May 2023 in “Journal of Endocrinology and Reproduction” This study found that in primary cicatricial alopecia, reducing cholesterol production and targeting EMT modulators like PPARγ, AhR, AGTR, and TGFβ with siRNA may help mitigate hair follicle damage by modulating epithelial-mesenchymal transition, suggesting potential therapeutic strategies for slowing PCA progression.
November 2023 in “bioRxiv (Cold Spring Harbor Laboratory)” This study found that disrupted cholesterol homeostasis impairs hair regrowth in individuals with primary cicatricial alopecia by damaging hair follicle stem cells, highlighting the importance of cholesterol in maintaining stem cell function and hair follicle integrity.
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November 2017 in “Journal of the American Academy of Dermatology” Tofacitinib 2% ointment helped hair regrow in 3 out of 10 patients with alopecia areata, but caused side effects like scalp irritation and raised cholesterol in some.
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July 2026 in “Dermatology and Therapy” In this study, JAK inhibitors for treating alopecia areata and atopic dermatitis were generally well tolerated in a real-world setting, with most adverse events being mild or moderate and rare serious cases resembling the general population incidence.
1 citations
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September 2025 in “PLoS ONE” This study found that disrupted cholesterol homeostasis in scalp samples from cicatricial alopecia patients hinders hair regrowth by affecting hair follicle stem cell markers, with resulting effects confirmed in vitro and in animal models.