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Published on: May 15, 2019
Fatty acid composition of serum glycerophospholipids in children
Claudia Glaser1, Hans Demmelmair, Stefanie Sausenthaler
1Division of Metabolic and Nutritional Medicine, Dr von Hauner Children's Hospital, University of Munich Medical Center, München, Germany.
Insights
New reference values for serum phospholipid fatty acid composition in children aged 2 and 6 years were established using a high-throughput method. These findings provide crucial data for clinical practice and epidemiological studies.
Area of Science:
- Biochemistry
- Pediatric Nutrition
- Analytical Chemistry
Background:
- Establishing reference values for serum fatty acid (FA) composition in children is essential for accurate health assessments.
- Previous methods for analyzing glycerophospholipid (GP) FA composition were often time-consuming and complex.
Purpose of the Study:
- To determine reliable reference values for serum glycerophospholipid (GP) fatty acid (FA) composition in children.
- To validate a new high-throughput method for FA analysis in pediatric serum samples.
Main Methods:
- Analyzed 1326 serum samples from 951 children (aged 2 and 6 years) from the German LISA study.
- Employed a novel high-throughput method involving simple preparation of fatty acid methyl esters from serum GPs.
- Utilized high-resolution capillary gas chromatography for precise FA quantification.
Main Results:
- Serum GP FA values showed excellent agreement with previously published data for phospholipids.
- No significant age- or sex-related differences were observed in the GP FA composition of children.
- The new method demonstrated efficiency and accuracy in determining FA status.
Conclusions:
- The established serum GP FA values serve as valuable reference data for children aged 2 and 6 years.
- These reference values can aid in clinical practice, including therapeutic intervention monitoring and improvement.
- The data provide a benchmark for interpreting FA levels in clinical and epidemiological research involving children.
Objective:
To determine reference values for fatty acid (FA) composition of serum glycerophospholipids (GPs) in children with a new high-throughput method.
Study Design:
The GP FA composition of 1326 serum samples obtained from a cohort of 951 children at 2 and 6 years, participating in the German Influences of Lifestyle Related Factors on the Immune System and the Development of Allergies in Childhood (LISA) study, was analyzed with a new high-throughput method. Only 2 simple preparation steps were necessary to obtain fatty acid methyl esters selectively from serum GPs. The FA status was determined by separating and quantifying the fatty acid methyl esters with high-resolution capillary gas chromatography.
Results:
FA values in serum GPs were in very good agreement with other published values in serum or plasma phospholipids for most of the analyzed FAs. No major age and sex differences in GP FA composition were observed.
Conclusion:
The serum GP FA values obtained from children aged 2 and 6 years may serve as reference values in clinical practice (eg, for monitoring and improving therapeutic interventions). Furthermore, they can serve as a reference point for interpreting FA values in clinical and epidemiological studies.
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