Browse
Submit Data
Databases
API
Help

Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Transcription profiling of rat heart from Lewis strain immunized with a peptide of human alpha1A-adrenergic receptor

ABSTRACT: Gene expression profiles in hearts of Lewis rats immunized with a peptide of human alpha1A-adrenergic receptor. The pathophysiological relevance of chronic autoantibodies against alpha-1A-adrenergic receptor stimulation in rats was investigated. Lewis rats were immunized using synthesized peptides of second extracellular loop of the human alpha-1A-adrenergic receptor and raised for one year. The gene expression in hearts of three immunized and three control rats were analyzed using Affymetrix Rat Genome 230 2.0 Arrays.

ORGANISM(S): Rattus norvegicus

SUBMITTER: Oliver Hummel

PROVIDER: E-TABM-725 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

ACCESS DATA

Json Xml

Publications

Alpha1A-adrenergic receptor-directed autoimmunity induces left ventricular damage and diastolic dysfunction in rats.

Wenzel Katrin K Wallukat Gerd G Qadri Fatimunnisa F Hubner Norbert N Schulz Herbert H Hummel Oliver O Herse Florian F Heuser Arnd A Fischer Robert R Heidecke Harald H Luft Friedrich C FC Muller Dominik N DN Dietz Rainer R Dechend Ralf R

PloS one 20100224 2

<h4>Background</h4>Agonistic autoantibodies to the alpha(1)-adrenergic receptor occur in nearly half of patients with refractory hypertension; however, their relevance is uncertain.<h4>Methods/principal findings</h4>We immunized Lewis rats with the second extracellular-loop peptides of the human alpha(1A)-adrenergic receptor and maintained them for one year. Alpha(1A)-adrenergic antibodies (alpha(1A)-AR-AB) were monitored with a neonatal cardiomyocyte contraction assay by ELISA, and by ERK1/2 ph ...[more]

PMID: 20195525

Similar Datasets

Gene expression profile of preclinical arthritis and its modulation by antigen-induced tolerance

Project description:During the course of adjuvant arthritis, maximal changes in gene expression were observed at the incubation phase. A major group of genes affected was related to immune activity. Tolerance induction by mycobacterial heat-shock protein 65 (Bhsp65), the disease-related antigen, caused upregulation of a large number of genes. These included immune activity genes as well as cell proliferation-related genes. We used microarrays to detail the global programme of gene expression underlying cellularisation and identified distinct classes of up-regulated genes during this process. The draining lymph node cells (LNC) were harvested from arthritic rats at different phases of adjuvant arthritis (incubation,peak and recovery). Also tested were LNC of naïve rats. LNC were tested ex vivo. Total RNA isolated from LNC was used for testing with affymetrix gene chip following manufacturer's instructions. Similarly, LNC of Bhsp65-tolerized rats harvested at incubation phase were tested with or without Bhsp65 restimulation in vitro. LNC of arthritic rats in incubation phase were similarly restimulated with Bhsp65 in vitro as controls, and the results compared with that of the tolerized rats.

2011-11-16 | E-GEOD-31314 | biostudies-arrayexpress

Transcription profiling of rat Lewis strain exposed to behavioural tests for sugar feeding, locomotor activity in a novel field, and acoustic startle reflex, and prepulse inhibition of the acoustic startle reflex to assess relationship between gene expression levels and behaviour in inbred animals

Project description:Behaviour is derived from complex molecular interactions within the brain, in response to specific environmental stimuli. In some rare cases, the direct causes of behaviour have been attributed to the interactions of a single or small group of gene transcripts and proteins. We conducted two experiments with the hope of defining some of the molecular interactors for four separate behaviours: sugar feeding, locomotor activity in a novel field, and acoustic startle reflex, and prepulse inhibition of the acoustic startle reflex, which have been linked to prefrontal cortex dopaminergic function or as predictors of sensorimotor gating in diseases such as schizophrenia. Rats with high and low response phenotypes were selected to determine the differences between these two extremes of behaviour. From our analyses, transcripts of Homer1, a neuronal scaffolding protein which interacts with group1 metabotropic glutamate receptors, were found to be significantly correlated with array data in both experiments, and with behaviour data across three separate tests in the second experiment, indicating that this gene's transcripts and probably downstream protein interactions have a significant correlation with behaviour phenotype in the inbred Lewis rat. Future areas of pursuit for this data should involve modification of the expression of Homer1 in an isolated fashion to determine a pharmacological threshold for differences in behaviour. This SuperSeries is composed of the following subset Series:; GSE14902: The relationship between brain mRNA levels and behaviour among inbred Lewis rats: Experiment 1; GSE14903: The relationship between brain mRNA levels and behaviour among inbred Lewis rats: Experiment 2 Experiment Overall Design: Refer to individual Series

2009-11-27 | E-GEOD-14904 | biostudies-arrayexpress

Transcription profiling of rat spinal cord with experimental autoimmune encephalomyelitis at 3 disease points, acute, relapsing and recovering vs. controls

Project description:The intention of the study was to examine the spinal cord gene expression at three different EAE disease points and to compare them with three nonimmunised, healthy rats. We immunised female DA rats with recombinant MOG-protein and sacrificed them during the acute phase of EAE defined as the first EAE attack leading to a clinical score of at least three, in the recovery phase in which the rats have begun to gain weight after the acute phase and in the relapsing phase - rats belonging to this group have been sacrificed while they were in the peak of the first relaps. Three healthy control rats, three from the acute phase of EAE (day 11 and 12 after EAE induction), three from the recovery phase (day 13 and 14 after EAE induction) and four rats from the relapsing phase (day 24 and 25 after EAE induction) have been finally sacrificed for the study.

2007-05-15 | E-MEXP-1025 | biostudies-arrayexpress

Mammary Gland Morphological and Gene Expression Changes Underlying Pregnancy Protection of Breast Cancer Tumorigenesis

Project description:Pregnancy has been shown to decrease the risk of mammary carcinogenesis in human rretrospective epidemiological studies. In rodents, pregnancy prior to carcinogen administration or after carcinogen challenge has also been shown to reduce the incidence of palpable carcinomas. In this study our objective to determine the underlying genomic signature of the pregnancy and reproductive hormones on the mammary gland that contribute to the protection against mammary gland carcinogenesis. We used the rat microarray technology to observe total transcriptome changes after the pregnancy and exogenous reproductive hormone stimulation of the mammary gland. Fifteen 3 month old post-pubertal virgin Lewis rats were randomly assigned to three groups (5 rats per group): control (C), pregnancy (P) and hormone treatment (H). The P group animals had a full-term pregnancy (21-23 days) and rats in the group H were implanted subcutaneously on the dorsal midline with two silastic capsules [(0.078 inch inner diameter, 0.125 inch outer diameter) x 2 cm long; Dow Corning, Midland, MI) filled separately with 100 μg ethynyl estradiol (Sigma, St. Louis, MO) packed in a cellulose matrix (Sigma) and 30 mg of megesterol acetate (Sigma) for 21 days. The control animals had neither the hormone treatment nor being pregnant. The animals in C and P groups were also implanted with sham capsules filled with cellulose matrix only. The capsules were surgically implanted at the beginning of the experiment and removed from all animals after 21 days except that the capsules were removed from the P group following parturition (21-23 days). The delivered pups in the P group were euthanized within 4-6 hours of delivery to avoid suckling. After the removal of capsules all groups were rested a total of ~49 days before euthanasia. All animals were euthanized during metestrus stage, determined by vaginal cytology and total RNA was extracted from the mammary gland tissues using Trizol reagent.

2011-09-14 | E-GEOD-32125 | biostudies-arrayexpress

Transcription profiling of mammary glands from virgin or parous Lewis strain rats

Project description:Independent Lewis rat data used to confirm the finding of the main experiment "Protection against Mammary Tumorigenesis in Multiple Rat Strains (experiment E-TABM-197: https://www.ebi.ac.uk/arrayexpress/experiments/E-TABM-197).

2007-01-31 | E-TABM-198 | biostudies-arrayexpress

Transcription profiling of Dahl salt-sensitive and salt-resistant congenic rats

Project description:Kidney samples from three Dahl Salt-sensitive S rats were compared with kidney samples from three S.R(9)x3A congenic rats.

2007-09-13 | E-GEOD-1775 | biostudies-arrayexpress

Rat atria-2D LC-MS/MS - Atrial electrophysiological and molecular remodelling induced by obstructive sleep apnoea

Project description:To understand the molecular change occurring in the atria during obstructive sleep apnea, we have implemented a rat model of OSA involving the surgical implantation of a tracheal obstructive device, allowing the rats to remain conscious and free-roaming throughout 2 weeks of apnea administration. Rats were divided into severe and moderate apnea groups, receiving a 23 second or 13 second apneas per minute, respectively. The two-dimensional polyacrylamide gel electrophoresis (2D PAGE) of atrial homogenates to compare the dysregulations in the protein pattern in severe and moderate apnea when compared to control.

2019-02-21 | PXD011181 | Pride

Transcription profiling by array of rat macrophages from WKY/NCrl and LEW/Crl strains to determine susceptibility to glomerulonephritis

Project description:The Wistar-Kyoto (WKY) rat shows marked susceptibility to crescentic glomerulonephritis, while Lewis rats are resistant. Glomerular injury and crescent formation are macrophage-dependent. The aim of this study is to use gene expression profiling to identify genetic factors that determine macrophage activation and render WKY rats susceptibile to glomerulonephritis.

2011-03-17 | E-MEXP-2624 | biostudies-arrayexpress

Leukocyte accumulation in graft blood vessels during self-limiting acute rejection of rat kidneys Immunobiology

Project description:Acute rejection episodes trigger chronic renal allograft vasculopathy. Numerous leukocytes, predominantly monocytes, accumulate in graft blood vessels during reversible acute rejection preceding chronic rejection of rat kidneys. We speculate that they contribute to transplant vasculopathy and set out to characterize them. Allogeneic renal transplantation was performed in the Fischer 344 to Lewis rat strain combination, Lewis isografts served as controls. Leukocytes were harvested by intensive perfusion of graft blood vessels and subjected to flow cytometry, quantitative RT-PCR and genome-wide transcriptional profiling. Kidneys of LEW and F344 rats were transplanted in LEW rats. Five biological replicates were performed for both isogenic and allogenic transplantation. Transcriptomes of allogenics were compared to isogenics on 5 dual-color hybridizations.

2010-09-24 | E-GEOD-18266 | biostudies-arrayexpress

Transcription profiling of mouse brain to correlate mRNA levels and behaviour among inbred Lewis rats: Experiment 1

Project description:Behaviour is derived from complex molecular interactions within the brain, in response to specific environmental stimuli. In some rare cases, the direct causes of behaviour have been attributed to the interactions of a single or small group of gene transcripts and proteins. We conducted two experiments with the hope of defining some of the molecular interactors for four separate behaviours: sugar feeding, locomotor activity in a novel field, and acoustic startle reflex, and prepulse inhibition of the acoustic startle reflex, which have been linked to prefrontal cortex dopaminergic function or as predictors of sensorimotor gating in diseases such as schizophrenia. Rats with high and low response phenotypes were selected to determine the differences between these two extremes of behaviour. From our analyses, transcripts of Homer1, a neuronal scaffolding protein which interacts with group1 metabotropic glutamate receptors, were found to be significantly correlated with array data in both experiments, and with behaviour data across three separate tests in the second experiment, indicating that this gene's transcripts and probably downstream protein interactions have a significant correlation with behaviour phenotype in the inbred Lewis rat. Future areas of pursuit for this data should involve modification of the expression of Homer1 in an isolated fashion to determine a pharmacological threshold for differences in behaviour. Experiment Overall Design: Nine rats with varying behavioural phenotypes were analyzed. Three behavioural tests: SF, locomotion, and ASR.

2009-11-28 | E-GEOD-14902 | 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