Young blood - the key to preventing aging?

A study published at the American Association of Neuroscience conference found that injecting young blood from young mice for older mice may help reverse some of the effects of cognitive decline in age. work.

Last year, the Stanford University team led by expert Saul Villeda proved they could boost the growth of new cells in the old mouse brain by transmitting the blood to them. In the latest study, they examined cognitive changes by linking the circulatory system of young mice and old mice so that their blood could be mixed together - a technique commonly used for research. The immune system is called heterochronic parabiosis . After a few days, experts rechecked the health of old mice and found many clear signs that the aging process had slowed down, typically the number of stem cells in the rat brain had increased. In particular, the level of connection between cells, signs to assess brain function, also increased by 20%.

Researcher Villeda continues to test the "rejuvenation" activity in mice by injecting a small amount of serum taken from 2-month-old mice into an 18-month-old mouse for a month. Later, these 18-month rats were put into a water maze to test their memory. The results show that their memory is not inferior to 4-6 months old mice.

According to Villeda, young blood has changed the effects of aging by increasing the level of important chemical factors in the blood, often declining as animals age. Since the composition of rat blood also changes as they age, similar to those in humans, the team hopes that the results will also recur when tested on humans so that someday it could help them. We repel the negative effects of the aging process.