Renal outcome in IgA nephropathy according to Oxford classification and ultrastructural analysis in a Brazilian center .

Aims: Correlate clinical and histologic features with renal outcome in patients with biopsy-proven IgA nephropathy (IgAN).

Materials And Methods: Retrospective analysis of records and renal tissue of IgAN patients. Histology was revised according to MEST score of Oxford classification.

Electrophoretic pattern of concentrated urine: comparison between 24-hour collection and random samples.

The electrophoretic pattern of concentrated urine samples can be used to identify the type of proteins leaking into the urine and has diagnostic and prognostic value, providing information about the location (glomerular or tubular) and degree of renal injury. This test usually requires a 24-hour urine collection, which can be inconvenient because of its heavy dependence on patient compliance and frequently is unreliable because of errors in collecting a complete 24-hour urine sample. In this study, we compared the electrophoretic pattern in 24-hour urine collections and random samples among patients with glomerular diseases and a wide range of proteinuria.