Biology researchers at Georgia State University discovered that infection of the nasal passages of mice with the virus that causes corona led to a rapid and escalating attack on the brain that caused severe disease, even after the lungs succeeded in clearing themselves of the virus, according to a report by the Neuroscience Journalneuroscience Scientific.
Assistant Professor Mukesh Kumar, the lead researcher of the study, said that the results have implications for understanding the wide range of symptoms and disease severity among humans infected with Coronavirus, adding: “Our thinking that it is related to a respiratory disease is not necessarily correct, and once it affects the brain, it can affect Anything because the brain controls the lungs, the heart and everything, and the brain is a very sensitive organ, it is the central processor for everything “.
The study, published by the “Virus” journal, evaluated virus levels in multiple organs of infected mice. A control group of mice received a dose of sterile saline solution in their nasal passages..
Kumar said that Corona survivors who have reached the brain are also at increased risk of future health problems, including autoimmune diseases, Parkinson’s disease, multiple sclerosis and general cognitive decline.
Kumar explained that early in the epidemic, studies conducted on mice focused on the lungs of animals and did not determine whether the virus had invaded the brain, but the new study confirmed that levels of the virus in the lungs of infected mice reached their peak three days after infection, and then began to The decrease, however, very high levels of the infectious virus were found in the brains of all infected mice on the fifth and sixth day, which is the time when symptoms of severe disease appeared, including difficulty breathing, confusion and weakness, and the study found that levels of the virus in the brain were higher. About 1,000 times that of other parts of the body.
Kumar stressed that the results can help explain why it appears that some Corona patients are on the way to recovery, with improved lung function, and then suddenly experience a rapid relapse and death, and other research and studies indicate that the severity of the disease and the types of symptoms that different people experience can depend. Not only how much viruses a person was exposed to, but also how they entered the body.
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