New research results allow astronauts to eat "reassuring" - space travel almost no damage to the human immune system
December 12, 2018 Source: Science and Technology Daily Author: Liu Xia
Window._bd_share_config={ "common":{ "bdSnsKey":{ },"bdText":"","bdMini":"2","bdMiniList":false,"bdPic":"","bdStyle":" 0","bdSize":"16"},"share":{ }};with(document)0[(getElementsByTagName('head')[0]||body).appendChild(createElement('script')) .src='http://bdimg.share.baidu.com/static/api/js/share.js?v=89860593.js?cdnversion='+~(-new Date()/36e5)];According to a recent report by the British "Independent", the latest research by scientists in the United States and the United Kingdom shows that space flight has little adverse effect on the concentration of B cells, the main part of the human immune system. This study is being carried out on the International Space Station and will be implemented in the future. The astronauts of the deep space exploration mission temporarily ate a "centering pill".
B cells produce antibodies in the body to fight infection, and astronauts must keep their B cell immunity at their best to protect themselves from bacteria and viruses.
It has been previously believed that space travel can have a negative impact on the immune system. Researchers say the new data may determine whether astronauts should be vaccinated during space flight. Scientists tested blood samples from 23 astronauts who had worked on the International Space Station for six months. The blood samples were collected before, during and after the astronauts flew to the International Space Station. They found that space travel did not cause changes in B cell concentration. .
Dr. John Campbell, a lecturer at the University of Bath in the United Kingdom, said: "This is the first comprehensive study to prove that long-term space flight has limited impact on human astronaut B cell frequency and antibody production. Our results for the International Space Station resident astronauts And for all future astronauts who will be performing long-term space missions, this is good news."
Blood samples for research were sent from space to Earth via the Russian "Alliance" spacecraft. The astronauts involved in the study ranged in age from 37 to 57 years and performed 18 independent missions on the International Space Station. The researchers also collected blood samples from six ground personnel from a control group. The study was published in the latest issue of Applied Physiology.
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