E-GEOD-44000
Ontology highlight
ABSTRACT:
OTHER RELATED OMICS DATASETS IN: PRJNA188320
PROVIDER: E-GEOD-44000 | ExpressionAtlas | 2015-07-10
REPOSITORIES: ExpressionAtlas
Similar Datasets
Project description:Transcriptome profile of subcutaneous adipocytes isolated from obese vs. lean postmenopausal women
| PRJNA188320 | ENA
Project description:Adipocytes isolated from lean and obese postmenopausal women with no significant differences in metabolic syndrome parameters demonstrate changes in multiple inflammatory, metabolic and structural gene families. Purified adipocyte samples were isolated from subcutaneous adipose tissue surgical biopsies of 7 obese (BMI>30) and 7 lean (BMI<25) postmenoposal women and gene expression was quantified with Agilent-014850, 4X44K human whole genome platform arrays (GPL6480)
2013-02-02 | E-GEOD-44000 | biostudies-arrayexpress
Project description:94 human adipocyte samples isolated from whole adipose tissues using collagenase digestion of tissue and flotation of lipid-laden adipocytes, followed by RNA isolation and RNA sequencing (SMARTer Stranded Total RNA-Seq library preparation, HiSeq 4000 100-bp paired-end reads). Adipocyte samples comprise subcutaneous and visceral adipocytes isolated from obese and lean people (N=24 obese-subcutaneous, N=24 obese-visceral, N=22 control-subcutaneous, N=24 control-visceral). Human adipocyte RNA sequencing data are provided as BAM files.
| EGAD00001010195 | EGA
Project description:The association between central obesity and insulin resistance reflects the properties of visceral adipose tissue. Our aim was to gain further insight into this association by analysing the lipid composition of subcutaneous and omental adipose tissue in obese women with and without insulin resistance. Subcutaneous and omental adipose tissue and serum were obtained from 29 obese nondiabetic women, 13 of whom were hyperinsulinemic. Histology, and lipid and gene profiling were performed. In omental adipose tissue of obese, insulin-resistant women, adipocyte hypertrophy and macrophage infiltration were accompanied by an increase in GM3 ganglioside and its synthesis enzyme ST3GAL5; in addition, phosphatidylethanolamine (PE) lipids were increased and their degradation enzyme, PEMT, decreased. ST3GAL5 was expressed predominantly in adipose stromovascular cells and PEMT in adipocytes. Insulin resistance was also associated with an increase in PE lipids in serum. Total RNA was isolated and up to 400 ng of total RNA per sample was labelled and hybridized to Illumina HumanHT-12_V4 expression BeadChip platform. Paired subcutaneous and omental samples from 6 women were analysed.
2015-12-07 | E-GEOD-73108 | biostudies-arrayexpress
Project description:Microarray analysis comparing gene expression profiles of adipocytes from non-diabetic lean vs non-diabetic obese Pima Indian subjects to identify differentially expressed adipocyte genes with obesity. RNA samples of isolated abdominal subcutaneous adipocytes from 20 lean (10 Males / 10 Females, aged 31±6 year, Body Mass Index 25±3 kg/m2 ) and 19 obese (9M/10F, 29±5y, 55±8 kg/m2 ) subjects were hybridized individually to Affymetrix oligonucleotide arrays HG-U95A, B, C, D, and E.
2007-08-25 | E-GEOD-2508 | biostudies-arrayexpress
Project description:Microarray analysis comparing gene expression profiles of adipocytes from non-diabetic lean vs non-diabetic obese Pima Indian subjects to identify differentially expressed adipocyte genes with obesity. RNA samples of isolated abdominal subcutaneous adipocytes from 20 lean (10 Males / 10 Females, aged 31±6 year, Body Mass Index 25±3 kg/m2 ) and 19 obese (9M/10F, 29±5y, 55±8 kg/m2 ) subjects were hybridized individually to Affymetrix oligonucleotide arrays HG-U95A, B, C, D, and E. Keywords = adipocyte Keywords = obesity Keywords = inflammation Keywords = gene expression Keywords: other
2006-01-01 | GSE2508 | GEO
Project description:The association between central obesity and insulin resistance reflects the properties of visceral adipose tissue. Our aim was to gain further insight into this association by analysing the lipid composition of subcutaneous and omental adipose tissue in obese women with and without insulin resistance. Subcutaneous and omental adipose tissue and serum were obtained from 29 obese nondiabetic women, 13 of whom were hyperinsulinemic. Histology, and lipid and gene profiling were performed. In omental adipose tissue of obese, insulin-resistant women, adipocyte hypertrophy and macrophage infiltration were accompanied by an increase in GM3 ganglioside and its synthesis enzyme ST3GAL5; in addition, phosphatidylethanolamine (PE) lipids were increased and their degradation enzyme, PEMT, decreased. ST3GAL5 was expressed predominantly in adipose stromovascular cells and PEMT in adipocytes. Insulin resistance was also associated with an increase in PE lipids in serum.
2015-12-07 | GSE73108 | GEO
Project description:Adipocytes isolated from lean and obese postmenopausal women with no significant differences in metabolic syndrome parameters demonstrate changes in multiple inflammatory, metabolic and structural gene families.
2013-02-02 | GSE44000 | GEO
Project description:Adipose tissue (AT) distribution is an important determinant of cardiometabolic health. Increased visceral adiposity has been associated with a higher risk of obesity-related diseases. An important step in deciphering the molecular complexity of subcutaneous AT (SAT) and visceral AT (VAT) is to elucidate the molecular composition of the principal AT cell type, adipocytes. We present a comprehensive protein expression profile of abdominal subcutaneous (SA) and omental visceral adipocytes (VA). We isolated adipocytes from paired AT biopsies obtained during bariatric surgery of 19 morbidly obese women (BMI > 30 kg/m2) and performed state-of-the-art mass spectrometry to investigate their proteome profiles. We identified 3,686 proteins groups and found 1,140 differentially expressed proteins (adj. p-value < 0.05), of which 576 proteins were upregulated in SA and 564 in VA samples. In addition to providing a global protein profile of abdominal SA and omental VA, we also present the most differentially expressed pathways and processes distinguishing SA from VA. We show that SA are significantly more active in processes linked to vesicular transport and secretion, and also to increased lipid metabolism activity. Conversely, the expression of proteins involved in the mitochondrial energy metabolism and translational or biosynthetic activity is higher in VA. We also performed prediction analyses of differentially expressed putative secreted proteins, which revealed a significantly higher number of potentially secreted proteins in SA compared to VA. Our analysis represents a valuable resource of protein expression profiles in abdominal SA and omental VA, highlighting key differences in their role in obesity. Additionally, we predict possible protein targets among secreted proteins, which may be utilized for the further investigation of the role of different AT depots in obesity using peripheral blood.
2021-11-04 | PXD024734 | Pride
Project description:Background Obesity is associated with changes in fat cell gene expression and metabolism. What drives these changes is not well understood. We aimed to explore fat cell epigenetics, i.e., DNA methylation, as one mediator of gene regulation, in obese women. The global DNA methylome for abdominal subcutaneous fat cells was compared between 15 obese case (BMI 41.4 ± 4.4 kg/m 2 , mean ± SD) and 14 never-obese control women (BMI 25.2 ± 2.5 kg/m 2 ). Global array-based transcriptome analysis was analyzed for subcutaneous white adipose tissue (WAT) from 11 obese and 9 never-obese women. Limma was used for statistical analysis. Results We identified 5529 differentially methylated DNA sites (DMS) for 2223 differentially expressed genes between obese cases and never-obese controls (false discovery rate <5 %). The 5529 DMS displayed a median difference in beta value of 0.09 (range 0.01 to 0.40) between groups. DMS were under-represented in CpG islands and in promoter regions, and over-represented in open sea-regions and gene bodies. The 2223 differentially expressed genes with DMS were over-represented in key fat cell pathways: 31 of 130 (25 %) genes linked to “adipogenesis” (adjusted P = 1.66 × 10 −11 ), 31 of 163 (19 %) genes linked to “insulin signaling” (adjusted P = 1.91 × 10 −9 ), and 18 of 67 (27 %) of genes linked to “lipolysis” (P = 6.1 × 10 −5 ). In most cases, gene expression and DMS displayed reciprocal changes in obese women. Furthermore, among 99 candidate genes in genetic loci associated with body fat distribution in genome-wide association studies (GWAS); 22 genes displayed differential expression accompanied by DMS in obese versus never-obese women (P = 0.0002), supporting the notion that a significant proportion of gene loci linked to fat distribution are epigenetically regulated. Conclusions Subcutaneous WAT from obese women is characterized by congruent changes in DNA methylation and expression of genes linked to generation, distribution, and metabolic function of fat cells. These alterations may contribute to obesity-associated metabolic disturbances such as insulin resistance in women. The global DNA methylome in abdominal subcutaneous fat cells was compared between 15 obese cases (BMI 41.4±4.4 kg/m2, mean ± SD) and 14 never-obese control women (BMI 25.2±2.5 kg/m2).
2015-09-15 | E-GEOD-67024 | biostudies-arrayexpress