N-acetylcysteine protects against renal injury following bilateral ureteral obstruction.

"Conflict of interest statement . None declared."

"This study received financial support in the form of a grant from the Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP, Foundation for the Support of Research in the State of São Paulo, proc. n° 2006/61703-5). Dr Antonio C. Seguro is a Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq, National Council for Scientific and Technological Development) scholar. The authors would like to thank Jefferson D. Boyles for the editorial assistance provided. A portion of this paper was presented in abstract form at the annual meeting of the American Society of Nephrology, San Diego, 2006 (published in J Am Soc Nephrol 17: 413A, 2006) and at the XLIV Congress of the European Renal Association-European Dialysis and Transplant Association (ERA-EDTA), Barcelona, 2007 (published in NDT 22, supplement 6: vi5–6: 456A, 2007)."