IHD) is a major global cause of mortality.
  • Current therapies and diagnostics for IHD require improvement.
  • Gene expression alterations are central to IHD pathology.

Purpose of the Study:

  • To review advances in identifying myocardial ischemia-related microRNAs (miRNAs) and their target genes.
  • To discuss the role of specific miRNAs in regulating cardiac injury during ischemia.
  • To highlight the potential of miRNAs as diagnostic biomarkers and therapeutic targets for IHD.

Main Methods:

  • Literature review of recent studies on myocardial ischemia-related miRNAs.
  • Analysis of miRNA identification and validation methodologies.
  • Synthesis of current knowledge on miRNA functions in cardiac ischemia.

Main Results:

  • MicroRNAs (miRNAs) are crucial regulators of gene expression in the heart.
  • Specific miRNAs are implicated in key pathological processes of IHD, including apoptosis, fibrosis, arrhythmia, and angiogenesis.
  • Validated myocardial ischemia-related miRNAs and their targets have been identified.

Conclusions:

  • MicroRNAs represent promising diagnostic biomarkers for ischemic heart disease.
  • miRNAs offer innovative therapeutic targets for managing IHD and related cardiac injuries.
  • Further research into miRNA mechanisms can advance IHD treatment strategies.