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Elaf from Beirut: After the spread of the Corona epidemic globally at the beginning of last year, the wave caused swelling in the toes of some of the injured, and some of them in the hands, baffling the scientific community.
The reason for the confusion was that many of those infected with this condition reported losing their sense of smell and taste, although most of them also tested not infected with the Corona virus, and most of those who suffered from swollen toes were teenagers and young adults, according to the New York Times.
In the case of infection, the toes appear red or purple in white people, while they are often purple or brown in people of color, and cause a painful burning or itching sensation, and sometimes it is difficult for the patient to wear shoes or walk because of them.
A French study published in the British Journal of Dermatology, Tuesday, sheds light on the condition that has become called “Covid fingers”, and indicated that these symptoms may be one of the side effects of the transformation of the immune system into a state of high alert in response to exposure to the virus, which may lead to damage cells and tissues in the process.
High levels of interferon
French researchers analyzed blood samples and skin biopsies from 50 patients with frostbite-like symptoms for the first time in April 2020, who were referred to Saint-Louis Hospital in the French capital, Paris.
According to the study, a little more than half of the patients had other symptoms indicating infection with the emerging coronavirus, such as coughing, shortness of breath and loss of sense of smell, but all of their PCR tests showed that they were not infected with Covid-19.
The study indicated that the samples showed high levels of type 1 interferon, a protein that activates the body’s immune system to fight viruses, but it may also cause collateral damage, as researchers also found high levels of antibodies that can unintentionally attack the body’s cells. .
The study suggests that abnormal changes in the linings of blood vessels may also play a role in the appearance of swollen toes or hands.
The study authors say that although the relationship between infection with the emerging corona virus and the emergence of a condition similar to swollen toes and hands in some, is still controversial, “the record number of infection in 2020 strongly indicates that this disorder is closely related to infection COVID-19″.
The new study suggested that treating “Covid fingers” with topical or systemic anti-inflammatory drugs may be effective.
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