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Pathogenetic factors of acne that can be inhibited by botulinum neurotoxin type A. α7nAChR: alpha 7 nicotinic acetylcholine receptor; AA: arachidonic acid; BoNTA: botulinum neurotoxin type A; COX-2: cyclooxygenase-2; Epi: epinephrine; NE: norepinephrine; SP: substance P; TRPV1: transient receptor potential vanilloid subtype 1.
