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Lipid Supplements Protect Dilated Cardiomyopathy

ABSTRACT: Lipid (Plasmalogen) levels can be modulated via a dietary supplement called alkylglycerols (AG) which has demonstrated benefits in some disease settings. However, its therapeutic potential in cardiomyopathy remains unknown. This study explored an optimized AG supplement in restoring plasmalogen levels and attenuate cardiac dysfunction/pathology. Here, we placed a cardiac-specific transgenic cardiomyopathy mouse model, with cardiac function and molecular landscape assessed. AG supplementation increased total plasmalogens in DCM hearts and attenuated lung congestion of both sexes, but only prevented cardiac dysfunction in males. This was associated with cardiac and renal enlargement, a more favorable pro-cardiac gene expression profile, and a trend for lower cardiac fibrosis. By lipidomics, specific d18:1 ceramide species associated with cardiac pathology were lower in the DCM hearts from mice on the AG diet, and tetra-linoleoyl cardiolipin, a lipid crucial for mitochondria function was restored with AG supplementation. Proteomic analysis of hearts from male DCM mice receiving AG supplementation revealed enrichment in mitochondrial protein network, as well as upregulation of extracellular matrix binding proteins associated with cardiac regeneration. Here we highlight that AG supplementation restored plasmalogens in DCM hearts, but showed greater therapeutic potential in males than females

INSTRUMENT(S): Q Exactive HF-X

ORGANISM(S): Mus Musculus (ncbitaxon:10090)

SUBMITTER: David Greening

PROVIDER: MSV000095560 | MassIVE | Thu Aug 08 22:02:00 BST 2024

REPOSITORIES: MassIVE

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