In a new study, young and old mice were surgically joined such that they shared blood circulation for three months. According to the results, the old mice did not significantly benefit in terms of lifespan. On the other hand, the young mice that were exposed to blood from old animals had significant
ly decreased lifespan compared to mice that shared blood with other young mice. The study was published on July 22 in the peer-reviewed journalResearch on rejuvenation therapies in the laboratory and clinic. Credit: Mary Ann Liebert, Inc., publishers
says “This work clarifies the question of whether the young blood or old blood control longevity, which has been debated . Are there lasting effects of heterochronic parabiosis and if so, is it a rejuvenation or aging? The work by the Pishel group established that theof the old mice does not increase after being parabiosed to young mice. In contrast, the young animals that were joined with the old mice suffer a shortened lifespan, even after being disconnected.
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