Assessment of the Trueness and Inter-Laboratory Precision of Routine Uric Acid Assays Using 4 Frozen Pooled Serum Samples Measured by the Japan Society of Clinical Chemistry's HPLC Method

Jiang, Yaping; Ou, Liu; Xu, Guobing

doi:10.3343/alm.2014.34.2.104

Cited by 3 publications

(3 citation statements)

References 17 publications

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“…A variation of UA determination can be seen. The differences of measured UA levels due to different laboratory technicians as well as different laboratories are well documented in the literature (2,3). In the present report, the inter-personal and inter-laboratory variations can be expected.…”

Section: Dear Editorsupporting

confidence: 63%

Serum Uric Acid Level, Alzheimer-type Dementia and Variation

Joob¹,

Wiwanitkit²

2020

tnd

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Section: Dear Editorsupporting

confidence: 63%

Serum Uric Acid Level, Alzheimer-type Dementia and Variation

Joob¹,

Wiwanitkit²

2020

tnd

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“…The ARIC, CARDIA, and NHANES III studies used a standard uricase oxidation assay to measure serum urate levels. 37 38 39 40 The CHS study used a Kodak Ektachem 700 analyser and reagents to measure serum urate levels. 41 The FHS study used a phosphotungstic acid reagent autoanalyser to measure serum urate levels.…”

Section: Methodsmentioning

confidence: 99%

Evaluation of the diet wide contribution to serum urate levels: meta-analysis of population based cohorts

Major

Topless

Dalbeth

et al. 2018

BMJ

165

158

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ObjectiveTo systematically test dietary components for association with serum urate levels and to evaluate the relative contributions of estimates of diet pattern and inherited genetic variants to population variance in serum urate levels.DesignMeta-analysis of cross sectional data from the United States.Data sourcesFive cohort studies.Review methods16 760 individuals of European ancestry (8414 men and 8346 women) from the US were included in analyses. Eligible individuals were aged over 18, without kidney disease or gout, and not taking urate lowering or diuretic drugs. All participants had serum urate measurements, dietary survey data, information on potential confounders (sex, age, body mass index, average daily calorie intake, years of education, exercise levels, smoking status, and menopausal status), and genome wide genotypes. The main outcome measures were average serum urate levels and variance in serum urate levels. β values (95% confidence intervals) and Bonferroni corrected P values from multivariable linear regression analyses, along with regression partial R2 values, were used to quantitate associations.ResultsSeven foods were associated with raised serum urate levels (beer, liquor, wine, potato, poultry, soft drinks, and meat (beef, pork, or lamb)) and eight foods were associated with reduced serum urate levels (eggs, peanuts, cold cereal, skim milk, cheese, brown bread, margarine, and non-citrus fruits) in the male, female, or full cohorts. Three diet scores, constructed on the basis of healthy diet guidelines, were inversely associated with serum urate levels and a fourth, data driven diet pattern positively associated with raised serum urate levels, but each explained ≤0.3% of variance in serum urate. In comparison, 23.9% of variance in serum urate levels was explained by common, genome wide single nucleotide variation.ConclusionIn contrast with genetic contributions, diet explains very little variation in serum urate levels in the general population.

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“…4,22,23 In addition, for glucose, uric acid, and enzymes, they performed more accurately. 5,21,24,25 Especially for enzymes, the measured values for CK, LDH, and amylase were significantly different from the target values for the Abbott system according to Jansen et al 5 who assessed traceability for those enzymes on various platforms. Based on our results, the measurement accuracy of the Abbott enzyme assays has greatly improved.…”

Section: Commentmentioning

confidence: 99%

Traceability Assessment and Performance Evaluation of Results for Measurement of Abbott Clinical Chemistry Assays on 4 Chemistry Analyzers

Lim¹,

Song²,

Song³

et al. 2016

Archives of Pathology &Amp; Laboratory Medicine

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Context.-The traceability of clinical results to internationally recognized and accepted reference materials and reference measurement procedures has become increasingly important. Therefore, the establishment of traceability has become a mandatory requirement for all in vitro diagnostics devices.Objectives.-To evaluate the traceability of the Abbott Architect c8000 system (Abbott Laboratories, Abbott Park, Illinois), consisting of calibrators and reagents, across 4 different chemistry analyzers, and to evaluate its general performance on the Toshiba 2000FR NEO (Toshiba Medical Systems Corporation, Otawara-shi, Tochigi-ken, Japan).Design.-For assessment of traceability, secondary reference materials were evaluated 5 times, and then bias was calculated. Precision, linearity, and carryover were determined according to the guidelines of the Clinical and Laboratory Standards Institute (Wayne, Pennsylvania).Results.-The biases from 4 different analyzers ranged from À2.33% to 2.70% on the Toshiba 2000FR NEO, À2.33% to 5.12% on the Roche Hitachi 7600 (Roche Diagnostics International, Basel, Switzerland), À0.93% to 2.87% on the Roche Modular, and À2.16% to 2.86% on the Abbott Architect c16000. The total coefficients of variance of all analytes were less than 5%. The coefficients of determination (R 2 ) were more than 0.9900. The carryover rate ranged from À0.54% to 0.17%.Conclusions.-Abbott clinical chemistry assays met the performance criteria based on desirable biological variation for precision, bias, and total error. They also showed excellent linearity and carryover. Therefore, these clinical chemistry assays were found to be accurate and reliable and are readily applicable on the various platforms used in this study.

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Assessment of the Trueness and Inter-Laboratory Precision of Routine Uric Acid Assays Using 4 Frozen Pooled Serum Samples Measured by the Japan Society of Clinical Chemistry's HPLC Method

Cited by 3 publications

References 17 publications

Serum Uric Acid Level, Alzheimer-type Dementia and Variation

Serum Uric Acid Level, Alzheimer-type Dementia and Variation

Evaluation of the diet wide contribution to serum urate levels: meta-analysis of population based cohorts

Traceability Assessment and Performance Evaluation of Results for Measurement of Abbott Clinical Chemistry Assays on 4 Chemistry Analyzers

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