[1] Humboldt Univ, Univ Clin Charite, Berlin, Germany
[2] Free Univ Berlin, Inst Pharmacol & Toxicol, D-1000 Berlin, Germany
[3] Free Univ Berlin, Dept Nephrol, D-1000 Berlin, Germany
[4] Free Univ Berlin, Inst Mol Biol & Biochem, D-1000 Berlin, Germany
[5] Univ Heidelberg, Univ Clin Mannheim, Dept Nephrol, Heidelberg, Germany
[6] Schering Res Labs, Berlin, Germany