Journal
BIOMARKERS
Volume 15, Issue 2, Pages 140-148Publisher
TAYLOR & FRANCIS LTD
DOI: 10.3109/13547500903340570
Keywords
Cytokine; freeze-thaw cycle; reproducibility
Categories
Funding
- ECNIS Network of Excellence, European Union [FOOD-CT-2005-513943]
- Iranian Ministry of Health and Medical Education at Utrecht University
Ask authors/readers for more resources
Blood levels of cyto- and chemokines might reflect immune deregulations which might be related to lymphomagenesis. Potential utility of stored blood samples of a prospective cohort was evaluated by the effect of different blood sample types and freeze-thaw cycles on analyte levels. Bead-based immunoassays were performed on two fresh samples (serum, citrate and heparin plasma) of 10 asymptomatic adults collected 14 days apart and on aliquots of the first samples which were put through one to three freeze-thaw cycles to measure 11 cytokines, four chemokines and two adhesion molecules. Median coefficients of variation (CVs) of the measured analytes were 20%, 24% and 32% in serum, citrate and heparin plasma, respectively. Strong correlations (rank correlation coefficient 0.74-0.98) were observed between sample types, although small differences in analyte levels were observed for most analytes. Freeze-thaw cycles did not markedly change analyte levels. Our study supports the use of this assay among asymptomatic subjects in epidemiological studies.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available