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© Research
Publication : Journal of the American Society of Nephrology : JASN

Urinary NGAL marks cystic disease in HIV-associated nephropathy

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Journal of the American Society of Nephrology : JASN - 23 Jul 2009

Paragas N, Nickolas TL, Wyatt C, Forster CS, Sise M, Morgello S, Jagla B, Buchen C, Stella P, Sanna-Cherchi S, Carnevali ML, Mattei S, Bovino A, Argentiero L, Magnano A, Devarajan P, Schmidt-Ott KM, Allegri L, Klotman P, D'Agati V, Gharavi AG, Barasch J

Link to Pubmed [PMID] – 19628667

J. Am. Soc. Nephrol. 2009 Aug;20(8):1687-92

Nephrosis and a rapid decline in kidney function characterize HIV-associated nephropathy (HIVAN). Histologically, HIVAN is a collapsing focal segmental glomerulosclerosis with prominent tubular damage. We explored the expression of neutrophil gelatinase-associated lipocalin (NGAL), a marker of tubular injury, to determine whether this protein has the potential to aid in the noninvasive diagnosis of HIVAN. We found that expression of urinary NGAL was much higher in patients with biopsy-proven HIVAN than in HIV-positive and HIV-negative patients with other forms of chronic kidney disease. In the HIV-transgenic mouse model of HIVAN, NGAL mRNA was abundant in dilated, microcystic segments of the nephron. In contrast, urinary NGAL did not correlate with proteinuria in human or in mouse models. These data show that marked upregulation of NGAL accompanies HIVAN and support further study of uNGAL levels in large cohorts to aid in the noninvasive diagnosis of HIVAN and screen for HIVAN-related tubular damage.

http://www.ncbi.nlm.nih.gov/pubmed/19628667