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Role of milk fat globule membrane (MFGM) in modulating gene expression in humans

ABSTRACT: The aim of this study was to investigate if milk fat globule membrane (MFGM) enclosing the dairy fat influence peripheral blood mononuclear cells (PBMC) gene expression. This study was a 8-week single-blind, randomized, controlled isocaloric trial with two parallel groups including overweight (mean BMI: 28) adult women (n=30). All subjects consumed 40 g dairy fat per day either as cream (MFGM diet) or as butter oil (control diet). MFGM diet and control diet showed differential responses in plasma cholesterol. Absolute differences in gene expression were calculated for each gene in each subject, comparing after with before the intervention. These absolute differences in gene expression were compared between intervention groups with T-test and with Significance Analysis of Microarrays (SAM). 19 genes were significantly different regulated by the two diets with a FDR of 23%. Most of thechanges in gene expression correlated with changes in blood lipids. Patients were examined in the morning after 12 h's fasting. Whole blood was obtained before (W0) and after completion (W8) of the dietary intervention for isolation of PBMCs and RNA extraction. From total RNA we prepared and hybridised biotinylated complementary RNA to GeneChip Human Gene 1.1 ST Arrays (Affymetrix Inc., Santa Clara, CA), and then washed, stained and scanned the slides using standardised protocols (Affymetrix Inc.). Signicance analysis of microarrays (SAM) was use to compare the difference in gene expression between groups.

ORGANISM(S): Homo sapiens

SUBMITTER: Ingrid Dahlman

PROVIDER: E-GEOD-60148 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Role of milk fat globule membrane (MFGM) in modulating gene expression in humans

Project description:The aim of this study was to investigate if milk fat globule membrane (MFGM) enclosing the dairy fat influence peripheral blood mononuclear cells (PBMC) gene expression. This study was a 8-week single-blind, randomized, controlled isocaloric trial with two parallel groups including overweight (mean BMI: 28) adult women (n=30). All subjects consumed 40 g dairy fat per day either as cream (MFGM diet) or as butter oil (control diet). MFGM diet and control diet showed differential responses in plasma cholesterol. Absolute differences in gene expression were calculated for each gene in each subject, comparing after with before the intervention. These absolute differences in gene expression were compared between intervention groups with T-test and with Significance Analysis of Microarrays (SAM). 19 genes were significantly different regulated by the two diets with a FDR of 23%. Most of thechanges in gene expression correlated with changes in blood lipids.

2015-08-01 | GSE60148 | GEO

Influence of dietary fatty acid composition on white adipose tissue gene expression in humans

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2014-07-01 | E-GEOD-43642 | biostudies-arrayexpress

Influence of dietary fatty acid composition on white adipose tissue gene expression in humans

2014-07-01 | GSE43642 | GEO

Effect of Healthy Nordic diet on gene expression in peripheral blood mononuclear cells

Project description:In a randomized controlled dietary intervention study we compared an isocaloric Healthy Nordic diet with the average Nordic diet for influence on peripheral blood mononuclear cells (PBMC) gene expression. We studied obese adults with features of the metabolic syndrom, n=66. There was no significant difference in age, BMI, or gene expression between the groups before the intervention. The intervention lasted for 18-24 weeks. Blood samples were obtained before (W0), during (W12) and after completion (W18-24) of the dietary intervention. From the samples we extracted RNA. From total RNA we prepared and hybridised biotinylated complementary RNA to GeneChip Human Gene 1.1 ST Arrays (Affymetrix Inc., Santa Clara, CA), and then washed, stained and scanned the slides using standardised protocols (Affymetrix Inc.).

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Human adipose tissue profiled before and after 16 weeks of intense exercise training with a modest energy deficit

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