Blood "fingerprint" blood test predicts longevity

The British "Daily Mail" reported on July 9th that in the near future, human beings can know how old they can live, what disease they will have, and the speed of aging through blood tests. Scientists have discovered a chemical “fingerprint” in the blood that can provide a clue as to the long-term health and speed of aging in infants through a blood test at birth.

Professor Tim Specter from King's College London, UK, his team analyzed blood samples from more than 6,000 pairs of twins and found that 22 metabolites are directly linked to human aging, and the older the person is, the more metabolites are. The higher the content.

One of the metabolites, C-glyTrp, is directly linked to a variety of physiological factors, including: lung function, bone density, blood pressure, cholesterol levels, and birth weight. Professor Specter said: "All along, scientists have learned that birth weight has an important impact on people's middle-aged and elderly health. People with young people with low birth weight are more likely to suffer from middle-aged and older diseases." Therefore, it is a process of aging. Have a decisive influence.

Humans may modify genes during infancy to avoid middle-aged and older diseases.

The study found that the concentration of C-glyTrp may have been determined in the uterus and is influenced by the level of nutrition during fetal development. Scientists said that this study shows that these aging markers can be discovered through blood tests in the future, providing more clues for the aging process and paving the way for the development of treatments for geriatric diseases.

Specter said: "As for how birth weight is related to middle-aged and elderly health, the molecular mechanism is still unclear, but this discovery reveals one of them."

Dr. Anna Valdez, a researcher, said: "The aging process of human beings is affected by multiple factors such as genes, lifestyle and environment. Genes are just a part of them. We can change the molecular reaction by changing genes and influence the process of aging." Even if it is The genetically identical twins, birth weight and C-glyTrp content are also different. The researchers believe that this may be because the twins absorb nutrients in the uterus and the environment encountered is different.