Superoxide as a messenger of endothelial function.

Acknowledgment The current work was carried out at the Department of Biological Chemistry of the University of Konstanz during the period of 1999-2002. Working there was at the same time instructional and fun, both of which being constantly upheld by my supervisor Prof. Dr. Volker Ullrich. Besides instructions, I like to thank him for his excellent support and working facilities he provided. I am grateful to all of my colleagues and co-workers for their friendship, collaboration and support especially to Dr. also my diploma candidates for their very dedicated cooperation and the numerous I had the privilege to become a member of the " Graduiertenkolleg Biochemische Pharmakologie " and I profited very much from the collaborations and support among the members, its seminars, its courses and the attendance of national and international congresses. I wish to thank the organisers Prof. Prof. Dr Ullrich for their professional running the " Kolleg ". Last and final thanks go to my beloved family.