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The Use of Gas Chromatography to Analyze Compositional Changes of Fatty Acids in Rat Liver Tissue during Pregnancy
Published on: March 13, 2014
Maternal polyunsaturated fatty acid concentrations during pregnancy and childhood liver fat accumulation
Rama J Wahab1, Vincent W V Jaddoe1, Angelo G Mezzoiuso2
1The Generation R Study Group, Erasmus MC, University Medical Center, Rotterdam, the Netherlands; Department of Pediatrics, Sophia Children's Hospital, Erasmus MC, University Medical Center, Rotterdam, the Netherlands.
Insights
Maternal intake of polyunsaturated fatty acids (PUFA) during pregnancy impacts childhood liver fat. Higher n-3 PUFA and lower n-6 PUFA in mothers are linked to reduced liver fat accumulation in offspring.
Area of Science:
- Reproductive Health
- Pediatric Nutrition
- Metabolic Health
Background:
- Maternal polyunsaturated fatty acids (PUFA) are crucial for fetal development.
- The impact of maternal PUFA levels on offspring liver fat is not well understood.
- This study investigates the link between maternal PUFA status and childhood liver fat.
Purpose of the Study:
- To examine the association between maternal n-3 and n-6 PUFA concentrations during pregnancy and liver fat accumulation in children.
- To identify specific PUFA types that may influence offspring liver health.
- To explore potential preventative strategies for childhood liver fat accumulation.
Main Methods:
- A population-based prospective cohort study of 2424 mother-child pairs.
- Maternal plasma PUFA concentrations measured during mid-pregnancy.
- Childhood liver fat fraction assessed by MRI at age 10.
Main Results:
- Higher maternal n-3 PUFA (especially DHA) was associated with lower childhood liver fat fraction.
- Higher maternal dihomo-gamma-linolenic acid (a n-6 PUFA) was linked to increased childhood liver fat.
- Associations were stronger in boys, with higher maternal n-3 PUFA reducing non-alcoholic fatty liver disease risk.
Conclusions:
- Maternal n-3 PUFA deficiency and n-6 PUFA excess during pregnancy are associated with offspring liver fat accumulation.
- Optimizing maternal PUFA status may be a key strategy for preventing childhood liver fat issues.
- Targeting maternal nutrition offers a potential avenue for improving pediatric metabolic health.
Background & Aims:
Maternal polyunsaturated fatty acids (PUFA) concentrations in pregnancy are essential for fetal lipid metabolism and adipocyte differentiation. Whether suboptimal maternal gestational PUFA concentrations adversely affect offspring liver fat development is unknown. We aimed to examine the associations of maternal n-3 and n-6 PUFA concentrations in pregnancy with childhood liver fat accumulation.
Methods:
In a population-based prospective cohort study among 2424 mother-child pairs, we measured maternal total and individual n-3 and n-6 PUFA plasma concentrations at mean gestational age of 20.6 ± 1.1 weeks. Childhood liver fat fraction was obtained by MRI at 10 years. Non-alcoholic fatty liver disease was a liver fat fraction ≥5.0%.
Results:
We observed that 1-Standard deviation (SD) higher maternal n-3 PUFA concentrations, especially DHA, was associated with a lower childhood liver fat fraction [-0.07 SD-score (95% CI -0.11 to -0.02, p-value = 0.001) for both total n-3 PUFA and DHA concentrations]. Of n-6 PUFAs, 1-SD higher maternal dihomo-gamma-linolenic acid concentrations was associated with a higher childhood liver fat fraction [0.06 SD-score (95% CI 0.02-0.10, p-value = 0.004)]. Associations were not explained by maternal or childhood socio-demographic and lifestyle characteristics. Associations were stronger among boys and less consistent among girls. Among boys, higher maternal total n-3 PUFA concentrations were associated with a lower risk of childhood non-alcohol fatty liver disease [odds ratio 0.42 (95% CI 0.25-0.70, p-value = 0.001)].
Conclusions:
Maternal lower n-3 PUFA and higher n-6 PUFA concentrations in pregnancy are associated with offspring liver fat accumulation in childhood. Optimizing maternal PUFA concentrations during pregnancy may be a target for preventing liver fat accumulation in their offspring.
