All over the world, the so-called biobanks, i.e. places where donors, both healthy and sick, can donate biological material for research, thus contributing to the development of science and medicine, and allowing scientists to better understand phenomena such as the coronavirus pandemic. And it is from the latest research conducted by UK Biobank, the largest British unit of this type, that we learn that people who have had Covid-19 may unfortunately experience gray matter loss over time. It was a long-term experiment comparing pre-pandemic brain scans of 782 volunteers, which were then confronted with post-pandemic results from 394 Covid-19 recoveries who returned to the study and 388 healthy people.
In people who have had Covid-19 before, scientists have noticed a significant effect of the disease on brain tissue, including gray matter loss in certain regions of the brain. What should not be a big surprise to anyone is, among others o areas responsible for smell and taste, which many people have a problem with when they are ill. The gray matter of the brain is a part of the central nervous system that generally controls all functions of the brain – it allows us to control movement, memory and emotions, so negative changes in this area are not too optimistic. Moreover, the researchers also suggest that losses in memory-related regions of the brain may increase the risk of such patients developing dementia as well as heart attacks later on, but this is an issue that requires additional research.
Some consolation, however, is the fact that the scans underpinning the study were for serious and very serious cases of Covid-19, while most people experience mild or none at all, so there may be less or less brain changes in this case as well. . Except that we are talking about assumptions here, because scientists appeal that research into the effects of the disease on brain tissue is too little, and this is a fundamental need, and we must also check the effects of Covid-19 in asymptomatic or scanty patients. Interestingly, it has still not been possible to find confirmation whether the defects in the brain tissue are caused by the spread of the virus in the brain or are already a result of the disease.
Source: GeekWeek.pl – Wiadomości by www.geekweek.pl.
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