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Total 108 results found since Jan 2013.

The neuroprotective effects of Insulin-Like Growth Factor 1 via the Hippo/YAP signaling pathway are mediated by the PI3K/AKT cascade following cerebral ischemia/reperfusion injury
Brain Res Bull. 2021 Oct 27:S0361-9230(21)00309-9. doi: 10.1016/j.brainresbull.2021.10.017. Online ahead of print.ABSTRACTInsulin-like growth factor 1 (IGF-1) has neuroprotective actions, including vasodilatory, anti-inflammatory, and antithrombotic effects, following ischemic stroke. However, the molecular mechanisms underlying the neuroprotective effects of IGF-1 following ischemic stroke remain unknown. Therefore, in the present study, we investigated whether IGF-1 exerted its neuroprotective effects by regulating the Hippo/YAP signaling pathway, potentially via activation of the PI3K/AKT cascade, following ischemic str...
Source: Brain Research - October 31, 2021 Category: Neurology Authors: Pian Gong Yichun Zou Wei Zhang Qi Tian Shoumeng Han Zhou Xu Qianxue Chen Xin Wang Mingchang Li Source Type: research

Dihydromyricetin Alleviates Ischemic Brain Injury by Antagonizing Pyroptosis in Rats
AbstractIschemic stroke is a worldwide disease that seriously threatens human health, and there are few effective drugs to treat it. Dihydromyricetin (DHM) has anti-inflammatory, antioxidant, and antiapoptotic functions. We identified pyroptosis following ischemic stroke. Here, we investigated the effect of DHM on ischemic stroke and pyroptosis. In the first part of the experiment, Sprague-Dawley rats were randomly divided into the sham group and MCAO group. The MCAO model was established by occlusion of the middle cerebral artery for 90  min using a silica gel suture. The ischemic penumbra was used for mRNA sequencing 1Â...
Source: Neurotherapeutics - August 21, 2023 Category: Neurology Source Type: research

Rhein attenuates cerebral ischemia-reperfusion injury via inhibition of ferroptosis through NRF2/SLC7A11/GPX4 pathway
CONCLUSION: Rhein attenuates cerebral I/R injury by inhibiting ferroptosis via the NRF2/SLC7A11/GPX4 axis, highlighting its potential as a therapeutic agent for ischemic stroke.PMID:37714424 | DOI:10.1016/j.expneurol.2023.114541
Source: Experimental Neurology - September 15, 2023 Category: Neurology Authors: Hua Liu Tian-Ai Zhang Wen-Yue Zhang Si-Rui Huang Yue Hu Jia Sun Source Type: research

cPKC γ alleviates ischemic injury through modulating synapsin Ia/b phosphorylation in neurons of mice.
cPKCγ alleviates ischemic injury through modulating synapsin Ia/b phosphorylation in neurons of mice. Brain Res Bull. 2018 Jul 14;: Authors: Zhang N, Zhu H, Han S, Sui L, Li J Abstract Conventional protein kinase C (cPKC)γ and synapsin Ia/b have been implicated in the development of ischemic stroke, but their relationships and functions are unclear. In the present study, the oxygen-glucose deprivation (OGD)-induced ischemic insult in primary cultured cortical neurons in vitro and middle cerebral artery occlusion (MCAO)-induced ischemic stroke model in vivo were used to elucidate the function of cPKC...
Source: Brain Research Bulletin - July 14, 2018 Category: Neurology Authors: Zhang N, Zhu H, Han S, Sui L, Li J Tags: Brain Res Bull Source Type: research

Ropinirole induces neuroprotection following reperfusion-promoted mitochondrial dysfunction after focal cerebral ischemia in Wistar rats.
In conclusion, these results demonstrate that Ropinirole treatment is beneficial in preserving the mitochondrial functions that are altered in cerebral ischemic injury and thus can help in defining better therapies. PMID: 31816341 [PubMed - as supplied by publisher]
Source: Neurotoxicology - December 5, 2019 Category: Neurology Authors: Andrabi SS, Tabassum H, Parveen S, Parvez S Tags: Neurotoxicology Source Type: research

Electroacupuncture promotes axonal regrowth by attenuating the myelin-associated inhibitors-induced RhoA/ROCK pathway in cerebral ischemia/reperfusion rats.
This study explored whether EA can improve the inhibitory microenvironment, attenuate RhoA/ROCK-mediated neurite regrowth inhibitory pathways, andpromote the expression of neuroplasticity proteins, thus exerting a protective role in cerebral ischemia/reperfusion (I/R) injury. Rats were subjected to middle cerebral artery occlusion (MCAO) for 2 h followed by 7 days of reperfusion, and they received EA or fasudil once daily for 7 days. The Garcia JH score, 2,3,5-triphenyltetrazolium chloride (TTC) staining, and transmission electron microscopy (TEM) were used to assess neural injury. The protein and mRNA levels of myelin-ass...
Source: Brain Research - August 23, 2020 Category: Neurology Authors: Chen S, Wang H, Xu H, Zhang Y, Sun H Tags: Brain Res Source Type: research

Inhibition of LncRNA MALAT1 Attenuates Cerebral Ischemic Reperfusion Injury via Regulating AQP4 Expression
Stroke is one of the leading causes of mortality and disability worldwide. Long noncoding RNAs (lncRNAs) including MALAT1 have been shown to have critical roles in cerebral ischemia reperfusion injury (CIRI). However, the underlying mechanism of MALAT1 in CIRI has not been elucidated. The present study aimed to investigate the function and potential regulatory mechanism of MALAT1 in cerebral ischemic reperfusion injury. We established the middle cerebral artery occlusion (MCAO) model and oxygen-glucose deprivation/reoxygenation (OGD/RX) model in vivo and in vitro, and then Cell Counting Kit-8 (CCK-8), RT-qPCR, flow cytomet...
Source: European Neurology - October 30, 2020 Category: Neurology Source Type: research

Neuroprotective effects of different frequency preconditioning exercise on neuronal apoptosis after focal brain ischemia in rats.
DISCUSSION: Our findings suggested that three times or more per week of high-intensity preconditioning exercise exert neuroprotective effects through the downregulation of the Bax/Bcl-2 ratio and caspase-3 activation after stroke. ABBREVIATIONS: TUNEL: terminal deoxynucleotidyl transferase-mediated biotinylated dUTP nick and labeling; MCAO:middle cerebral artery occlusion; BAX:Bcl-2-associated X protein; Bcl-2: B-cell lymphoma 2; TTC: 2,3,5-triphenyltetrazorlium chloride. PMID: 30822224 [PubMed - as supplied by publisher]
Source: Neurological Research - March 5, 2019 Category: Neurology Tags: Neurol Res Source Type: research

LncRNAGAS5 sponges miRNA-221 to promote neurons apoptosis by up-regulated PUMA under hypoxia condition.
Conclusions: the present study revealed that GAS5 aggravated cell apoptosis in hypoxia condition via miR-221/PUMA axis, which may provide potential targets for the treatment of stroke. PMID: 31878844 [PubMed - as supplied by publisher]
Source: Neurological Research - December 28, 2019 Category: Neurology Tags: Neurol Res Source Type: research

Isoflurane and Netrin-1 combination therapy enhances angiogenesis and neurological recovery by improving the expression of HIF-1 α-Netrin-1-UNC5B/VEGF cascade to attenuate cerebral ischemia injury
In conclusion, our results suggested that ISO combined with NT-1 could promote angiogenesis, recover long-term neurobehavioral function, and attenuate cerebral ischemia injury by activating the HIF-1α-Netrin-1-UNC5B/VEGF cascade.PMID:35247371 | DOI:10.1016/j.expneurol.2022.114028
Source: Experimental Neurology - March 5, 2022 Category: Neurology Authors: Nian Li Xu Zhang Jingwen Zhai Jiangwen Yin Ketao Ma Ruixue Wang Xinlei Qin Yan Li Xiwei Dong Sheng Wang Source Type: research