A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
The influence of sample collection methodology and sample preprocessing on the blood metabolic profile
Tekijät: Jorgenrud B, Jantti S, Mattila I, Poho P, Ronningen KS, Yki-Jarvinen H, Oresic M, Hyotylainen T
Kustantaja: FUTURE SCI LTD
Julkaisuvuosi: 2015
Journal: Bioanalysis
Tietokannassa oleva lehden nimi: BIOANALYSIS
Lehden akronyymi: BIOANALYSIS
Vuosikerta: 7
Numero: 8
Aloitussivu: 991
Lopetussivu: 1006
Sivujen määrä: 16
ISSN: 1757-6180
DOI: https://doi.org/10.4155/bio.15.16
Tiivistelmä
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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