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Oxytocin has been found to stimulate heart stem cells — regenerating heart tissue after injury.

Oxytocin, popularly known as the “love hormone,” may soon play a vital role in heart repair, according to a new study by researchers at Michigan State University.

In experiments with zebrafish and human cell cultures, oxytocin was shown to activate heart stem cells known as Epicardium-derived Progenitor Cells (EpiPCs). T

hese cells can transform into cardiomyocytes—the muscle cells responsible for heartbeats—and help regenerate heart tissue following injury. This finding could pave the way for groundbreaking treatments to regenerate damaged human hearts after heart attacks.

The study revealed that zebrafish dramatically increase oxytocin production after heart injury, which stimulates EpiPCs to rebuild lost heart tissue. Remarkably, oxytocin had a similar effect on human heart cells in laboratory conditions, performing better than other tested molecules. Since oxytocin is already widely used for medical purposes, researchers are hopeful about its potential to be repurposed for cardiac therapy. The next steps involve testing oxytocin’s effects in humans post-heart injury and possibly developing longer-lasting versions of the hormone for clinical use.

📘 30 LONGEST WORDS IN ENGLISH

1. Pneumonoultramicroscopicsilicovolcanoconiosis | A lung disease caused by inhaling very fine silicate or quartz dust. (Longest word in a major dictionary)

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Structure of a nerve cell