Higher Oily Fish Consumption in Late Pregnancy Is Associated With Reduced Aortic Stiffness in the Child at Age 9 Years. Issue 7 (27th March 2015) - Bryant, Jennifer
Abstract Rationale: Higher pulse wave velocity (PWV) reflects increased arterial stiffness and is an established cardiovascular risk marker associated with lower long-chain n-3 polyunsaturated fatty acid intake in adults. Experimentally, maternal fatty acid intake in pregnancy has lasting effects on offspring arterial stiffness. Objective: To examine the association between maternal consumption of oily fish, a source of long-chain n-3 polyunsaturated fatty acids, in pregnancy and child's aortic stiffness age 9 years. Methods and Results: In a mother–offspring study (Southampton Women's Survey), the child's descending aorta PWV was measured at the age of 9 years using velocity-encoded phase-contrast MRI and related to maternal oily fish consumption assessed prospectively during pregnancy. Higher oily fish consumption in late pregnancy was associated with lower childhood aortic PWV (sex-adjusted β=−0.084 m/s per portion per week; 95% confidence interval, −0.137 to −0.031; P=0.002; n=226). Mother's educational attainment was independently associated with child's PWV. PWV was not associated with the child's current oily fish consumption. Conclusions: Level of maternal oily fish consumption in pregnancy may influence child's large artery development, with potential long-term consequences for later cardiovascular risk.