Expression data from mouse tissue Angiotensin II treated for 0, 1, 3, 7 days
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PROVIDER: PRJNA414714 | ENA |
REPOSITORIES: ENA
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Project description:Angiotensin II (Ang II) mediated signaling plays a key role in the development of hypertension associated target organ damages. However, the gene expression changes regulated by Ang II in the early stage of acute cerebral, cardiac, renal, vascular injury remain unclear. we investigated Ang II–mediated gene expression alteration associated with the development of early cerebral, cardiac, renal, vascular injury by microarray assay in a mouse model.
2017-10-19 | GSE105114 | GEO
Project description:Angiotensin II (Ang II) mediated signaling plays a key role in the development of hypertension associated target organ damages. However, the gene expression changes regulated by Ang II in the early stage of acute cerebral, cardiac, renal, vascular injury remain unclear. we investigated Ang IIâ??mediated gene expression alteration associated with the development of early cerebral, cardiac, renal, vascular injury by microarray assay in a mouse model. All mice were euthanized by an overdose of pentobarbital on days 1, 3 and 7 of Angiotensin II treatment. Total RNA was isolated with TRIzol (Invitrogen) from brains, hearts, kidneys and vessels (n=1-3 per group) at each time point according to manufacturerâ??s instructions. Gene expression profiling was performed using Affymetrix GeneChip mouse Genome 430 2.0 array according to the manufacturerâ??s instructions (Affymetrix, Inc., Santa Clara, CA). On the GeneChip Mouse Genome 430 2.0 Array, over 45,000 probe sets analyze the expression level of over 39,000 transcripts and variants from over 34,000 well characterized mouse genes.
2014-07-16 | E-GEOD-59437 | biostudies-arrayexpress
Project description:Angiotensin II (Ang II) mediated signaling plays a key role in the development of hypertension associated target organ damages. However, the gene expression changes regulated by Ang II in the early stage of acute cerebral, cardiac, renal, vascular injury remain unclear. we investigated Ang II–mediated gene expression alteration associated with the development of early cerebral, cardiac, renal, vascular injury by microarray assay in a mouse model.
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Project description:We use next-generation sequencing (NGS) to profile miRNA in small arteries of mice infused with angiotensin (Ang) II for 7 and 14 days. The goal is to identify differentially expressed miRNAs that are associated with Ang II-induced vascular injury and hypertension.
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Project description:In order to characterize gene expression networks linked to AT1 angiotensin receptors in the kidney, we carried out genome-wide transcriptional analysis of RNA from kidneys of wild-type (WT) and AT1A receptor-deficient mice (KOs) at baseline and after 2 days of angiotensin II infusion (1 ug/kg/min), using Affymetrix GeneChip Mouse Genome 430 2.0 Arrays. At baseline, 405 genes were differentially expressed (>1.5X) between WT and KO kidneys. Of these, more than 80% were up-regulated in the KO group including genes involved in inflammation, oxidative stress, and cell proliferation. After 2 days of angiotensin II infusion in WT mice, expression of ~805 genes was altered (18% up-regulated, 82% repressed). Genes in metabolism and ion transport pathways were up-regulated while there was attenuated expression of protective genes against oxidative stress including glutathione synthetase and mitochondrial SOD2. Angiotensin II infusion has little effect on blood pressure in KOs. Nonetheless, expression of more than 250 genes was altered in kidneys from KO mice during angiotensin II infusion; 14% were up-regulated, while 86% were repressed including genes involved in immune responses, angiogenesis, and glutathione metabolism. Between WT and KO kidneys during angiotensin II infusion, 728 genes were differentially expressed; 10% were increased and 90% were decreased in the WT group. Differentially regulated pathways included those involved in ion transport, immune responses, metabolism, apoptosis, cell proliferation, and oxidative stress. This genome-wide assessment should facilitate identification of critical distal pathways linked to blood pressure regulation. To define gene expression patterns in kidney triggered by of activation AT1 receptors, we used genome-wide transcriptional analysis of RNA from kidneys of wild-type and AT1A receptor-deficient mice at baseline and after 2 days of angiotensin II infusion (1 ug/kg/min), using Affymetrix GeneChip Mouse Genome 430 2.0 Arrays. All of the experiments were conducted with male mice 2.5 months old and included 3 mice per experimental group. Synthesis of cRNA, hybridization and scanning of chips were conducted by Duke University microarray core facility (Duke University, Durham, NC).
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