November 2023 in “Journal of Investigative Dermatology” EGFR-targeted cancer therapy can cause skin issues starting at hair follicles, leading to inflammation.
This article discusses folliculitis decalvans as a cicatricial alopecia caused by a neutrophilic immune reaction to microbial biofilms, but it reports no new clinical results.
April 2019 in “Journal of Investigative Dermatology” This study found that the gut microbiota in alopecia areata patients showed distinct dysbiosis, with an overrepresentation of Firmicutes and underrepresentation of Bacteroides, aligning with patterns seen in other autoimmune disorders.
March 2021 in “Actas Dermo-Sifiliográficas” This review discusses the scalp microbiome's unique features and its potential role in hair disorders, suggesting that microbiome-targeted treatments could offer new therapeutic options, though no clinical results are reported.
December 2025 in “Cosmetics” This research identified unique gut microbiota patterns in alopecia areata patients, with potential as diagnostic biomarkers and suggesting avenues for microbiota-focused therapies.