Neurophysiologists have found that coronavirus infection often does not penetrate the brain tissue, but contributes to the weakening of the walls of small vessels inside it.
As a result, patients are more likely to experience bleeding and strokes.
The potentially fatal effects of the coronavirus on the brain have been confirmed. Scientists did not find particles of the virus either in the brain of patients or in its vessels.
That is, the capillaries of the brain collapsed not due to infection with SARS-CoV-2, but due to the very high activity of the immune system, which began to attack not only the virus, but also healthy cells of the blood vessels.
The results of the study were published by the New England Journal of Medicine, writes TASS.
All of these patients died very quickly and unexpectedly. The causes of their death were not always related to the penetration of SARS-CoV-2 into their lungs. Initial analysis showed that their deaths were associated with brain damage, but how these damage appeared, scientists do not know.
The MRI scans showed that there were many foci of inflammation and minor bleeding in both areas of the brain. That is, the walls of small capillaries and other vessels have become permeable to blood and the proteins it contains. Scientists examined slices of these parts of the nervous system in the hope of finding virus particles in them and finding out the cause of the death of vascular and brain cells.
Photo: press service of the Krasnodar Territory Administration
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