Inflammatory protein biomarkers

Analytical Biochemistry

Abstract

In this study, levels of inflammatory protein biomarkers in venous plasma, plasma derived from capillary blood from the earlobe, and capillary plasma stored as dried plasma spots (DPS) were compared. Samples from 12 male individuals were assessed with a panel of 92 inflammation-related proteins using multiplex proximity extension assay. Correlations between sample types varied greatly between analytes. A high correlation of ρ > 0.8 was observed between capillary plasma and DPS for 32 analytes. At this level of correlation, 13 analytes correlated between venous and capillary plasma and 5 analytes in the comparison of venous blood with DPS.

Siart, B., de Oliveira, F. M. S., Shen, Q., Björkesten, J., Pekar, T., Steinborn, R., Nimmerichter, A., Kamali-Moghaddam, M., & Wallner, B. (2019). Protein measurements in venous plasma, earlobe capillary plasma and in plasma stored on filter paper. Analytical Biochemistry, 566, 146-150. doi:https://doi.org/10.1016/j.ab.2018.11.016

 

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