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Renal biomarkers for assessment of kidney function in renal transplant recipients: how do they compare?
MedLine Citation:
PMID:  22639068     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Accurate assessment of renal function is of key importance, given its prognostic value. However, gold standard measures are cumbersome, and serum creatinine itself is an insensitive predictor, especially in renal transplant recipients. Though GFR-estimating formulae have been relied upon, they do have their own limitations. Nevertheless, renal biomarkers such as neutrophil gelatinase-associated lipocalin (NGAL) and cystatin C, among others, are now emerging as potentially useful indicators of GFR. We aimed to evaluate the diagnostic performance of NGAL versus cystatin C and eGFR using CKD-EPI, MDRD and cystatin C in renal transplant recipients and non-transplant CKD patients. We found a significant correlation between NGAL, serum creatinine, cystatin C and eGFR. The latter parameters were also strong predictors of serum NGAL levels. However, performance of NGAL, based on receiver operating characteristic curves, was inferior to that of the reference tests. It appears that in renal transplant recipients NGAL correlates well with cystatin C and eGFR, most strongly with cystatin-based formula. Though this suggests potential use of NGAL as a screening test, its weaker diagnostic performance raises some concern about its clinical usefulness. Larger studies are needed to explore this further.
Authors:
Samra Abouchacra; Ahmed Chaaban; Raafat Hakim; Nicole Gebran; Hanan El-Jack; Faiz Rashid; Yousef Boobes; Amna Muhairi; Qutaiba Hussain; Imran Khan; Fares Chedid; Nico Negelkerke
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-5-26
Journal Detail:
Title:  International urology and nephrology     Volume:  -     ISSN:  1573-2584     ISO Abbreviation:  -     Publication Date:  2012 May 
Date Detail:
Created Date:  2012-5-28     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0262521     Medline TA:  Int Urol Nephrol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Nephrology, Tawam Hospital, P.O. Box 152 58, Al Ain, UAE, sabouchacra@tawamhospital.ae.
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