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Serum cystatin C me...
Serum cystatin C measured by automated immunoassay : a more sensitive marker of changes in GFR than serum creatinine
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Newman, D J (författare)
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Thakkar, H (författare)
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Edwards, R G (författare)
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Wilkie, M (författare)
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White, T (författare)
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- Grubb, Anders O. (författare)
- Lund University,Lunds universitet,Avdelningen för klinisk kemi och farmakologi,Institutionen för laboratoriemedicin,Medicinska fakulteten,Cystatin C, njursjukdom, amyloidos och antibiotika,Forskargrupper vid Lunds universitet,Division of Clinical Chemistry and Pharmacology,Department of Laboratory Medicine,Faculty of Medicine,Cystatin C, renal disease, amyloidosis and antibiotics,Lund University Research Groups
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Price, C P (författare)
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(creator_code:org_t)
- Elsevier BV, 1995
- 1995
- Engelska.
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Ingår i: Kidney International. - : Elsevier BV. - 0085-2538. ; 47, s. 312-318
- Relaterad länk:
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http://dx.doi.org/10... (free)
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https://doi.org/10.1...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Serum cystatin C has been suggested as a new marker of GFR. For the introduction of this marker into clinical use a rapid and automated method is required. We have developed and validated an assay for serum cystatin C using latex particle-enhanced immunoturbidimetry. Intra- and inter-assay precision were < 3% and < 5% across the assay range. Analytical recovery was 93 +/- 3.8% and no lack of parallelism was demonstrated. Regression analysis of a method comparison with an enzyme-enhanced radial-immunodiffusion method, gave PETIA = 0.074 + 0.93 x SRID, r = 0.98, N = 100. Inter-assay precision profiles showed cystatin C was measured with two-fold better precision than creatinine on the same analyzer. Cystatin C measurement was neither interfered with by icterus nor by hemolysis. 1/cystatin C versus 1/creatinine concentrations gave r = 0.67, N = 469. Comparison of Cr EDTA GFR with 1/cystatin C and 1/creatinine gave r = 0.81 and 0.50, respectively, N = 206. Calculating diagnostic sensitivity for abnormal GFR showed cystatin C to be significantly (P < 0.05) more sensitive than creatinine (71.4 vs. 52.4%). Cystatin C measurement using PETIA technology can be automated on the same instruments used routinely for the measurement of creatinine and offers better analytical performance and probably improved clinical sensitivity as a screening test for early renal damage.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Urologi och njurmedicin (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Urology and Nephrology (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Läkemedelskemi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Medicinal Chemistry (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Farmakologi och toxikologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Pharmacology and Toxicology (hsv//eng)
Nyckelord
- Biomarkers
- Creatinine/blood
- Cystatin C
- Cystatins/blood
- Cysteine Proteinase Inhibitors/blood
- Glomerular Filtration Rate
- Humans
- Immunoassay/methods
- Kidney Diseases/blood
- Latex
- Microspheres
- Nephelometry and Turbidimetry/methods
- Reproducibility of Results
- Sensitivity and Specificity
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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