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Total 37 results found since Jan 2013.

Stroke Dysbiosis Index (SDI) in Gut Microbiome Are Associated With Brain Injury and Prognosis of Stroke
Conclusions: We developed an index to measure gut microbiota dysbiosis in stroke patients; this index was significantly correlated with patients' outcome and was causally related to outcome in a mouse model of stroke. Our model facilitates the potential clinical application of gut microbiota data in stroke and adds quantitative evidence linking the gut microbiota to stroke. Introduction Ischemic stroke imposes a heavy burden on society, with 24.9 million cases worldwide (1). Although intravenous thrombolysis and endovascular treatment greatly improve some patients' prognosis, the prognosis for most pa...
Source: Frontiers in Neurology - April 23, 2019 Category: Neurology Source Type: research

Baicalin Reduces Immune Cell Infiltration by Inhibiting Inflammation and Protecting Tight Junctions in Ischemic Stroke Injury
In conclusion, baicalin could reduce BMECs apoptosis, protect tight junctions, and resist immune cell infiltration, thereby alleviating ischemic stroke. Our findings potentially provide a novel treatment strategy for ischemic stroke.PMID:36661075 | DOI:10.1142/S0192415X23500180
Source: The American Journal of Chinese Medicine - January 20, 2023 Category: Complementary Medicine Authors: Zhiyuan Hao Zheyu Zhang Yuhang Zhao Dongsheng Wang Source Type: research

Muscone promotes functional recovery by facilitating microglia polarization into M2 phenotype through PPAR- γ pathway after ischemic stroke
Cell Immunol. 2023 Mar 5;386:104704. doi: 10.1016/j.cellimm.2023.104704. Online ahead of print.ABSTRACTExploring regimens to facilitate microglia transformation from M1 to M2 phenotype is a feasible strategy to suppress neuroinflammation, therefore reinforcing functional recovery after ischemic stroke. Muscone easily crosses the blood brain barrier (BBB) and distributes throughout the brain. Here, the results illustrated the administration of 8 mg/kg muscone promoted functional recovery through reducing the infarct volume by 2,3,5-triphenyltetrazolium chloride (TTC) staining after ischemic stroke in mice. Then, the express...
Source: Cellular Immunology - March 15, 2023 Category: Allergy & Immunology Authors: Fei Liu Liwei Cao Shejing Hu Hongxiang Ye Qiang Wu Le Wu Source Type: research

Overexpression of Egr2 and Egr4 protects rat brains against ischemic stroke by downregulating JNK signaling pathway.
CONCLUSION: Upregulation of Egr2 and Egr4 could demote the activation of JNK/c-JUN pathway and the expression of pro-inflammatory cytokines in MCAO rats, so that Egr2 and Egr4 might be potential targets for ischemic stroke in future. PMID: 29580816 [PubMed - as supplied by publisher]
Source: Biochimie - March 23, 2018 Category: Biochemistry Authors: Niu RN, Shang XP, Teng JF Tags: Biochimie Source Type: research

β2-Microglobulin exacerbates neuroinflammation, brain damage, and cognitive impairment after stroke in rats
In this study, we established a rat model of focal cerebral ischemia by occlusion of the middle cerebral artery. We found that β2M levels in the cerebral spinal fluid, serum, and brain tissue were significantly increased in the acute period but gradually decreased during the recovery period. RNA interference was used to inhibit β2M expression in the acute period of cerebral stroke. Tissue staining with 2,3,5-triphenyltetrazolium chloride and evaluation of cognitive function using the Morris water maze test demonstrated that decreased β2M expression in the ischemic penumbra reduced infarct volume and alleviated cognitive...
Source: Cell Research - August 26, 2022 Category: Cytology Authors: Feng Chen Jing Liu Fa-Qiang Li Shuai-Shuai Wang Yan-Yan Zhang Yun-Yun Lu Fang-Fang Hu Rui-Qin Yao Source Type: research

Polyoxometalate nanoclusters act as broad-spectrum antioxidants to alleviate ischemic stroke by intrathecal injection
Conclusion: Intrathecal injection significantly improved the delivery and efficacy of POM nanoclusters to the brain, resulting in the rapid accumulation of POM nanoclusters in the ischemic penumbra. Due to this, we confirmed that the POM nanoclusters could be used as nano-antioxidants to inhibit oxidative stress as well as inflammatory damage effectively.
Source: Journal of Nuclear Medicine - May 14, 2020 Category: Nuclear Medicine Authors: Rosenkrans, Z., Li, S., Jiang, D., NI, D., Engle, J., Cai, W. Tags: Center for Molecular Imaging Innovation & amp; Translation (CMIIT) YIA Symposium Source Type: research

Protective effects of Dimethyl malonate on neuroinflammation and blood-brain barrier after ischemic stroke
Conclusions DMM could regulate activation and polarization of microglia to inhibit neuroinflammation and protect BBB.
Source: NeuroReport - September 3, 2021 Category: Neurology Tags: Degeneration and Repair Source Type: research

Orally Administered Crocin Protects Against Cerebral Ischemia/Reperfusion Injury Through the Metabolic Transformation of Crocetin by Gut Microbiota
Conclusion Collectively, pharmacokinetic and pharmacodynamic association studies provide evidence that the gut microbiota plays a vital role in the fate of crocin and crocetin in the gastrointestinal tract. In addition, the cross-interaction between gut microbiota and crocin might mediate the activation of the cerebral-protective effect of orally administered crocin. Ethics Statement This study was carried out in accordance with the recommendations of ‘Institutional Animal Research Committee guidelines, Animal Ethics Committee of China Pharmaceutical University.’ The protocol was approved by the ‘An...
Source: Frontiers in Pharmacology - April 29, 2019 Category: Drugs & Pharmacology Source Type: research

Down-regulation of NOX4 by betulinic acid protects against cerebral ischemia-reperfusion in mice
SummaryIschemic stroke leads to high potentiality of mortality and disability. The current treatment for ischemic stroke is mainly focused on intravenous thrombolytic therapy. However, ischemia/ reperfusion induces neuronal damage, which significantly influences the outcome of patients with ischemic stroke, and the exact mechanism implicated in ischemia/reperfusion injury remains unclear, although evidence shows that oxidative stress is likely to be involved. Betulinic acid is mainly known for its anti-tumor and anti-inflammatory activities. Our previous study showed that betulinic acid could decrease the reactive oxygen s...
Source: Journal of Huazhong University of Science and Technology -- Medical Sciences -- - October 1, 2017 Category: Research Source Type: research

Canagliflozin Inhibits Human Endothelial Cell Proliferation and Tube Formation
In conclusion, the present study identified canagliflozin as a potent inhibitor of human EC proliferation. The anti-proliferative action of canagliflozin is observed in ECs isolated from both the venous and arterial circulation, and is partly due to the blockade of cyclin A expression. In addition, this study found that canagliflozin inhibits tube formation in cultured ECs and mouse aortic rings. Notably, these actions are specific for canagliflozin and not seen with other SGLT2 inhibitors. The ability of canagliflozin to exert these pleiotropic effects on EC function may contribute to both the adverse and salutary actions...
Source: Frontiers in Pharmacology - April 15, 2019 Category: Drugs & Pharmacology Source Type: research