Botulinum Toxin A for Treatment-Resistant Alopecia Areata: A Critical Review of Evidence and Mechanisms
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Botulinum Toxin A, Treatment-Resistant Alopecia AreataAbstract
Background: Alopecia areata (AA) is a T cell–mediated autoimmune disorder characterized by nonscarring hair lossresulting from collapse of hair follicle immune privilege and activation of cytotoxic lymphocytes. Although recentadvances, particularly Janus kinase (JAK) inhibitors, have transformed management of moderate-to-severe disease, a subset of patients remains treatment-resistant or experiences
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References
Gilhar A, Etzioni A, Paus R. Alopecia areata. N Engl J Med. 2012;366(16):1515-1525.
Pratt CH, King LE Jr, Messenger AG, Christiano AM, Sundberg JP. Alopecia areata. Nat Rev Dis Primers. 2017;3:17011.
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