Resumen de Betrayed by your own blood
Old blood may damage organs and contribute to ageing. Now a compound has been developed that seems to protect against this, preventing mouse brains from ageing. The effects of blood on ageing were first discovered in experiments that stitched young and old mice together so that they shared circulating blood. Older mice seem to benefit from such an arrangement, developing healthier organs and becoming protected from age-related disease. But the younger mice age prematurely. Now Hanadie Yousef at Stanford University in California seems to have identified a protein that is causing some of the damage, and has developed a way to block it. Yousef has found that the amount of a protein called VCAM1 in the blood increases with age.
