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Total 2156 results found since Jan 2013.

Rm-02 * long-term survival in glioblastoma patients following stroke: a non-consecutive case series
CONCLUSION: Long-term survival with glioblastoma is uncommon, particularly following recurrence, and particularly in the absence of ongoing treatment. Though stroke is in general a poor prognostic factor for patients with glioblastoma, here we highlight the possibility that the acute vascular disruption that results from strokes can occasionally arrest tumor growth. Although endovascular embolization is unlikely to ever be considered an appropriate treatment for glioblastoma, these findings support the notion that vascular disrupting agents and endovascular therapies that are limited to a single vascular territory may have...
Source: Neuro-Oncology - November 3, 2014 Category: Cancer & Oncology Authors: Hu, J., Phuphanich, S., Fan, X., Rudnick, J., Prasad, R. Tags: RESISTANCE/RECURRENCE MECHANISMS Source Type: research

Imaging of amide proton transfer and nuclear Overhauser enhancement in ischemic stroke with corrections for competing effects
This study may help us to better understand the contrast mechanisms of APT and NOE imaging in ischemic stroke, and may also establish a framework for future stroke measurements using CEST imaging with spillover, MT and T1 corrections. Copyright © 2014 John Wiley & Sons, Ltd. Amide proton transfer (APT) and nuclear Overhauser enhancement (NOE) images were acquired in rats with ischemic stroke and analyzed using corrections for radiofrequency (RF) spillover, magnetization transfer (MT) and T1 effects. Compared with the conventional three‐offset method (APT*), the corrected APT (apparent exchange‐dependent relaxation...
Source: NMR in Biomedicine - December 7, 2014 Category: Radiology Authors: Hua Li, Zhongliang Zu, Moritz Zaiss, Imad S. Khan, Robert J. Singer, Daniel F. Gochberg, Peter Bachert, John C. Gore, Junzhong Xu Tags: Research article Source Type: research

The Pediatric Stroke Code: Early Management of the Child with Stroke
Stroke in children is estimated to occur as frequently as brain tumors, and acute presentations should be considered a neurologic emergency. Although stroke is less common in children than in adults, the long-term morbidity and societal impact of stroke in children likely exceeds that in adults.1 Lessons from adult stroke trials underscore the need for early therapy to prevent complications and improve outcomes. In children, the prompt diagnosis of stroke is challenging, and a delay in diagnosis is a major impediment to initiating therapy.
Source: The Journal of Pediatrics - April 30, 2015 Category: Pediatrics Authors: Jorina Elbers, Mark S. Wainwright, Catherine Amlie-Lefond Tags: Medical Progress Source Type: research

Intranasal Delivery of Apelin-13 Is Neuroprotective and Promotes Angiogenesis After Ischemic Stroke in Mice
This study demonstrates a noninvasive intranasal delivery of apelin-13 after stroke, suggesting that the reduced inflammatory activities, decreased cell death, and increased angiogenesis contribute to the therapeutic benefits of apelin-13.
Source: ASN Neuro - September 21, 2015 Category: Neuroscience Authors: Chen, D., Lee, J., Gu, X., Wei, L., Yu, S. P. Tags: Original Article Source Type: research

Heat shock protein 90 inhibition by 17-Dimethylaminoethylamino-17-demethoxygeldanamycin protects blood-brain barrier integrity in cerebral ischemic stroke.
Authors: Qi J, Liu Y, Yang P, Chen T, Liu XZ, Yin Y, Zhang J, Wang F Abstract Metalloproteinase (MMP)9 plays a pivotal role in ischemic stroke induced blood brain barrier (BBB) disruption. Correlation between HSP90 and MMP9 in several diseases prompted us to evaluate the efficacy of HSP90 inhibition as a novel approach to protect BBB integrity in ischemic stroke. ELISA was used to detect HSP90α and MMP9 in serum samples of stroke patients, which showed that HSP90α significantly correlated with MMP9 among 63 serum samples of stroke patients. Male C57/BL6 mice were pretreated with 17-Dimethylaminoethylamino-17-deme...
Source: American Journal of Translational Research - December 26, 2015 Category: Research Tags: Am J Transl Res Source Type: research

Endothelial Cell-Derived von Willebrand Factor Is the Major Determinant That Mediates von Willebrand Factor-Dependent Acute Ischemic Stroke by Promoting Postischemic Thrombo-Inflammation.
CONCLUSIONS: Plt-VWF, either in presence or absence of ADAMTS13, partially contributes to VWF-dependent injury and postischemic thrombo-inflammation after stroke. EC-VWF is the major determinant that mediates VWF-dependent ischemic stroke by promoting postischemic thrombo-inflammation. PMID: 27444201 [PubMed - as supplied by publisher]
Source: Arteriosclerosis, Thrombosis and Vascular Biology - July 20, 2016 Category: Cardiology Authors: Dhanesha N, Prakash P, Doddapattar P, Khanna I, Pollpeter MJ, Nayak MK, Staber JM, Chauhan AK Tags: Arterioscler Thromb Vasc Biol Source Type: research

Mesenchymal stem cell ‐based treatments for stroke, neural trauma, and heat stroke
ConclusionThis review offers a testable platform for targeting microglial‐mediated cytokines in clinical trials based upon the rational design of MSC therapy in the future. MSCs that are derived from the placenta provide a great choice for stem cell therapy. Although targeting the microglial activation is an important approach to reduce the burden of the injury, it is not the only one. This review focuses on this specific aspect. Ischemic stroke, neural trauma, and heatstroke all cause cerebral ischemia‐related deficits. Exogenous MSC therapy is promising as a means of augmenting brain ischemia‐induced deficits. MSC...
Source: Brain and Behavior - August 2, 2016 Category: Neurology Authors: Yogi Chang ‐Yo Hsuan, Cheng‐Hsien Lin, Ching‐Ping Chang, Mao‐Tsun Lin Tags: Review Source Type: research

Activation of σ1 and σ2 receptors by afobazole increases glial cell survival and prevents glial cell activation and nitrosative stress after ischemic stroke
This article is protected by copyright. All rights reserved.
Source: Journal of Neurochemistry - August 3, 2016 Category: Neuroscience Authors: C. Katnik, A. Garcia, A. A. Behensky, I.E. Yasny, A. M. Shuster, S. B. Seredenin, A. V. Petrov, J. Cuevas Tags: Original Article Source Type: research

Novel therapeutic transplantation of induced neural stem cells for stroke.
In this study, we used a mouse model of transient middle cerebral artery occlusion (tMCAO). iNSCs (5 × 105) were injected directly into the ipsilateral striatum and cortex 24 hours after tMCAO. Histological analysis was performed at 7 days, 28 days, and 8 months after tMCAO. We found that iNSC transplantation successfully improved the survival rate of stroke model mice with significant functional recovery from the stroke. The fate of engrafted iNSCs was that the majority of iNSCs had differentiated into astroglial cells but not into neural cells in both the sham-operated brain and the post-stroke brain without forming a t...
Source: Cell Transplantation - September 19, 2016 Category: Cytology Authors: Yamashita T, Liu W, Matsumura Y, Miyagi R, Zhai Y, Kusaki M, Hishikawa N, Ohta Y, Kim SM, Kwak TH, Han DW, Abe K Tags: Cell Transplant Source Type: research

Selective Non-nuclear Estrogen Receptor Activation Decreases Stroke Severity and Promotes Functional Recovery in Female Mice.
Abstract Estrogens provide neuroprotection in animal models of stroke, but uterotrophic effects and cancer risk limit translation. Classical estrogen receptors (ER) serve as transcription factors, whereas non-nuclear ER govern numerous cell processes and exert beneficial cardiometabolic effects without uterine or breast cancer growth in mice. Here we determined how non-nuclear ER stimulation with a pathway-preferential estrogen (PaPE-1) impacts stroke outcome in mice.Ovariectomized female mice received vehicle, estradiol (E2), or PaPE-1 before and following transient middle cerebral artery occlusion (tMCAo). MRI a...
Source: Endocrinology - September 25, 2018 Category: Endocrinology Authors: Selvaraj UM, Zuurbier K, Whoolery C, Plautz EJ, Chambliss KL, Kong X, Zhang S, Kim SH, Katzenellenbogen BS, Katzenellenbogen JA, Mineo C, Shaul PW, Stowe AM Tags: Endocrinology Source Type: research

D-dimer > 2.785  μg/ml and multiple infarcts ≥3 vascular territories are two characteristics of identifying cancer-associated ischemic stroke patients.
CONCLUSIONS: D-dimer >2.785 μg/ml may be an effective cutoff value and a sensitive index for identifying CAIS patients. AMBIs in ≥3 vascular territories and AMBIs in both the anterior and posterior circulations are two imaging characteristics of CAIS. PMID: 30317943 [PubMed - in process]
Source: Neurological Research - October 17, 2018 Category: Neurology Tags: Neurol Res Source Type: research

A cross-sectional study to assess the association between major depression and inflammatory markers in patients with acute ischemic stroke.
Conclusion: This study suggests that in patients who have experienced AIS, there is no significant relationship between major depression and basal proinflammatory cytokines (TNF-α, IL-1 β, IL-18), BDNF, and NSE. PMID: 31142907 [PubMed]
Source: Indian Journal of Psychiatry - June 1, 2019 Category: Psychiatry Tags: Indian J Psychiatry Source Type: research

Mediterranean diet: The role of long-chain ω-3 fatty acids in fish; polyphenols in fruits, vegetables, cereals, coffee, tea, cacao and wine; probiotics and vitamins in prevention of stroke, age-related cognitive decline, and Alzheimer disease.
Authors: Román GC, Jackson RE, Gadhia R, Román AN, Reis J Abstract The mechanisms of action of the dietary components of the Mediterranean diet are reviewed in prevention of cardiovascular disease, stroke, age-associated cognitive decline and Alzheimer disease. A companion article provides a comprehensive review of extra-virgin olive oil. The benefits of consumption of long-chain ω-3 fatty acids are described. Fresh fish provides eicosapentaenoic acid while α-linolenic acid is found in canola and soybean oils, purslane and nuts. These ω-3 fatty acids interact metabolically with ω-6 fatty acids mainly linoleic...
Source: Revue Neurologique - September 16, 2019 Category: Neurology Tags: Rev Neurol (Paris) Source Type: research

Pharmacological hypothermia induced neurovascular protection after severe stroke of transient middle cerebral artery occlusion in mice.
Abstract Therapeutic hypothermia is a potential protective strategy after stroke. The present study evaluated the neurovascular protective potential of pharmacological hypothermia induced by the neurotensin receptor 1 agonist HPI-201 after severe ischemic stroke. Adult C57BL/6 mice were subjected to filament insertion-induced occlusion of the middle cerebral artery (60 min MCAO). HPI-201 was i.p. injected 120 min after the onset of MCAO to initiate and maintain the body temperature at 32-33°C for 6 hrs. The infarct volume, cell death, integrity of the blood brain barrier (BBB) and neurovascular unit (NVU), inflam...
Source: Experimental Neurology - November 22, 2019 Category: Neurology Authors: Zhao Y, Wei ZZ, Lee JH, Gu X, Sun J, Dix TA, Wei L, Yu SP Tags: Exp Neurol Source Type: research

The protective effect of polyethylene glycol-conjugated urokinase nanogels in rat models of ischemic stroke when administrated outside the usual time window.
In conclusion, through the inhibition of LRP/NF-κB/Cox-2 pathway, the Caspase cascade and activation of NMDARs, administration of PEG-UK outside the usual time window could still exert protective effects in pMCAO rats through the maintenance of the integrity of BBB and the inhibition of apoptosis and excito-neurotoxicity. PMID: 31955887 [PubMed - as supplied by publisher]
Source: Biochemical and Biophysical Research communications - January 15, 2020 Category: Biochemistry Authors: Cui W, Liu R, Jin H, Huang Y, Liu W, He M Tags: Biochem Biophys Res Commun Source Type: research