New clinical study probes how light fights psoriasis

Ultraviolet light is a proven treatment for psoriasis, one of humanity`s oldest known diseases. Sunshine can also beat back the chronic autoimmune disorder of the skin. But explaining light`s therapeutic effects has been difficult. `We know it works, but we want to know how,` says Michelle Lowes, an assistant professor of clinical investigation in the Laboratory for Investigative Dermatology at Rockefeller University. `Does it target the pathways that we think are important in the disease?`

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