COVID-19 infections accelerate lung aging: study

2021-12-14 20:23:56Xinhua Editor : Xue Lingqiao ECNS App Download
Special: Battle Against Novel Coronavirus

Chinese scientists have revealed that COVID-19 infections significantly accelerate the aging of lung tissue, especially in the elderly.

A report by the Science and Technology Daily showed that the main cause of death of COVID-19 patients was respiratory failure caused by severe lung injury.

To determine which parts of the lungs were damaged by the virus, a joint Chinese research team analyzed a variety of cells, including immune cells, in lung tissue from autopsy samples of elderly COVID-19 patients.

According to their research results published in the journal Nature Cell Biology, some biomarkers of cellular senescence and levels of inflammatory factors in the lung cells increased significantly.

"We saw apoptosis and shedding of long epithelial cells," said Liu Guanghui, a member of the team from the Institute of Zoology under the Chinese Academy of Sciences.

The research also revealed that the active substances, which originally supported the normal functions of alveoli, on cell surfaces also reduced, leading to the degeneration of some basic respiratory functions of alveoli.

Besides the lungs, COVID-19 may also accelerate other organs' aging after attacking them, Liu said, adding that related research is underway. 

Related news


Most popular in 24h

MoreTop news


Back to top About Us | Jobs | Contact Us | Privacy Policy
Copyright ©1999-2021 All rights reserved.
Reproduction in whole or in part without permission is prohibited.
[网上传播视听节目许可证(0106168)] [京ICP证040655号]
[京公网安备 11010202009201号] [京ICP备05004340号-1]