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Effects of Buyang Huanwu Decoction on circRNA-miRNA-mRNA transcriptional network of rats with cerebral ischemia

ABSTRACT: Effects of Buyang Huanwu Decoction on circRNA-miRNA-mRNA transcriptional network of rats with cerebral ischemia

PROVIDER: PRJNA738957 | ENA |

REPOSITORIES: ENA

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Effects of Buyang Huanwu Decoction on circRNA-miRNA-mRNA transcriptional network of rats with cerebral ischemia

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Genome-wide identification of m6A-related transcriptional profiles in cortex of rats with cerebral ischemia-reperfusion and intervention of Buyang Huanwu Decoction

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Exploring the effect of XingNaoKaiQiao acupuncture stimulation in rats with cerebral ischemia injury

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Therapeutic Effect of Buyang Huanwu Decoction on the Gut Microbiota and Hippocampal Metabolism in a Rat Model of Cerebral Ischemia

Project description:<p>Buyang Huanwu decoction (BHD) is a well-known Chinese herbal prescription. It has been widely used in the clinical treatment of cerebral ischemia (CI) in China. However, the mechanism underlying the treatment of CI with BHD remains to be elucidated. In this study, we combined microbiomic and metabolomic strategies to explore the therapeutic effects of BHD on middle cerebral artery occlusion (MCAO) in rats. Our results showed that BHD could effectively improve neurological severity scores and alleviate neuronal damage in rats with MCAO. BHD could also reduce the level of peripheral proinflammatory cytokines and inhibit neuroinflammation. 16S rRNA sequencing showed that BHD could increase the relative abundances of the genera Lactobacillus, Faecalibacterium, Ruminococcaceae_UCG-002, etc., while decreasing the relative abundances of the genera Escherichia-Shigella, Klebsiella, Streptococcus, Coprococcus_2, Enterococcus, etc. Untargeted metabolomic analysis of hippocampal samples showed that 17 significantly differentially abundant metabolites and 9 enriched metabolic pathways were linked with BHD treatment. We also found that the regulatory effects of BHD on metabolites were correlated with the differentially abundant microbial taxa. The predicted function of the gut microbiota and the metabolic pathway enrichment results showed that purine metabolism, glutamatergic synapses, arginine and proline metabolism, and alanine, aspartic acid and glutamate metabolism were involved in the effects of BHD. These pathways may be related to pathological processes such as excitotoxicity, neuroinflammation, and energy metabolism disorder in CI. In summary, these findings suggest that regulation of hippocampal metabolism and of the composition and function of the gut microbiota may be important mechanisms underlying the effect of BHD in the treatment of CI.</p>

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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.

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CircRNA expression profile analysis of myocardial reperfusion injury in rats

Project description:To explore the differences in the expression of circRNA in myocardial ischemia-reperfusion injury and the potential effects of these differences in circRNA. Methods 6 SPF male SD rats were randomly divided into two groups, including 3 in Myocardial ischemia reperfusion group and 3 threading without ligation in control group by ligating the left anteriors branch for 40 minutes and reperfusing for 2 hours to establish a model of myocardial ischemia reperfusion injury. The myocardial specimens from the infarct area were taken for high-throughput sequencing analysis to obtain differently expressed circRNA. After that, GO and KEGG analysis were performed to speculate on the biological functions and possible biological pathways involved. RT-qPCR was used to verify the sequencing results of differential circRNA, and bioinformatics analysis predicted that circRNA could combine with miRNA to construct a visual network diagram and their interaction. Results Analyzing of 13576 circRNAs detected in 6 rats from MIRI group and control group, A total of 132 circRNAs showed significant differential expression, of which 82 were up-regulated and 50 were down-regulated. The results of GO and KEGG analysis suggest that differential circRNA is closely related to myocardial ischemia reperfusion injury, and KEGG analysis suggests that differential circRNA is involved in calcium, AMPK, mTOR and adrenaline signal pathways. 4 circRNAs were extracted from the up-regulated circRNA for RT-qPCR verification, and the results of 2 were consistent with the high-throughput sequencing results. circRNA-miRNA interaction analysis shows that circRNA interacts with a variety of miRNAs. Conclusions The expression of circRNA in myocardial reperfusion injury rats is significantly different, which may be involved in the occurrence and development of myocardial ischemia-reperfusion injury through miRNA sponge action of circRNA.

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2023-03-11 | PXD028968 | Pride

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