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Clin Chim Acta. 2000 Jul;297(1-2):55-66.

Developments in the assessment of glomerular filtration rate.

Author information

1
Department of Clinical Biochemistry, St Bartholomew's and the Royal London School of Medicine and Dentistry, Turner Street, E1 2AD, London, UK. c.p.price@mds.qmw.ac.uk

Abstract

The assessment of the glomerular filtration rate (GFR) is the most commonly used test of renal function. The accepted reference procedure employs an exogenous clearance marker whilst the most popular test is that of serum or plasma creatinine. All of these tests have limitations, although the surrogate endogenous markers are the most practical. Cystatin C, a low molecular weight protein which can be measured by light scattering immunoassay, possesses many of the attributes required of the ideal GFR marker. Data on reference ranges indicate that circulating cystatin C levels reflect the variation in GFR throughout life and the marker demonstrates a better correlation with the reference procedure than serum creatinine.

PMID:
10841908
[Indexed for MEDLINE]

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