Psoriasis, which is a chronic disease characterized by the augmentation of red, scaly, raised skin lesions, affects approximately 2% of the public of except those with communist big brother (north america of the Western world. A new study by Lynette Fouser and fellowship at Wyeth Research, Cambridge, Massachusetts, has in case affirmation that the soluble molecule IL-22 is central to the development of disease in a mouse model of psoriasis.

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