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The effect of XUESAITONG on gene expression profile after focal cerebral ischemia in rats

ABSTRACT: Xuesaitong injection (XST), a standardized patent Chinese medicine of Panax notoginseng roots (Sanqi in Chinese), has long been used for effective prevention and treatment of stroke in China. However, the mechanisms underlying its effects against ischemic stroke are still poorly understood. In this study, we focused on the polypharmacology of XST against ischemic stroke with a XST-regulated stroke network analysis. Male Sprague Dawley rat model of MCAO and reperfusion were administered XST for 7 days while the control group was not treated.

ORGANISM(S): Rattus norvegicus

PROVIDER: GSE61616 | GEO | 2014/09/23

SECONDARY ACCESSION(S): PRJNA261695

REPOSITORIES: GEO

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The effect of XUESAITONG on gene expression profile after focal cerebral ischemia in rats

Project description:Xuesaitong injection (XST), a standardized patent Chinese medicine of Panax notoginseng roots (Sanqi in Chinese), has long been used for effective prevention and treatment of stroke in China. However, the mechanisms underlying its effects against ischemic stroke are still poorly understood. In this study, we focused on the polypharmacology of XST against ischemic stroke with a XST-regulated stroke network analysis. Male Sprague Dawley rat model of MCAO and reperfusion were administered XST for 7 days while the control group was not treated. Three conditions were compared with three replicates each. These are: (1) sham; (2) model (3) XST treatment. Whole genome microarray analysis was performed using Affymetrix rat Genome 230 2.0 chips.

2014-09-23 | E-GEOD-61616 | biostudies-arrayexpress

Effect of Panax Notoginseng on gene expression in rats with cerebral ischemia-reperfusion injury

Project description:Methods: Panax notoginseng was used to treat MCAO model rats, and the differentially expressed genes between Panax notoginseng group and model group were identified by RNA SEQ, and the possible mechanism of Panax notoginseng in regulating ischemic stroke was analyzed

2020-09-13 | GSE154098 | GEO

Effect of transient focal ischemia on circular RNAs

Project description:To investigate the potential involvement of circRNA in ischemic pathophysiology, we performed a circRNA microarray in an established transient middle cerebral artery occlusion (MCAO) mouse model of stroke. We evaluated the expression of 1797 circRNAs in adult mice brain after tMCAO. In our study, 5 of the 1178 circRNAs analyzed in the circRNA array were up-regulated significantly, ≥1.5-fold, in ischemic cortex at 12 hours of reperfusion after MCAO compared with their levels in sham group.

2020-09-25 | GSE115697 | GEO

Proteomic analysis of focal cerebral ischemia/reperfusion injury in rats

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.

2019-07-03 | PXD012151 | Pride

Transcription profiling of rats treated with transient focal ischemia

Project description:Large clinical studies have shown that AT1 receptor blockers (ARBs) reduce the incidence of stroke in patients at risk. However, there is controversy about the underlying pathomechanisms. To get a closer insight into the effects of ARBs in stroke on molecular level, gene expression pattern was compared in the ischemic brain areas of Candesartan pre-treated (0,2 mg/kg bwt., 5 days, s.c.) versus vehicle treated, normotensive, adult rats after middle carotid artery occlusion (MCAO). Candesartan significantly improved neurological outcome (as estimated by Garcia-scale) 24 h and 48 h after stroke and reduced infarct volume by about 40% compared to vehicle. Experiment Overall Design: For gene expression profiling, RNA of two animals per group was pooled and forwarded to preparation of the labeled targets for the micro array experiment. For each biological condition two independent pools were hybridised onto Affymetrix RAE 230A arrays.

2008-06-12 | E-GEOD-4206 | biostudies-arrayexpress

Nitrate fertilizer alleviates ammonium toxicity by enhancing ACLA-3 in Panax notoginseng roots

Project description:Nitrogen is one of the essential elements for plant growth. NH4+ and NO3- are two major forms of absorbing element N for higher plants. In this study we found that the growth of Panax notoginseng is inhibited when only adding ammonium nitrogen fertilizer, and adding nitrate fertilizer can alleviate the toxicity caused by ammonium. We use RNA-seq to identify genes that are related to the alleviated phenotypes after introducing NO3- to Panax notoginseng roots under NH4+ stresses. Twelve RNA-seq profiles in four sample groups, i.e., control, samples treated with NH4+, samples treated with NO3- only, and treated with both NH4+ and NO3- were obtained and analyzed to identify deregulated genes in samples with different treatments. ACLA-3 gene is downregulated in NH4+ treated samples, but is upregulated in samples treated with NO3- and with both NH4+ and NO3-, which is further validated in another set of samples using qRT-PCR. Our results suggest that unbalanced metabolism of nitrogen and nitrogen is the main cause of ammonium poisoning in roots of Panax notoginseng, and NO3- may significantly upregulate the activity of ACLA-3 which subsequently enhances the citrate cycle and many other metabolic pathways in Panax notoginseng root. These potentially increase the integrity of the Panax notoginseng roots. Our results suggest that introducing NO3- fertilizer is an effective means to prevent the occurrence of toxic ammonium in Panax notoginseng root.

2019-12-31 | GSE112437 | GEO

Transcriptome analysis reveals intermittent fasting-induced genetic changes in ischemic stroke

Project description:Intermittent fasting is previously reported to exhibit neuroprotection against experimental ischemic stroke. However, the detailed understanding of protection mechanisms are lacking. By observing the overall transcriptomic changes in each timepoint of ischemic stroke would benefit the understanding of underlying active pathways and mechanisms. Here, we conduct experimental MCAO ischemic stroke on mice exposed to different daily intermittent fasting method to compare not only among the ischemic stroke timepoints but also the efficacy of different intermittent fasting interventions. Our current study presented the transcriptomic changes for the first time in specific timepoints of ischemic stroke as well as under the condition of intermittent fasting. A number of neuroprotective mechanisms-related genes were significantly affected by intermittent fasting conditions in differential manners.

2018-07-11 | GSE116878 | GEO

RNA illumina sequencing of Panax notoginseng under CK and Cd stress treatment

Project description:The total RNA were extracted from tissues of roots from several plants of Panax notoginseng under CK and Cd stress treatment by using TRIzol reagent (Invitrogen) according to the manufacturer's instructions. The purified PCR product was sequenced using Illumina Genome Analyzer II. The qualified reads were used to study of Panax notoginseng transcriptome under CK and Cd stress treatment.

2019-12-31 | GSE108698 | GEO

Reduced inflammatory response under candesartan pre-treatment following transient focal ischemia in rats

2006-12-31 | GSE4206 | GEO

Expression data from rat (Sprague Dawley) brain subjected to MCAo.

Project description:Middle cerebral artery occlusion (MCAo) in rat represent the ischemic stroke in human. Rodents subjected to MCAo and treated with venom phospholipase A2 showed reduction in infarct volume after 24hours of stroke. We studied the global gene expression of the reduction in infarct volume using Affymetrix Gene Chips. We analysed all the genes that were up or down regulated in the study. Total RNA isolated from sham, MCAo and MCAo+nPLA rat brains, was pooled to minimize inter-individual variation and hybridized to each array of the RAE-230A or U34A GeneChipTM according to protocols described in the GeneChipTM expression analysis package (Affymetrix, CA).

2009-09-04 | E-GEOD-17929 | biostudies-arrayexpress

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