Researchers discover that heart cells in developing zebrafish start beating suddenly and all at once Becoming a full-fledged organism out of a handful of cells, complete with functioning tissues and ...

A cross-department collaboration headed by researchers at Harvard Medical School and Harvard University has witnessed the moment at which cells in the zebrafish embryo heart start beating in unison ...

Heart damage occurs when substances or medical conditions harm heart tissue. Signs of heart damage from drugs may include chest pain, irregular heartbeat, and cough. Substances can affect the cells of ...