1. Department of Experimental and Clinical Pharmacology; University of Minnesota; Minneapolis Minnesota USA
2. Key Laboratory of Hunan Province for Integrated Traditional Chinese and Western Medicine on Prevention and Treatment of Cardio-Cerebral Disease; Hunan University of Chinese Medicine; Changsha Hunan China
3. Department of Pathology; Center for Free Radical Research and Medicine; University of Alabama at Birmingham; Birmingham Alabama USA
4. Biochemisches Institut; CAU Kiel; Kiel Germany