A1 Refereed original research article in a scientific journal
The influence of sample collection methodology and sample preprocessing on the blood metabolic profile
Authors: Jorgenrud B, Jantti S, Mattila I, Poho P, Ronningen KS, Yki-Jarvinen H, Oresic M, Hyotylainen T
Publisher: FUTURE SCI LTD
Publication year: 2015
Journal: Bioanalysis
Journal name in source: BIOANALYSIS
Journal acronym: BIOANALYSIS
Volume: 7
Issue: 8
First page : 991
Last page: 1006
Number of pages: 16
ISSN: 1757-6180
DOI: https://doi.org/10.4155/bio.15.16
Abstract
Aim: Blood serum and plasma have intrinsic differences in their composition and the preprocessing, such as clotting temperature in serum, and storage at room temperature may have further effect on metabolite concentrations. Methods: The influence of sampling preprocessing on the metabolic profiles in serum and different types of plasma was investigated using liquid chromatography and comprehensive 2D gas chromatography coupled to a mass spectrometer. Results: The profiles of polar metabolites were significantly dependent on the type of the sample, while lipid profiles were similar in serum and different types of plasma. Extended storage of plasma at room temperature resulted in degradation of lipids already after 1 day. Serum clotting at room temperature generally resulted in higher metabolite concentration compared with serum clotting on ice.
Aim: Blood serum and plasma have intrinsic differences in their composition and the preprocessing, such as clotting temperature in serum, and storage at room temperature may have further effect on metabolite concentrations. Methods: The influence of sampling preprocessing on the metabolic profiles in serum and different types of plasma was investigated using liquid chromatography and comprehensive 2D gas chromatography coupled to a mass spectrometer. Results: The profiles of polar metabolites were significantly dependent on the type of the sample, while lipid profiles were similar in serum and different types of plasma. Extended storage of plasma at room temperature resulted in degradation of lipids already after 1 day. Serum clotting at room temperature generally resulted in higher metabolite concentration compared with serum clotting on ice.
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