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Circulating miRNAs Identified as Potential Biomarkers of Heart Disease in 2 Muscular Dystrophies

Promising new biomarkers to detect structural changes in the hearts of people with Duchenne and Becker muscular dystrophy have been identified, according to a study published in the Journal of Cardiovascular Magnetic Resonance. Biomarkers, like miRNAs, that circulate in the blood and are easily detectable can help diagnose and monitor chronic heart-muscle disease, or…

Defective RNA Processing Linked to Cardiac Problems Seen in Myotonic Dystrophy Patients

Researchers have discovered the molecular mechanisms responsible for the heart dysfunctions that mark myotonic dystrophy, and reported they appear to be linked to a defective processing of the cardiac sodium channel (SCN5A) RNA. Their study, published in Nature Communications, is titled “Splicing misregulation of SCN5A contributes to cardiac-conduction delay and…