Higher PD-1 levels mean fewer CD8+ T cells in alopecia areata hair follicles.
September 2025 in “Acta Biomaterialia” A new tissue adhesive helps wounds heal better by allowing more cells to enter.
April 2023 in “Journal of Investigative Dermatology” Higher PD-1 levels are linked to fewer immune cells in hair follicles in alopecia areata.
January 2025 in “SSRN Electronic Journal”
March 2024 in “International Journal of Cosmetic Science” Dandruff is linked to increased T cells and weakened immune protection in hair follicles.