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Blocking an aging-related enzyme may restore muscle strength

Researchers labeled the protein a “gerozyme” because of its link with aging

An image of green nerve cells attached to red muscle fibers.

Nerve cells (green) and muscle fibers (red) meet at connections called synapses in this colored scanning electron microscope image. Blocking an aging-related enzyme helped to restore the synapses in old mice, researchers report.

Don W. Fawcett / Science Source

By Aimee Cunningham

As people age, their muscles tend to dwindle and weaken, especially with lack of use.