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A healthy Nordic diet has a beneficial influence on the expression of genes involved in inflammation in subcutaneous adipose tissue

ABSTRACT: In a randomized controlled dietary intervention study we compared an isocaloric Healthy Nordic diet with the average Nordic diet for influence on abdominal subcutaneous adipose tisse gene expression. We studied obese adults with features of the metabolic syndrom, n=56. There was no significant difference in age, BMI, or gene expression between the groups before the intervention. The intervention lasted for 18-24 weeks. Gene expression was analyzed using linear mixed-effects models including specific genes as dependent variable, subject identifier as a random effect, and body weight, age, gender, study centre (i.e. also study duration), study group, time-point and study group * time-point interaction as covariates. 128 genes were significantly different regulated by the two diets with a FDR of 24%. TThese genes were overrepresented in pathways related to immune response. I conclusion, a Healthy Nordic diet reduces inflammatory gene expression in abdominal subcutaneous adipose tissue. This could contribute to beneficial influences on lipid metabolism and cardiovascular disease.

ORGANISM(S): Homo sapiens

PROVIDER: GSE56716 | GEO | 2015/01/26

SECONDARY ACCESSION(S): PRJNA244360

REPOSITORIES: GEO

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A healthy Nordic diet has a beneficial influence on the expression of genes involved in inflammation in subcutaneous adipose tissue

Project description:In a randomized controlled dietary intervention study we compared an isocaloric Healthy Nordic diet with the average Nordic diet for influence on abdominal subcutaneous adipose tisse gene expression. We studied obese adults with features of the metabolic syndrom, n=56. There was no significant difference in age, BMI, or gene expression between the groups before the intervention. The intervention lasted for 18-24 weeks. Gene expression was analyzed using linear mixed-effects models including specific genes as dependent variable, subject identifier as a random effect, and body weight, age, gender, study centre (i.e. also study duration), study group, time-point and study group * time-point interaction as covariates. 128 genes were significantly different regulated by the two diets with a FDR of 24%. TThese genes were overrepresented in pathways related to immune response. I conclusion, a Healthy Nordic diet reduces inflammatory gene expression in abdominal subcutaneous adipose tissue. This could contribute to beneficial influences on lipid metabolism and cardiovascular disease. Abdominal subcutaneous adipose needle biopsies were obtained before (W0) and after completion (W18-24) of the dietary intervention. From the biopsies 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.).

2015-01-26 | E-GEOD-56716 | biostudies-arrayexpress

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

2015-05-13 | GSE68759 | 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.).

2015-05-13 | E-GEOD-68759 | biostudies-arrayexpress

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

Project description:In a randomized controlled dietary intervention study, we compared a diet enriched in polyunsaturated fatty acids (PUFA) with a diet enriched in saturated fatty acids (SFA) for influence on abdominal subcutaneous adipose tissue gene expression. We studied young lean adults; 11 women and 25 men. There was no significant difference in age, BMI, or gene expression between the PUFA and SFA groups before the intervention. The intervention lasted for seven weeks. We calculated for each gene the absolute difference in gene expression after vs. before intervention (deltas), and compared the deltas between the PUFA and SFA group using SAM. 12 genes were significantly differentially regulated by the two diets with a FDR of 25%. These include metabolic and adipokine genes. In conclusion, dietary fatty acids have a modest influence on white adipose tissue gene expression. Abdominal subcutaneous adipose needle biopsies were obtained from young adults before (W0) and after completion (W7) of the dietary intervention. From the biopsies 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.). Signicance analysis of microarrays (SAM) was use to compare the difference in gene expression between groups.

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

Adipose tissue adaptations to an 8-week weight loss intervention in younger and older obese men,

Project description:Abdominal subcutaneous adipose tissue transcriptomes were analyzed between 11 young and 8 elderly obese men during a lifestyle intervention. Lifestyle intervention: Individuals underwent 8-weeks of calorie-restriction of 20% below their daily energy requirement aerobic combined to two sessions of resistance exercise per weeks.

2021-08-23 | GSE159809 | GEO

Bulk RNA sequencing of subcutaneous, abdominal and perivascular adipose derived stem cells

Project description:Previous publications demonstrated that there were anatomical, physiological, cellular, clinical and prognostic differences among adipose tissue present in subcutaneous areas, abdominal cavity and outside adventitial layer of artery. Thus, we wondered whether ASCs from subcutaneous adipose tissue, abdominal adipose tissue and perivascular adipose tissue were also different in gene expression. Here we performed bulk RNA-Seq assay for subcutaneous, abdominal and perivascular adipose derived stem cells.

2021-04-13 | GSE171946 | GEO

Expression data from subcutaneous adipose tissue of lean polycystic ovary syndrome (PCOS) and normoandrogenic women

Project description:Lean polycystic ovary syndrome (PCOS) women have a greater proportion of android (abdominal) fat, increased numbers of small subcutaneous (SC) abdominal adipocytes and preferential intra-abdominal fat accumulation. This study examines whether abnormal gene expression of SC abdominal adipose stem cells (ASCs) from lean PCOS women underlies this altered abdominal adipose structure-function. In this dataset, we include the expression data obtained from PCOS and NL subcutaneous adipose tissue. Differential expression of at least 1.5-fold change (P<0.05) were obtained in 120 genes (48 upregulated, 72 downregulated) of SC abdominal ASCs from PCOS versus NL women

2017-05-03 | GSE98421 | GEO

Expression of obese mice subjected to diet induced weight loss for 60 days

Project description:We used microarrays to study the gene expression dynamics during caloric restricted weight loss in obese mice after feeded with high fat diet. C57BL/6J male mice were placed on a high fat diet at 10-11 weeks of age in individual cages and kept on the diet until they reached ~ 41 g. After all the baseline (41g) measurement were made, each mouse was fed 75% of their ad libitum food intake in two divided daily "meals". The high fat diet was maintained. Mice were sacrificed after 0, 1, 3, 7, 14, 21 or 42 day of caloric restriction. Hypothalamus, liver, abdominal subcutaneous adipose, mesenteric adipose, perirenal adipose and perigonadal adipose tissues were collected for RNA extraction and hybridization on Affymetrix microarrays.

2012-12-30 | E-GEOD-30534 | biostudies-arrayexpress

Real-time quantitative PCR analysis of the effects of a longitudinal dietary intervention on human adipose tissue

Project description:Abdominal subcutaneous adipose tissue was obtained from obese individuals before, after an 8-week low calorie diet and after an ad libitum 26-week weight control phase. Clinical investigations including subcutaneous adipose tissue biopsies were performed at baseline and at the end of each phase. Main clinical outcome measures were body weight, body composition, energy intake, metabolic biochemistry. Adipose tissue gene expression profiling and lipidomics from the same samples were also assessed.

2014-11-27 | GSE60946 | GEO

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