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The Weakened Interaction Between HECTD4 and GluN2B in Ischemic Stroke Promotes Calcium Overload and Brain Injury Through a Mechanism Involving the Decrease of GluN2B and MALT1 Ubiquitination
This study explores the relationship between HECTD4, GluN2B, and MALT1, focusing on their role in brain injury in ischemic stroke. Rats were subjected to 2  h-ischemia followed by 24-h reperfusion to establish an ischemic stroke model. We observed the downregulation of HECTD4 and the upregulation of MALT1. Additionally, an increased GluN2B phosphorylation was concomitant with weakened interactions between HECTD4 and GluN2B, followed by decreased stria tal-enriched protein phosphatase (STEP61). Knockdown of HECTD4 exacerbated hypoxia- or NMDA-induced injury in nerve cells coincident with a decrease in GluN2B and MALT1 ubiq...
Source: Molecular Neurobiology - March 1, 2023 Category: Neurology Source Type: research

Circular noncoding RNA circ_0007865, serves as a competing endogenous RNA, targeting the miR-214-3p/FKBP5 axis to regulate oxygen-glucose deprivation-induced injury in brain microvascular endothelial cells
Conclusion According to these results, circ_0007865 deficiency could attenuate OGD-induced HBMEC damage by modulating the miR-214-3p/FKBP5 axis, hinting at a promising therapeutic target for future acute IS therapy.
Source: NeuroReport - February 11, 2022 Category: Neurology Tags: Cellular, Molecular and Developmental Neuroscience Source Type: research

Cryptotanshinone Attenuates Oxygen-Glucose Deprivation/ Recovery-Induced Injury in an in vitro Model of Neurovascular Unit
Conclusions Despite the above limitations, we indicate that the protective mechanism of CTs against OGD/R damage might exert via inhibiting neuron apoptosis and attenuating BBB disruption. Furthermore, we also clarified that CTs inhibited neuronal apoptosis possibly by blocking the activation of MAPK signaling pathways, and CTs alleviating BBB disruption may associated with the regulation of TJPs and MMP-9 in our experiment. Accordingly, CTs will represent a novel and potent candidate for the treatment of CIRI in the future. Ethics Statement This study was carried out in accordance with the recommendations of China�...
Source: Frontiers in Neurology - April 17, 2019 Category: Neurology Source Type: research

The Effects of Intelectin-1 on Antioxidant and Angiogenesis in HUVECs Exposed to Oxygen Glucose Deprivation
Conclusion: These results suggest intelectin-1 promotes angiogenesis, inhibits oxidative stress and reduces apoptosis by stimulating the Akt-eNOS signaling pathway in response to ischemia in vitro. Introduction Stroke is a main reason of human neurological disability, ischemic stroke (IS) accounts for almost 80–90% of all strokes. IS occurs after a cerebral blood flow disruption, leading to cellular death and tissue damage by restricting glucose and oxygen supplies (1). Ischemic vascular diseases cause substantial vascular valve and vascular endothelial cell injuries, eventually damaging the surrounding tis...
Source: Frontiers in Neurology - April 15, 2019 Category: Neurology Source Type: research

Cell-Based Therapies for Stroke: Promising Solution or Dead End? Mesenchymal Stem Cells and Comorbidities in Preclinical Stroke Research
Conclusion The high prevalence of comorbidities in patients with stroke indicates the need for therapies in preclinical studies that take into account these comorbidities in order to avoid failures in translation to the patient. Preclinical studies are beginning to evaluate the efficacy of MSC treatment in stroke associated with comorbidities, especially hypertension, for ischemic and hemorrhagic stroke. Regarding aging and diabetes, only ischemic stroke studies have been performed. For the moment, few studies have been performed and contradictory results are being reported. These contradictory results may be due to the u...
Source: Frontiers in Neurology - April 8, 2019 Category: Neurology Source Type: research

(-)-Phenserine inhibits neuronal apoptosis following ischemia/reperfusion injury.
This study investigated the therapeutic effects of (-)-phenserine for stroke in the rat focal cerebral ischemia model and oxygen-glucose deprivation/reperfusion (OGD/RP) damage model in SH-SY5Y neuronal cultures. (-)-Phenserine mitigated OGD/PR-induced SH-SY5Y cell death, providing an inverted U-shaped dose-response relationship between concentration and survival. In MCAO challenged rats, (-)-phenserine reduced infarction volume, cell death and improved body asymmetry, a behavioral measure of stoke impact. In both cellular and animal studies, (-)-phenserine elevated brain-derived neurotrophic factor (BDNF) and B-cell lymph...
Source: Brain Research - September 26, 2017 Category: Neurology Authors: Chang CF, Lai JH, Wu JC, Greig NH, Becker RE, Luo Y, Chen YH, Kang SJ, Chiang YH, Chen KY Tags: Brain Res Source Type: research

Granulomatous Angiitis of the Central Nervous System Associated with Hodgkin's Lymphoma: Case Report and Literature Review
We describe the case of a patient with neurological symptoms from GACNS that led to the diagnosis of HL, as well as a literature review focusing on the association between GACNS and HL.
Source: Journal of Stroke and Cerebrovascular Diseases - September 21, 2017 Category: Neurology Authors: A. Sebastian Lopez-Chiriboga, Jang W. Yoon, Jason L. Siegel, Andrea M. Harriott, Stephen Pirris, Benjamin H. Eidelman, William D. Freeman Tags: Case Studies Source Type: research

Rapidly Progressive atypical Posterior Reversible Encephalopathy Syndrome (PRES) associated with B-cell lymphoma (P4.065)
Conclusions:This case illustrates a rapidly progressive clinicoradiological syndrome with remarkable radiographical features of atypical PRS, and association with diffuse B-cell lymphomaDisclosure: Dr. Bronstein has nothing to disclose. Dr. Danesh has nothing to disclose. Dr. Petrovic has nothing to disclose. Dr. Ashikian has nothing to disclose. Dr. Arbuckle has nothing to disclose. Dr. Homafar has nothing to disclose.
Source: Neurology - April 17, 2017 Category: Neurology Authors: Bronstein, Y., Danesh, M., Petrovic, M., Ashikian, N., Arbuckle, R., Homafar, H. Tags: General Neurology: Vascular Neurology Source Type: research

Vascular Endothelial Growth Factor Isoform-B Stimulates Neurovascular Repair After Ischemic Stroke by Promoting the Function of Pericytes via Vascular Endothelial Growth Factor Receptor-1
In this study, we investigated the therapeutic potential of VEGF-B in ischemic stroke using different in vivo and in vitro approaches. We showed that the delayed intranasal administration of VEGF-B reduced neuronal damage and inflammation. Unexpectedly, VEGF-B stimulated the formation of stable brain microvasculature within the injured region by promoting the interaction between endothelial cells and pericytes. Our data indicate that the effects of VEGF-B were mediated via its specific receptor VEGF receptor-1 (VEGFR-1) that is predominately expressed in brain pericytes. Importantly, VEGF-B promoted the survival of pericyt...
Source: Molecular Neurobiology - March 13, 2017 Category: Neurology Source Type: research

Diagnostic Yield and Safety of Brain Biopsy for Suspected Primary Central Nervous System Angiitis Brief Reports
Conclusions— Brain biopsy leads to pathological confirmation of vasculitis in a minority of suspected PACNS cases but alternative diagnoses are often identified. Importantly, rare but meaningful complications may occur.
Source: Stroke - July 24, 2016 Category: Neurology Authors: Torres, J., Loomis, C., Cucchiara, B., Smith, M., Messe, S. Tags: Cerebrovascular Disease/Stroke Brief Reports Source Type: research

Sjogren's syndrome with acute cerebellar ataxia and massive lymphadenopathy : a case report.
DISCUSSION: For patients with acute acquired cerebellar ataxia, immune-mediated cerebellar ataxia should be an important differential diagnosis aside from the more common causes like stroke or drugs. PMID: 24030041 [PubMed - indexed for MEDLINE]
Source: Acta Neurologica Taiwanica - December 12, 2015 Category: Neurology Tags: Acta Neurol Taiwan Source Type: research

Neuroprotective Role of an N-acetyl Serotonin Derivative via Activation of Tropomyosin-related Kinase Receptor B after Subarachnoid Hemorrhage in a Rat Model.
This study is to investigate a potential role of HIOC on ameliorating early brain injury after experimental subarachnoid hemorrhage (SAH). One hundred and fifty-six adult male Sprague-Dawley rats were used. SAH model was induced by endovascular perforation. TrkB small interfering RNA (siRNA) or scramble siRNA was injected intracerebroventricularly 24hours before SAH. HIOC was administrated intracerebroventricularly 3hours after SAH and compared with brain-derived neurotrophic factor (BDNF). SAH grade and neurologic scores were evaluated for the outcome study. For the mechanism study, the expression of TrkB, phosphorylated ...
Source: Neurobiology of Disease - April 8, 2015 Category: Neurology Authors: Tang J, Hu Q, Chen Y, Liu F, Zheng Y, Tang J, Zhang J, Zhang JH Tags: Neurobiol Dis Source Type: research

Limbic Encephalitis Exacerbations and Remissions Charted by Microglial PET Scan: A Case Study (P4.104)
CONCLUSIONS: C-11-PK11195 PET imaging can be useful in the diagnosis of limbic encephalitis and for monitoring response to treatment. MALT lymphoma may also be associated with autoimmune or paraneoplastic encephalitis, especially in individuals with other predisposing factors to autoimmune disorders, such as Tourette’s and autoimmune thyroid disease. The reduction in microglial activity with both IVIG and anti-psychotics supports previous findings that anti-psychotics may act through anti-inflammatory pathways.Disclosure: Dr. Shatz has received research support from Janssen Pharmaceutica. Dr. Chugani has nothing to disclose.
Source: Neurology - April 8, 2015 Category: Neurology Authors: Shatz, R., Chugani, H. Tags: Aging, Dementia, Cognitive, and Behavioral Neurology: Rapidly Progressive and Inflammatory Dementias Source Type: research

Bone Marrow Stromal Cells Combined with Oxiracetam Influences the Expression of B-cell Lymphoma 2 in Rats with Ischemic Stroke
This study aimed to investigate the combination effects of bone marrow stromal cells (BMSCs) and oxiracetam for ischemic stroke. Forty Sprague Dawley female rats (220 ± 20 g) were subjected to a 2-hour ischemic middle cerebral artery occlusion (MCAO)–24 hours reperfusion model. The rats were randomly divided into 4 groups. Rats from BMSCs group, oxiracetam group, and BMSCs + oxiracetam group accepted injection of BMSCs (3 × 106 cells), oxiracetam (800 mg/kg), and BMSCs + oxiracetam, respectively.
Source: Journal of Stroke and Cerebrovascular Diseases - September 26, 2014 Category: Neurology Authors: Chunyan Wang, Fangqin Li, Yu Guan, Lei Zhu, Yiping Fei, Jiadong Zhang, Yujun Pan Source Type: research

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