Why can zebrafish heal heart damage, unlike other fish?

Why can zebrafish heal heart damage, unlike other fish?

Source: techexplorist

6/24/2024

Credit: Xantha Leatham

Some animals can heal their hearts after damage, unlike humans, who develop permanent scars from heart attacks. Scientists study this ability in creatures like fish and amphibians to improve treatments for human heart patients.

At the University of Utah, biologists led by Jamie Gagnon compared zebrafish, which regenerate heart tissue, with medaka, which does not. They found potential reasons for how zebrafish can repair their hearts, primarily related to the immune system. Postdoctoral researcher Clayton Carey, lead author of the study, highlighted the importance of comparing these fish to understand their differences in heart-healing abilities.

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