To know your biological age, check your urine sample

Knowing your biological age is also important, as it can be used to determine the risk of age-related diseases or even the risk of death. In addition, it is important to know the biological age of test subjects when developing anti-aging drugs.

In a previous study of rats and monkeys, scientists discovered that bio-markers are known as: 8-oxo-7,8-dihydroguanosine (or 8-oxoGsn) has increased. in urine samples when we grow up. This biological substance is produced by oxidation of RNA (ribonucleic acid) , a process involved in biological aging.

Biomarkers promise as a reliable indicator for determining biological age.

"Oxygen byproducts created during normal metabolism can damage the oxidation of biological molecules in cells, such as DNA and RNA," Jian-Ping Cai, National Genetics Center. The family in Beijing said. "As we age, we suffer from increasing oxidative damage, and thus the level of oxidative signs increases in our bodies."

In this new study, researchers believe that this same thing is easily noticed in the urine of humans. Using a fast analytical technique called liquid chromatography - ultra-high-performance liquid chromatography , they analyzed samples collected from 1,228 people from 2 to 90 years old. Certainly, in people 21 years of age and older, there has been an increase in 8-oxoGsn in the urine.

According to Cai, this finding makes biomarkers promising as a reliable indicator of biological age.

This study is also related to the work of scientists from Sichuan University, described in a recent article published in Frontiers in Aging Neuroscience.