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IL8 and IL16 levels indicate serum and plasma quality

IL8 and IL16 levels indicate serum and plasma quality AbstractBackground:Longer pre-centrifugation times alter the quality of serum and plasma samples. Markers for such delays in sample processing and hence for the sample quality, have been identified.Methods:Twenty cytokines in serum, EDTA plasma and citrate plasma samples were screened for changes in concentration induced by extended blood pre-centrifugation delays at room temperature. The two cytokines that showed the largest changes were further validated for their “diagnostic performance” in identifying serum or plasma samples with extended pre-centrifugation times.Results:In this study, using R&D Systems ELISA kits, EDTA plasma samples and serum samples with a pre-centrifugation delay longer than 24 h had an IL16 concentration higher than 313 pg/mL, and an IL8 concentration higher than 125 pg/mL, respectively. EDTA plasma samples with a pre-centrifugation delay longer than 48 h had an IL16 concentration higher than 897 pg/mL, citrate plasma samples had an IL8 concentration higher than 21.5 pg/mL and serum samples had an IL8 concentration higher than 528 pg/mL.Conclusions:These robust and accurate tools, based on simple and commercially available ELISA assays can greatly facilitate qualification of serum and plasma legacy collections with undocumented pre-analytics. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Clinical Chemistry and Laboratory Medicine (CCLM) de Gruyter

IL8 and IL16 levels indicate serum and plasma quality

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Publisher
de Gruyter
Copyright
©2018 Fay Betsou et al., published by De Gruyter, Berlin/Boston
ISSN
1437-4331
eISSN
1437-4331
DOI
10.1515/cclm-2017-1047
Publisher site
See Article on Publisher Site

Abstract

AbstractBackground:Longer pre-centrifugation times alter the quality of serum and plasma samples. Markers for such delays in sample processing and hence for the sample quality, have been identified.Methods:Twenty cytokines in serum, EDTA plasma and citrate plasma samples were screened for changes in concentration induced by extended blood pre-centrifugation delays at room temperature. The two cytokines that showed the largest changes were further validated for their “diagnostic performance” in identifying serum or plasma samples with extended pre-centrifugation times.Results:In this study, using R&D Systems ELISA kits, EDTA plasma samples and serum samples with a pre-centrifugation delay longer than 24 h had an IL16 concentration higher than 313 pg/mL, and an IL8 concentration higher than 125 pg/mL, respectively. EDTA plasma samples with a pre-centrifugation delay longer than 48 h had an IL16 concentration higher than 897 pg/mL, citrate plasma samples had an IL8 concentration higher than 21.5 pg/mL and serum samples had an IL8 concentration higher than 528 pg/mL.Conclusions:These robust and accurate tools, based on simple and commercially available ELISA assays can greatly facilitate qualification of serum and plasma legacy collections with undocumented pre-analytics.

Journal

Clinical Chemistry and Laboratory Medicine (CCLM) – de Gruyter

Published: Jun 27, 2018

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  • Elevated plasma levels of interleukin-12p40 and interleukin-16 in overweight adolescents
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  • Pre-analytical operating procedures for serum low molecular weight protein profiling
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  • Plasma interleukin 8 and polymorphonuclear leukocyte elastase concentrations in patients with septic shock
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  • Standard preanalytical coding for biospecimens: defining the sample PREanalytical code
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