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Record W2124676866 · doi:10.1194/jlr.m500051-jlr200

Lack of stimulation of cholesteryl ester transfer protein by cholesterol in the presence of a high-fat diet

2005· article· en· W2124676866 on OpenAlexafffund
Sukhinder Kaur Cheema, Alka Agarwal-Mawal, Cathy Murray, Stephanie C. Tucker

Bibliographic record

VenueJournal of Lipid Research · 2005
Typearticle
Languageen
FieldMedicine
TopicCholesterol and Lipid Metabolism
Canadian institutionsMemorial University of Newfoundland
FundersCanadian Institutes of Health Research
KeywordsCholesterylester transfer proteinReverse cholesterol transportCholesterolLiver X receptorEndocrinologyInternal medicineChemistryStimulationCholesteryl esterBiologyBiochemistryTranscription factorLipoproteinGeneNuclear receptorMedicine

Abstract

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Cholesteryl ester transfer protein (CETP) is a key protein involved in the reverse cholesterol transport pathway. The regulation of CETP by dietary fats is not clearly understood. Transgenic mice expressing human CETP under the control of its natural flanking region were fed low- or high-fat diets enriched in monounsaturated fatty acids (MUFAs) or saturated fatty acids in the presence or absence of cholesterol. Addition of cholesterol to the low-fat MUFA diet increased CETP activity and mRNA expression, whereas addition of cholesterol to the high-fat MUFA diet led to a decrease in CETP activity and mRNA expression. In SW 872 cells, oleic acid and cholesterol stimulated CETP gene expression when given alone. However, addition of fatty acids along with cholesterol interfered with the stimulatory effect of cholesterol on CETP gene regulation. Cholesterol-mediated stimulation of CETP involves the transcription factor liver X receptor α (LXRα). High-fat MUFA diets inhibited the expression of LXRα, and addition of cholesterol to the high-fat MUFA diet did not rescue LXRα expression.Therefore, we present evidence for the first time that inhibition of LXRα expression by a high-fat MUFA diet leads to inhibition of CETP stimulation by cholesterol. Cholesteryl ester transfer protein (CETP) is a key protein involved in the reverse cholesterol transport pathway. The regulation of CETP by dietary fats is not clearly understood. Transgenic mice expressing human CETP under the control of its natural flanking region were fed low- or high-fat diets enriched in monounsaturated fatty acids (MUFAs) or saturated fatty acids in the presence or absence of cholesterol. Addition of cholesterol to the low-fat MUFA diet increased CETP activity and mRNA expression, whereas addition of cholesterol to the high-fat MUFA diet led to a decrease in CETP activity and mRNA expression. In SW 872 cells, oleic acid and cholesterol stimulated CETP gene expression when given alone. However, addition of fatty acids along with cholesterol interfered with the stimulatory effect of cholesterol on CETP gene regulation. Cholesterol-mediated stimulation of CETP involves the transcription factor liver X receptor α (LXRα). High-fat MUFA diets inhibited the expression of LXRα, and addition of cholesterol to the high-fat MUFA diet did not rescue LXRα expression. Therefore, we present evidence for the first time that inhibition of LXRα expression by a high-fat MUFA diet leads to inhibition of CETP stimulation by cholesterol. Cholesteryl ester transfer protein (CETP) is considered a key component in regulating cholesterol homeostasis as it transfers cholesteryl esters from HDL to apolipoprotein B-containing lipoproteins (1Bruce C. Chouinard Jr., R.A. Tall A.R. Plasma lipid transfer proteins, high density lipoproteins, and reverse cholesterol transport.Annu. Rev. Nutr. 1998; 18: 297-330Crossref PubMed Scopus (229) Google Scholar, 2Fielding C.J. Fielding P.E. Molecular physiology of reverse cholesterol transport.J. Lipid Res. 1995; 36: 211-228Abstract Full PubMed Google Scholar, of cholesteryl ester transfer protein to HDL cholesterol. in and PubMed Scopus Google Scholar, Tall A.R. Cholesteryl ester transfer protein and high density to cholesterol in to apolipoprotein Lipid Res. Full PubMed Google CETP in HDL and high or of CETP on the in of Res. PubMed Scopus Google Scholar, C. cholesteryl ester transfer protein and in Lipid Res. Full Full PubMed Scopus Google HDL a in reverse cholesterol a that involves the of cholesterol from to the liver for from the in and in with in CETP that absence of CETP is with the of cholesterol from of cholesterol and of cholesteryl ester transfer to apolipoprotein B-containing lipoproteins (1Bruce C. Chouinard Jr., R.A. Tall A.R. Plasma lipid transfer proteins, high density lipoproteins, and reverse cholesterol transport.Annu. Rev. Nutr. 1998; 18: 297-330Crossref PubMed Scopus (229) Google cholesterol to the a high CETP activity as it cholesterol from the the CETP that cholesteryl and the of HDL CETP is considered (1Bruce C. Chouinard Jr., R.A. Tall A.R. Plasma lipid transfer proteins, high density lipoproteins, and reverse cholesterol transport.Annu. Rev. Nutr. 1998; 18: 297-330Crossref PubMed Scopus (229) Google Scholar, 2Fielding C.J. Fielding P.E. Molecular physiology of reverse cholesterol transport.J. Lipid Res. 1995; 36: 211-228Abstract Full PubMed Google Scholar, of cholesteryl ester transfer protein to HDL cholesterol. in and PubMed Scopus Google Scholar, Tall A.R. Cholesteryl ester transfer protein and high density to cholesterol in to apolipoprotein Lipid Res. Full PubMed Google In CETP is with high HDL and a of C. of lipid transfer protein in a with increased PubMed Scopus Google Scholar, cholesteryl ester transfer protein by as a of increased of high density PubMed Scopus Google The absence of in of the first for the that CETP is C. of lipid transfer protein in a with increased PubMed Scopus Google Transgenic mice expressing human Tall A.R. high density cholesterol in human cholesteryl ester transfer protein Full PubMed Google or in mice expressing cholesteryl ester transfer PubMed Scopus Google CETP a in HDL that high of CETP protein increased of Plasma CETP activity in to diets in Tall A.R. and of lipid transfer protein Full PubMed Google lipid transfer in PubMed Google Scholar, Tall A.R. Plasma of cholesteryl ester transfer protein in the of dietary PubMed Scopus Google Tall Plasma lipid transfer protein as a of the of PubMed Scopus Google Scholar, dietary acid with acid HDL and CETP activity in Nutr. Google Scholar, of dietary fatty acid on the CETP activity and lipoproteins in Lipid Res. Full Full PubMed Google and Tall A.R. Cholesteryl ester transfer protein and high density to cholesterol in to apolipoprotein Lipid Res. Full PubMed Google and in mice expressing human CETP Tall cholesterol transcription of the human cholesteryl ester transfer protein gene in on natural flanking PubMed Google Scholar, C. The of dietary fats in cholesteryl ester transfer protein Nutr. PubMed Google The in CETP activity in to diet is with in mRNA Tall A.R. diet cholesteryl ester transfer protein in PubMed Scopus Google in CETP mice for the in CETP activity Tall cholesterol transcription of the human cholesteryl ester transfer protein gene in on natural flanking PubMed Google dietary cholesterol is to the factor to in CETP diets that to increased the addition of in a in CETP activity on cholesterol and by dietary oleic acid and acid in 1995; PubMed Scopus Google to the effect of dietary fats on CETP regulation of dietary fatty acid on the CETP activity and lipoproteins in Lipid Res. Full Full PubMed Google Scholar, C. The of dietary fats in cholesteryl ester transfer protein Nutr. PubMed Google Scholar, on cholesterol and by dietary oleic acid and acid in 1995; PubMed Scopus Google Scholar, in the activity of lipid transfer protein in human Full PubMed Scopus Google Scholar, of by dietary acid and oleic acid in 1995; Full PubMed Scopus Google Scholar, C. and fatty acid diets decrease cholesterol ester transfer protein in Nutr. PubMed Scopus Google Scholar, of dietary with is with HDL cholesterol and cholesterol ester transfer protein in fed Nutr. PubMed Scopus Google saturated fatty acids to the with fatty acids that monounsaturated fatty acids (MUFAs) decrease on cholesterol and by dietary oleic acid and acid in 1995; PubMed Scopus Google Scholar, in the activity of lipid transfer protein in human Full PubMed Scopus Google Scholar, C. and fatty acid diets decrease cholesterol ester transfer protein in Nutr. PubMed Scopus Google effect C. The of dietary fats in cholesteryl ester transfer protein Nutr. PubMed Google or dietary acid with acid HDL and CETP activity in Nutr. Google Scholar, of dietary with is with HDL cholesterol and cholesterol ester transfer protein in fed Nutr. PubMed Scopus Google CETP to in the of the in the of and the presence or absence of cholesterol in the diet that dietary fats the regulation of cholesterol by dietary cholesterol fats the of dietary cholesterol on cholesterol gene Lipid Res. Full PubMed Google The regulation of is to that of CETP in that by dietary cholesterol Tall cholesterol transcription of the human cholesteryl ester transfer protein gene in on natural flanking PubMed Google Scholar, and regulation of cholesterol the in acid Full PubMed Google Cholesterol-mediated involves the of liver X receptor X receptor to the region of of the receptor by a Full Full PubMed Scopus Google and CETP Tall A.R. of human CETP expression in and in mice by PubMed Scopus Google of the gene involves receptor α and the is the The and human cholesterol gene to regulation by fatty acids receptor Full Full PubMed Scopus Google the the regulation of CETP by dietary fats is not is not fatty acids with the of In we the regulation of CETP in mice expressing the human CETP gene under the control of its natural flanking region by the and of dietary fats in the absence or presence of dietary cholesterol. the and of dietary fats the expression of LXRα, in the of cholesterol on CETP expression. that a high-fat diet enriched in inhibited LXRα expression and that addition of cholesterol to diet did not rescue the expression of that cholesterol to a high-fat diet enriched in CETP gene expression. Therefore, for the first time that the and of dietary fats the expression of LXRα, is for the stimulation of CETP by dietary when given along with high-fat The of regulation of CETP activity by the and LXRα is Transgenic mice expressing human CETP under the control of its natural flanking region were from Tall Tall cholesterol transcription of the human cholesteryl ester transfer protein gene in on natural flanking PubMed Google mice were from The mice were with mice to in cholesterol ester transfer protein (CETP) and its by in mice expressing human PubMed Scopus Google were in a and with a were given diet and for the mice were fed a diet or high from in a MUFA or in a in the presence or absence of cholesterol. acid of the diets that the MUFA diet whereas the diet The were fed the diets for the and of the diet and the of the diet from were and by in were and in were were in with the and of the on and the of of and were by the of in a and were from liver as in by of PubMed Scopus Google Plasma and liver lipid were for cholesterol and were The with and cholesterol in the by The from and of the of cholesterol in of the 18: PubMed Scopus Google Plasma CETP activity a CETP activity to mice expressing human CETP and of Cholesteryl ester transfer activity for were the as with in cholesterol ester transfer protein (CETP) and its by in mice expressing human PubMed Scopus Google The transfer of from HDL to in a control from that in the and the for CETP activity were as cholesteryl ester transfer CETP in the CETP as in cholesterol ester transfer protein (CETP) and its by in mice expressing human PubMed Scopus Google of the were a a CETP of in CETP mRNA from to of by acid PubMed Scopus Google CETP mRNA were by reverse transcription and in in cholesterol ester transfer protein (CETP) and its by in mice expressing human PubMed Scopus Google The of CETP mRNA to mRNA and as gene of the human CETP gene region to as a were Chouinard R.A. C. Tall A.R. cholesteryl ester transfer protein gene dietary cholesterol and expression in and liver and expression is by in Full Full PubMed Scopus Google the of the human CETP gene and of the and in the in The with and the of the CETP gene region to in and by with the CETP gene the to a human from to and to with to The of CETP were and of and gene to the of the SW 872 were from the The were to in a of in and to cholesteryl ester transfer protein in to Lipid Res. Full PubMed Google were as and by oleic acid to fatty and for were with and and and were under for the effect of fatty acids and cholesterol on CETP gene the CETP gene and were SW 872 to the The and human cholesterol gene to regulation by fatty acids receptor Full Full PubMed Scopus Google The of by The were with to control for to the acid monounsaturated fatty to fatty acid The and human cholesterol gene to regulation by fatty acids receptor Full Full PubMed Scopus Google and cholesterol in and to the for fatty acids and for the alone. were with with oleic or cholesterol for were and the in and were for The for activity and activity The and human cholesterol gene to regulation by fatty acids receptor Full Full PubMed Scopus Google liver were from liver on as of liver in of and were for and for and the protein by the of with the Full PubMed Google of protein were to on the were to the of LXRα and the were with a of and in and The were with and with a of the for in the were by The for were The from the were and a The were considered and of mice were fed low-fat or high-fat diets in or in with or cholesterol. in or the The the of the under dietary and the the effect of in and of dietary fats and cholesterol on lipid and as as were in and given in a high-fat diet enriched in or effect on cholesterol with a low-fat MUFA or Addition of cholesterol to the low- or high-fat MUFA and diets effect on cholesterol with mice fed the MUFA or diets alone. Plasma cholesterol were in mice fed the low-fat diets with or cholesterol with mice fed the low- or high-fat MUFA lipid of mice fed a a cholesterol a cholesterol a cholesterol a cholesterol a saturated fatty mice mice expressing human cholesteryl ester transfer were fed a low-fat or a high-fat diet enriched in or with and dietary cholesterol for by and for and and as in and for mice on in a saturated fatty mice mice expressing human cholesteryl ester transfer were fed a low-fat or a high-fat diet enriched in or with and dietary cholesterol for by and for and and as in and for mice on did not mice fed the low- or high-fat MUFA Addition of cholesterol to the low-fat MUFA diet increased high-fat effect of addition of cholesterol fed the diets did not in the low- and high-fat However, addition of cholesterol to low- and high-fat diets increased were in mice fed of diets with the MUFA were in mice fed the high-fat MUFA diets with or cholesterol with mice fed the low-fat MUFA Addition of cholesterol to the low-fat MUFA diet the whereas addition of cholesterol to the high-fat MUFA diet were in mice fed the high-fat diet with or cholesterol with mice fed the low-fat were in high-fat mice with low- and high-fat mice with and dietary cholesterol. effect of low- or high-fat MUFA diets or addition of dietary cholesterol to the MUFA diets or high on in when mice were fed high-fat diets with the mice fed low-fat Addition of cholesterol to the low-fat diets increased whereas it effect on in mice fed the high-fat were to in mice fed of diets with MUFA in lipid of mice fed diets enriched in or with or dietary given in in cholesterol mice fed low- or high-fat MUFA diets or low- or high-fat Addition of cholesterol to low- and high-fat MUFA and diets increased cholesterol to that dietary cholesterol is to the in cholesterol when mice were fed diets with MUFA diets and high with and lipid of mice fed a mice were fed a low-fat or a high-fat diet enriched in or with and dietary cholesterol for were and were and for cholesterol and as in and for mice on in a mice were fed a low-fat or a high-fat diet enriched in or with and dietary cholesterol for were and were and for cholesterol and as in and for mice on of mice fed high-fat MUFA diets were with in mice fed low-fat MUFA Addition of cholesterol to low- and high-fat MUFA diets a in did not mice fed the low- or high-fat with or cholesterol. were in mice fed the low-fat diets with mice fed the low-fat MUFA Addition of cholesterol to low-fat diets the with that in MUFA in and mice when were increased and and with In addition to the of fatty acids the and of in the diet we the CETP CETP and CETP mRNA in mice fed low- and high-fat MUFA and Plasma CETP CETP and CETP mRNA were in mice fed a high-fat MUFA diet with mice fed a low-fat MUFA diet In mice fed the high-fat a with mice fed the low-fat the not In mice fed the MUFA diet CETP and mRNA with mice fed the diets and high The in CETP activity the MUFA and diets with high-fat clearly that the and of CETP and gene expression. is to CETP activity and CETP gene expression in mice expressing human and saturated fats effect Tall cholesterol transcription of the human cholesteryl ester transfer protein gene in on natural flanking PubMed Google However, it is not cholesterol given along with dietary fats a effect on CETP regulation. the of dietary cholesterol given along with a diet enriched in or on CETP and gene expression in mice fed a low- or a high-fat Addition of cholesterol to the low-fat MUFA diet increased CETP activity with in CETP and CETP mRNA the addition of cholesterol to the high-fat MUFA diet inhibited CETP activity with a decrease in CETP mRNA and in CETP on we that addition of cholesterol to the or low-fat MUFA diet on CETP gene regulation. cholesterol to the low-fat a in CETP and mRNA the not In to we with high-fat MUFA cholesterol given with a diet enriched in high-fat effect on CETP or mRNA that the regulation of CETP by dietary cholesterol is by the and of dietary the of regulation of the CETP gene by fatty acids and SW 872 were with CETP gene of the CETP that stimulation of the CETP gene is of the region and involves the transcription Tall A.R. of human CETP expression in and in mice by PubMed Scopus Google in SW 872 with CETP gene The were with cholesterol. of increased when cholesterol to the that of the CETP gene is of the CETP regulation by oleic acid is the SW 872 were with CETP gene The were with oleic acid to fatty acid a of increased the expression of that the fatty regulation of the CETP gene is of the In in we that the and of dietary fats the regulation of the of we CETP gene SW 872 and the with oleic acid to fatty along with cholesterol the In to the addition of oleic acid along with cholesterol the stimulatory effect of cholesterol on that oleic acid and cholesterol CETP gene expression when given alone. However, addition of fatty acids along with cholesterol with the stimulatory effect of cholesterol on CETP gene regulation. acids and cholesterol in the acids of and cholesterol is a for LXRα and lipid homeostasis by regulating that involved in cholesterol and fatty acid C. a for fatty acid regulation of gene PubMed Scopus Google Scholar, of fatty acids on gene of receptor liver X receptor α and Nutr. PubMed Scopus Google Scholar, C. of gene expression by fatty Nutr. Google Scholar, of the liver X receptor Google Scholar, C. and lipid and the of Lipid Res. Full Full PubMed Scopus Google Scholar, of gene expression by dietary Rev. Nutr. PubMed Scopus Google the of fatty acid with regulation of the CETP gene by cholesterol in we to is the of regulation of the expression of the transcription is of the for CETP expression in mice under the control of its natural flanking region Tall cholesterol transcription of the human cholesteryl ester transfer protein gene in on natural flanking PubMed Google the protein expression of and LXRα in the of mice fed diets by fed high-fat MUFA diets increased expression of with low-fat of cholesterol in the high-fat MUFA diet protein expression with the high-fat MUFA diet alone. the protein the expression of in low-fat mice in the absence or presence of cholesterol The of or the addition of cholesterol effect on protein expression in mice not that is by high-fat MUFA diets and that the addition of cholesterol to the high-fat MUFA diets the expression of In to LXRα protein in mice fed the low-fat MUFA and addition of cholesterol to the low-fat MUFA diet increased LXRα protein expression the of to inhibited the expression of LXRα cholesterol to high-fat MUFA it did not rescue the effect of high-fat the receptor LXRα to as a for cholesterol Tall A.R. of human CETP expression in and in mice by PubMed Scopus Google effect of diets on LXRα protein expression not clearly that high-fat MUFA diets LXRα protein expression and that the addition of cholesterol not rescue LXRα protein expression. cholesterol and saturated fats to CETP activity and mRNA Tall A.R. Cholesteryl ester transfer protein and high density to cholesterol in to apolipoprotein Lipid Res. Full PubMed Google Scholar, Tall A.R. and of lipid transfer protein Full PubMed Google Scholar, lipid transfer in PubMed Google Scholar, Tall A.R. Plasma of cholesteryl ester transfer protein in the of dietary PubMed Scopus Google Scholar, Tall Plasma lipid transfer protein as a of the of PubMed Scopus Google Scholar, dietary acid with acid HDL and CETP activity in Nutr. Google Scholar, of dietary fatty acid on the CETP activity and lipoproteins in Lipid Res. Full Full PubMed Google However, the effect of fatty acids monounsaturated fatty on the regulation of CETP is dietary acid with acid HDL and CETP activity in Nutr. Google Scholar, of dietary fatty acid on the CETP activity and lipoproteins in Lipid Res. Full Full PubMed Google Scholar, on cholesterol and by dietary oleic acid and acid in 1995; PubMed Scopus Google Scholar, in the activity of lipid transfer protein in human Full PubMed Scopus Google Scholar, of by dietary acid and oleic acid in 1995; Full PubMed Scopus Google Scholar, C. and fatty acid diets decrease cholesterol ester transfer protein in Nutr. PubMed Scopus Google Scholar, of dietary with is with HDL cholesterol and cholesterol ester transfer protein in fed Nutr. PubMed Scopus Google MUFA diets to decrease CETP activity on cholesterol and by dietary oleic acid and acid in 1995; PubMed Scopus Google Scholar, in the activity of lipid transfer protein in human Full PubMed Scopus Google Scholar, C. and fatty acid diets decrease cholesterol ester transfer protein in Nutr. PubMed Scopus Google in CETP activity with diets dietary acid with acid HDL and CETP activity in Nutr. Google Scholar, of dietary with is with HDL cholesterol and cholesterol ester transfer protein in fed Nutr. PubMed Scopus Google In the of MUFA and the diet of fatty acids along with In the diets were fed for time The present to of the to CETP regulation by diets in and to dietary fats with cholesterol to the expressing the human CETP gene under the control of its natural flanking region Tall cholesterol transcription of the human cholesteryl ester transfer protein gene in on natural flanking PubMed Google mice were fed a diet enriched in or and high with and dietary cholesterol for CETP and mRNA were in mice fed diets with mice fed diets and high to by dietary acid with acid HDL and CETP activity in Nutr. Google and of dietary with is with HDL cholesterol and cholesterol ester transfer protein in fed Nutr. PubMed Scopus Google in CETP activity by to that the addition of cholesterol to the low-fat MUFA diet increased CETP and gene expression, as whereas the addition of cholesterol to the high-fat MUFA diet CETP activity and mRNA expression. effect not in mice fed that the effect of cholesterol the effect of dietary fatty high is of with cholesterol to on cholesterol and by dietary oleic acid and acid in 1995; PubMed Scopus Google Scholar, of by dietary acid and oleic acid in 1995; Full PubMed Scopus Google that addition of oleic acid to a diet in in CETP that oleic acid with the of CETP to that oleic acid with cholesterol to we that the regulation of by cholesterol on the of dietary fats the of dietary cholesterol on cholesterol gene Lipid Res. Full PubMed Google expression, the stimulatory effect of cholesterol in the presence of a diet enriched in and effect not with a diet enriched in fatty The that the regulation of CETP is by the and of dietary to the for The of the CETP gene is of the region Tall A.R. of human CETP expression in and in mice by PubMed Scopus Google in SW 872 cells, in the expression of increased when cholesterol to the The of in the diet to the expression of involved in lipid of gene expression by dietary Rev. Nutr. PubMed Scopus Google Scholar, C. C. of high-fat on the expression of and in PubMed Google in high-fat diets the expression. In the present CETP activity and mRNA were in mice fed the high-fat MUFA diet with low-fat that the of CETP expression. the of the effect of dietary fats on CETP regulation is a we in of the of the human CETP with oleic acid the expression of the human CETP and the the of the human CETP that fatty acids the CETP and the fatty acid of the CETP The of CETP to dietary cholesterol when given along with high-fat MUFA diets in in were in the in SW 872 with gene of with oleic acid and cholesterol given the stimulatory effect of fatty acids and cholesterol alone. is that the regulation of CETP by cholesterol involves the of to the region of the CETP gene Tall A.R. of human CETP expression in and in mice by PubMed Scopus Google the that the presence of a high-fat MUFA diet inhibited the of we the effect of by the expression of that the high-fat MUFA diet the expression of LXRα and that addition of cholesterol to the high-fat MUFA diet to rescue inhibition of LXRα expression by the high-fat MUFA or in with the of stimulation of CETP under is that a of LXRα is to the expression of that fatty acids with in leads to a decrease in the expression of acid regulation of liver X and receptor in Full Full PubMed Scopus Google Scholar, The of liver X in the fatty acid regulation of gene Full Full PubMed Scopus Google that the effect of fatty acids on the regulation of LXRα expression on the of The regulation of LXRα by fatty acids is the with fatty acids and effect of a high-fat diet on LXRα expression when given or in with cholesterol not the diet a effect on CETP regulation. in expression by the high-fat MUFA is that the increased expression of with LXRα to that LXRα and in The and human cholesterol gene to regulation by fatty acids receptor Full Full PubMed Scopus Google Scholar, The of receptor with liver X receptor the stimulatory effect of on the cholesterol gene PubMed Scopus Google Scholar, R.A. The receptor with the receptor and Full Full PubMed Scopus Google Scholar, of the human liver X receptor PubMed Scopus Google Scholar, in is involved in cholesterol and Full Full PubMed Scopus Google Scholar, fatty acid and cholesterol by liver X PubMed Scopus Google Scholar, receptor and liver X receptor in regulation of fatty acid inhibition of PubMed Scopus Google Scholar, receptor and liver X receptor in regulation of fatty acid lipid gene inhibition of PubMed Scopus Google the of to liver X receptor whereas LXRα the of to and that the in the gene a The and human cholesterol gene to regulation by fatty acids receptor Full Full PubMed Scopus Google The gene by LXRα and the of the the of the and LXRα to expression The of receptor with liver X receptor the stimulatory effect of on the cholesterol gene PubMed Scopus Google fatty acid and cholesterol by liver X PubMed Scopus Google the presence of in the LXRα were to the in to a it is that the of by the high-fat MUFA diet is for the inhibition of LXRα by of to a in the LXRα or not fatty regulation of CETP involves the present in the of LXRα CETP is a of of the involved in fatty acid and cholesterol to in that fatty acids with the regulation of CETP the effect of fatty acids and cholesterol on CETP regulation is to the of with the CETP or to the regulation of LXRα by fatty acids is not and to a in the human CETP region to the as in under in to to and to the of Plasma CETP with CETP liver that the regulation of CETP in the liver CETP in Tall Plasma lipid transfer protein as a of the of PubMed Scopus Google The of CETP in the of by the of and of the and from low-fat that with in CETP the high-fat MUFA diets to a with the CETP is a decrease in CETP activity when cholesterol is to the high-fat MUFA the a with in of dietary fatty acid on the CETP activity and lipoproteins in Lipid Res. Full Full PubMed Google in CETP activity of fed diets enriched in or fatty However, addition of cholesterol to of diets increased CETP is not in with dietary and cholesterol in the and the diets were fed for time we and in The diet we from it is that is a that the effect of cholesterol. it is to the effect of dietary cholesterol on CETP regulation when given along with or did not a effect of the diet on CETP activity or mRNA expression, is not with The high-fat diet in is in acid is considered to a fatty in acid to effect on cholesterol and of cholesterol is in the liver of mice fed fats enriched with fatty Nutr. PubMed Scopus Google In it is to from the the regulation of CETP by dietary fats on However, the that cholesterol not a effect on CETP and that the regulation on the and of in the for the first is that cholesterol and fatty acids to CETP expression, the of transcription as and The of the regulation of by cholesterol with fatty acids is dietary The to Tall for the CETP The to with CETP by a from the of and by the a from the of

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How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.004
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.533
Threshold uncertainty score0.412

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0040.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0010.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.087
GPT teacher head0.388
Teacher spread0.301 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

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Citations26
Published2005
Admission routes2
Has abstractyes

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Same venueJournal of Lipid ResearchSame topicCholesterol and Lipid MetabolismFrench-language works237,207