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Accession IconGSE100388

Dietary intake of antioxidant curcumin reduces eIF2 phosphorylation and diacylglycerol and glycerolipid contents in white adipose tissue of obese mice

Organism Icon Mus musculus
Sample Icon 15 Downloadable Samples
Technology Badge Icon Affymetrix Mouse Genome 430 2.0 Array (mouse4302)

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To elucidate the bioactive property of the dietary antioxidant curcumin, we examined tissue distribution and the gene expression- and lipidomic-profiles in epididymal white adipose tissue (eWAT) of the diet-induced obese mice. Dietary intake of curcumin (0.1% W/W) didnt affect the eWAT weight and the plasma lipid levels but reduced the levels of lipid peroxidation marker in eWAT. Curcumin was a slightly accumulated in eWAT and altered the gene expression associated with eukaryotic translation initiation factor 2 (EIF2) signaling. Curcumin suppressed the endoplasmic reticulum (ER) stress-related eIF2 phospholyration, the accumulation of macrophages and the expression of oxidative stress-sensitive transcription factor NF-B p65 and leptin, whereas anti-inflammatory effect wasnt enough to reduce the TNF- and IFN- levels. Lipidomic- and gene expression analysis suggests that curcumin reduced the contents of some diacylglyverols (DAGs) and DAG derived glycerophospholipids by suppressing the expressions of lipogenesis-related glycerol-3-phosphate acyltransferase 1 and lipolysis-related adipose triglyceride lipase.
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