18 citations,
January 2017 in “Annals of dermatology/Annals of Dermatology”
Certain immune cells contribute to severe hair loss in chronic alopecia areata, with Th17 cells possibly having a bigger impact than cytotoxic T cells.
Hair loss theories discussed include poor blood flow, scalp tension, inflammation, and DHT. Treatments mentioned are massaging scalp, minoxidil, finasteride, and RU58841.