Unveiling the Immune and Vitamin Profiles of Blood: Potential Biomarkers for Alopecia Areata

May 2025 in “ PeerJ ”

Jin Ke, Fangfang Chen, Yu‐Pei Chen, Mingli Zhang, Li Ma

alopecia areata IL-4 TNF-α IFN-γ IgG4 vitamin B2 vitamin B5 vitamin B3 vitamin A cytokines interleukin-4 tumor necrosis factor alpha interferon gamma immunoglobulin G4

From the encyclopedia

Alopecia Areata →

autoimmune disorder causing patchy hair loss

vitamin b2 →

Vitamin B5 →

Studysummary This study observed that, among alopecia areata patients in Fujian, China, lower IgG4 levels and higher IFN-γ levels were statistically significant, suggesting their potential role as biomarkers for the condition and highlighting avenues for future therapeutic developments.

Our plain-language summary. Not medical advice or a treatment recommendation. Consult a qualified healthcare professional before changing treatment. Full disclaimer

This study examined the immune and vitamin profiles of 28 alopecia areata patients and 28 healthy controls in Fujian, China, to identify potential biomarkers for the condition. Key findings include elevated levels of IL-4, TNF-α, and IFN-γ, and decreased levels of IgG4 in alopecia areata patients, suggesting these could serve as diagnostic markers. Vitamin analysis showed subtle differences, with alopecia areata patients having slightly lower levels of vitamins B2 and B5, but higher levels of vitamin B3 and vitamin A. The study highlights the potential role of specific cytokines and vitamins in the pathogenesis of alopecia areata, with significant differences in IgG4 and IFN-γ levels warranting further investigation into their roles in the disease's pathogenesis and potential integration into diagnostic models.

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