Proteinuria in the prognosis of IgA nephropathy

F. Aucella, G. S. Netti, M. Piemontese, I. R. Cincione, B. Infante, L. Gesualdo

Research output: Contribution to journalArticlepeer-review


IgA Nephropathy (IgAN) is the most common lesion causing primary glomerulonephritis in the world. The main clinical predictors of progression are: elevated blood pressure, high histological score and proteinuria. Although elevated serum creatinine concentration at diagnosis, increased excretion of cytochines, age at onset, obesity and genetic factors may all influence clinical outcome, it is quite clear that proteinuria is the hallmark of renal damage in IgAN. Patients with IgAN and little or no proteinuria (3 g/day. The product of duration (years) and urinary protein excretion (g/day) at the time of renal biopsy is more significantly correlated with progression. So, this so called proteinuria index may be a useful predictor for glomerular and interstitial histopathological changes and the fate of renal function in IgAN. The progression of IgAN may be slowed by antihypertensive and antiproteinuric therapy, such as angiotensin converting enzyme inhibitors and/or angiotensin II receptor blockers, that can minimize secondary glomerular injury. Proteinuria has been shown to be an adverse prognostic factor in IgAN, with a strong relationship between proteinuria and prognosis and established importance of remission. Consequently, targeting proteinuria may be a valid surrogate for individualized kidney protective therapy.

Original languageEnglish
Pages (from-to)235-248
Number of pages14
JournalMinerva Urologica e Nefrologica
Issue number3
Publication statusPublished - Sep 2009


  • Angiotensin-converting enzyme inhibitors
  • Glomerulonephritis, IGA
  • Kidney failure
  • Kidney failure, chronic
  • Proteinuria
  • Receptors, angiotensin
  • Risk factors

ASJC Scopus subject areas

  • Nephrology
  • Urology


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