1. From the Department of Biological Chemistry and Nutrition, University Hohenheim, Stuttgart, Germany; the Department of Infection Biology, Max-Planck Institute for Biology, Tübingen, Germany; the Department of Dermatology, University Magdeburg, Magdeburg, Germany; the University Eye Hospital, Department II, Tübingen, Germany; and the Hebrew University, Department of Nutritional Sciences, Rehovot,