Document Detail

Beta2-microglobulin and alpha1-microglobulin as markers of balkan endemic nephropathy, a worldwide disease.
MedLine Citation:
PMID:  21332340     Owner:  NLM     Status:  In-Data-Review    
Background: Urine beta2-microglobulin (beta2-MG) was mainly used as a tubular marker of Balkan endemic nephropathy (BEN) but recently alpha1-microglobulin (alpha1-MG) was proposed for the diagnosis of BEN. In this study, the potential of urine beta2-MG, alpha1-MG, albumin, and total protein in the differentiation of BEN from healthy persons and patients with glomerulonephritis (GN) and nephrosclerosis (NS) was examined. Methods: This study involved 47 patients with BEN, 36 with GN, 11 with NS, 30 healthy subjects from BEN families, and 46 healthy subjects from non-BEN families. Results: In BEN patients area under the curve (AUC) for urine beta2-MG (0.828) and alpha1-MG (0.782) was higher than for urine albumin (0.740), but in GN patients AUC for urine protein (0.854) and albumin (0.872) was significantly higher than for the two low molecular weight proteins. AUC for all four urinary markers in NS patients was significantly lower than in BEN patients, ranging between 500 and 595. Median urine beta2-MG excretion in BEN patients was 17.5 times higher than in GN patients and 18.3 times higher than in controls; median alpha1-MG excretion was higher only 3.0 and 2.25 times, respectively. In the differentiation of BEN from healthy controls, beta2-MG had higher sensitivity and specificity at the cutoff levels (p < 0.001) than alpha1-MG (p < 0.05). In the differentiation of BEN from GN, beta2-MG was the best marker. Conclusion: All four urinary markers can be used for the differential diagnosis of BEN, beta2-MG being the best. Like in aristolochic acid nephropathy, beta2-MG seems to be an early marker of tubular damage in BEN.
Vladisav Stefanović; Ljubica Djukanović; Rade Cukuranović; Danica Bukvić; Višnja Ležaić; Ivko Marić; Sanja Simic Ogrizovic; Ivan Jovanović; Predrag Vlahovic; Ivana Pešić; Vidosava Djordjević
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Renal failure     Volume:  33     ISSN:  1525-6049     ISO Abbreviation:  Ren Fail     Publication Date:  2011  
Date Detail:
Created Date:  2011-02-21     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8701128     Medline TA:  Ren Fail     Country:  England    
Other Details:
Languages:  eng     Pagination:  176-83     Citation Subset:  IM    
Institute of Nephrology, Faculty of Medicine, Niš, Serbia;
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