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Use of Light to Stop Itch Could Provide Relief From Skin Diseases

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Scientists at the European Molecular Biology Laboratory (EMBL) in Rome have used light to stop itch — at best an annoyance and at worst an uncomfortable chronic symptom — in mice. They used NIR light to activate a phototoxic agent that selectively targets itch-sensing cells, which are located in the upper surface of the skin. When the agent is injected into a mouse’s affected skin area and the area is illuminated with the NIR light, the itch-sensing cells withdraw from the skin, reducing itch-associated behaviors in the mouse and allowing the skin to heal. The researchers...Read full article

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