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Murine Kidney cells: Control versus Ischemia reperfusion injury

ABSTRACT: miRNA profiling of kidney tissue from C57BL/6 mice that received a 30 minute ischemic injury compared with control kidney tissue from mice that received sham operation only.

ORGANISM(S): Mus musculus

PROVIDER: GSE29495 | GEO | 2011/08/01

SECONDARY ACCESSION(S): PRJNA141659

REPOSITORIES: GEO

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Murine Kidney cells: Control versus Ischemia reperfusion injury

Project description:miRNA profiling of kidney tissue from C57BL/6 mice that received a 30 minute ischemic injury compared with control kidney tissue from mice that received sham operation only. Two condition experiment - sham and ishemic injury (IRI). Eight time points were measured using pooled samples from three mice.

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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.

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No safe renal warm ischemia time-The molecular network characteristics and pathological features of mild to severe ischemia reperfusion kidney injury

Project description:Purpose: we performed comparative RNA-seq analyses to identify molecular network characteristics of kidney injury at different ischemia times Methods: Unilateral clamping of the left renal pedicle plus contralateral nephrectomy was performed. Briefly, mice were anesthetized, right kidney was excised. The left kidney was clamped for indicated minutes (0min for sham-24h group, 16min for uIRIx16min-24h group, 18minfor uIRIx18min-24h group, 20min for uIRIx20min-24h group, 22min for uIRIx22min-24h group, 24min for uIRIx24min-24h group, 26min for uIRIx26min-24h group, 28min for uIRIx28min-24h group, 30min for uIRIx30min-24h group). Mice were placed on 37°C heating platform while operation, ischemia and before awakening. At 24h after ischemia, mice were anesthetized and blood was taken to detect creatinine, kidney was harvest for PAS staining and mRNA seq. Results: After sequence, the clean reads rate of all samples were ≥98%.The quality of the assembled transcriptome is good enough for functional annotation and further analysis. Conclusions: We performed RNA-sequencing (RNA-Seq) analyses to identify molecular network characteristics of kidney injury at different ischemia time.

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Project description:Hearts received a sham or an I/R surgery. After indicated timepoints, the infarct region was isolated and used for RNA sequencing

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Project description:Stroke is a leading cause of mortality and long-term disability and ischemic stroke accounts for 87% of all strokes. Though timely recanalization of the occluded vessel is essential in the treatment of ischemic stroke, it is well known to cause ischemia-reperfusion (I/R) injury which result in neuronal cell death, brain tissue loss and severe neurological deficits. In this work, we employed a global proteomic approach to examine the changes of cerebral cortex proteins in rats undergoing acute and long-term I/R injury. In vivo middle cerebral artery occlusion (MCAO) model of focal cerebral I/R injury in rats was established. The animals were divided into three model groups with 2 h-MCAO followed with different reperfusion time, 1 day, 7 days and 14 days, respectively. For each model group a sham group was correspondingly set. Each group included four animals. For proteomic analysis, cerebral cortex proteins were extracted and analyzed by SDS-PAGE, whole-lane slicing, in-gel digestion and label-free quantitative LC-MS/MS. A total of 5621 proteins were identified and their quantities between the surgery and corresponding sham groups and across the three reperfusion time points were compared for mechanism investigation. This dataset includes all the raw files of the 840 LC-MS runs (6 groups x 4 animals x 35 gel squares/sample), as well as their identification and quantitation results at the levels of peptide fragments, peptides and proteins, respectively.

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