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In this study involving children with alopecia areata, researchers found that adding narrowband UVB 311 nm therapy to standard treatment significantly improved hair regrowth in those with coexisting atopic dermatitis compared to those without the condition.

UV radiation may cause DNA changes in skin, certain UVB therapy helps psoriasis, a new gene mutation is linked to mild piebaldism, different immune cells affect psoriasis, a drug promotes hair growth, and some cancer drugs could treat skin barrier issues.

This review highlights that laser and light treatments could serve as safe and effective alternatives to current therapies for alopecia areata, with the excimer laser showing positive results, though further randomized controlled trials are necessary to establish optimal treatment protocols.

This study reviews the use of lasers and light therapies as treatment options for managing the two most common types of alopecia—androegenetic alopecia and alopecia areata—highlighting that existing FDA-approved drugs like minoxidil and finasteride are partially effective, necessitating additional therapeutic approaches.

This study reported that narrowband UVB treatment significantly increased WNT7B, WNT10B, and TCF7L2 gene expression in lesional skin of psoriasis patients, suggesting these genes may play a role in psoriasis pathogenesis.