Transcriptome of human coronory endothelial cells in response to nitro-conjugated linoleic acid
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ABSTRACT:
PROVIDER: PRJNA512287 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Functional genomic analysis of liver tissue extracted from polygenic obese mice fed either a control (1% linoleic acid) or treatment (1% trans 10, cis 12 conjugated linoleic acid) diet after fourteen days.
2008-06-11 | E-GEOD-1594 | biostudies-arrayexpress
Project description:This SuperSeries is composed of the following subset Series:; GSE8679: Gene expression in mouse white adipose tissue; GSE8681: Gene expression in mouse 3T3-L1 adipocyte tissue culture treated with CLA; GSE8682: Gene expression in mouse 3T3-L1 adipocyte tissue culture treated with tunicamycin; GSE8683: Gene expression in 3T3-L1 mouse tissue (preadipocytes) treated with Trans-10,Cis-12 conjugated linoleic acid(t10c12 CLA); GSE8684: Gene expression in mouse 3T3-L1 adipocyte tissue culture treated with cis-9,trans-11 conjugated linoleic acid(c9t11 CLA) Experiment Overall Design: Refer to individual Series
2008-06-20 | E-GEOD-11384 | biostudies-arrayexpress
Project description:Conjugated Linoleic Acid (CLA) is a collective term for the positional and geometric isomers of linoleic acid. In recent years CLA has been reported to have anti-carcinogenic, anti-obesity, anti-inflammatory and anti-artherogenic effects. The aim of this study was to determine the effects of a natural high-CLA enriched beef source on three primary insulin responsive tissues: adipose, liver and skeletal muscle.
2010-10-19 | GSE23337 | GEO
Project description:The white adipose tissue (WAT) rapidly loses mass when mice are fed a diet containing trans-10, cis-12 conjugated linoleic acid (t10c12 CLA). A microarray analysis of WAT due to CLA feeding was performed to better define the processes and genes involved. WAT weight decreased by ca. 80% over 17 days of feeding a 0.5% t10c12 CLA diet. The lipid volume decreased by 90% and the number of adipocytes and total cells were reduced by15% and 47%, respectively. Microarray profiling of replicated pools of control and treated mice (n=140) at seven time points over the 17day feeding indicated between 2798 to 4318 genes showed mRNA changes of 2-fold or more. Transcript levels for genes of glucose and fatty acid import or biosynthesis were significantly reduced. A prolific inflammation response was indicated by the 2 to100-fold induction of many cytokine transcripts, including those for IL-6, IL1?, TNF ligands, and CXC family members We used microarrays to characterize transcriptome changes in mouse adipose tissue due to feeding trans-10 cis-12 linoleic acid . Keywords: time course
2006-07-28 | GSE4671 | GEO
Project description:Activated AMPK and prostaglandins are involved in the response to conjugated linoleic acid and are sufficient to cause lipid reductions in adipocytes. Trans-10, cis-12 conjugated linoleic acid (t10c12 CLA) reduces triglyceride levels in adipocytes. AMP-activated protein kinase (AMPK) was recently demonstrated to be involved in the emerging pathways regulating this response. This study investigated the role of AMPK and inflammation in lowering triglyceride levels by testing the following hypotheses: 1) A moderate activator of AMPK, such as metformin, and an inflammatory response are sufficient to reduce triglycerides, and 2) Strong activation of AMPK is also sufficient. These experiments were performed by adding compounds that affect these pathways and measuring their effects in 3T3-L1 adipocytes. Tumor necrosis factor α (TNF-α), an inflammatory cytokine, increased the ability of metformin to reduce triglycerides, but TNF-α was observed to activate AMPK. A comparison of metformin, phenformin, TNF-α, and t10c12 CLA found a correlation between AMPK activity level and triglyceride reduction. Inhibitors of the prostaglandin (PG) biosynthetic pathway interfered with t10c12 CLA's ability to reduce triglycerides. Inhibitors of MAPK/ERK kinase or Jun N-terminal kinase interfered with the phosphorylation of phospholipase A2 and triglyceride reductions. Keywords: control/treatment
2010-08-10 | GSE17404 | GEO
Project description:The trans-10, cis-12-isomer of conjugated linoleic acid (CLA) causes a rapid reduction of body and adipose mass in mice by decreasing adipocyte size and number. In addition to changes in adipose tissue, numerous studies have reported alterations in hepatic lipid metabolism. Livers of CLA fed mice gain mass due to lipid accumulation; however, the precise molecular mechanisms are unknown. To elucidate these mechanisms, we examined fatty acid composition and gene expression profiles of livers from a polygenic obese line of mice fed 1% trans-10, cis-12 CLA. Following examination of the fatty acid profile it was concluded that stearoyl CoA desaturase (SCD) activity was unaffected by CLA. Analysis of gene expression data led to the identification of 1393 genes differentially expressed in the liver of CLA fed mice at a nominal P-value of 0.01 and 775 were considered significant using a false discovery rate threshold of 0.05. Following Bonferroni correction and excluding lowly expressed transcripts, 198 genes were identified as being differentially expressed with 17 genes having ⥠2-fold change. Pathway analysis of the 775 genes considered significant using FDR found that 38 of these genes are controlled by Hepatocyte Nuclear Factor 4α, a transcription factor thought to be important in controlling liver metabolic status. The list of significant differentially expressed genes found in the liver of mice fed CLA vs. LA is linked below as a supplementary file. Experiment Overall Design: Functional genomic analysis of liver tissue extracted from polygenic obese male mice fed either a control (1% linoleic acid) or treatment (1% trans 10, cis 12 conjugated linoleic acid) diet after fourteen days. Four or five mice were pooled for each labeling. There is 1 replicate for each experiment, for a total of 4 microarrays.
2009-03-07 | E-GEOD-10865 | biostudies-arrayexpress
Project description:Trans-10, cis-12 conjugated linoleic acid (t10c12 CLA) causes dramatic reductions in white adipose tissue in mice but has had limited effectiveness in humans. Determination of the signaling pathways involved may lead to better regulation of adiposity. T10c12 CLA was found to activate AMP-activating protein kinase (AMPK), a central regulator of cell metabolism. Compound C, a potent inhibitor of AMPK, prevents many of the typical responses to treatments with t10c12 CLA including the integrated stress response (ISR), the inflammatory response, the reduction in key lipogenic transcription factors, and delipidation. Treatment of adipocytes or mice with t10c12 CLA in conjunction with AMPK activator metformin results in more delipidation than treatment with the individual chemicals. Additionally, the combination showed a reduced inflammatory response relative to a t10c12 CLA treatment alone. The combination of t10c12 CLA and metformin, widely used to treat insulin resistance and Type II diabetes, has potential as a treatment for reducing adiposity in humans. Keywords: control/treatment Mouse 3T3-L1 RNA for was isolated from control linoleic acid (LA) and treatment (CLA, CLA+metformin, metformin) samples for analysis on microarrays with three biological reps.
2009-11-01 | E-GEOD-14888 | biostudies-arrayexpress
Project description:Conjugated Linoleic Acid (CLA) is a collective term for the positional and geometric isomers of linoleic acid. In recent years CLA has been reported to have anti-carcinogenic, anti-obesity, anti-inflammatory and anti-artherogenic effects. The aim of this study was to determine the effects of a natural high-CLA enriched beef source on three primary insulin responsive tissues: adipose, liver and skeletal muscle. ob/ob mice were assigned to one of two diets: a control beef diet, low in c9, t11-CLA (control diet) or a c9, t11-CLA enriched beef diet. After a 28 day feeding trial, RNA was extracted from adipose, liver and skeletal muscle tissue and hybridized to Affymetrix microarrays.
2010-10-19 | E-GEOD-23337 | biostudies-arrayexpress
Project description:Trans-10, Cis-12 conjugated linoleic acid (t10c12 CLA) causes fat loss in mouse 3T3-L1 adipocyte tissue culture; however cis-9, trans-11 CLA does not (this series). The early transcriptome changes were analyzed using high-density microarrays to better characterize the signaling pathways responding to c9t11 CLA. Their gene expression responses between 8 to 12 hr after treatment showed no gene expression changes indicative of an integrated stress response (ISR). Keywords: control/treatment time course
2008-01-11 | GSE8684 | GEO
Project description:Activated AMPK and prostaglandins are involved in the response to conjugated linoleic acid and are sufficient to cause lipid reductions in adipocytes. Trans-10, cis-12 conjugated linoleic acid (t10c12 CLA) reduces triglyceride levels in adipocytes. AMP-activated protein kinase (AMPK) was recently demonstrated to be involved in the emerging pathways regulating this response. This study investigated the role of AMPK and inflammation in lowering triglyceride levels by testing the following hypotheses: 1) A moderate activator of AMPK, such as metformin, and an inflammatory response are sufficient to reduce triglycerides, and 2) Strong activation of AMPK is also sufficient. These experiments were performed by adding compounds that affect these pathways and measuring their effects in 3T3-L1 adipocytes. Tumor necrosis factor α (TNF-α), an inflammatory cytokine, increased the ability of metformin to reduce triglycerides, but TNF-α was observed to activate AMPK. A comparison of metformin, phenformin, TNF-α, and t10c12 CLA found a correlation between AMPK activity level and triglyceride reduction. Inhibitors of the prostaglandin (PG) biosynthetic pathway interfered with t10c12 CLA's ability to reduce triglycerides. Inhibitors of MAPK/ERK kinase or Jun N-terminal kinase interfered with the phosphorylation of phospholipase A2 and triglyceride reductions. Keywords: control/treatment Mouse 3T3-L1 RNA was isolated from control (LA) and treatment (CLA, phenformin) samples for analysis on microarrays with three biological replicates per sample. Limma data are available in the Supplementary files 'GSE17404_limma_CLAvsLA.txt', 'GSE17404_limma_PFMvsLA.txt', and 'GSE17404_limma_PFMvsCLA.txt'.
2010-08-10 | E-GEOD-17404 | biostudies-arrayexpress