Browse
Submit Data
Databases
API
Help

Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

42 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Gene expression data from mouse liver

ABSTRACT: We used microarray analysis to examine which genes are differentially expressed in mice that received a combination of fish oil and indomethacin. We fed low density lipoprotein receptor knock-out (LDLR-/-) mice with 6% of olive oil (control) or fish oil diets in the presence or absence of indomethacin for 12 weeks. We collected total RNA from liver samples and pooled 6 RNA samples in each group for Affymetrix microarrays.

ORGANISM(S): Mus sp.

SUBMITTER: Viswanathan Saraswathi

PROVIDER: E-GEOD-23742 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

ACCESS DATA

Json Xml

Publications

Fish oil and indomethacin in combination potently reduce dyslipidemia and hepatic steatosis in LDLR(-/-) mice.

Murali Ganesan G Milne Ginger L GL Webb Corey D CD Stewart Ann B AB McMillan Ryan P RP Lyle Brandon C BC Hulver Matthew W MW Saraswathi Viswanathan V

Journal of lipid research 20120729 10

Fish oil (FO) is a potent anti-inflammatory and lipid-lowering agent. Because inflammation can modulate lipid metabolism and vice versa, we hypothesized that combining FO with cyclooxygenase inhibitors (COXIBs), well-known anti-inflammatory drugs, can enhance the anti-inflammatory and lipid-lowering effect of FO. LDLR(-/-) mice were fed a high-fat diet supplemented with 6% olive oil or FO for 12 wk in the presence or absence of indomethacin (Indo, 6 mg/l drinking water). FO reduced plasma total ...[more]

PMID: 22847176

Similar Datasets

Expression data from liver of young and old rats fed on different dietary fat sources, namely virgin olive, sunflower or fish oils

Project description:Since the liver is the central organ of metabolism, changes in diet have a great impact on this organ and overall on health with aging. It is well known that dietary fat source strongly influences many parameters of the hepatic mitochondria. These changes includes modification of lipid composition of mitochondrial membrane, affecting the mtETC functions, oxidative stress and mtDNA alterations. We used microarrays to detail the changes in gene expression provides by feeding lifelong on different dietary fat sources, and identified distinct classes of up and down-regulated genes during aging under different dietary conditions. Rats were fed lifelong on a normolipidic diet (4% w/w) with virgin olive, sunflower or fish oil as dietary fat source. At 6 and 24 months, animals were killed and liver were removed for RNA extraction and hybridization on Affymetrix microarrays. We sought to obtain changes in gene expression due to both aging and dietary conditions. There were 6 experimental groups (virgin olive oil at 6 months, sunflower oil at 6 months, fish oil at 6 months, virgin olive oil at 24 months, sunflower oil at 24 months and fish oil at 24 months. 3 animals were studied of each experimental group, so a total of 18 samples were analyzed.

2014-03-26 | E-GEOD-56166 | biostudies-arrayexpress

Differential effects of krill oil and fish oil on the hepatic transcriptome in mice

Project description:Dietary supplementation with ω-3 polyunsaturated fatty acids (ω-3 PUFAs), specifically the fatty acids docosahexaenoic acid (DHA; 22:6 ω-3) and eicosapentaenoic acid (EPA; 20:5 ω-3), is known to have beneficial health effects including improvements in glucose and lipid homeostasis and modulation of inflammation. To evaluate the efficacy of two different sources of ω-3 PUFAs, we performed gene expression profiling in the liver of mice fed diets supplemented with either fish oil or krill oil. We found that ω-3 PUFA supplements derived from a phospholipid krill fraction (krill oil) downregulated the activity of pathways involved in hepatic glucose production as well as lipid and cholesterol synthesis. The data also suggested that krill oil-supplementation increases the activity of the mitochondrial respiratory chain. Surprisingly, an equimolar dose of EPA and DHA derived from fish oil modulated fewer pathways than a krill oil-supplemented diet and did not modulate key metabolic pathways regulated by krill oil, including glucose metabolism, lipid metabolism and the mitochondrial respiratory chain. Moreover, fish oil upregulated the cholesterol synthesis pathway, which was the opposite effect of krill supplementation. Neither diet elicited changes in plasma levels of lipids, glucose or insulin, probably because the mice used in this study were young and were fed a low fat diet. Further studies of krill oil supplementation using animal models of metabolic disorders and/or diets with a higher level of fat may be required to observe these effects. Twenty-one microarrays: three diets (CO, FO, KO) x seven mice per diet x one microarray per mouse

2011-07-21 | E-GEOD-29572 | biostudies-arrayexpress

Rat colon LC-MSMS - Intake of Fish Oil Specifically Modulates Colonic Muc2 Expression in Middle-Aged Rats by Suppressing the Glycosylation Process

Project description:Dietary fats have been shown to affect gut microbiota composition and aging gene transcription of middle-aged rats at a normal dose, but little is known about such an effect on gut barrier. In colon, the main component of mucus layer is Muc2, produced by the goblet cells. This study investigated the changes in Muc2 expression, goblet cells proliferation, TLRs and inflammatory cytokines in the colon of middle-aged rats. Proteome technology was applied to explore the possible molecular mechanisms. The results indicated that intake of fish oil at a normal dose downregulated colonic Muc2 expression, and this negative effect of fish oil probably involved the suppression of mucin glycosylation process.

2018-01-02 | PXD007229 | Pride

Classification of diet modified gene signatures at the colon cancer initiation and progression stages

Project description:We used DNA microarrays to identify discriminative gene signatures for the purpose of classifying n-3 PUFA-fed, carcinogen injected Sprague Dawley rats at the initiation and progression stages. Animals were assigned to three dietary treatments differeing only in the type of fat (corn oi/n-6 PUFA, fish oil/n-3 PUFA, or olive oli/n-9 monounsaturated fatty acid). The effects of diet on colonic mucosal gene expression signatures during tumor initiation with the progression of colon cancer. Each dietary lipid source exhibited its own unique transcriptional profile, as assessed by linear discriminant analysis. Applying this novel approach we identified the single genes and the two- to three-gene combinations that best distinguished the dietary treatment groups. For the chemoprotective fish oil diet, mediators of stem cell homeostasis, e.g., ephrin B1 and bone morphogenic protein 4, were the top-permorming gene classifiers. keywords: diet analysis 29 samples were analyzed. 10 samples had repeat arrays. No control or reference samples were included.

2010-12-09 | E-GEOD-25912 | biostudies-arrayexpress

Comparative transcriptomics and metabolomic analysis of fenofibrate and fish oil treatments in mice

Project description:Elevated circulating triglycerides, which are considered a risk factor for cardiovascular disease, can be targeted by treatment with fenofibrate or fish oil. To gain insight into underlying mechanisms, we carried out a comparative transcriptomics and metabolomics analysis of the effect of 2 week treatment withfenofibrate and fish oil in mice. Plasma triglycerides were significantly decreased byfenofibrate (-49.1%) and fish oil (-21.8%), whereas plasma cholesterol was increased by fenofibrate (+29.9%) and decreased by fish oil (-32.8%). Levels of various phospholipid species were specifically decreased by fish oil, while levels of Krebs cycle intermediates were increased specifically by fenofibrate. Plasma levels of many amino acids were altered by fenofibrate and to a lesser extent by fish oil. Both fenofibrate and fish oil upregulated genes involved in fatty acid metabolism, and downregulated genes involved in blood coagulation and fibrinolysis. Significant overlap in gene regulation by fenofibrate and fish oil was observed, reflecting their property as high or low affinity agonist for PPARα, respectively. Fenofibrate specifically downregulated genes involved in complement cascade and inflammatory response. Fish oil specifically downregulated genes involved in cholesterol and fatty acid biosynthesis, and upregulated genes involved in amino acid and arachidonic acid metabolism. Taken together, the data indicate that despite being similarly potent towards modulating plasma free fatty acids, cholesterol and triglyceride levels, fish oil causes modest changes in gene expression likely via activation of multiple mechanistic pathways, whereas fenofibrate causes pronounced gene expression changes via a single pathway, reflecting the key difference between nutritional and pharmacological intervention. Expression profiling of liver from mice fed control diet, fish oil or fenofibrate for 2 weeks.

2011-10-07 | E-GEOD-32706 | biostudies-arrayexpress

Transcription profiling of liver from immature Platichthys flesus treated with model toxicants

Project description:Using the GENIPOL flounder cDNA microarray, we assessed the temporal transcriptomic responses of Platichthys flesus to model toxicants over a 16 day timespan. Immature fish were treated by intraperitoneal injection with cadmium chloride (50 micrograms/kg in saline), 3-methylcholanthrene (25mg/kg in olive oil), Aroclor 1254 (50mg/kg in olive oil), tert-butyl-hydroperoxide (5mg/kg in saline), lindane (25 mg/kg in olive oil), perfluoro-octanoic acid (100mg/kg in olive oil), olive oil or saline (0.9%). Hepatic gene expression changes were determined 1,2,4,8 and 16 days post-injection in comparison with time-matched carrier controls.

2009-06-16 | E-MAXD-32 | biostudies-arrayexpress

RNAseq of farmed and wild Atlantic salmon fed vegetable oil or fish oil or phospholipid diet from first feeding

Project description:Farmed and wild Atlantic salmon was given either vegetable oil (low DHA and EPA) feed or fish oil (high in DHA and EPA) feed or phospholipid (high in phospholipid) feed from start of feeding. We sampled and RNAseq two tissues (pyloric caeca and liver) on day 0, day 48, day 65 and day 94 after initial feeding.

2019-10-30 | E-MTAB-8306 | biostudies-arrayexpress

Transcription profiling of colon mucosa from HLAB27 transgenic rats fed extra-virgin olive oil rich in polyphenols

Project description:HLA-B27 transgenic rats, experimental model of chronic colitis, fed with a diet in which the lipid component was provided by corn oil (CO group), extra-virgin olive oil rich in phenols, 718.8 mg of total phenols/kg of olive oil (EVOO group) or the same extra-virgin olive oil, deprived of phenolic compounds but retaining other minor components such as a-tocopherol (ROO group).

2018-11-26 | E-MTAB-6218 | biostudies-arrayexpress

Transcriptional response of Atlantic salmon (Salmo salar) to fish oil vs vegetable oil based diets

Project description:The effect of different diets (i.e. fish oil based vs vegetable oil based) on liver transcription profiles over the life history stages (freshwater and marine phases) of cultured Atlantic salmon (Salmo salar) were explored. Two groups of fish were raised from first feeding on different lipid containing diets; a) the standard 100% fish oil based diet, the other enriched with a blend of vegetable oils (75%) + fish oil (25%). Liver samples were taken from fish at four time points: two freshwater phase (as parr 36 weeks post hatch (wph); as pre-smolts, 52 wph) and two marine phase ( as post-smolts 55 wph; and as adult fish , 86 wph). A total of 96 cDNA microarray hybridisations - TRAITS / SGP Atlantic salmon 17k feature cDNA microarray - were performed ( 2 diets x 4 time points x 6 biological replicates x 2 -dye swap) using a comon pooled reference contol design.

2008-08-01 | E-TABM-449 | biostudies-arrayexpress

Human in vivo nutrigenomic effect of olive oil

Project description:Olive oil is protective against risk factors for cardiovascular and cancer diseases. A nutrigenomic approach was performed to assess whether olive oil, the main fat of the Mediterranean diet modifies the gene expression in human peripheral blood mononuclear cells. Six healthy male volunteers ingested, at fasting state, 50 ml of olive oil, and continued with the same olive oil as a source of raw fat (25ml/day) during 3 weeks. Prior to intervention a 1-week washout period with sunflower oil as the only source of fat was followed. During the 3 days before, and on the intervention day, a very low phenolic compound diet was followed. At baseline (0h), at post ingestion (6h), and at fasting state after 3 weeks of sustained consumption of olive oil total RNA was isolated from PBMC. Gene expression was evaluated by microarray and verified by qRT-PCR. Keywords: Olive oil, gene expression, single dose, sustained consumption Three pools of total RNA were prepared in triplicates (9 samples in total). Each pool refers to different time point of the study (0h-wash out, 6h postprandial and 3 weeks intervention). Pool at 0h serves as reference sample.

2010-05-26 | E-GEOD-10590 | biostudies-arrayexpress

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data