Related Experiment Video
Updated: Sep 11, 2025

Digital PCR for Quantifying Circulating MicroRNAs in Acute Myocardial Infarction and Cardiovascular Disease
Published on: July 3, 2018
Circulating-free DNA: A promising tool for early detection of myocardial infarction
Sajjad Rafiei1, Amir Modarresi Chahardehi2, Vuanghao Lim2
1Medical Toxicology and Drug Abuse Research Center (MTDRC), Birjand University of Medical Sciences, Birjand, Iran.
Abstract:
Myocardial infarction (MI) is a leading global cause of mortality, necessitating novel biomarkers for early diagnosis and prognosis. This review explores circulating cell-free DNA (cfDNA) as a minimally invasive tool for MI detection, focusing on its mechanistic role, diagnostic accuracy, and potential in personalized medicine. CfDNA levels rise rapidly post-ischemic event, correlating with myocardial damage and complementing troponins. Liquid biopsies using cfDNA enable dynamic monitoring of disease progression, but methodological variability and low concentrations limit its standalone use. Standardizing protocols and integrating cfDNA into multi-marker panels could enhance its clinical utility, positioning it as a transformative cardiovascular diagnostic tool.
Related Concept Videos
Blood Studies for Cardiovascular System I: Cardiac Biomarkers
The essential diagnostic tools for detecting myocardial necrosis and monitoring individuals suspected of having acute coronary syndrome (ACS) include:
Troponins
Troponins, particularly cardiac troponins I and T, are the most precise and sensitive markers of myocardial injury. They are detectable within 4-6 hours of myocardial injury and remain...
Blood Studies for Cardiovascular System II: CRP, Hcy, and Cardiac Natriuretic Peptide Markers
These markers indicate stress or strain on the heart muscle:
Natriuretic Peptides (BNP)
Cardiac myocytes produce these hormones in response to ventricular stretching...

