One of the respiratory viruses with the highest rate of dissemination, the coronavirus, sparked a global pandemic that claimed the lives of roughly six million people. As a result, various vaccinations and medications to lessen disease severity and hasten patient recovery were developed quickly. The purpose of this study was for coronavirus patients with acute lung distress to have their serum levels measured and compared to healthy controls. One hundred eighty blood samples from respiratory infections syndrome coronavirus patients between the ages of (13-80) were included in this case-control research. Results showed that human leukocyte antigen-C (HLA-C) serum concentrations were measured in patient groups compared to healthy groups. Patients with acute lung symptoms of coronavirus had higher serum levels of HLA-C, and the outcomes were contrasted using the Kruskal-Wallis. Upon testing, it was discovered that their serum levels for HLA-C showed a significant difference (P< 0.05). There were▫severe corona patients without pneumonia having a level of 40.03 ng/ml, severe corona patients with pneumonia having a level of 47.93ng/ml, non-severe corona patients without pneumonia having a level of 46.83 ng/ml, non-severe corona patients with pneumonia cases having a level of 61.15 ng/ml and with controls having a level of 17.65 ng/ml, (P ≤0.001). An increase in HLA-C serum level led to contribute to the immune storm that changes immunoregulatory▫such as including reducing the number ofˑallogeneic made by mixing lymphocyteˌcultures, death of the natural killer cell and CD8+ˌT lymphocytes, and inhibition of alloreactive cytotoxic T lymphocytes (CTL) activity.
Acute respiratory syndrome coronavirus, ELSA test, Human leukocyte antigen (HLA-C), Pneumonia
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