3,828 results match your criteria cerebral ischemia-induced

Baicalein, Baicalin, and Wogonin: Protective Effects against Ischemia-Induced Neurodegeneration in the Brain and Retina.

Oxid Med Cell Longev 2021 29;2021:8377362. Epub 2021 Jun 29.

School of Optometry, The Hong Kong Polytechnic University, Hong Kong.

Ischemia is a common pathological condition present in many neurodegenerative diseases, including ischemic stroke, retinal vascular occlusion, diabetic retinopathy, and glaucoma, threatening the sight and lives of millions of people globally. Ischemia can trigger excessive oxidative stress, inflammation, and vascular dysfunction, leading to the disruption of tissue homeostasis and, ultimately, cell death. Current therapies are very limited and have a narrow time window for effective treatment. Read More

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NLRP3 Inflammasome: A Potential Target in Isoflurane Pretreatment Alleviates Stroke-Induced Retinal Injury in Diabetes.

Front Cell Neurosci 2021 8;15:697449. Epub 2021 Jul 8.

Department of Anesthesiology, Zhujiang Hospital of Southern Medical University, Guangzhou, China.

Ischemic stroke remains a devastating disease which is the leading cause of death worldwide. Visual impairment after stroke is a common complication which may lead to vision loss, greatly impacting life quality of patients. While ischemic stroke is traditionally characterized by a blockage of blood flow to the brain, this may coincide with reduced blood flow to the eye, resulting in retinal ischemia and leading to visual impairment. Read More

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Disassembly of DAPK and DANGER Interaction Mediates Hippocampal CA1 Neuron Death in Rat Cerebral Ischemic Reperfusion.

Neuroscience 2021 Jul 21. Epub 2021 Jul 21.

Jiangsu Key Laboratory of Brain Disease Bioinformation, Xuzhou Medical University, Jiangsu, China; Research Center for Biochemistry and Molecular Biology, Xuzhou Medical University, Jiangsu, China. Electronic address:

Death-associated protein kinase (DAPK) is a Ca/CaM-regulated protein kinase that is involved in cell death processes by multiple pathways. It has been reported that DAPK may play a role in brain ischemia-induced neuronal death, but this mechanism is not well understood. DANGER, a membrane-associated protein that binds to DAPK physiologically, inhibits DAPK activation. Read More

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Cannabidiol Confers Neuroprotection in Rats in a Model of Transient Global Cerebral Ischemia: Impact of Hippocampal Synaptic Neuroplasticity.

Mol Neurobiol 2021 Jul 24. Epub 2021 Jul 24.

Department of Pharmacology and Therapeutics, State University of Maringá, Av. Colombo, Maringá, Paraná, 5790, 87020-900, Brazil.

Evidence for the clinical use of neuroprotective drugs for the treatment of cerebral ischemia (CI) is still greatly limited. Spatial/temporal disorientation and cognitive dysfunction are among the most prominent long-term sequelae of CI. Cannabidiol (CBD) is a non-psychotomimetic constituent of Cannabis sativa that exerts neuroprotective effects against experimental CI. Read More

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Preconditioning-Activated AKT Controls Neuronal Tolerance to Ischemia through the MDM2-p53 Pathway.

Int J Mol Sci 2021 Jul 6;22(14). Epub 2021 Jul 6.

Institute of Functional Biology and Genomics, University of Salamanca, CSIC, 37007 Salamanca, Spain.

One of the most important mechanisms of preconditioning-mediated neuroprotection is the attenuation of cell apoptosis, inducing brain tolerance after a subsequent injurious ischemia. In this context, the antiapoptotic PI3K/AKT signaling pathway plays a key role by regulating cell differentiation and survival. Active AKT is known to increase the expression of murine double minute-2 (MDM2), an E3-ubiquitin ligase that destabilizes p53 to promote the survival of cancer cells. Read More

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Copper as a Collaborative Partner of Zinc-Induced Neurotoxicity in the Pathogenesis of Vascular Dementia.

Int J Mol Sci 2021 Jul 6;22(14). Epub 2021 Jul 6.

Department of Bio-Analytical Chemistry, Faculty of Pharmacy, Research Institute of Pharmaceutical Sciences, Musashino University, Tokyo 202-8585, Japan.

Copper is an essential trace element and possesses critical roles in various brain functions. A considerable amount of copper accumulates in the synapse and is secreted in neuronal firings in a manner similar to zinc. Synaptic copper and zinc modulate neuronal transmission and contribute to information processing. Read More

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Dihydrocapsaicin effectively mitigates cerebral ischemia-induced pathological changes in vivo, partly via antioxidant and anti-apoptotic pathways.

Life Sci 2021 Jul 20:119842. Epub 2021 Jul 20.

Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.

Aims: Ischemic stroke occurs when there is a sudden blockage of cerebral blood flow. This condition is a major cause of mortality, especially in low-income countries, and its incidence is dramatically increasing. Therapeutic strategies against stroke are therefore required. Read More

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MiR-125a-5p silencing inhibits cerebral ischemia-induced injury through targeting IGFBP3.

Folia Neuropathol 2021 ;59(2):121-130

Department of Neurology, Qingdao Central Hospital, Qingdao, Shandong, China.

Dysregulated microRNAs (miRNAs) are crucial regulators of cerebrovascular conditions, including ischemic stroke. Circulating miR-125a-5p is associated with ischemic stroke and may have clinical utility as an early diagnostic biomarker. This study conducted a series of experiments that were designed to elucidate the regulatory action of miR-125a-5p in ischemic brain injury and its underlying mechanisms. Read More

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January 2021

Bisindole compound 4ae ameliorated cognitive impairment in rats with vascular dementia by anti-inflammation effect via microglia cells.

Eur J Pharmacol 2021 Jul 17;908:174357. Epub 2021 Jul 17.

School of Pharmacy, Key Laboratory of Natural Medicine and Immune Engineering, Henan University, Kaifeng, 475004, PR China. Electronic address:

Neuroinflammation is considered as an important mechanism of vascular dementia (VaD). Our primary study showed that the bisindole analogue (2-(2-(bis(5-chloro-1H-indol-3-yl)methyl)phenoxy)aniline, compound 4ae) had great anti-inflammation in zebrafish. Rat model of permanent occlusion of the bilateral common carotid arteries (2-vessel occlusion, 2VO) was utilized to evaluate the neuroprotective effect of 4ae. Read More

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Inhibition of Perforin-Mediated Neurotoxicity Attenuates Neurological Deficits After Ischemic Stroke.

Front Cell Neurosci 2021 28;15:664312. Epub 2021 Jun 28.

Department of Neurology, Beijing Friendship Hospital, Capital Medical University, Beijing, China.

Perforin-mediated cytotoxicity plays a crucial role in microbial defense, tumor surveillance, and primary autoimmune disorders. However, the contribution of the cytolytic protein perforin to ischemia-induced secondary tissue damage in the brain has not been fully investigated. Here, we examined the kinetics and subpopulations of perforin-positive cells and then evaluated the direct effects of perforin-mediated cytotoxicity on outcomes after ischemic stroke. Read More

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Neuroprotective effect of green and roasted coffee bean extracts on cerebral ischemia-induced injury in rats.

Metab Brain Dis 2021 Jul 2. Epub 2021 Jul 2.

Department of Biochemistry and Molecular Biology, Faculty of Pharmacy, Helwan University, Cairo, Egypt.

Stroke is a lethal event with a high incidence in Egypt. Quick early intervention can be lifesaving. Transient global ischemia (TGI), a type of ischemic stroke, is mainly instigated by cardiac arrest. Read More

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Circular RNA _NLRP1 targets mouse microRNA-199b-3p to regulate apoptosis and pyroptosis of hippocampal neuron under oxygen-glucose deprivation exposure.

Bioengineered 2021 Dec;12(1):3455-3466

School of Clinical Medicine, Guizhou Medical University, Guizhou, Guiyang, P. R. China.

Primary hippocampal neuronal cells were used to establish cell model of cerebral ischemia under oxygen-glucose deprivation (OGD) treatment. After the cell model was pre-treated with short hairpin (sh)-circ_NLRP1 or mmu-miR-199b-3p inhibitor, LDH release and cell apoptosis were detected by LDH kit and TUNEL staining, respectively, while the expression of NLRP3 pyroptosis-related makers was analyzed through immunofluorescence (IF) assay and Western blot, respectively. The binding sites between circ_NLRP1 and mmu-miR-199b-3p were predicted and further validated by Dual Luciferase Reporter assay. Read More

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December 2021

Pioglitazone Ameliorates Lipopolysaccharide-Induced Behavioral Impairment, Brain Inflammation, White Matter Injury and Mitochondrial Dysfunction in Neonatal Rats.

Int J Mol Sci 2021 Jun 11;22(12). Epub 2021 Jun 11.

School of Medicine, Fu Jen Catholic University, Xinzhuang Dist., New Taipei City 24205, Taiwan.

Previous studies have demonstrated that pioglitazone, a peroxisome proliferator-activated receptor gamma (PPARγ) agonist, inhibits ischemia-induced brain injury. The present study was conducted to examine whether pioglitazone can reduce impairment of behavioral deficits mediated by inflammatory-induced brain white matter injury in neonatal rats. Intraperitoneal (i. Read More

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Special issue: Neuroinflammatory pathways as treatment targets in brain disorders autophagic regulation of neuroinflammation in ischemic stroke.

Neurochem Int 2021 Sep 27;148:105114. Epub 2021 Jun 27.

Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China. Electronic address:

Despite the high lethality and increasing prevalence, effective therapy for ischemic stroke is still limited. As a crucial pathophysiological mechanism underlying ischemic injury, neuroinflammation remains a promising target for novel anti-ischemic strategies. However, the potential adverse effects limit the applications of traditional anti-inflammatory therapies. Read More

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September 2021

Trillium tschonoskii rhizomes' saponins induces oligodendrogenesis and axonal reorganization for ischemic stroke recovery in rats.

J Ethnopharmacol 2021 Jun 21;279:114358. Epub 2021 Jun 21.

School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China; Beijing Key Lab of TCM Collateral Disease Theory Research, Beijing, 100069, China. Electronic address:

Ethnopharmacological Relevance: Trillium tschonoskii Maxim. is one of traditional Chinese medical herbs that has been utilized to treat brain damages and cephalalgia. The neuroprotective effect of total saponins from Trillium tschonoskii rhizome (TSTT) has been demonstrated efficacy in rats following ischemia. Read More

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Three-dimensional cultured mesenchymal stem cells enhance repair of ischemic stroke through inhibition of microglia.

Stem Cell Res Ther 2021 06 21;12(1):358. Epub 2021 Jun 21.

State Key Laboratory of Chemical Oncogenomics, and Shenzhen Key Laboratory of Health Sciences and Technology, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China.

Background: We show previously that three-dimensional (3D) spheroid cultured mesenchymal stem cells (MSCs) exhibit reduced cell size thus devoid of lung entrapment following intravenous (IV) infusion. In this study, we determined the therapeutic effect of 3D-cultured MSCs on ischemic stroke and investigated the mechanisms involved.

Methods: Rats underwent middle cerebral artery occlusion (MCAO) and reperfusion. Read More

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Ameliorative Effect of Parishin C Against Cerebral Ischemia-Induced Brain Tissue Injury by Reducing Oxidative Stress and Inflammatory Responses in Rat Model.

Neuropsychiatr Dis Treat 2021 4;17:1811-1823. Epub 2021 Jun 4.

Department of Anesthesiology, the Second Affiliated Hospital of Hainan Medical University, Haikou, Hainan, 570311, People's Republic of China.

Background: Blume () is a widely used traditional Chinese herbal medicine in the clinical practice of China, to treat nervous headache, convulsions, dizziness, neurasthenia, and so on. Parishin C (Par C), one of the major bioactive components of Blume, is known to exert many different biological activities, including antipsychotic and neuroprotective effects. However, there is little research about its neuroprotective effect in an ischemic stroke model. Read More

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Synthesis and Characterization of Novel Mono- and Bis-Guanyl Hydrazones as Potent and Selective ASIC1 Inhibitors Able to Reduce Brain Ischemic Insult.

J Med Chem 2021 Jun 7;64(12):8333-8353. Epub 2021 Jun 7.

Chemistry Department, University of Milan, Via Golgi 19, 20133 Milan, Italy.

Acid-sensitive ion channels (ASICs) are sodium channels partially permeable to Ca ions, listed among putative targets in central nervous system (CNS) diseases in which a pH modification occurs. We targeted novel compounds able to modulate ASIC1 and to reduce the progression of ischemic brain injury. We rationally designed and synthesized several diminazene-inspired diaryl mono- and bis-guanyl hydrazones. Read More

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Bilateral asterixis in a patient with bilateral anterior cerebral artery infarction.

Clin Neurol Neurosurg 2021 Jul 29;206:106716. Epub 2021 May 29.

Division of Neurology, Department of Brain and Neurosciences, Faculty of Medicine, Tottori University, Yonago, Japan.

A 83-year-old woman complained of muscular weakness in the left leg and trembling in all extremities. She was apathetic and had left leg paresis and asterixis in all extremities. Magnetic resonance imaging revealed acute cerebral infarctions in the bilateral frontal lobes perfused by the anterior cerebral artery (ACA). Read More

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[The Search for Citrus Components with Neuroprotective and Anti-dementia Effects in the Mouse Brain].

Yakugaku Zasshi 2021 ;141(6):819-824

Department of Pharmaceutical Pharmacology, College of Pharmaceutical Sciences, Matsuyama University.

Citrus kawachiensis (Kawachi Bankan), is a citrus species grown in Ehime, Japan, and its peel is abundant in 3,5,6,7,8,3',4'-heptamethoxyflavone (HMF). We have recently revealed that HMF, one of the citrus flavonoids, has anti-inflammatory activity and neuroprotective abilities in the brain against global cerebral ischemia. HMF rescued neuronal cell death in the hippocampus and suppressed the activation of microglia, whose activation have been shown to significantly aggravate neurological deficit scores for ischemic mice. Read More

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January 2021

Transient Global Ischemia-Induced Brain Inflammatory Cascades Attenuated by Targeted Temperature Management.

Int J Mol Sci 2021 May 12;22(10). Epub 2021 May 12.

Department of Physiology, College of Medicine, Hallym University, Chuncheon 24252, Korea.

Sudden cardiac arrest leads to a significantly increased risk of severe neurological impairment and higher mortality rates in survivors due to global brain tissue injury caused by prolonged whole-body ischemia and reperfusion. The brain undergoes various deleterious cascading events. Among these damaging mechanisms, neuroinflammation plays an especially crucial role in the exacerbation of brain damage. Read More

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miR-24 protects against ischemia-induced brain damage in rats via regulating microglia polarization by targeting Clcn3.

Neurosci Lett 2021 May 29;759:135998. Epub 2021 May 29.

Department of Emergency Neurology, Yidu Central Hospital of Weifang, Qingzhou 262500, Shandong Province, China.

Microglia and macrophages play important roles in ischemic brain injury. Changes in their M1/M2 polarization phenotypes significantly impact disease progression. The M2 microglia/macrophages are anti-inflammatory and have a protective effect against ischemic injury. Read More

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Methanol extract of Ficus platyphylla decreases cerebral ischemia induced injury in mice.

J Ethnopharmacol 2021 Oct 28;278:114219. Epub 2021 May 28.

Department of Pharmacology and Toxicology, Faculty of Pharmaceutical Sciences, Kaduna State University, Kaduna, Nigeria; Department of Pharmacology and Toxicology, National Institute for Pharmaceutical Research & Development, Abuja, Nigeria.

Ethnopharmacological Relevance: Extracts of the stem bark of Ficus paltyphylla (FP) are used in the Nigerian traditional medicine to manage psychoses, depression, epilepsy, pain, and inflammation. Our previous studies revealed that the methanol extract of FP ameliorate body core temperature.

Aim Of The Study: A number of pharmacological agents that utilize mechanisms that enhanced neuronal survival and/or neural regeneration have been developed for the treatment of stroke. Read More

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October 2021

Comparison of Neuronal Death, Blood-Brain Barrier Leakage and Inflammatory Cytokine Expression in the Hippocampal CA1 Region Following Mild and Severe Transient Forebrain Ischemia in Gerbils.

Neurochem Res 2021 May 29. Epub 2021 May 29.

Department of Biomedical Science, Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, Gangwon, 24252, Republic of Korea.

Transient ischemia in the brain causes blood-brain barrier (BBB) breakdown and dysfunction, which is related to ischemia-induced neuronal damage. Leakage of plasma proteins following transient ischemia is one of the indicators that is used to determine the extent of BBB dysfunction. In this study, neuronal damage/death, leakage of albumin and IgG, microgliosis, and inflammatory cytokine expression were examined in the hippocampal CA1 region, which is vulnerable to transient ischemia, following 5-min (mild) and 15-min (severe) ischemia in gerbils induced by transient common carotid arteries occlusion (tCCAo). Read More

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High gestational folic acid supplementation prevents hypoxia-ischemia-induced caspase-3 augmenting without changing synapsin and H3 methylation levels in the rat hippocampus.

Int J Dev Neurosci 2021 May 22. Epub 2021 May 22.

Programa de Pós-Graduação em Neurociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.

Perinatal asphyxia is a peripartum event that can cause permanent sequelae to the newborns, affecting the brain development. Recently, it has been demonstrated that epigenetics mechanisms play an important role in this injury and that folic acid (FA) supplementation during pregnancy can affect these epigenetics modifications as well as gene expression. We have identified both positive and negative effects of FA treatment in rats submitted to a model of neonatal hypoxia-ischemia (HI). Read More

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Activation of Neuropeptide Y2 Receptor Can Inhibit Global Cerebral Ischemia-Induced Brain Injury.

Neuromolecular Med 2021 May 21. Epub 2021 May 21.

Department of Neurology, Louisiana State University Health Sciences Center, 1501 Kings Hwy, Shreveport, USA.

Cardiopulmonary arrest (CA) can greatly impact a patient's life, causing long-term disability and death. Although multi-faceted treatment strategies against CA have improved survival rates, the prognosis of CA remains poor. We previously reported asphyxial cardiac arrest (ACA) can cause excessive activation of the sympathetic nervous system (SNS) in the brain, which contributes to cerebral blood flow (CBF) derangements such as hypoperfusion and, consequently, neurological deficits. Read More

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Carbonyl Reductase 1 Attenuates Ischemic Brain Injury by Reducing Oxidative Stress and Neuroinflammation.

Transl Stroke Res 2021 May 8. Epub 2021 May 8.

Department of Neurology, The Second Affiliated Hospital; Key Laboratory of Cerebral Microcirculation in Universities of Shandong; Brain Science Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, 271000, Shandong, China.

Oxidative stress and neuroinflammatory response after the ischemic injury are important pathophysiologic mechanisms that cause brain tissue loss and neurological deficit. This study aims to observe the expression and role of carbonyl reductase 1 (CBR1), an NADPH-dependent oxidoreductase with specificity for carbonyl compounds such as 4-hydroxynonenal (4-HNE), in the brain after ischemic injury and to investigate the influence of CBR1 on ischemia-induced neuroinflammation. CBR1 expresses in the neurons, astrocyte, and microglia in the normal brain. Read More

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Possible involvement of progranulin in the protective effect of elastase inhibitor on cerebral ischemic injuries of neuronal and glial cells.

Mol Cell Neurosci 2021 06 29;113:103625. Epub 2021 Apr 29.

Department of Applied Biochemistry, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan. Electronic address:

In a previous study, we demonstrated that neutrophil elastase is activated in the brain parenchyma after cerebral ischemia, which enzyme cleaves progranulin (PGRN), an anti-inflammatory factor. In that study, we also found that sivelestat, a selective neutrophil elastase inhibitor, attenuates ischemia-induced inflammatory responses. However, it was not clear whether this anti-inflammatory effect was due to the direct effect of sivelestat. Read More

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The Cytoskeletal Elements MAP2 and NF-L Show Substantial Alterations in Different Stroke Models While Elevated Serum Levels Highlight Especially MAP2 as a Sensitive Biomarker in Stroke Patients.

Mol Neurobiol 2021 Aug 1;58(8):4051-4069. Epub 2021 May 1.

Department of Neurology, Leipzig University, Leipzig, Germany.

In the setting of ischemic stroke, the neurofilament subunit NF-L and the microtubule-associated protein MAP2 have proven to be exceptionally ischemia-sensitive elements of the neuronal cytoskeleton. Since alterations of the cytoskeleton have been linked to the transition from reversible to irreversible tissue damage, the present study investigates underlying time- and region-specific alterations of NF-L and MAP2 in different animal models of focal cerebral ischemia. Although NF-L is increasingly established as a clinical stroke biomarker, MAP2 serum measurements after stroke are still lacking. Read More

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The hypoxia sensitive metal transcription factor MTF-1 activates NCX1 brain promoter and participates in remote postconditioning neuroprotection in stroke.

Cell Death Dis 2021 Apr 30;12(5):423. Epub 2021 Apr 30.

Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, Federico II University of Naples, via Pansini 5, 80131, Naples, Italy.

Remote limb ischemic postconditioning (RLIP) is an experimental strategy in which short femoral artery ischemia reduces brain damage induced by a previous harmful ischemic insult. Ionic homeostasis maintenance in the CNS seems to play a relevant role in mediating RLIP neuroprotection and among the effectors, the sodium-calcium exchanger 1 (NCX1) may give an important contribution, being expressed in all CNS cells involved in brain ischemic pathophysiology. The aim of this work was to investigate whether the metal responsive transcription factor 1 (MTF-1), an important hypoxia sensitive transcription factor, may (i) interact and regulate NCX1, and (ii) play a role in the neuroprotective effect mediated by RLIP through NCX1 activation. Read More

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