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health
AFP
The Guardian reported that researchers at Yale University, one of the oldest American universities, discovered an immune characteristic in patients with Covid-19, affecting the acute course of the infection.
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The scientists explained that a large number of “wrong” antibodies in the blood that target the organs, tissues and the immune system itself and not to fight the invading virus, this number not only caused complications for the “Covid-19”, it was also the reason for the long course of the infection. .
The specialists compared the immune responses of patients and uninfected people and found many “wrong” abnormal antibodies in those infected that block antiviral defenses, destroy beneficial immune cells and attack the body in various directions, from the brain, blood vessels and the liver to the bones and the digestive system.
Further research showed that the more “antibodies” there are in the blood, the poorer the chance of tolerance to infection.
And more of these antibodies have been detected in patients with “Covid-19” than in people with the autoimmune disease “lupus.”
Scientists point out that normal antibodies prevent viruses by attaching to proteins on their surface, but autoantibodies are irregularly shaped, mistakenly binding to proteins in human cells.
The experts also explained that despite the presence of a certain amount of autoantibodies in some patients before the “Covid-19” infection, others appeared as the infection progressed.
And it has been reported that more than 5% of hospitalized patients have antibodies that weaken an important component of immune defense controlled by proteins called interferons.
Scientists have long known that diseases like rheumatoid arthritis, lupus, and multiple sclerosis are caused by a defect in the immune system and its attack on the body. However, the ability of a viral infection to induce autoimmune responses has not been well studied, but work is being done in this direction.
Source: Novosti
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