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Nutrients 2018, 10(1), 106; https://doi.org/10.3390/nu10010106

Dietary Fatty Acids Alter Lipid Profiles and Induce Myocardial Dysfunction without Causing Metabolic Disorders in Mice

1,2,3
,
1,3,* , 1,2,3,4
,
2,3,4
and
5
1
Institutes of Biology and Medical Sciences, Soochow University, Suzhou 215000, China
2
Lawson Health Research Institute, London Health Sciences Centre, London, ON N6A 4G5, Canada
3
Department of Medicine, University of Western Ontario, London, ON N6A 5A5, Canada
4
Department of Pathology, University of Western Ontario, London, ON N6A 5C1, Canada
5
Department of Biology, University of Western Ontario, London, ON N6A 2B7, Canada
*
Author to whom correspondence should be addressed.
Received: 23 November 2017 / Revised: 8 January 2018 / Accepted: 11 January 2018 / Published: 19 January 2018
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Abstract

Oversupply of bulk saturated fatty acids (SFA) induces metabolic disorders and myocardial dysfunction. We investigated whether, without causing metabolic disorders, the uptake of individual dietary SFA species alters lipid profiles and induces myocardial dysfunction. C57BL/6 mice were fed various customized long-chain SFA diets (40% caloric intake from SFA), including a beef tallow (HBD), cocoa butter (HCD), milk fat (HMD) and palm oil diet (HPD), for 6 months. An isocaloric fat diet, containing medium-chain triglycerides, served as a control (CHD). Long-term intake of dietary long-chain SFA differentially affected the fatty acid composition in cardiac phospholipids. All long-chain SFA diets increased the levels of arachidonic acid and total SFA in cardiac phospholipids. The preferential incorporation of individual SFA into the cardiac phospholipid fraction was dependent on the dietary SFA species. Cardiac ceramide content was elevated in all mice fed long-chain SFA diets, while cardiac hypertrophy was only presented in mice fed HMD or HPD. We have demonstrated that the intake of long-chain SFA species differentially alters cardiac lipid profiles and induces cardiac dysfunction, without causing remarkable metabolic disorders. View Full-Text
Keywords: diet; lipid profiles; myocardial dysfunction; saturated fatty acids diet; lipid profiles; myocardial dysfunction; saturated fatty acids
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Chen, B.; Huang, Y.; Zheng, D.; Ni, R.; Bernards, M.A. Dietary Fatty Acids Alter Lipid Profiles and Induce Myocardial Dysfunction without Causing Metabolic Disorders in Mice. Nutrients 2018, 10, 106.

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