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This study observed a significant association between antigliadin antibodies (IgA and IgG) and alopecia areata severity, suggesting that serological tests could help diagnose subclinical celiac disease in these patients, with IgA and IgG showing 100% sensitivity and specificity at specific cutoff points.

This study found a significant association between antigliadin antibodies (IgA and IgG) and alopecia areata severity, suggesting a need for celiac disease screening in these patients.

This study observed that male sex, diabetes mellitus, and high maximum C-reactive protein levels during the acute phase of COVID-19 were linked to elevated anti-SARS-CoV-2 antibody levels.

This study found that individuals with alopecia areata had significantly higher serum levels of retinol-binding protein 4 and increased IgG immunoreactivity against it, suggesting a role in the disease's pathogenesis.

This review discusses genetic and environmental factors contributing to autoimmunity in alopecia areata and reports no new clinical findings, emphasizing the need for further study on its aetiology and pathophysiology.