March 2024 in “International Journal of Cosmetic Science” This study observed that dandruff-affected scalp skin has increased T-cell infiltration in the epidermis and a reduction in the hair follicle's physiological immune privilege, particularly in the suprabulbar outer root sheath area, indicating a distinct immune microenvironment compared to healthy scalp.
253 citations
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December 2007 in “Journal of Investigative Dermatology” This study suggests that human hair follicles may actively suppress natural killer cells, which contrasts with the observed defects in NK cell regulation in alopecia areata.
5 citations
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August 1981 in “Archives of Dermatology” This paper examines the potential autoimmune basis of alopecia areata, but reports no new clinical results; the focus is on analyzing complement levels and macrophage migration inhibition factor in patients.
14 citations
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March 2002 in “The journal of investigative dermatology/Journal of investigative dermatology” This study found that serum MIF levels were significantly higher in patients with extensive alopecia areata compared to those with mild alopecia areata and healthy individuals.
April 2018 in “Journal of Investigative Dermatology” This study found that the loss of transcription factor Ovol2 in epidermal and hair follicle stem cells leads to migration defects, which are partially improved by deleting the EMT-inducing Zeb1.
