Aging reaches a dramatic inflection point in a specific number, scientists discover
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Aging seems to happen linear throughout human life, from childhood to “golden years”, but a new study has revealed a specific turning point when aging begins to accelerate in the body.
The researchers in China discovered that around 50 years, tissues and organs begin to age at a faster rate.
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The findings were based on a study of 516 samples taken from 13 human fabrics that cover five decades.
The analysis revealed an increase in the 50 years, led by blood vessels that are “remarkably susceptible” to aging.
An researcher said these findings could help with early directed interventions regarding accelerated organ aging and the risk of disease. (Istock)
To understand how individual organs age, researchers also collected tissue samples of 76 Chinese organ donors between 14 and 68 years, all of which suffered accidental traumatic brain injuries.
The samples covered seven systems, including cardiovascular, digestive, immune, endocrine, respiratory, integumentary (skin) and musculoskeletic samples, as well as blood.
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The researchers found that between the ages of 45 and 55, many tissues suffer “substantial proteomic remodeling” (important changes in proteins), particularly in the aorta (main artery of the heart), which makes them more susceptible to aging.
The researchers discovered that blood vessels are the most susceptible to aging. (Istock)
“Together, our findings feel the foundations for an understanding at the level of human aging systems through the protein lens,” summarized the researchers.
The co -author of the Guanghui Liu study, a researcher at the Beijing Institute for stem and regenerative cell medicine, discussed the study results in an interview with News Digital.
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Although aging implies a “decrease in multiple organs,” said Lui, the study aimed to determine whether organs age with a “unique rhythm.”
Certain substances in the blood, called “Senoakinas”, function as a kind of clock that tracks aging and then accelerates it, according to the expert.
A table indicates where the researchers noticed sensitivity to aging in the human body.
The blood vessels are among the first parts of the body to show signs of aging, according to the researcher, since they release proteins that can influence how the entire body ages.
Instead of something that happens to an organ at the same time, the results suggest that aging should be considered as a process of the whole body.
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Liu suggested that linking tissue and plasma profiles in the human body could allow “non -invasive” age evaluations based on blood samples.
This could help allow early and specific interventions to counteract the aging of accelerated organs and reduce the risk of disease, he said.
Angelica Stabile is a lifestyle reporter for News Digital.