UC Berkeley and Caltech researchers identified a gene circuit in zebrafish that allows heart regeneration after injury. Using ...

The team then compared the activity of the Hmga1 gene in zebrafish, mice, and humans. In human hearts, as in adult mice, the Hmga1 protein is not produced after a heart attack.

A heart attack will leave a permanent scar on a human heart, yet other animals, including zebrafish, can clear cardiac scar tissue and regrow damaged muscle as adults. Biologists sheds new light ...

An MDC research team led by Jan Philipp Junker and Daniela Panáková has found that zebrafish can regenerate heart tissue after injury. Connective tissue cells play an important role in the ...

The zebrafish heart comprises four chambers, like humans (though the chambers are very different). Neurons in the IcNS are concentrated near the valves between these chambers, particularly in an ...

Scarring, or fibrosis, is typically an obstacle when it comes to regenerating a damaged human heart. However, the active fibroblasts in a damaged zebrafish heart could be key to repairing it. To prove ...

The heart’s “mini-brain” is independent and highly localized, according to researchers at the Karolinska Institutet in Stockholm, Sweden. The findings could lead to new research into ...

An adult zebrafish heart is about 1 millimeter across, or roughly 13 times larger than the width of a human hair. But at the larval stage shown in this video, the heart is only about 250 micrometers ...

Unlike humans, zebrafish grow new heart muscle cells: they have a regenerative capacity. When a zebrafish's heart is damaged, it can fully restore its function within 60 days.

When a zebrafish heart is damaged, it can fully restore its function within 60 days. “We don’t understand why some species can regenerate their hearts after injury while others cannot”, ...