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Objective: To investigate the mechanism of capsaicin in treating active psoriasis vulgaris. Methods: VIP protein in active psoriatic lesions before and 30 days after the treatment of capsaicin ointment was detected by immunohistochemistry. Results: There was positive expression of VIP in all layers of psoriatic lesions epidermis (95.5%), but after the treatment of capsaicin ointment, there was nearly no expression of VIP protein in epidermis(22.2%). Conclusion: Capsaicin inhibits proliferation and induces the differentiation of keratinocytes through down-regulating the expression of VIP in psoriatic epidermis.
Objective: To investigate the mechanism of capsaicin in treating active psoriasis vulgaris. Methods: VIP protein in active psoriatic lesions before and 30 days after the treatment of capsaicin ointment was detected by immunohistochemistry. Results: There was positive expression of VIP in all layers of psoriatic Lesions epidermis (95.5%), but after the treatment of capsaicin ointment, there was nearly no expression of VIP protein in epidermis(22.2%). Conclusion: Capsaicin inhibits the proliferation and induces the differentiation of keratinocytes through down-regulating the expression of VIP in Psoriatic epidermis.