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Consequences of exchanging carbohydrates for proteins in the cholesterol metabolism of mice fed a high-fat diet

ABSTRACT: Dietary proteins have profound effects on lipid metabolism but the mechanism remains to be elucidated. In the present study, we examined the temporal impact of dietary proteins in isoenergetic high fat diets on lipid metabolism of C57BL/6J mice.

ORGANISM(S): Mus musculus

PROVIDER: GSE20260 | GEO | 2012/12/19

SECONDARY ACCESSION(S): PRJNA124225

REPOSITORIES: GEO

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Consequences of exchanging carbohydrates for proteins in the cholesterol metabolism of mice fed a high-fat diet

Project description:Dietary proteins have profound effects on lipid metabolism but the mechanism remains to be elucidated. In the present study, we examined the temporal impact of dietary proteins in isoenergetic high fat diets on lipid metabolism of C57BL/6J mice. Mice were first fed a low protein (P) to carbohydrate (C) ratio high-fat diet (L-P/C-HF) for 10 weeks and then a half of mice were changed to a high protein to carbohydrate ratio high-fat diet (H-P/C-HF) for additional 4 weeks whereas the remaining mice continued eating the L-P/C-HF diet.

2012-12-19 | E-GEOD-20260 | biostudies-arrayexpress

Expression data from germ-free and conventional mice fed lard or fish oil for 11 weeks

Project description:Dietary lipids and gut microbiota may both influence adipose tissue physiology. By feeding conventional and germ-free mice high fat diets with different lipid compositon we aimed to investigate how dietary lipids and the gut microbiota interact to influence inflammation and metabolism in epididymal adipiose tissue (EWAT) Wild-type C57Bl/6 male mice 11 weeks of age were fed isocaloric diets (45% kcal fat) with either menhaden fish oil (Research Diets, D05122102) or lard (Research Diets, D10011202) for 11 weeks. Epididymal WAT samples were harvested at the end of the experiment and analyzed by microarray.

2015-07-14 | E-GEOD-70922 | biostudies-arrayexpress

Expression data in liver from germ-free and conventional mice fed lard or fish oil for 11 weeks

Project description:Dietary lipids and gut microbiota may both influence adipose tissue physiology. By feeding conventional and germ-free mice high fat diets with different lipid compositon we aimed to investigate how dietary lipids and the gut microbiota interact to influence inflammation and metabolism in the liver Wild-type C57Bl/6 male mice 11 weeks of age were fed isocaloric diets (45% kcal fat) with either menhaden fish oil (Research Diets, D05122102) or lard (Research Diets, D10011202) for 11 weeks. Liver samples were harvested at the end of the experiment and analyzed by microarray.

2016-02-29 | E-GEOD-73195 | biostudies-arrayexpress

Expression data from germ-free and conventional mice fed lard or fish oil for 11 weeks

2015-07-14 | GSE70922 | GEO

Expression data in liver from germ-free and conventional mice fed lard or fish oil for 11 weeks

2016-02-29 | GSE73195 | GEO

Consequences of exchanging carbohydrates for proteins in the cholesterol metabolism of mice fed a high-fat diet.

Project description: Not available

| S-EPMC3490911 | biostudies-literature

Identification of hypoxia-regulated genes in the liver of common sole (Solea solea) fed different dietary lipid contents

Project description:Hepatic transcriptome of sole fed low and high lipid dietary content in the early response to hypoxic stress. Characterization of the hepatic transcriptome of S. solea in order to assess the molecular mechanisms underlying the effects of dietary lipid content on hypoxia tolerance in common sole. S. solea individuals (8 month post-hatching) were fed for two month with commercial diets containing either 11% lipids or 20% lipids. Before hypoxia challenge stress, 38 individuals (19 from each dietary group) were randomly pooled in a single tank (1 m3) and left undisturbed and unfed for 48 h. The hypoxia challenge consisted then in a decrease of water oxygenation from 100 % to 10 % within one hour, followed by a slower descent at 2 % hr-1 to 4%. As fish lost their equilibrium, they were removed and sampled. Thirty six individuals (18 from each dietary group) were also sampled in normoxic conditions, resulting in 4 experimental groups: Normoxia low-lipid, Normoxia high-lipid, Hypoxia low-lipid, Hypoxia high-lipid. The experimental design was therefore a 2-way full factorial design between two juvenile dietary lipid contents and two oxygen concentration conditions.

2013-10-07 | E-GEOD-44579 | biostudies-arrayexpress

C57BL/6N Mice on High Fat Diet Display Reduced Intestinal and Hepatic Cholesterol Levels despite a Plasma Hypercholesterolemia

Project description:Background Small intestine and liver greatly contribute to whole body lipid, cholesterol and phospholipid metabolism but to which extent cholesterol and phospholipid handling in these tissues is affected by high fat Western-style obesogenic diets remains to be defined. We therefore quantified cholesterol and phospholipid concentrations in intestine and liver and determined fecal neutral sterol and bile acid excretion in C57Bl/6N mice fed for 12 weeks either a cholesterol-free high carbohydrate control diet or a high fat diet containing 0.03 % (w/w) cholesterol. To identify underlying mechanisms of dietary adaptation in intestine and liver, changes in gene expression were assessed by microarray and qPCR profiling, respectively. Results Animals on high fat diet showed increased plasma cholesterol levels, associated with the higher dietary cholesterol supply, yet, significantly reduced cholesterol levels were found in intestine and liver. Transcript profiling revealed evidence that expression of numerous genes involved in cholesterol synthesis and uptake via LDL, but also in phospholipid metabolism, underwent compensatory regulations in both tissues. Alterations in glycerophospholipid metabolism were confirmed at the metabolite level by phospolipid profiling via mass spectrometry. Conclusions Our findings suggest that intestine and liver react to a high dietary fat intake by an activation of de novo cholesterol synthesis and other cholesterol-saving mechanisms, as well as with major changes in phospholipid metabolism, to accommodate to the fat load. The proximal part of the intestine of mice fed either a control or a high fat diet were analyzed. 5 replicates each.

2011-08-31 | E-GEOD-29748 | biostudies-arrayexpress

The role of dietary leucine and dairy protein on hepatic gene expression

Project description:We used microarray to determine the differences in hepatic gene expression for diet-induced obese Sprague-Dawley rats consuming different dietary proteins. Proteins of interest included skim milk powder (dairy), casein, and the branched-chain amino acid, leucine. The primary aims of this study were: (i) to compare the effects of diets with protein derived from casein, casein supplemented with leucine, and complete dairy on body composition and insulin sensitivity; and (ii) to determine if there is a synergistic effect of dietary Ca and protein source on body composition and insulin sensitivity. Secondarily, we used microarray analysis to examine the effect of casein, leucine, or complete dairy containing diets on the expression of hepatic genes related to lipid and glucose metabolism.

2010-08-12 | GSE23559 | GEO

The role of dietary leucine and dairy protein on gastrocemius muscle gene expression

Project description:We used microarray to determine the differences in hepatic gene expression for diet-induced obese Sprague-Dawley rats consuming different dietary proteins. Proteins of interest included skim milk powder (dairy), casein, and the branched-chain amino acid, leucine. The primary aims of this study were: (i) to compare the effects of diets with protein derived from casein, casein supplemented with leucine, and complete dairy on body composition and insulin sensitivity; and (ii) to determine if there is a synergistic effect of dietary Ca and protein source on body composition and insulin sensitivity. Secondarily, we used microarray analysis to examine the effect of casein, leucine, or complete dairy containing diets on the expression of gastrocnemius muscle genes related to lipid and glucose metabolism.

2011-10-22 | GSE33144 | GEO

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