2 citations
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September 2023 in “Journal of the Egyptian Womenʼs Dermatologic Society” This study concluded that exclamation mark hairs are the most reliable marker of disease activity in alopecia areata, with broken hairs, triangular hairs, and black dots also increasing the probability of active disease.
2 citations
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January 2019 in “Dermatology Review” This study found that pigmented vellus and upright regrowing hairs are the only predictive trichoscopic markers of hair regrowth in patients with alopecia totalis and universalis.
January 2026 in “Dermatologic Therapy” In this prospective study, ritlecitinib effectively reduced hair loss in patients with severe alopecia areata, with 43.3% of participants achieving a 20 or lower SALT score by week 24, and showed a good midterm safety profile.
February 2026 in “PubMed” This study observed that while hair density generally increased after PRP-based treatments for nonscarring alopecia, the extent of improvement and associated biomarker changes varied widely among individuals.
May 2025 in “Apollo Medicine” This study found that trichoscopy can be a helpful, noninvasive tool for identifying specific patterns that correlate with the clinical activity and severity of alopecia areata, enhancing its diagnosis and monitoring.