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Gene expression data from remote ischemic postconditioning in rat model of ischemia reperfusion injury

ABSTRACT: Gene expression data from remote ischemic postconditioning in rat model of ischemia reperfusion injury

PROVIDER: PRJNA503174 | ENA |

REPOSITORIES: ENA

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Gene expression data from remote ischemic postconditioning in rat model of ischemia reperfusion injury

Project description:Restoration of blood flow is the definitive therapy to salvage myocardium following ischemic injury. However, sudden restoration of blood flow to the ischemic myocardium causes ischemia reperfusion injury (IRI). Here, the cardioprotective effect of remote ischemic postconditioning (RPostC) was investigated, based on our in vitro rat model of myocardial IRI. Three groups, including Sham, IRI, and IRI+ RPostC, were utilized for the analysis of Affymetrix Rat Gene 2.0 ST chip.

2019-05-15 | GSE122020 | GEO

The analysis of differential gene expression after remote ischemic preconditioning of renal ischemia reperfusion injury

Project description:To investigate the mechanism by which ischemic preconditioning (IPC) produces tissue tolerance to renal ischemia reperfusion injury in a pig model 15 female Yorkshire pigs were divided into three groups: 1: no IPC and 90 minutes warm ischemia; 2: remote IPC with an early window followed by 90 min warm ischemia; 3: remote IPC with a late window followed by warm ischemia 24 hrs later. Kidney tissues were obtained after 72 hours.

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Ischemic Pre- and Post Conditioning has pronounced effects on Gene Expression Profiles in the Rat Liver after Ischemia/Reperfusion

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Ischemic Pre- and Post Conditioning has pronounced effects on Gene Expression Profiles in the Rat Liver after Ischemia/Reperfusion

Project description:Ischemia/reperfusion injuries is a known complication to hepatic surgery. Ischemic pre- (IPC) and postconditioning (IPO) protects the liver against ischemia/reperfusion-injuries. Expression profiling were performed on liver biopsies seeking to identify molecular mediators of the protective properties. 48 rats were divided into 5 groups; sham (n=8), IRI (n=10), IPC (n=10), IPO (n=10) and IPC+IPO (n=10). All rats except sham rats were subjected to 30 min of total liver ischemia and 30 min of reperfusion before liver biopsies were sampled. In the IPC group, liver ischemia was preceded by 10 min of hepatic ischemia, followed by 10 min of reperfusion. IPO were performed by three cycles of 30 sec of reperfusion and 30 sec of ischemia, applied immediately after the 30 min of total liver ischemia. In the IPC+IPO group the two interventions were combined.

2011-09-30 | E-GEOD-24430 | biostudies-arrayexpress

Differential analysis of transcriptomes regulated upon ischemic preconditioning and postconditioning versus ischemia-reperfusion protocols in the mouse heart in vivo

Project description:Ischemic preconditioning (PreC) and postconditioning (PostC) are the most potent cardioprotective strategies inhibiting ischemia-reperfusion (IR) injuries.The aim of our study was to identify the gene profiles regulated upon preconditioning and postconditioning in the mouse heart in vivo.

2012-01-06 | GSE31296 | GEO

small RNA-Seq of rat kidney in a model of ischemic preconditioning/ischemia-reperfusion injury

Project description:Ischemic preconditioning is effective in limiting subsequent ischemic acute kidney injury in experimental models. microRNAs are an important class of post-transcriptional regulator and show promise as biomarkers of kidney injury. An evaluation was performed of the time- and dose-dependent effects of ischemic preconditioning in a rat model of functional (bilateral) ischemia-reperfusion injury. A short, repetitive sequence of ischemic preconditioning resulted in optimal protection from subsequent ischemia-reperfusion injury. A detailed characterization of microRNA expression in ischemic preconditioning/ischemia-reperfusion injury was performed by small RNA-Seq.

2021-12-31 | E-MTAB-9896 | biostudies-arrayexpress

Exiqon miRCURY microRNA array of rat kidney in a model of ischemic preconditioning/ischemia-reperfusion injury

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The analysis of differential gene expression after remote ischemic preconditioning of renal ischemia reperfusion injury

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Rat liver tissue: IR vs. iPoC

Project description:microRNAs expression of rat liver tissue comparing ischemia-reperfusion (IR) group with ischemic postconditioning(iPoC) group

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Gene expression changes in the periventricular white matter of neonatal piglets at a defined 48h time point following a hypoxic-ischemic insult: a comparison of piglets left untreated and those treated with a remote post-conditioning stimulus applied to the hind leg immediately after the insult.

Project description:Remote ischemic postconditioning (RIPostC) is a promising therapeutic intervention whereby brief episodes of ischemia/reperfusion of one organ (limb) mitigate damage in another organ (brain) that has experienced severe hypoxia-ischemia. 16 Large White newborn female piglets were exposed to a tightly controlled hypoxic-ischemic insult using magnetic resonance spectroscopy (MRS) biomarkers. After hypoxia-ischemia (HI), piglets were randomized to: (i) no intervention (nâ=â8); (ii) RIPostC â with four, 10-min cycles of bilateral lower limb ischemia/reperfusion immediately after HI (nâ=â8). Piglets in the remote post-conditioned group exhibited a reduction in white matter proton MRS lactate/N acetyl aspartate and increased whole brain phosphorus-31 MRS ATP over the 48âh after hypoxia-ischemia. Cell death (apoptosis) was reduced with RIPostC in the periventricular white matter, internal capsule and corpus callosum. There was also reduced microglial activation in corpus callosum and more surviving oligodendrocytes in corpus callosum and periventricular white matter. Our results demonstrate changes in the expression of 74 genes in the periventricular white matter 63 were down regulated and 11 were upregulated, that accompany the reductions in cell death and microglial activation seen following a remote post conditioning stimulus at a single 48h time point. (significance was calculated at p<0.05, one way ANOVA, Mann-Whitney unpaired, noe were found to be significant following a Benjamini-Hochberg FDR multipe testing correction). Many of these genes are thought to be important for the mediation of the neuroprotective effects of post-conditioning which suggests its genomic effects may persist for 48h. A full description of this work can be accessed at doi: 10.1177/0271678X15608862.

2016-09-21 | E-MTAB-5125 | biostudies-arrayexpress

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