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Total 97 results found since Jan 2013.

Inhibition of Tnf-α R1 signalling can rescue functional cortical plasticity impaired in early post-stroke period
TNFα is one of the key players in stroke progression and can interfere with brain functioning. We previously documented an impairment of experience-dependent plasticity in the cortex neighbouring the stroke-induced lesion which was accompanied with an upregulation of Tumor Necrosis Factor - Tnf-α level in the brain of ischemic mice one week after the stroke. Since TnfR1 signaling is believed to be a major mediator of the cytotoxicity of Tnf-α through activation of caspases, we used an anti-inflammatory intervention aimed at Tnf-α R1 pathway, trying to attenuate the detrimental effect of post-stroke inflammation and inv...
Source: Neurobiology of Aging - June 17, 2015 Category: Neuroscience Authors: Monika Liguz-Lecznar, Renata Zakrzewska, Malgorzata Kossut Source Type: research

Inhibition of Tnf-α R1 signaling can rescue functional cortical plasticity impaired in early post-stroke period
Tumor necrosis factor-α (TNF-α) is one of the key players in stroke progression and can interfere with brain functioning. We previously documented an impairment of experience-dependent plasticity in the cortex neighboring the stroke-induced lesion, which was accompanied with an upregulation of Tnf-α level in the brain of ischemic mice 1 week after the stroke. Because TNF receptor 1 (TnfR1) signaling is believed to be a major mediator of the cytotoxicity of Tnf-α through activation of caspases, we used an anti-inflammatory intervention aimed at Tnf-α R1 pathway, in order to try to attenuate the detrimental effect of po...
Source: Neurobiology of Aging - June 17, 2015 Category: Neuroscience Authors: Monika Liguz-Lecznar, Renata Zakrzewska, Malgorzata Kossut Source Type: research

Brain abscess complicating ischemic embolic stroke in a patient with cardiac papillary fibroelastoma – Case report and literature review
Publication date: Available online 13 May 2019Source: Journal of Clinical NeuroscienceAuthor(s): Monique Boukobza, Sarah Nahmani, Lydia Deschamps, Jean-Pierre LaissyAbstractA 72-year-old man without obvious risk factors initially presented with acute ischemic stroke and fever, without concomitant infection. Broad spectrum antibiotic therapy was initiated. Transthoracic and Transesophageal echocardiography, and cardiac MRI revealed a 20 mm round mass attached to the anterior mitral valve leaflet, suggesting the diagnosis of a benign cardiac tumor or a vegetation. At the site of infarction an abscess of 11 mm in diameter...
Source: Journal of Clinical Neuroscience - May 15, 2019 Category: Neuroscience Source Type: research

Ferroptosis: an emerging therapeutic target in stroke
AbstractStroke is a disastrous neurological disease with high morbidity and mortality. The mechanism of the pathological process is extremely complicated and unclear. Although many basic studies have confirmed some molecular mechanism of brain injury after stroke, these studies cannot effectively translate into treatment and clinical application. Ferroptosis is a form of cell death that is distinct from necrosis, apoptosis, and autophagy morphologically and biochemically, and is characterized by iron‐dependent accumulation of lipid peroxides. Despite ferroptosis being first identified in cancer cells, it was recently ...
Source: Journal of Neurochemistry - March 18, 2021 Category: Neuroscience Authors: Yibo Liu, Yuanjian Fang, Zeyu Zhang, Yujie Luo, Anke Zhang, Cameron Lenahan, Sheng Chen Tags: REVIEW ARTICLE Source Type: research

Long non-coding RNA H19 promotes leukocyte inflammation in ischemic stroke by targeting the miR-29b/C1QTNF6 axis
CONCLUSIONS: Our findings confirm that H19 promotes leukocyte inflammation by targeting the miR-29b/C1QTNF6 axis in cerebral ischemic injury.PMID:35322553 | DOI:10.1111/cns.13829
Source: CNS Neuroscience and Therapeutics - March 24, 2022 Category: Neuroscience Authors: Guangwen Li Xiaoqing Ma Haiping Zhao Junfen Fan Tianwei Liu Yumin Luo Yunliang Guo Source Type: research

Characterization of Astrocytes in the Minocycline-Administered Mouse Photothrombotic Ischemic Stroke Model
In this study, we used a mouse photothrombotic ischemic stroke model to examine the characteristics of astrocytes after the administration of minocycline during ischemic stroke. Minocycline increased astrocyte reactivity and affected the localization of astrocytes in the penumbra region. Molecular characterization revealed that the induced expression of mRNA encoding the fatty acid binding protein 7 (FABP7) by photothrombosis was enhanced by the minocycline administration. Meanwhile, minocycline did not significantly affect the phenotype or class of astrocytes. The expression of Fabp7 mRNA was well correlated with that of ...
Source: Neurochemical Research - July 30, 2022 Category: Neuroscience Authors: Mari Kondo Haruka Okazaki Kei Nakayama Hirofumi Hohjoh Kimie Nakagawa Eri Segi-Nishida Hiroshi Hasegawa Source Type: research

The Mitogen-Activated Protein Kinase (MAPK) Signaling Pathway as a Discovery Target in Stroke
Abstract Protein kinases are critical modulators of a variety of intracellular and extracellular signal transduction pathways, and abnormal phosphorylation events can contribute to disease progression in a variety of diseases. As a result, protein kinases have emerged as important new drug targets for small molecule therapeutics. The mitogen-activated protein kinase (MAPK) signaling pathway transmits signals from the cell membrane to the nucleus in response to a variety of different stimuli. Because this pathway controls a broad spectrum of cellular processes, including growth, inflammation, and stress responses, ...
Source: Journal of Molecular Neuroscience - February 3, 2016 Category: Neuroscience Source Type: research

Ischemic stroke caused by giant cell arteritis associated with pulmonary adenocarcinoma
We describe a 77-year-old man with a sudden onset of dizziness, vomiting, and gait disturbances. Following imaging studies, a diagnosis of bulbar ischemic stroke with left vertebral artery stenosis was made. Based on a history of polymyalgia rheumatica, on laboratory tests, and brain digital subtraction angiography, a diagnosis of GCA was advanced and the patient underwent high-dose steroidal therapy. After a total body 18-FGD PET imaging, a pulmonary adenocarcinoma was found.Vertebral artery involvement is a rare but important occurrence in GCA as it carries a high mortality rate, and may require a vigorous therapeutic ap...
Source: Journal of Clinical Neuroscience - November 5, 2019 Category: Neuroscience Source Type: research

Resveratrol Neuroprotection in Stroke and Traumatic CNS injury
Publication date: Available online 12 August 2015 Source:Neurochemistry International Author(s): Mary Lopez, Robert J. Dempsey, Raghu Vemuganti Resveratrol, a stilbene formed in many plants in response to various stressors, elicits multiple beneficial effects in vertebrates. Particularly, resveratrol was shown to have therapeutic properties in cancer, atherosclerosis and neurodegeneration. Resveratrol-induced benefits are modulated by multiple synergistic pathways that control oxidative stress, inflammation and cell death. Despite the lack of a definitive mechanism, both in vivo and in vitro studies suggest that resve...
Source: Neurochemistry International - August 14, 2015 Category: Neuroscience Source Type: research

Ischemic Stroke Risk Among Adult Brain Tumor Survivors: Evidence to Guide Practice
CONCLUSION: Nurses play a key role in the assessment, prevention, and identifying individuals who are at risk of AIS during brain tumor survivorship. Engaging patients and their caregivers on minimizing their risks of AIS is crucial in the outpatient setting. Annual surveillance visits that include intracranial artery imaging should be used to identify individuals considered most at risk for developing AIS symptoms.
Source: Journal of Neuroscience Nursing - September 9, 2021 Category: Neuroscience Tags: Clinical Nursing Focus Source Type: research

Functional MRI of Letter Cancellation Task Performance in Older Adults
Conclusion The present work is the first to identify neural correlates of the LCT using fMRI and tablet technology in a healthy aging population. Across all ages, the activation was found to be bilateral, including in the cerebellum, superior temporal lobe, precentral gyrus, frontal gyrus, and various occipital and parietal areas. With increasing age, performance generally decreased and brain activity was reduced in the supplementary motor area, middle and inferior frontal gyrus, middle occipital gyrus, putamen and cerebellum. Better LCT performance was correlated with increased activity in the middle frontal gyrus, and r...
Source: Frontiers in Human Neuroscience - April 15, 2019 Category: Neuroscience Source Type: research

Cancer and Cerebrovascular Disease
AbstractPurpose of ReviewTo review the latest information about the interactions between cancer and cerebrovascular disease.Recent FindingsAdditional data support the finding that both ischemic and hemorrhagic stroke are important complications of cancer or its treatment. Reperfusion therapy is being given successfully to patients with stroke complicating cancer.SummaryHemorrhagic stroke may occur with metastatic disease to the brain, coagulopathies from cancer, in particular leukemia, or as complications of chemotherapy. Ischemic stroke also may be a complication of metastatic disease with local invasion of vessels, a pro...
Source: Current Neurology and Neuroscience Reports - August 22, 2019 Category: Neuroscience Source Type: research

Down-Regulation of miRNA-30a Alleviates Cerebral Ischemic Injury Through Enhancing Beclin 1-Mediated Autophagy.
In this study, the effects of miRNA-30a on ischemic injury in N2A cells and cultured cortical neurons after oxygen glucose deprivation (OGD), and mouse brain with MCAO-induced ischemic stroke were evaluated. The results showed that miRNA-30a expression levels were up regulated in the brain of mice after 6 h MCAO without reperfusion, but significantly down regulated in the peri-infarct region of mice with 1 h MCAO/24 h reperfusion and in N2A cells after 1 h OGD/6-48 h reoxygenation. Both the conversion ratio of microtubule-associated protein 1 light chain 3 (LC3)-II/LC3-I and Beclin 1 protein level increased in N2A cel...
Source: Neurochemical Research - April 26, 2014 Category: Neuroscience Authors: Wang P, Liang J, Li Y, Li J, Yang X, Zhang X, Han S, Li S, Li J Tags: Neurochem Res Source Type: research