keyword
MENU ▼
Read by QxMD icon Read
search

Stroke neuroprotective

keyword
https://www.readbyqxmd.com/read/28731692/quinolinyl-nitrone-rp19-induces-neuroprotection-after-transient-brain-ischemia
#1
Maria Irene Ayuso, Emma Martinez-Alonso, Mourad Chioua, Alejandro Escobar-Peso, Rafael Gonzalo-Gobernado, Joan Montaner, José Marco-Contelles, Alberto Alcazar
There is a need to develop additional effective therapies for ischemic stroke. Nitrones, which were first developed as reactive oxygen species (ROS)-trapping compounds, have been proposed as neuroprotective agents for ischemic stroke, a ROS-related disorder. The previous reported ROS-trapping compound, quinolyl nitrone RP19, is here being assayed to induce neuroprotection to ischemia-reperfusion injury in three experimental ischemia models: (i), oxygen-glucose deprivation (OGD) on primary neuronal cultures; (ii), transient global cerebral ischemia in four-vessel occlusion model; and (iii), transient focal cerebral ischemia in middle cerebral artery occlusion (tMCAO) model...
July 21, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28729825/dexmedetomidine-protects-mouse-brain-from-ischemia-reperfusion-injury-via-inhibiting-neuronal-autophagy-through-up-regulating-hif-1%C3%AE
#2
Cong Luo, Ming-Wen Ouyang, Ying-Ying Fang, Shu-Ji Li, Quan Zhou, Jun Fan, Zai-Sheng Qin, Tao Tao
Stroke is the leading cause of death in China and produces a heavy socio-economic burden in the past decades. Previous studies have shown that dexmedetomidine (DEX) is neuroprotective after cerebral ischemia. However, the role of autophagy during DEX-mediated neuroprotection after cerebral ischemia is still unknown. In this study, we found that post-conditioning with DEX and DEX+3-methyladenine (3-MA) (autophagy inhibitor) reduced brain infarct size and improved neurological deficits compared with DEX+RAPA (autophagy inducer) 24 h after transient middle cerebral artery artery occlusion (tMCAO) model in mice...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28725658/mesenchymal-stem-cells-overexpressing-interleukin-10-promote-neuroprotection-in-experimental-acute-ischemic-stroke
#3
Masataka Nakajima, Chikako Nito, Kota Sowa, Satoshi Suda, Yasuhiro Nishiyama, Aki Nakamura-Takahashi, Yuko Nitahara-Kasahara, Kiwamu Imagawa, Tohru Hirato, Masayuki Ueda, Kazumi Kimura, Takashi Okada
Interleukin (IL)-10 is a contributing factor to neuroprotection of mesenchymal stem cell (MSC) transplantation after ischemic stroke. Our aim was to increase therapeutic effects by combining MSCs and ex vivo IL-10 gene transfer with an adeno-associated virus (AAV) vector using a rat transient middle cerebral artery occlusion (MCAO) model. Sprague-Dawley rats underwent 90 min MCAO followed by intravenous administration of MSCs alone or IL-10 gene-transferred MSCs (MSC/IL-10) at 0 or 3 hr after ischemia reperfusion...
September 15, 2017: Molecular Therapy. Methods & Clinical Development
https://www.readbyqxmd.com/read/28724170/circulating-insulin-like-growth-factor-1-and-insulin-like-growth-factor-binding-protein-3-predict-three-months-outcome-after-ischemic-stroke
#4
Moritz Armbrust, Hans Worthmann, Reinhard Dengler, Helmut Schumacher, Ralf Lichtinghagen, Christoph Cyrill Eschenfelder, Matthias Endres, Martin Ebinger
Reports on neuroprotective effects of Insulin-like growth factor-1 (IGF-1) and Insulin-like growth factor binding protein-3 (IGFBP-3) in ischemic brain tissue are inconsistent. The aim of this study was to determine if plasma levels of IGF-1 and IGFBP-3 in acute stroke patients are indicative of 3 months functional outcome. Plasma levels were measured via chemiluminescence immunoassay in heparin blood samples of patients included in the EARLY trial (NCT00562588). Plasma samples were drawn on admission and 8 days post-stroke...
July 2017: Experimental and Clinical Endocrinology & Diabetes
https://www.readbyqxmd.com/read/28717354/blood-pressure-and-penumbral-sustenance-in-stroke-from-large-vessel-occlusion
#5
REVIEW
Robert W Regenhardt, Alvin S Das, Christopher J Stapleton, Ronil V Chandra, James D Rabinov, Aman B Patel, Joshua A Hirsch, Thabele M Leslie-Mazwi
The global burden of stroke remains high, and of the various subtypes of stroke, large vessel occlusions (LVOs) account for the largest proportion of stroke-related death and disability. Several randomized controlled trials in 2015 changed the landscape of stroke care worldwide, with endovascular thrombectomy (ET) now the standard of care for all eligible patients. With the proven success of this therapy, there is a renewed focus on penumbral sustenance. In this review, we describe the ischemic penumbra, collateral circulation, autoregulation, and imaging assessment of the penumbra...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28714328/neuronal-expression-of-the-mitochondrial-protein-prohibitin-confers-profound-neuroprotection-in-a-mouse-model-of-focal-cerebral-ischemia
#6
Anja Kahl, Corey J Anderson, Liping Qian, Henning Voss, Giovanni Manfredi, Costantino Iadecola, Ping Zhou
The mitochondrial protein prohibitin (PHB) has emerged as an important modulator of neuronal survival in different injury modalities . We previously showed that viral gene transfer of PHB protects CA1 neurons from delayed neurodegeneration following transient forebrain ischemia through mitochondrial mechanisms. However, since PHB is present in all cell types, it is not known if its selective expression in neurons is protective, and if the protection occurs also in acute focal ischemic brain injury, the most common stroke type in humans...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28713891/hypothermia-exerts-early-neuroprotective-effects-involving-protein-conjugation-of-sumo%C3%A2-2-3-in-a-rat-model-of-middle-cerebral-artery-occlusion
#7
Gang Li, Xiaozhi Liu, Zhiguo Su, Dong Zhang
How hypothermia serves an early protective role against cerebral ischemia remains to be determined. The small ubiquitin‑related modifier protein (SUMO) functions as a post‑translational modification system and SUMO‑2/3 subtypes are often activated in early stress. The present study investigated changes in the protein level of SUMO using western blotting and immunocytochemistry when neurons were exposed to oxygen‑glucose deprivation (OGD) in vitro, as well as in a rat model of middle cerebral artery occlusion (MCAO) in vivo...
July 15, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28711402/beneficial-effects-of-angiotensin-ii-receptor-blockers-in-brain-disorders
#8
REVIEW
J M Saavedra
A canonical brain Renin-Angiotensin System (RAS), like the canonical peripheral RAS, has long been proposed as a major regulator of brain function. Because of methodological limitations, however, this system is in urgent need of critical revision. The Angiotensin II AT1 receptors have been confirmed as key factors in the regulation of brain function, and AT1 receptor over activity has been established as a major and early injury factor in the development of many brain diseases. Consequently, Angiotensin Receptor Blockers (ARBs), compounds widely used to treat cardiovascular and metabolic disorders, are excellent candidates for repurposing for the treatment of brain disorders...
July 12, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28711292/perioperative-stroke-after-cerebral-aneurysm-clipping-risk-factors-and-postoperative-impact
#9
Ahmed I Kashkoush, Brian T Jankowitz, Chris Nguyen, Paul A Gardner, Daniel A Wecht, Robert M Friedlander, Yue-Fang Chang, Miguel Habeych, Donald Crammond, Jeffrey Balzer, Parthasarathy D Thirumala
Stroke is a devastating complication after intracranial aneurysm clipping. Understanding the risk factors that prognosticate perioperative stroke may help to identify patients that would benefit from neuroprotective therapy. This study assesses patient-specific independent predictors of perioperative stroke in relation to surgical aneurysm clipping. Additionally, this study evaluates the postoperative complications of stroke. We performed a retrospective chart review of 437 patients with ruptured and unruptured intracranial aneurysms, which underwent surgical clipping from 2006 to 2013...
July 12, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28710330/assessment-of-the-interaction-of-age-and-sex-on-90-day-outcome-after-intracerebral-hemorrhage
#10
Michael L James, Carl D Langefeld, Padmini Sekar, Charles J Moomaw, Mitchell S V Elkind, Bradford B Worrall, Kevin N Sheth, Sharyl R Martini, Jennifer Osborne, Daniel Woo
OBJECTIVE: Because age affects hormonal production differently in women compared with men, we sought to define sex and age interactions across a multiracial/ethnic population after intracerebral hemorrhage (ICH) to uncover evidence that loss of gonadal hormone production would result in loss of the known neuroprotective effects of gonadal hormones. METHODS: Clinical and radiographic data from participants in the Ethnic/Racial Variations of Intracerebral Hemorrhage study and the Genetic and Environmental Risk Factors for Hemorrhagic Stroke study prior to December 2013 were used...
July 14, 2017: Neurology
https://www.readbyqxmd.com/read/28707040/non-invasive-remote-ischemic-postconditioning-stimulates-neurogenesis-during-the-recovery-phase-after-cerebral-ischemia
#11
Dan Huang, Honghong Liu, Yun Qu, Pu Wang
Ischemic postconditioning (IPostC) has been reported to have neuroprotection against ischemic diseases, and one cycle of IPostC induces neurogenesis when treated nearby. To expanding these effects, we explored the effects of repetitively remote IPostC (NRIPostC) on neurogenesis in the subgranular zone (SGZ) and subentricular zone (SVZ) during stroke recovery. Animals underwent transient cerebral ischemia were treated with vehicle or NRIPostC immediately after reperfusion. Neurological severity scores, infarct size, neurogenesis, and protein expression levels of nestin and GFAP were quantified at 3d, 7d, 14d, 21d and 28d post-ischemia...
July 13, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28704580/efficient-discovery-and-capture-of-new-neuronal-nitric-oxide-synthase-postsynaptic-density-protein-95-uncouplers-from-herbal-medicines-using-magnetic-molecularly-imprinted-polymers-as-artificial-antibodies
#12
Xiaoli Gu, Jiaojiao Huang, Lei Zhang, Yu Zhang, Chong-Zhi Wang, Chenghong Sun, Dandan Yao, Fei Li, Lina Chen, Chun-Su Yuan
In the scope of stroke treatment, new neuronal nitric oxide synthase-postsynaptic density protein-95 uncouplers from herbal medicines were discovered and captured. To do so, highly selective magnetic molecularly imprinted polymers with a core-shell structure were prepared as artificial antibodies. According to the results of computational simulations, we designed and synthesized various polymers with varying amounts and types of template, functional monomer, cross-linker and solvent. Characterization and performance tests revealed that the most appropriate artificial antibodies showed uniform spherical morphologies, large adsorption capacities, fast binding kinetics, high selectivity and quick separation...
July 13, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/28699721/comparison-of-pre-and-post-ischemic-treatment-of-telmisartan-and-nimodipine-combination-in-experimentally-induced-cerebral-ischemia
#13
(no author information available yet)
Time dependent intervention plays a crucial role in preventing neurodegeneration after ischemic insult. The intensity of excitotoxicity is greater in the secondary reperfusion phase (2-4 h) compared to the primary occlusion phase (2 h), which could be attributed to secondary elevation of excitatory amino acids (EAA) in cerebral ischemia. In the present study, we tried to assess the neuroprotective effects of telmisartan and nimodipine (TM-NM) combination on the secondary reperfusion phase. The drug treatments were made immediately after reperfusion and their effects were compared with pre-treatment...
September 2016: Indian Journal of Experimental Biology
https://www.readbyqxmd.com/read/28693689/neuroprotective-effects-of-grape-seed-procyanidin-extract-on-ischemia-reperfusion-brain-injury-%C3%A2
#14
Kong Xiangyi, Guan Jian, Gong Shun, Wang Renzhi
<strong>Objective</strong> Oxidative stress (OS) plays a crucial role in ischemic stroke. Grape seed procyanidin extract (GSPE) was reported to be a critical regulator of OS. We hypothesized that GSPE might also be protective in ischemia-reperfusion brain injury. This study aimed to explore whether GSPE administration can protect mice from ischemia-reperfusion brain injury.<strong>Methods</strong> Transient middle cerebral artery occlusion (MCAO) was conducted followed by reperfusion for 24 hours to make ischemia-reperfusion brain injury in mice that received GSPE (MCAOG, n=60) or normal saline (MCAONS, n=60)...
June 10, 2017: Chinese Medical Sciences Journal, Chung-kuo i Hsüeh K'o Hsüeh Tsa Chih
https://www.readbyqxmd.com/read/28692217/-magnesium-in-daily-practice
#15
Dany Minetto, Jacques Serratrice, Jérôme Stirnemann
The magnesium is the 4th cation in the human body behind sodium, potassium and calcium. It is often referred to as the forgotten cation of modern medicine because of a lack of knowledge about its physiology and its potential medical use. Recent medical literature has shown renewed interest for the magnesium with publications about its role in diversified fields from prevention of muscular cramps, cardiovascular risk factors prevention trough to neuroprotection in stroke. However, we cannot recommend the use of magnesium in adults in our clinical practice, beyond the simple correction of hypomagnesemia, pre-eclampsia and possibly the treatment of torsades de pointes...
October 19, 2016: Revue Médicale Suisse
https://www.readbyqxmd.com/read/28690033/schisantherin-a-attenuates-ischemia-reperfusion-induced-neuronal-injury-in-rats-via-regulation-of-tlr4-and-c5ar1-signaling-pathways
#16
Yun Wei Shi, Xiao Chuan Zhang, Chen Chen, Miao Tang, Zhi Wei Wang, Xin Miao Liang, Fei Ding, Cai Ping Wang
Toll-like receptor 4 (TLR4) and C5aR1 (CD88) have been recognized as potential therapeutic targets for the reduction of inflammation and secondary damage and improvement of outcome after ischemia and reperfusion (I/R). The inflammatory responses which induce cell apoptosis and necrosis after I/R brain injury lead to a limited process of neural repair. To further comprehend how these targets function in I/R state, we investigated the pathological changes and TLR4 and C5aR1 signaling pathways in vitro and in vivo models of I/R brain injury in this study...
July 6, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28689387/ginkgolide-b-modulates-bdnf-expression-in-acute-ischemic-stroke
#17
Hu Wei, Tao Sun, Yanghua Tian, Kai Wang
OBJECTIVE: To investigate the neuroprotective effects of Ginkgolide B (GB) against ischemic stroke-induced injury in vivo and in vitro, and further explore the possible mechanisms concerned. METHODS: Transient middle cerebral artery occlusion (tMCAO) mice and oxygen-glucose deprivation/reoxygenation (OGD/R)-treated N2a cells were used to explore the neuroprotective effects of GB. The expression of brain-derived neurotrophic factor (BDNF) was detected via Western blot and qRT-PCR...
July 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28688998/targeted-temperature-management-in-the-icu-guidelines-from-a-french-expert-panel
#18
Alain Cariou, Jean-Francois Payen, Karim Asehnoune, Gerard Audibert, Astrid Botte, Olivier Brissaud, Guillaume Debaty, Sandrine Deltour, Nicolas Deye, Nicolas Engrand, Gilles Francony, Stéphane Legriel, Bruno Levy, Philippe Meyer, Jean-Christophe Orban, Sylvain Renolleau, Bernard Vigue, Laure De Saint Blanquat, Cyrille Mathien, Lionel Velly
Over the recent period, the use of induced hypothermia has gained an increasing interest for critically ill patients, in particular in brain-injured patients. The term "targeted temperature management" (TTM) has now emerged as the most appropriate when referring to interventions used to reach and maintain a specific level temperature for each individual. TTM may be used to prevent fever, to maintain normothermia, or to lower core temperature. This treatment is widely used in intensive care units, mostly as a primary neuroprotective method...
July 5, 2017: Anaesthesia, Critical Care & Pain Medicine
https://www.readbyqxmd.com/read/28686542/polyunsaturated-fatty-acids-and-endocannabinoids-in-health-and-disease
#19
Hércules Rezende Freitas, Alinny Rosendo Isaac, Renato Malcher-Lopes, Bruno Lourenço Diaz, Isis Hara Trevenzoli, Ricardo Augusto De Melo Reis
Polyunsaturated fatty acids (PUFAs) are lipid derivatives of omega-3 (docosahexaenoic acid, DHA, and eicosapentaenoic acid, EPA) or of omega-6 (arachidonic acid, ARA) synthesized from membrane phospholipids and used as a precursor for endocannabinoids (ECs). They mediate significant effects in the fine-tune adjustment of body homeostasis. Phyto- and synthetic cannabinoids also rule the daily life of billions worldwide, as they are involved in obesity, depression and drug addiction. Consequently, there is growing interest to reveal novel active compounds in this field...
July 7, 2017: Nutritional Neuroscience
https://www.readbyqxmd.com/read/28684048/dihydrocapsaicin-dhc-enhances-the-hypothermia-induced-neuroprotection-following-ischemic-stroke-via-pi3k-akt-regulation-in-rat
#20
Di Wu, Jingfei Shi, Omar Elmadhoun, Yunxia Duan, Hong An, Jun Zhang, Xiaoduo He, Ran Meng, Xiangrong Liu, Xunming Ji, Yuchuan Ding
OBJECTIVE: Hypothermia has demonstrated neuroprotection following ischemia in preclinical studies while its clinical application is still very limited. The aim of this study was to explore whether combining local hypothermia in ischemic territory achieved by intra-arterial cold infusions (IACIs) with pharmacologically induced hypothermia enhances therapeutic outcomes, as well as the underlying mechanism. METHODS: Sprague-Dawley rats were subjected to right middle cerebral artery occlusion (MCAO) for 2 h using intraluminal hollow filament...
July 3, 2017: Brain Research
keyword
keyword
83952
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"