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Specialty: Neurology
Condition: Stroke
Cancer: Brain Cancers
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Total 371 results found since Jan 2013.
Clinacanthus nutans Mitigates Neuronal Death and Reduces Ischemic Brain Injury: Role of NF- κB-driven IL-1β Transcription
AbstractNeuroinflammation has been shown to exacerbate ischemic brain injury, and is considered as a prime target for the development of stroke therapies.Clinacanthus nutans Lindau (C. nutans) is widely used in traditional medicine for treating insect bites, viral infection and cancer, due largely to its anti-oxidative and anti-inflammatory properties. Recently, we reported that an ethanol extract from the leaf ofC. nutans could protect the brain against ischemia-triggered neuronal death and infarction. In order to further understand the molecular mechanism(s) for its beneficial effects, two experimental paradigms, namely,...
Source: NeuroMolecular Medicine - October 5, 2020 Category: Neurology Source Type: research
Targeting of Perforin Inhibitor into the Brain Parenchyma Via a Prodrug Approach Can Decrease Oxidative Stress and Neuroinflammation and Improve Cell Survival
AbstractThe cytolytic protein perforin has a crucial role in infections and tumor surveillance. Recently, it has also been associated with many brain diseases, such as neurodegenerative diseases and stroke. Therefore, inhibitors of perforin have attracted interest as novel drug candidates. We have previously reported that converting a perforin inhibitor into an L-type amino acid transporter 1 (LAT1)-utilizing prodrug can improve the compound ’s brain drug delivery not only across the blood–brain barrier (BBB) but also into the brain parenchymal cells: neurons, astrocytes, and microglia. The present study evaluated whet...
Source: Molecular Neurobiology - September 24, 2020 Category: Neurology Source Type: research
Iso-Oncotic Albumin Mitigates Brain and Kidney Injury in Experimental Focal Ischemic Stroke
Conclusions: In this model of focal ischemic stroke, only iso-oncotic albumin had a protective effect against brain and kidney damage. Fluid therapy thus requires careful analysis of impact not only on the brain but also on the kidney.
Source: Frontiers in Neurology - September 2, 2020 Category: Neurology Source Type: research
Astrocytic Yes-associated protein attenuates cerebral ischemia-induced brain injury by regulating signal transducer and activator of transcription 3 signaling.
In this study, we investigated whether the expression of nuclear YAP in the astrocytes of rats increased significantly after middle cerebral artery occlusion (MCAO) and its effect on cerebral ischemic injury. We used XMU-MP-1 to trigger localization of YAP into the nucleus and found that XMU-MP-1 treatment decreased ischemia/stroke-induced brain injury including reduced neuronal death and reactive astrogliosis, and extenuated release of interleukin-1β (IL-1β), interleukin-6 (IL-6), and tumor necrosis factor-α (TNF-α). Mechanically, XMU-MP-1 treatment suppressed the expression of phospho-STAT3 (P-STAT3). We established ...
Source: Experimental Neurology - July 31, 2020 Category: Neurology Authors: Huang L, Li S, Dai Q, Zhang A, Yu Q, Du W, Zhao P, Mo Y, Xu K, Chen S, Wang J Tags: Exp Neurol Source Type: research
Mixed Lineage Leukemia 1 Promoted Neuron Apoptosis in Ischemic Penumbra via Regulating ASK-1/TNF- α Complex
This study aimed to explore the underlying mechanism of neuron apoptosis in ischemic penumbra via histone methyltransferase (HMT) mixed lineage leukemia 1 (MLL1) mediated epigenetic pathway. Mouse IS model was established by middle cerebral artery occlusion (MCAO). Mouse primary cortical mixed cells were cultured and treated with oxygen–glucose deprivation (OGD) to simulate IS process. The expressions of apoptosis signal regulating kinase-1 (ASK-1), pASK-1, cleaved caspase-3, ASK-1/serine–threonine kinase receptor-associated protein (STRAP)/14-3-3 complex, ASK-1/tumor necrosis factor-α (TNF-α) complex, and MLL1 in mo...
Source: Frontiers in Neuroanatomy - July 24, 2020 Category: Neurology Source Type: research
Stroke-like migraine attacks after radiation therapy (SMART) syndrome —a case series and review
ConclusionOur extensive review favors MRI, CT, and prolonged EEG monitoring to rule out other differentials and showed that initiation of corticosteroid therapy and antiepileptic treatment were helpful in the resolution of symptoms and prevent recurrences. Therefore, future studies should be focused on early identification and management guidelines for SMART syndrome.
Source: Neurological Sciences - July 12, 2020 Category: Neurology Source Type: research
A Polyphenolic Complex Attenuates Inflammatory Response and Blood-Brain Barrier Disruption.
Abstract
BACKGROUND: Cerebral ischemia causes strong inflammatory response. Neumentix is a dietary supplement containing 14.9% rosmarinic acid and 29.9% total phenolic content, which was proved to be beneficial against inflammatory response. Therefore, we investigated Neumentix's effect on anti-inflammatory and blood brain barrier (BBB) disruption in transient middle cerebral artery occlusion (tMCAO) model mice.
METHODS: After the pretreatment of vehicle or Neumentix 134 mg/kg/d, intraperitoneal injection (i.p.) (containing rosmarinic acid 20mg/kg/d) for 14 days, mice were subjected to tMCAO for 60 min and ke...
Source: Current Neurovascular Research - May 15, 2020 Category: Neurology Authors: Bian Y, Yamashita T, Taira Y, Shang J, Tsunoda K, Feng T, Sasaki R, Liu X, Shi X, Tadokoro K, Nomura E, Matsumoto N, Osakada Y, Omote Y, Takemoto M, Hishikawa N, Ohta Y, Abe K Tags: Curr Neurovasc Res Source Type: research
Cardiac Myxoma as a Rare Cause of Pediatric Arterial Ischemic Stroke: Case Report and Literature Review
Conclusion Neurological presentation of AIS due to cardiac myxoma is similar to that of AIS with other etiologies, although clues suggesting a possible underlying cardiac myxoma can be detected in most cases. A timely diagnosis of cardiac myxoma in patients with AIS may favor prompt identification of candidates for endovascular therapy. Therefore, we suggest that in otherwise-healthy children presenting with AIS, transthoracic echocardiography should be performed early after stroke presentation. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle in Thieme eJournals: Table of contents | Abstract | Full text
Source: Neuropediatrics - May 4, 2020 Category: Neurology Authors: Tona, Clarissa Nosadini, Margherita Pelizza, Maria F. Pin, Jacopo N. Baggio, Laura Boniver, Clementina Gabrieli, Joseph D. Causin, Francesco Toldo, Irene Sartori, Stefano Tags: Review Article Source Type: research
Gene –disease association study of tumor necrosis factor‐α G‐308A gene polymorphism with risk of major depressive disorder: A systematic review and meta‐analysis
ConclusionNeither the allele frequencies nor genotypes of TNF ‐α G‐308A gene could be served as an independent risk factor of depression.
Source: Brain and Behavior - April 18, 2020 Category: Neurology Authors: Xin Wang,
Hongxiu Zhang,
Xianling Cao,
Wei Shi,
Xiaoyu Zhou,
Qian Chen,
Ke Ma Tags: REVIEW ARTICLE Source Type: research
Tissue Plasminogen Activator Promotes TXNIP-NLRP3 Inflammasome Activation after Hyperglycemic Stroke in Mice
AbstractHyperglycemia has been shown to counterbalance the beneficial effects of tissue plasminogen activator (tPA) and increase the risk of intracerebral hemorrhage in ischemic stroke. Thioredoxin interacting protein (TXNIP) mediates hyperglycemia-induced oxidative damage and inflammation in the brain and reduces cerebral glucose uptake/utilization. We have recently reported that TXNIP-induced NLRP3 (NOD-like receptor pyrin domain-containing-3) inflammasome activation contributes to neuronal damage after ischemic stroke. Here, we tested the hypothesis that tPA induces TXNIP-NLRP3 inflammasome activation after ischemic str...
Source: Molecular Neurobiology - March 13, 2020 Category: Neurology Source Type: research
Donepezil promotes neurogenesis via Src signaling pathway in a rat model of chronic cerebral hypoperfusion.
In this study, we investigated whether donepezil could promote SVZ neurogenesis in chronic cerebral hypoperfusion (CCH) injury via Src signaling pathway. In the bilateral carotid artery occlusion (2VO) rat model, we observed more nestin/5-bromo-2'-deoxyuridine (BrdU)-positive cells and doublecortin (DCX)/BrdU-positive cells in the SVZ than that in the sham group. Further, donepezil obviously improved neurologic function after 2VO, induced the greater number of SVZ proliferative NSCs and neuroblasts, and elevated levels of Src, p-FGFR1, p-EGFR, p-Akt and p-Raf in ipsilateral SVZ. Lastly, Src inhibitor KX-01 abolished the be...
Source: Brain Research - March 13, 2020 Category: Neurology Authors: Man J, Cui K, Fu X, Zhang D, Lu Z, Gao Y, Yu L, Li N, Wang J Tags: Brain Res Source Type: research
Human neural stem cells improve early stage stroke outcome in delayed tissue plasminogen activator-treated aged stroke brains.
CONCLUSIONS: Aged stroke mice that received delayed tPA treatment in combination with hNSC transplantation exhibited reduced stroke pathophysiology in comparison to non-transplanted stroke mice with delayed tPA. This suggests that hNSC transplantation may synergize with already existing stroke therapies to benefit a larger stroke patient population.
PMID: 32147438 [PubMed - as supplied by publisher]
Source: Experimental Neurology - March 4, 2020 Category: Neurology Authors: Boese A, Eckert A, Hamblin MH, Lee JP Tags: Exp Neurol Source Type: research
Transcutaneous Electrical Nerve Stimulation in Relieving Neuropathic Pain: Basic Mechanisms and Clinical Applications
AbstractPurpose of ReviewTranscutaneous electrical nerve stimulation (TENS) is widely used as a non-pharmacological approach for pain relief in a variety of clinical conditions. This manuscript aimed to review the basic mechanisms and clinical applications regarding the use of TENS for alleviating the peripheral (PNP) and central neuropathic pain (CNP).Recent FindingsBasic studies on animal models showed that TENS could alleviate pain by modulating neurotransmitters and receptors in the stimulation site and its upper levels, including the spinal cord, brainstem, and brain. Besides, many clinical studies have investigated t...
Source: Current Pain and Headache Reports - February 17, 2020 Category: Neurology Source Type: research
An Embolic Stroke in a Patient With PROC p.Lys193del
We report a 58-year-old woman who suddenly developed brain infarction with weakness of the left lower extremity and left perioral dysesthesia during postoperative tamoxifen therapy for breast cancer and prednisolone therapy for rheumatoid arthritis. Diffusion-weighted images detected multiple areas of hyperintensity in the posterior circulation system of the brain. Despite extensive examinations, we could not identify any embolic sources except hypoplasia of the right vertebral artery. We found decreased activity of protein C against its antigen level (activity: 59% versus antigen: 122%) with enhanced activity of coagulati...
Source: Journal of Stroke and Cerebrovascular Diseases - February 10, 2020 Category: Neurology Authors: Kana Ueki, Kuniyuki Nakamura, Yoshinobu Wakisaka, Shinichi Wada, Yoji Yoshikawa, Shinya Matsumoto, Taeko Hotta, Dongchong Kang, Takanari Kitazono, Tetsuro Ago Tags: Case Report Source Type: research
The combined association of depressive symptoms and C-reactive protein for incident disease risk up to 12 years later. Findings from the English Longitudinal of Ageing (ELSA)
ConclusionA combination of depressive symptoms and CRP was implicated in the onset of CHD, stroke, diabetes/high blood glucose, and pulmonary disease up to 12 years later, reflecting the role of psychobiological processes across multiple disease states.
Source: Brain, Behavior, and Immunity - January 21, 2020 Category: Neurology Source Type: research
