Preanalytical biases in the measurement of human blood sphingolipids

  • Dysregulation of blood sphingolipids is an emerging topic in clinical science. The objective of this study was to determine preanalytical biases that typically occur in clinical and translational studies and that influence measured blood sphingolipid levels. Therefore, we collected blood samples from four healthy male volunteers to investigate the effect of storage conditions (time, temperature, long-term storage, freeze–thaw cycles), blood drawing (venous or arterial sampling, prolonged venous compression), and sample preparation (centrifugation, freezing) on sphingolipid levels measured by LC-MS/MS. Our data show that sphingosine 1-phosphate (S1P) and sphinganine 1-phosphate (SA1P) were upregulated in whole blood samples in a time- and temperature-dependent manner. Increased centrifugation at higher speeds led to lower amounts of S1P and SA1P. All other preanalytical biases did not significantly alter the amounts of S1P and SA1P. Further, in almost all settings, we did not detect differences in (dihydro)ceramide levels. In summary, besides time-, temperature-, and centrifugation-dependent changes in S1P and SA1P levels, sphingolipids in blood remained stable under practically relevant preanalytical conditions.

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Author:Robert BrunkhorstGND, Waltraud PfeilschifterORCiDGND, Sammy Patyna, Stefan BüttnerORCiD, Timon Eckes, Sandra Trautmann, Dominique Jeanette ThomasORCiDGND, Josef Martin PfeilschifterGND, Alexander Koch
URN:urn:nbn:de:hebis:30:3-472150
DOI:https://doi.org/10.3390/ijms19051390
ISSN:1422-0067
ISSN:1661-6596
Pubmed Id:https://pubmed.ncbi.nlm.nih.gov/29735920
Parent Title (English):International journal of molecular sciences
Publisher:Molecular Diversity Preservation International
Place of publication:Basel
Document Type:Article
Language:English
Year of Completion:2018
Date of first Publication:2018/05/07
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2018/08/14
Tag:blood; ceramides; dihydroceramides; sphinganine 1-phosphate; sphingolipids; sphingosine 1-phosphate
Volume:19
Issue:5, Art. 1390
Page Number:15
First Page:1
Last Page:15
Note:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
HeBIS-PPN:450781100
Institutes:Medizin / Medizin
Dewey Decimal Classification:6 Technik, Medizin, angewandte Wissenschaften / 61 Medizin und Gesundheit / 610 Medizin und Gesundheit
Sammlungen:Universitätspublikationen
Open-Access-Publikationsfonds:Medizin
Licence (German):License LogoCreative Commons - Namensnennung 4.0