Fibrates And Fish Oil, But Not Corn Oil, Up-regulate The Expression Of The Cholesteryl Ester Transfer Protein (cetp) Gene.

dc.creatorRaposo, Helena F
dc.creatorPatrício, Patrícia R
dc.creatorSimões, Mariana C
dc.creatorOliveira, Helena C F
dc.date2014-Jun
dc.date2015-11-27T13:42:23Z
dc.date2015-11-27T13:42:23Z
dc.date.accessioned2018-03-29T01:20:31Z
dc.date.available2018-03-29T01:20:31Z
dc.identifierThe Journal Of Nutritional Biochemistry. v. 25, n. 6, p. 669-74, 2014-Jun.
dc.identifier1873-4847
dc.identifier10.1016/j.jnutbio.2014.02.008
dc.identifierhttp://www.ncbi.nlm.nih.gov/pubmed/24746832
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/201335
dc.identifier24746832
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1301568
dc.descriptionCholesteryl ester transfer protein (CETP) is a plasma protein that reduces high density lipoprotein (HDL)-cholesterol (chol) levels and may increase atherosclerosis risk. n-3 and n-6 polyunsaturated fatty acids (PUFAs) are natural ligands, and fibrates are synthetic ligands for peroxisome proliferator activated receptor-alpha (PPARα), a transcription factor that modulates lipid metabolism. In this study, we investigated the effects of PUFA oils and fibrates on CETP expression. Hypertriglyceridemic CETP transgenic mice were treated with gemfibrozil, fenofibrate, bezafibrate or vehicle (control), and normolipidemic CETP transgenic mice were treated with fenofibrate or with fish oil (FO; n-3 PUFA rich), corn oil (CO, n-6 PUFA rich) or saline. Compared with the control treatment, only fenofibrate significantly diminished triglyceridemia (50%), whereas all fibrates decreased the HDL-chol level. Elevation of the CETP liver mRNA levels and plasma activity was observed in the fenofibrate (53%) and gemfibrozil (75%) groups. Compared with saline, FO reduced the plasma levels of nonesterified fatty acid (26%), total chol (15%) and HDL-chol (20%). Neither of the oil treatments affected the plasma triglyceride levels. Compared with saline, FO increased the plasma adiponectin level and reduced plasma leptin levels, whereas CO increased the leptin levels. FO, but not CO, significantly increased the plasma CETP mass (90%) and activity (23%) as well as increased the liver level of CETP mRNA (28%). In conclusion, fibrates and FO, but not CO, up-regulated CETP expression at both the mRNA and protein levels. We propose that these effects are mediated by the activation of PPARα, which acts on a putative PPAR response element in the CETP gene.
dc.description25
dc.description669-74
dc.languageeng
dc.relationThe Journal Of Nutritional Biochemistry
dc.relationJ. Nutr. Biochem.
dc.rightsfechado
dc.rightsCopyright © 2014 Elsevier Inc. All rights reserved.
dc.sourcePubMed
dc.subjectAnimals
dc.subjectBezafibrate
dc.subjectCholesterol Ester Transfer Proteins
dc.subjectCombined Modality Therapy
dc.subjectCorn Oil
dc.subjectCrosses, Genetic
dc.subjectDietary Supplements
dc.subjectFemale
dc.subjectFenofibrate
dc.subjectFibric Acids
dc.subjectFish Oils
dc.subjectGemfibrozil
dc.subjectHypertriglyceridemia
dc.subjectHypolipidemic Agents
dc.subjectLiver
dc.subjectMale
dc.subjectMice, Transgenic
dc.subjectRna, Messenger
dc.subjectRandom Allocation
dc.subjectUp-regulation
dc.subjectCetp Expression
dc.subjectFibrates
dc.subjectFish Oil
dc.subjectOmega-3 Polyunsaturated Fatty Acids
dc.titleFibrates And Fish Oil, But Not Corn Oil, Up-regulate The Expression Of The Cholesteryl Ester Transfer Protein (cetp) Gene.
dc.typeArtículos de revistas


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