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Published in: European Journal of Nutrition 2/2021

Open Access 01-03-2021 | Enterostomy | Original Contribution

Fatty acid composition of adipose tissue at term indicates deficiency of arachidonic and docosahexaenoic acid and excessive linoleic acid supply in preterm infants

Authors: K. A. Böckmann, A. von Stumpff, W. Bernhard, A. Shunova, M. Minarski, B. Frische, S. Warmann, E. Schleicher, C. F. Poets, A. R. Franz

Published in: European Journal of Nutrition | Issue 2/2021

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Abstract

Background

Arachidonic (ARA) and docosahexaenoic acid (DHA) are constitutive to membrane phospholipids, and essential for brain and overall development. ARA/DHA pools in term infants (TI) are built during the third trimester, stored as adipose tissue triglycerides and predominantly distributed via plasma phosphatidylcholine (PC). In preterm infants (PTI), placental ARA/DHA supply is replaced by linoleic-acid (LA)-enriched nutrition. This study aimed to investigate the impact of PTI nutrition, compared to placental supply, on fatty acid composition in adipose tissue and blood.

Methods

Prospective observational study (4/2017–3/2019) in 12 PTI and 3 PTI with enterostomy (PTI/E) (gestational age (GA) < 32 weeks) with surgical intervention at term (± 6 weeks) and 14 TI (GA ≥ 34 weeks, surgical intervention < 2 weeks postnatally). PTI/E were analyzed descriptively only. PC and triglyceride fatty acids were analyzed with tandem mass spectrometry and gas chromatography, respectively. Results were compared between TI and PTI with Wilcoxon Test and shown as median [25th percentile–75th percentile] mol%.

Results

PTI had less ARA in adipose tissue TG (0.77[0.67–0.87]% vs. 1.04[0.95–1.14]%, p = 0.0003) and plasma PC (20.7[18.7–22.8]% vs. 28.3[22.7–33.5]%, p = 0.011) than TI. PTI also had less DHA in adipose tissue TG (0.6[0.4–0.8]% vs. 1.1[0.8–1.4]%, p = 0.006) and plasma PC (6.4[5.6–7.1]% vs. 8.4[7.8–13.1]%, p = 0.002). LA was increased in PTI’s adipose tissue TG (10.0[8.8–12.3]% vs. 3.0[2.5–3.6]%, p < 0.0001) and plasma PC (48.4[44.6–49.6]% vs. 30.6[24.9–35.6]%, p = 0.0002). Similar differences were observed in erythrocyte PC.

Conclusion

In PTI, LA is increased and ARA/DHA decreased in adipose tissue, plasma and erythrocyte lipids as proxies for other tissues, likely caused by PTI nutrition. This may contribute to impaired PTI development.
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Metadata
Title
Fatty acid composition of adipose tissue at term indicates deficiency of arachidonic and docosahexaenoic acid and excessive linoleic acid supply in preterm infants
Authors
K. A. Böckmann
A. von Stumpff
W. Bernhard
A. Shunova
M. Minarski
B. Frische
S. Warmann
E. Schleicher
C. F. Poets
A. R. Franz
Publication date
01-03-2021
Publisher
Springer Berlin Heidelberg
Published in
European Journal of Nutrition / Issue 2/2021
Print ISSN: 1436-6207
Electronic ISSN: 1436-6215
DOI
https://doi.org/10.1007/s00394-020-02293-2

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