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Trichohyalin in hair can trigger immune attacks in alopecia areata.

In this study, researchers reported that a newly developed interferon-γ release assay for cell-mediated immunity to SARS-CoV-2 nucleocapsid peptides demonstrated high sensitivity and specificity, making it a robust tool for routine diagnostic tests and potentially useful in predicting clinical outcomes after pathogen re-exposure.

This study found that in lamivudine-resistant hepatitis B patients, tenofovir significantly reduced HBV DNA levels faster and more consistently than adefovir, reaching undetectable levels in all treated patients by 44 weeks.

Lower adrenal hormone levels may cause hair loss in postmenopausal women, certain patterns help diagnose nail cancer, and a gene variant linked to higher skin cancer risk in kidney transplant patients suggests monitoring folate levels.

This study found that anagen stage protein homogenates and specific epitopes from melanogenesis proteins activated CD8 T cells, suggesting alopecia areata is an anagen-specific disease.