Scientists identify ‘youth factor’ in blood cells that speeds fracture repair

Researchers previously showed that introducing bone marrow stem cells to a bone injury can expedite healing, but the exact process was unclear. Now, the same team believes it has pinpointed the ‘youth factor’ inside bone marrow stem cells — it’s the macrophage, a type of white blood cell, and the proteins it secretes that can have a rejuvenating effect on tissue.

Original source: https://www.sciencedaily.com/releases/2018/12/181205093710.htm