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Brown Adipose Tissue (BAT) in Visceral Fat Depot

ABSTRACT: Case story. A patient with massive infiltration of the visceral adipose tissue depot by BAT in a patient with a catecholamine secreting paraganglioma. BAT tissue was identified by protein expression of UCP1 (western blotting and immunostaining) The goal of the study is to identify patterns of gene expression in BAT containing visceral fat compared to the patient's own subcutanous fat which did not express BAT. For comparison a pool of mRNA isolated from visceral fat from obese subjects was used.

ORGANISM(S): Homo sapiens

PROVIDER: GSE49795 | GEO | 2014/08/12

SECONDARY ACCESSION(S): PRJNA214938

REPOSITORIES: GEO

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Brown Adipose Tissue (BAT) in Visceral Fat Depot

Project description:Case story. A patient with massive infiltration of the visceral adipose tissue depot by BAT in a patient with a catecholamine secreting paraganglioma. BAT tissue was identified by protein expression of UCP1 (western blotting and immunostaining) The goal of the study is to identify patterns of gene expression in BAT containing visceral fat compared to the patient's own subcutanous fat which did not express BAT. For comparison a pool of mRNA isolated from visceral fat from obese subjects was used. Patient Case, Gene expression array from a biopsy from the patient's visceral fat and a biopsy from the subcutaneous fat compared to one array of mRNA from the visceral depot pooled from a group of obese subjects

2014-08-12 | E-GEOD-49795 | biostudies-arrayexpress

Adipose depot differences in high fat fed mice

Project description:Purpose : To understand differences in microRNA (miRNA) signatures of different adipose tissue depots to gain mechanistic insight regarding their contribution to metabolic disorders in obesity. Method : We performed small RNA-sequencing of brown, subcutaneous and visceral adipose depots from high fat diet-fed mice (mice were fed a 45% kcal fat diets from 5-6 weeks of age for 11 weeks). The main animal study reference: Kalupahana et al., J. Nutr, 2010 Results:Using the Gunaratne Next Generation pipeline (published in Creighton et al. 2009) miRNA expression profiles were identified. Counts of each unique read were normalized to total usable reads, and had 40 counts added. We mapped about 13.8 million sequence reads per sample to the Mus musculus genome (build mm 10). Altogether 1251 miRNAs were identified in three adipose tissues and out of which 246 showed differential expression with 1.25 or more fold change and p value <0.05 in one or more of the pairwise comparisons of the 3 adipose depots. Hierarchical clustering, demonstrated that biological replicates behaved appropriately as they were clustered together. BAT exhibited a different gene/ miRNA expression pattern than the 2 other WATs (SAT and VAT). SAT and VAT showed a closer relationship with each other than with BAT Conclusion : High fat diet differentially regulate specific miRNAs expression in different adipose tissue depots

2018-02-28 | GSE85101 | GEO

Target genes of thyroid hormone (TH) in brown adipose tissue (BAT) and their role during metabolic stressors [RNA-seq]

Project description:To understand the role of TH target genes in BAT, we developped a murine transgenic model in which TH signaling is selectively lost in BAT (BATKO mice). After establishing TH target genes in BAT, we used BATKO mice to understand which pathways were controlled by TH in BAT during metabolic stressors, i.e., cold and high-fat diet (HFD)

2022-04-29 | GSE201135 | GEO

SARS-CoV-2 infects adipose tissue in a fat depot- and viral lineage-dependent manner

Project description:Visceral adiposity is a risk factor for severe COVID-19, and a link between adipose tissue infection and disease progression has been proposed. Here we demonstrate that SARS-CoV-2 infects human adipose tissue and undergoes productive infection in human primary adipose-derived stromal-vascular cells differentiated into adipocytes. However, the permissiveness to infection and the cellular response depends on the anatomical origin of the cells and the viral lineage. Cells of visceral adipose tissue origin express more ACE2 and are more permissive to SARS-CoV-2 infection than their subcutaneous counterpart. SARS-CoV-2 infection leads to inhibition of lipolysis in cells of subcutaneous origin, while in visceral fat cells, it results in higher expression of pro-inflammatory cytokines. Viral load and cellular response are attenuated when visceral adipose tissue cells are infected with the SARS-CoV-2 gamma variant. A similar degree of cell death occurs 4-days after SARS-CoV-2 infection, regardless of the cell origin or viral lineage. Hence, SARS-CoV-2 infects human adipose tissue cells, replicating and altering cell function and viability in a fat depot- and viral lineage-dependent fashion.

2022-10-13 | PXD034510 | Pride

Homo sapiens

Project description:Brown Adipose Tissue (BAT) in Visceral Fat Depot

| PRJNA214938 | ENA

Expression data from exposure of BAT and WAT at 6 and 28 degrees C

Project description:We run microarrays from three per group Sv129 female mice, ten weeks old, which were maintained at 28°C (warm conditions) or 6° C (cold stimulated) for ten days, while standard animal house temperature is 22 °C. After ten days, three types of tissue were collected: Brown Adipose Tissue (BAT), Mesenteric (visceral) White Adipose Tissue (MES) and Posterior Subcutaneous White Adipose Tissue (WAT)

2014-03-01 | GSE51080 | GEO

LR11 knockout in BAT and WAT

Project description:To study the gene expression profiles of brown (BAT) and white (WAT) adipose tissues in wild type and LR11-deficeint mice. The four RNA sources, WT scWAT, Lr11 -/- scWAT, WT BAT and Lr11 -/- BAT, were prepared from subcutaneous WAT and BAT from wild-type mice and Lr11 -/- mice, respectively (n=3 each).

2015-11-01 | E-GEOD-69117 | biostudies-arrayexpress

bat metagenome

Project description:Bat samples

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Expression data from exposure of BAT and WAT at 6 and 28 degrees C

Project description:We run microarrays from three per group Sv129 female mice, ten weeks old, which were maintained at 28M-BM-0C (warm conditions) or 6M-BM-0 C (cold stimulated) for ten days, while standard animal house temperature is 22 M-BM-0C. After ten days, three types of tissue were collected: Brown Adipose Tissue (BAT), Mesenteric (visceral) White Adipose Tissue (MES) and Posterior Subcutaneous White Adipose Tissue (WAT) Different adipose tissue depots were taken for RNA extraction and hybridization on Affymetrix microarrays. We sought to determine the differences between white and brown adipose tissues at different temperatures

2014-03-01 | E-GEOD-51080 | biostudies-arrayexpress

Temperature adaptation effects on BAT metabolism in BAT specific Akt2 knockout mice

Project description:We are reporting here the effects of adaptation to different ambient temperatures in the whole genome gene expression of interscapular BAT of BAT specific Akt2 knockout mice

2017-11-10 | GSE96679 | GEO

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