Higher PD-1 levels mean fewer CD8+ T cells in alopecia areata hair follicles.
April 2023 in “Journal of Investigative Dermatology” Higher PD-1 levels are linked to fewer immune cells in hair follicles in alopecia areata.
March 2024 in “International Journal of Cosmetic Science” Dandruff is linked to increased T cells and weakened immune protection in hair follicles.
19 citations
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March 1997 in “Journal of Cutaneous Pathology” Alopecia areata involves specific T-cells, unlike androgenetic alopecia.
6 citations
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April 2017 in “Experimental dermatology” CD80CD86 deficiency causes hair loss by disrupting regulatory T cells.