Browse
Submit Data
Databases
API
Help

Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

RNA expression analysis in a multigeneration feeding study of OF1 outbred mice

ABSTRACT: To analyze the effect of different aliments, male OF1 mice were fed ad libitum with a custom-made diet containing 33% maize derived from three cultivars containing comparable nutritional values for multiple generations. To evaluate possible effects on the gene expression in the small intestine, the jejunum of nine randomly chosen males of the F3 was sampled at the age of 7 weeks. Note that the lack of information on the time of sampling or its randomization between the experimental groups limited the value of the internal microarray data set for the context originally addressed (diet). 3 feed groups, 3 replicates per group

ORGANISM(S): Mus musculus

SUBMITTER: Karin Wagner

PROVIDER: E-GEOD-44396 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

ACCESS DATA

Json Xml

Similar Datasets

Human osteosarcoma cells respond to sorafenib chemotherapy by downregulation of the tumor progression factors S100A4, CXCR4 and the oncogene FOS

Project description:Osteosarcoma is a rare but aggressive bone neoplasm in humans, which is commonly treated with surgery, classical chemotherapy and radiation. Here, we studied the antimetastatic potential of 4 M-NM-<M of the multikinase inhibitor Sorafenib in a human osteosarcoma cell line using DNA microarray-based gene expression profiling. 3 untreated replicates of human osteosarcoma cells (ATCC CRL-1543M-bM-^DM-"), 3 replicates of human osteosarcoma cells (ATCC CRL-1543M-bM-^DM-") treated with 4 M-BM-5M Sorafenib

2013-12-13 | E-GEOD-53155 | biostudies-arrayexpress

Gene Profiling in the Livers of Wild-Type and PPARalpha-Null Mice Exposed to Perfluorooctanoic Acid (PFOA)

Project description:Unlike the PPARalpha agonist W14,643, PFOA is capable of inducing effects independently of PPARa. Genes altered in the PPARalpha-null mouse following exposure to PFOA included those associated with fatty acid metabolism, inflammation, xenobiotic metabolism, and cell cycle progression. The specific signaling pathway(s) responsible for these effects is not readily apparent but it is conceivable that other members of the nuclear receptor superfamily such as PPARbeta/delta and CAR may be involved. Keywords: dose response Wild-type and PPARa-null mice were orally dosed for 7 days with either PFOA (1 or 3 mg/kg), the PPARalpha agonist WY-14,643 (50 mg/kg), or compound vehicle. Gene profiling analysis was conducted on 4 animals per group using Applied Biosystems Mouse Genome Survey Microarrays.

2008-05-22 | E-GEOD-9796 | biostudies-arrayexpress

Transcriptional profiling by array of mouse main branch pulmonary artery to study the differences between wild type and miR-145 KO mice exposed to normoxic or hypoxic conditions

Project description:Hypoxia is used as a model for pulmonary arterial hypertension. MiR-145 is upregulated in pulmonary arterial hypertension in humans and female mice. It has been observed that miR-145 knock out mice have reduced vascular remodelling in response to hypoxia. Therefore, knock down of miR-145 could be used as a therapy for pulmonary arterial hypertension in humans. This microarray has helped us to elucidate some of the pathways in the miR-145 knock out mice that may protect against vascular remodelling. Wild type (WT) mice and homozygous miR-145 -/- female mice (strain C57BL6J/129SVEV) at 8 weeks old were exposed to chronic hypoxia for 2 weeks or maintained in normoxic conditions and pulmonary arteries were dissected at 10 weeks of age. This study contained 4 groups, WT hypoxic, WT normoxic, miR-145 -/-, hypoxic miR-145 -/- normoxic each containing 6 animals. All adjacent comparisons were made to ananlyse the data (a 2 by 2 design).

2012-05-15 | E-MTAB-885 | biostudies-arrayexpress

TAF6 orchestrates transcription programs and apoptosis in the absence of p53

Project description:The decision of metazoan cells to live or undergo programmed cell death hinges on the balance between the levels of pro- versus anti-apoptotic gene products. The general RNA polymerase II (Pol II) transcription factor, TFIID, plays a central role in the regulation of gene expression through its core promoter recognition and co-activator functions. The core TFIID subunit TAF6 is a co-activator for the pro-apoptotic p53 tumour suppressor protein. Our previous studies identified a specialized isoform of TAF6, termed TAF6 that can specifically be induced in apoptosis. To elucidate the impact of TAF6 on gene expression and cell death, we employed modified antisense oligonucleotides to enforce expression of endogenous TAF6. The induction of endogenous TAF6 triggered apoptosis in several cancer cell lines. Importantly, TAF6 also induces apoptosis in tumor cell lines devoid of p53, placing TAF6 function downstream of p53. Microarray experiments uncovered a TAF6-induced transcriptome landscape displaying enhanced expression of genes of the Notch, oxidative stress, integrin, p53 and apoptosis pathways. Our data show that the TAF6 pathway is a pivotal signalling nexus that controls pro-apoptotic gene expression programs. Keywords: Treatment with splice site switching antisense oligonucleotides, induction of apoptosis Biological triplicates, 3 conditions: control oligonucleotide, Taf6 oligonucleotide, specificity control Bcl-x oligonucleotide

2010-11-27 | E-GEOD-8752 | biostudies-arrayexpress

Determining the impact of alternative splicing events on transcriptome dynamics

Project description:Background The complete sequencing of the human genome and its subsequent analysis revealed a predominant role for alternative splicing in the generation of proteome diversity. Splice switching oligonucleotides (SSOs) are a powerful and specific tool to experimentally control alternative splicing of endogenous messenger RNAs in living cells. SSOs also have therapeutic potential to treat diseases that are caused by aberrant splicing. The assignment of biological roles to alternative splicing events of currently unknown function promises to provide a largely untapped source of potential new therapeutic targets. Here we have developed a protocol that combines high sensitivity microarrays with the transfection of SSOs to monitor global changes in gene expression downstream of alternate, endogenous splice events. Findings When applied to a well-characterized splicing event in the Bcl-x gene, the application of high sensitivity microarrays revealed a link between the induction of the Bcl-xS isoform and the repression of genes involved in protein synthesis. Conclusions The strategy introduced herein provides a useful approach to define the biological impact of any given alternative splicing event on global gene expression patterns. Furthermore, our data provide the first link between Bcl-xS expression and the repression of ribosomal protein gene expression. Biological triplicates, 2 conditions: control oligonucleotide, Bcl-x oligonucleotide

2008-10-02 | E-GEOD-9851 | biostudies-arrayexpress

Fine-mapping of DNA modifications in the lactase gene region of humans and mice

Project description:Bisulfite padlock probe technique was used to examine DNA modifications at the lactase gene region for human and mouse tissues DNA modifications were investigated in human sperm, blood, jejunal enterocytes and jejunum lacking enterocytes, as well as mouse jejunal enterocytes and jejunum lacking enterocytes. For WGA samples, a genome devoid of DNA modifications was used to verify the efficiency of the bisulfite conversion reactions (the tissue sources were human or mouse intestine).

2016-03-25 | E-GEOD-69977 | biostudies-arrayexpress

Changes in DNA methylation In cultered WI-38 cells over passages

Project description:We used Illumina infinium methylation array analysis to document spontaneous DNA methylation changes in human fibroblasts growing in long term culture. Starting with a culture derived from a single cell we compared the methylation profile of late passage clones with that of the initial culture, allowing unambiguous identification of methylation changes. Bisulphite converted DNA from the 5 samples were hybridised to the Illumina Infinium 27k Human Methylation Beadchip v1.2

2011-10-31 | E-GEOD-30640 | biostudies-arrayexpress

Epigenetics of lactose intolerance and lactase persistence

Project description:This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

2016-03-25 | E-GEOD-69979 | biostudies-arrayexpress

Spatial Transcriptomics of ageing mouse liver tissues give insights into the zonation-specific lipid deposition

Project description:To gain in situ information on the transcriptional profile of the different zones upon ageing, we used the 10X Genomics Visium Platform and ran 5µm tissue cryosections from livers of 2 young and 2 old mice. We investigated the transcriptional events that differentiate lipid metabolism in ageing, across the different zones of the liver tissue.

2023-11-09 | E-MTAB-12809 | biostudies-arrayexpress

Gut Microbiome LC-MS

Project description:Gut microbiota has profound effects on obesity and associated metabolic disorders. Targeting and shaping the gut microbiota via dietary intervention using probiotics, prebiotics and synbiotics can be effective in obesity management. Despite the well-known association between gut microbiota and obesity, the microbial alternations by synbiotics intervention, especially at the functional level, are still not characterized. In this study, we investigated the effects of synbiotics on high fat diet (HFD)-induced metabolic disorders, and systematically profiled the microbial profile at both the phylogenetic and functional levels. Synbiotics significantly reversed the HFD-induced change of microbial populations at the levels of richness, taxa and OTUs. Potentially important species Faecalibaculum rodentium and Alistipes putredinis that might mediate the beneficial effects of synbiotics were identified. At the functional level, short chain fatty acid and bile acid profiles revealed that interventions significantly restored cecal levels of acetate, propionate, and butyrate, and synbiotics reduced the elevated total bile acid level. Metaproteomics revealed the effect of synbiotics might be mediated through pathways involved in carbohydrate, amino acid, and energy metabolisms, replication and repair, etc. These results suggested that dietary intervention using our novel synbiotics alleviated HFD-induced weight gain and restored microbial ecosystem homeostasis phylogenetically and functionally.

2022-02-22 | PXD009564 | Pride

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