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Maternal undernutrition programmes atherosclerosis in the ApoE*3-Leiden mouse

  • Zoe Yates (a1), Elizabeth J. Tarling (a1), Simon C. Langley-Evans (a1) and Andrew M. Salter (a1)

Abstract

Poor quality of nutrition during fetal development is associated with adverse health outcomes in adult life. Epidemiological studies suggest that markers of fetal undernutrition are predictive of risk of the metabolic syndrome and CHD. Here we show that feeding a low-protein diet during pregnancy programmed the development of atherosclerosis in ApoE*3-Leiden mice. ApoE*3-Leiden mice carry a mutation of human ApoE*3 rendering them prone to atherosclerosis when fed a diet rich in cholesterol. It was noted that fetal exposure to protein restriction led to a greater degree of dyslipidaemia in mice when fed an atherogenic diet, with low-protein-exposed ApoE*3 mice having elevated total plasma cholesterol (34 % higher; P < 0·001) and TAG (39 % higher; P < 0·001) relative to offspring exposed to a control diet in utero. The low-protein group developed more severe atherosclerotic lesions within the aortic arch (2·61-fold greater lesion area; P < 0·001). Analysis of a targeted gene array suggested a potential role for members of the LDL receptor superfamily, along with similar programmed suppression of the mRNA expression of hepatic sterol regulatory element-binding protein-1c. This indicates that disordered lipid metabolism may play a role in the fetal programming of atherosclerosis in this model. Whereas earlier studies have shown early programming of cardiovascular risk factors, these results demonstrate for the first time that the interaction of prenatal undernutrition with a postnatal atherogenic diet increases the extent of atherosclerotic disease.

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Corresponding author

*Corresponding author: Professor Simon C. Langley-Evans, fax +44 115 9516122, email Simon.Langley-Evans@nottingham.ac.uk

References

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Keywords

Maternal undernutrition programmes atherosclerosis in the ApoE*3-Leiden mouse

  • Zoe Yates (a1), Elizabeth J. Tarling (a1), Simon C. Langley-Evans (a1) and Andrew M. Salter (a1)

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