Thursday, November 20, 2025

Tiny microneedle patch dramatically improves heart attack recovery

Researchers created a dissolvable microneedle patch that delivers IL-4 directly to damaged heart tissue, jump-starting repair after a heart attack. The targeted approach shifts immune cells into a healing mode while improving communication between heart muscle and blood vessel cells. It avoids the systemic risks of IL-4 injections and shows promise for future minimally invasive treatment.

from Top Health News -- ScienceDaily https://ift.tt/aMCnB4e

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Old muscle stem cells can act young again but there’s a catch

Scientists at UCLA discovered a surprising reason aging muscles heal more slowly. In older muscle stem cells, a protein called NDRG1 builds ...