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Total 108 results found since Jan 2013.
Neuroprotective Effects of a Cardioplegic Combination (Adenosine, Lidocaine, and Magnesium) in an Ischemic Stroke Model
We examined the effects of low-dose ALM on ischemic stroke in cell and animal models. Cobalt chloride (CoCl2) –treated SH-SY5Y cells were used as a surrogate model to mimic oxygen–glucose deprivation conditions. The cells were incubated with different dilutions of ALM authentic solution (1.0 mM adenosine, 2.0 mM lidocaine, and5 mM MgSO4 in Earle’s balanced salt solution). At a concentration of 2.5%, ALM significantly reduced CoCl2-induced cell loss. This protective effect persisted even when ALM was administered 1 h after the insult. We used transient middle cerebral artery occlusion to investigate the therapeuti...
Source: Molecular Neurobiology - October 1, 2022 Category: Neurology Source Type: research
Circular RNA circPRDX3 mediates neuronal survival apoptosis in ischemic stroke by targeting miR-641 and NPR3
CONCLUSION: Altogether, circPRDX3 inhibited the development of IS by sponging miR-641, hence increasing NPR3 expression and inactivating MAPK pathway. These results may aid in the search of potential therapy targets for IS.PMID:36208650 | DOI:10.1016/j.brainres.2022.148114
Source: Brain Research - October 8, 2022 Category: Neurology Authors: Weiping Chen Yangbo Zhang Min Yin Zhijuan Cheng Dandan Li Xin Luo Xu Liu Jianglong Tu Source Type: research
Role of the chemokine receptors CCR2 and CX3CR1 in an experimental model of thrombotic stroke
This study underlines a key role of CCR2- and CX3CR1-expressing immune cells in the neuropathology associated with ischemic injuries.
Source: Brain, Behavior, and Immunity - March 14, 2018 Category: Neurology Source Type: research
Electrophilic and Drug-Induced Stimulation of NOTCH3 N-terminal Fragment Oligomerization in Cerebrovascular Pathology
AbstractSmall vessel disease is a prevalent age-related condition linked to increased risk of dementia and stroke. We investigate the most commonly inherited form, CADASIL, caused by cysteine-involving mutations inNOTCH3. Recent studies highlight accumulation of NOTCH3 N-terminal fragmentation product (NTF) in disease. In vitro, NTF is capable of both spontaneous and catecholamine-enhanced cysteine-mediated oligomerization. Despite well-characterized genetic influence on CADASIL, environmental effects, including medication usage, on disease remain unclear. We studied effects of assorted electrophilic compounds and drugs on...
Source: Translational Stroke Research - May 3, 2021 Category: Neurology Source Type: research
Preconditioning With Intermittent Hypobaric Hypoxia Attenuates Stroke Damage and Modulates Endocytosis in Residual Neurons
Conclusions: Intermittent hypobaric hypoxia preconditioning exerts a neuroprotective effect in a rat stroke model. Persistent hypobaric hypoxia stimulation exhibited no significant neuroprotective effect. Intermittent hypoxic preconditioning for 6 h/day for 10 days upregulates key proteins in clathrin-dependent endocytosis of neurons in the cortex.
Source: Frontiers in Neurology - December 15, 2021 Category: Neurology Source Type: research
Chuanzhitongluo regulates microglia polarization and inflammatory response in acute ischemic stroke
CONCLUSIONS: These results indicate that CZTL alleviates neuroinflammation and brain damage after AIS in mice, which may be mediated by modulating microglia polarization.PMID:36152772 | DOI:10.1016/j.brainresbull.2022.09.015
Source: Brain Research Bulletin - September 24, 2022 Category: Neurology Authors: Qingqing Wang Bin Han Xu Man Huali Gu Jinping Sun Source Type: research
Inhibited CSF1R Alleviates Ischemia Injury via Inhibition of Microglia M1 Polarization and NLRP3 Pathway.
In this study, cerebral ischemia stroke mice model was established. The C57/B6J mice were administered with Ki20227, a CSF1R inhibitor, by gavage for 7 consecutive days (0.002 mg/kg/day) before modeling. The Rota-Rod test and neurobehavioral score test were investigated to assess neurobehavioral functions. The area of infarction was assessed by 2, 3, 5-triphenyltetrazolium chloride (TTC) staining. The mRNA expressions of M1/M2 microglia markers were evaluated by real-time PCR. Immunofluorescence and Western blot were utilized to detect the changes of Iba1 and NLRP3 pathway proteins. Results showed that neurobehavioral fu...
Source: Neural Plasticity - September 12, 2020 Category: Neurology Authors: Du X, Xu Y, Chen S, Fang M Tags: Neural Plast Source Type: research
Improvement of memory and neurological deficit with Ocimum basilicum L. extract after ischemia reperfusion induced cerebral injury in mice
AbstractOxidative stress is strongly implicated in the pathogenesis of stroke. Strategies using antioxidants to improve neurological functions after stroke have, thus, gained significant attention.Ocimum basilicum L. is used traditionally to treat CNS disorders. Its antioxidant capacity is well established. Our laboratory has reported protective effects of pre-treatment withO. basilicum in experimental stroke, but its curative (post-treatment) effects in ischemic stroke have not been documented. Hence, the present study was aimed to evaluate the effect ofO. basilicum leaf extract (OBLE) on functional outcomes following cer...
Source: Metabolic Brain Disease - March 15, 2018 Category: Neurology Source Type: research
Genistein attenuates brain damage induced by transient cerebral ischemia through up-regulation of Nrf2 expression in ovariectomized rats.
In this study, ovariectomized rats were treated with genistein (10 mg/kg) or vehicle daily for two weeks before they received middle cerebral artery occlusion (MCAO) and reperfusion. After 72 hours of reperfusion, the neurological function was evaluated by Garcia test, infarct volume was detected by 2,3,5-triphenyltetrazolium chloride staining, and neuronal damage was detected by Nissl staining. In addition, ROS production and the expression of Nrf2, NQO1 and cleaved-Caspase3 in the ischemic penumbra were detected.
RESULTS: The results showed that genistein treatment significantly improved the neurological outcome, red...
Source: Neurological Research - April 26, 2018 Category: Neurology Tags: Neurol Res Source Type: research
Electro-acupuncture treatment ameliorates intestinal inflammatory injury in cerebral ischemia-reperfusion rats via regulating the balance of Treg / γδ T cells
Brain Res. 2023 Jan 6:148233. doi: 10.1016/j.brainres.2023.148233. Online ahead of print.ABSTRACTElectro-acupuncture (EA) has an anti-inflammatory role in ischemic stroke, but whether the protective effect of EA involves the regulation of the intestine barrier and Treg/ γδ T cells is unclear. Cerebral ischemia-reperfusion (I/R) injury was induced by middle cerebral artery occlusion(MCAO) for 2 hours followed by reperfusion for 24 hours. The rats have treated with EA at the "Baihui" acupoint(GV20). Triphenyl tetrazolium chloride (TTC) staining and Longa neurologic score were performed to evaluate the outcomes after ischem...
Source: Brain Research - January 9, 2023 Category: Neurology Authors: Ya-Ling Wang Ling-Ling Meng Yong-Lin Chen Ling OuYang Bu-Fan Wu Rou Peng Sheng-Feng Lu Qing Liu Tao Zhang Xiao-Xiao Li Xin-Yue Jing Bin Xu Shu-Ping Fu Source Type: research
Flinders Sensitive Line rats are resistant to infarction following transient occlusion of the middle cerebral artery.
CONCLUSIONS: Our study suggests that the rat strain does not influence infarct volumes following MCAo.
PMID: 32194078 [PubMed - as supplied by publisher]
Source: Brain Research - March 15, 2020 Category: Neurology Authors: Bay V, Happ DF, Ardalan M, Quist A, Oggiano F, Chumak T, Hansen K, Ding M, Mallard C, Andrew Tasker R, Wegener G Tags: Brain Res Source Type: research
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 Bulletin - 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
