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Stroke inflammation

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https://www.readbyqxmd.com/read/28212985/nonsteroidal-anti-inflammatory-drugs-in-clinical-and-experimental-epilepsy
#1
REVIEW
Beatrice Mihaela Radu, Florin Bogdan Epureanu, Mihai Radu, Paolo Francesco Fabene, Giuseppe Bertini
Current antiepileptic drugs have limited efficacy and provide little or no benefits in 30% of the patients. Given that a role for brain inflammation in epilepsy has been repeatedly reported in recent years, the potential of anti-inflammatory drugs should be explored in depth, as they may provide new therapeutical approaches in preventing or reducing epileptogenesis. Here, we review preclinical (both in vivo and in vitro) and clinical epilepsy studies in which nonsteroidal antiinflammatory drugs (NSAIDs), i...
February 9, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/28212524/role-of-nrf2-and-protective-effects-of-metformin-against-tobacco-smoke-induced-cerebrovascular-toxicity
#2
Shikha Prasad, Ravi K Sajja, Mohammad Abul Kaisar, Jee Hyun Park, Heidi Villalba, Taylor Liles, Thomas Abbruscato, Luca Cucullo
Cigarette smoking (CS) is associated with vascular endothelial dysfunction in a causative way primarily related to the TS content of reactive oxygen species (ROS), nicotine, and inflammation. TS promotes glucose intolerance and increases the risk of developing type-2 diabetes mellitus (2DM) with which it shares other pathogenic traits including the high risk of cerebrovascular and neurological disorders like stroke via ROS generation, inflammation, and blood-brain barrier (BBB) impairment. Herein we provide evidence of the role played by nuclear factor erythroid 2-related factor (Nrf2) in CS-induced cerebrobvascular/BBB impairments and how these cerebrovascular harmful effects can be circumvented by the use of metformin (MF; a widely prescribed, firstline anti-diabetic drug) treatment...
February 12, 2017: Redox Biology
https://www.readbyqxmd.com/read/28211170/endothelial-glycocalyx-as-a-critical-signalling-platform-integrating-the-extracellular-haemodynamic-forces-and-chemical-signalling
#3
REVIEW
Ye Zeng
The glycocalyx covers the human mammalian cells and plays important roles in stroke, inflammation and atherosclerosis. It has also been shown to be involved in endothelial mechanotransduction of shear stress. Shear stress induces the remodelling of the major component of the glycocalyx including glypican-1, a cell membrane heparan sulphate proteoglycan. Other factors, such as sphingosine-1-phosphate (S1P), protect the glycocalyx against syndecan-1 ectodomain shedding and induce the synthesis of heparan sulphate...
February 17, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28210215/tryptanthrin-suppresses-the-activation-of-the-lps-treated-bv2-microglial-cell-line-via-nrf2-ho-1-antioxidant-signaling
#4
Young-Won Kwon, So Yeong Cheon, Sung Yun Park, Juhyun Song, Ju-Hee Lee
Microglia are the resident macrophages in the central nervous system (CNS) and play essential roles in neuronal homeostasis and neuroinflammatory pathologies. Recently, microglia have been shown to contribute decisively to neuropathologic processes after ischemic stroke. Furthermore, natural compounds have been reported to attenuate inflammation and pathologies associated with neuroinflammation. Tryptanthrin (indolo[2,1-b]quinazoline-6,12-dione) is a phytoalkaloid with known anti-inflammatory effects in cells...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28209220/very-low-density-lipoprotein-associated-apolipoproteins-predict-cardiovascular-events-and-are-lowered-by-inhibition%C3%A2-of%C3%A2-apoc-iii
#5
Raimund Pechlaner, Sotirios Tsimikas, Xiaoke Yin, Peter Willeit, Ferheen Baig, Peter Santer, Friedrich Oberhollenzer, Georg Egger, Joseph L Witztum, Veronica J Alexander, Johann Willeit, Stefan Kiechl, Manuel Mayr
BACKGROUND: Routine apolipoprotein (apo) measurements for cardiovascular disease (CVD) are restricted to apoA-I and apoB. Here, the authors measured an unprecedented range of apolipoproteins in a prospective, population-based study and relate their plasma levels to risk of CVD. OBJECTIVES: This study sought to measure apolipoproteins directly by mass spectrometry and compare their associations with incident CVD and to obtain a system-level understanding of the correlations of apolipoproteins with the plasma lipidome and proteome...
February 21, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28207570/international-survey-of-critically-ill-children-with-acute-neurologic-insults-the-prevalence-of-acute-critical-neurological-disease-in-children-a-global-epidemiological-assessment-study
#6
Ericka L Fink, Patrick M Kochanek, Robert C Tasker, John Beca, Michael J Bell, Robert S B Clark, Jamie Hutchison, Monica S Vavilala, Anthony Fabio, Derek C Angus, R Scott Watson
OBJECTIVE: The international scope of critical neurologic insults in children is unknown. Our objective was to assess the prevalence and outcomes of children admitted to PICUs with acute neurologic insults. DESIGN: Prospective study. SETTING: Multicenter (n = 107 PICUs) and multinational (23 countries, 79% in North America and Europe). PATIENTS: Children 7 days to 17 years old admitted to the ICU with new traumatic brain injury, stroke, cardiac arrest, CNS infection or inflammation, status epilepticus, spinal cord injury, hydrocephalus, or brain mass...
February 15, 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28207191/cysteine-proteases-in-atherosclerosis
#7
REVIEW
Tommy Weiss Sadan, Israel Gotsman, Galia Blum
Atherosclerosis predisposes patients to cardiovascular diseases, such as myocardial infarction and stroke. Instigation of vascular injury is triggered by retention of lipids and inflammatory cells in the vascular endothelium. Whereas these vascular lesions develop in young adults and are mostly considered harmless, over time persistent inflammatory and remodeling processes will ultimately damage the arterial wall and cause a thrombotic event due to exposure of tissue factors into the lumen. Evidence from human tissues and pre-clinical animal models have clearly established the role of cathepsin cysteine proteases in the development and progression of vascular lesions...
February 16, 2017: FEBS Journal
https://www.readbyqxmd.com/read/28199737/inhibition-of-trpv1-confers-neuroprotection-reduces-tnf-%C3%AE-and-increases-il-10-in-a-rat-stroke-model
#8
Elham Hakimizadeh, Ali Shamsizadeh, Ali Roohbakhsh, Mohammad Kazemi Arababadi, Mohammad Reza Hajizadeh, Mehdi Shariati, Mohammad Reza Rahmani, Mohammad Allahtavakoli
Stroke is a major cause of mortality and long-term disability in adults. TRPV1 plays a crucial role in neuroinflammation. In the current study, the effects of TRPV1 agonist (capsaicin) and antagonist (AMG9810) on cerebral ischemia were investigated. Forty male Wistar rats were assigned to the following experimental groups: sham, vehicle) ischemic), AMG9810 (selective TRPV1 antagonist, 0.5 mg/kg; 3 h after stroke), and capsaicin (1 mg/kg; 3 h after stroke). Stroke was induced by permanent middle cerebral artery occlusion and neurological deficits were evaluated 1, 3, and 7 days after stroke...
February 15, 2017: Fundamental & Clinical Pharmacology
https://www.readbyqxmd.com/read/28194400/eating-the-dead-to-keep-atherosclerosis-at-bay
#9
REVIEW
Megan L Brophy, Yunzhou Dong, Hao Wu, H N Ashiqur Rahman, Kai Song, Hong Chen
Atherosclerosis is the primary cause of coronary heart disease (CHD), ischemic stroke, and peripheral arterial disease. Despite effective lipid-lowering therapies and prevention programs, atherosclerosis is still the leading cause of mortality in the United States. Moreover, the prevalence of CHD in developing countries worldwide is rapidly increasing at a rate expected to overtake those of cancer and diabetes. Prominent risk factors include the hardening of arteries and high levels of cholesterol, which lead to the initiation and progression of atherosclerosis...
2017: Frontiers in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28192452/increased-risk-of-dementia-in-patients-hospitalized-with-acute-kidney-injury-a-nationwide-population-based-cohort-study
#10
Hsin-Hsi Tsai, Ruoh-Fang Yen, Cheng-Li Lin, Chia-Hung Kao
PURPOSE: To determine whether acute kidney injury (AKI) is a risk factor for dementia. METHODS: This nationwide population-based cohort study was based on data from the Taiwan National Health Insurance Research Database for 2000-2011. The incidence and relative risk of dementia were assessed in 207788 patients hospitalized for AKI. The comparison control was selected using the propensity score based on age, sex, index year and comorbidities. RESULTS: During the 12-year follow-up, patients with AKI had a significantly higher incidence for developing dementia than did the controls (8...
2017: PloS One
https://www.readbyqxmd.com/read/28192099/role-of-interleukin-10-in-the-neuroprotective-effect-of-the-angiotensin-type-2-receptor-agonist-compound-21-after-ischemia-reperfusion-injury
#11
Abdelrahman Y Fouda, Bindu Pillai, Krishnan M Dhandapani, Adviye Ergul, Susan C Fagan
INTRODUCTION: We and others have shown that the angiotensin type 2 (AT2) receptor agonist, compound 21 (C21), provides neuroprotection and enhances recovery in rodent stroke models yet the mechanism involved is not known. Moreover, C21 treatment is associated with an anti-inflammatory response. Here we tested the hypothesis that C21 mediates neuroprotection by upregulating the neuroprotective and anti-inflammatory cytokine, interleukin (IL)-10. METHODS: Wistar rats were subjected to 3h-middle cerebral artery suture occlusion and treated at reperfusion with C21 (0...
February 10, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28191863/ulinastatin-downregulates-tlr4-and-nf-kb-expression-and-protects-mouse-brains-against-ischemia-reperfusion-injury
#12
Xiaofang Li, Likai Su, Xiangjian Zhang, Cong Zhang, Lina Wang, Yaoru Li, Ye Zhang, Tingting He, Xingyuan Zhu, Lili Cui
BACKGROUND: Inflammatory damage plays an important role in ischemic stroke and provides potential targets for therapy. Ulinastatin (UTI), a drug used to treat shock and acute pancreatitis in clinic, has attracted attention for its protective effects through immunomodulatory and anti-inflammatory properties. However, the effect of UTI in the acute phase of cerebral ischemia/reperfusion (I/R) is not clear. This study is to investigate the potential neuroprotective effect of UTI and explore its underlying mechanisms...
February 13, 2017: Neurological Research
https://www.readbyqxmd.com/read/28191775/noninvasive-assessment-of-an-engineered-bioactive-graft-in-myocardial-infarction-impact-on-cardiac-function-and-scar-healing
#13
Carolina Gálvez-Montón, Ramon Bragós, Carolina Soler-Botija, Idoia Díaz-Güemes, Cristina Prat-Vidal, Verónica Crisóstomo, Francisco M Sánchez-Margallo, Aida Llucià-Valldeperas, Paco Bogónez-Franco, Isaac Perea-Gil, Santiago Roura, Antoni Bayes-Genis
Cardiac tissue engineering, which combines cells and biomaterials, is promising for limiting the sequelae of myocardial infarction (MI). We assessed myocardial function and scar evolution after implanting an engineered bioactive impedance graft (EBIG) in a swine MI model. The EBIG comprises a scaffold of decellularized human pericardium, green fluorescent protein-labeled porcine adipose tissue-derived progenitor cells (pATPCs), and a customized-design electrical impedance spectroscopy (EIS) monitoring system...
February 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28191513/dietary-cholesterol-and-egg-yolk-should-be-avoided-by-patients-at-risk-of-vascular-disease
#14
REVIEW
J David Spence
Recent recommendations that limits to dietary cholesterol be dropped were probably heavily influenced by propaganda from the egg industry. After conviction for false advertising, the industry has spent hundreds of millions of dollars to convince the public, physicians, and policy makers that dietary cholesterol and egg yolk are harmless. However, there are good reasons for longstanding recommendations that dietary cholesterol be limited to <200 mg/ day in persons at risk of vascular disease. It is seldom understood that this essentially means all people in developed countries who expect to attain an advanced age...
April 1, 2016: Journal of Translational Internal Medicine
https://www.readbyqxmd.com/read/28190603/neuroprotective-effects-of-a-novel-antioxidant-mixture-twendee-x-in-mouse-stroke-model
#15
Momoko Kusaki, Yasuyuki Ohta, Haruhiko Inufusa, Toru Yamashita, Ryuta Morihara, Yumiko Nakano, Xia Liu, Jingwei Shang, Feng Tian, Yusuke Fukui, Kota Sato, Mami Takemoto, Nozomi Hishikawa, Koji Abe
BACKGROUND: Oxidative stress and inflammation are important aggravating factors in acute ischemic stroke. METHODS: In the present study, the neuroprotective effects of a novel antioxidant mixture Twendee X containing multiple antioxidative ingredients, such as coenzyme Q10, ascorbic acid, and cystine, were evaluated. After the pretreatment of a vehicle or Twendee X (20 mg/kg/d) for 14 days, mice were subjected to transient middle cerebral artery occlusion for 60 minutes and further treated with vehicle or Twendee X for 1 or 5 days...
February 9, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28188219/distinct-effects-of-mir-210-reduction-on-neurogenesis-increased-neuronal-survival-of-inflammation-but-reduced-proliferation-associated-with-mitochondrial-enhancement
#16
Ludmila A Voloboueva, Xiaoyun Sun, Lijun Xu, Yi-Bing Ouyang, Rona G Giffard
Neurogenesis is essential to brain development, and plays a central role in the response to brain injury. Stroke and head trauma stimulate proliferation of endogenous neural stem cells (NSC). However, the survival of young neurons is sharply reduced by post-injury inflammation. Cellular mitochondria are critical to successful neurogenesis and are a major target of inflammatory injury. Mitochondrial protection was shown to improve survival of young neurons. This study tested whether reducing cellular microRNA-210 (miR-210) would enhance mitochondrial function and improve survival of young murine neurons under inflammatory conditions...
February 10, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28186348/transplantation-with-hypoxia-preconditioned-mesenchymal-stem-cells-suppresses-brain-injury-caused-by-cardiac-arrest-induced-global-cerebral-ischemia-in-rats
#17
Ji-Wen Wang, Yu-Ru Qiu, Yue Fu, Jun Liu, Zhi-Jie He, Zi-Tong Huang
Cardiac arrest-induced global cerebral ischemia is a main cause of neurological dysfunction in emergency medicine. Transplantation with bone marrow mesenchymal stem cells (MSCs) has been used in stroke models to repair the ischemic brain injury, but it is little studied in models with global cerebral ischemia. In the present study, a hypoxia precondition was used to improve the efficacy of MSC transplantation, given the low survival and migration rates and limited differentiation capacities of MSCs. We found that hypoxia can increase the expansion and migration of MSCs by activating the PI3K/AKT and hypoxia-inducible factor-1α/CXC chemokine receptor-4 pathways...
February 10, 2017: Journal of Neuroscience Research
https://www.readbyqxmd.com/read/28183800/tnfsf15-inhibits-vegf-stimulated-vascular-hyperpermeability-by-inducing-vegfr2-dephosphorylation
#18
Gui-Li Yang, Zilong Zhao, Ting-Ting Qin, Dong Wang, Lijuan Chen, Rong Xiang, Zhen Xi, Rongcai Jiang, Zhi-Song Zhang, Jianning Zhang, Lu-Yuan Li
Vascular hyperpermeability is critical in ischemic diseases, including stroke and myocardial infarction, as well as in inflammation and cancer. It is well known that the VEGF-VEGFR2 signaling pathways are pivotal in promoting vascular permeability; however, counterbalancing mechanisms that restrict vascular permeability to maintain the integrity of blood vessels, are not yet fully understood. We report that TNF superfamily member 15 (TNFSF15), a cytokine largely produced by vascular endothelial cells and a specific inhibitor of the proliferation of these same cells, can inhibit VEGF-induced vascular permeability in vitro and in vivo, and that death receptor 3 (DR3), a cell surface receptor of TNFSF15, mediates TNFSF15-induced dephosphorylation of VEGFR2...
February 9, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28182332/challenging-the-great-vascular-wall-can-we-envision-a-simple-yet-comprehensive-therapy-for-stroke
#19
Marta Machado-Pereira, Tiago Santos, Lino Ferreira, Liliana Bernardino, Raquel Ferreira
Stroke is a leading cause of death in adult life, closely behind ischemic heart disease, and causes a significant and abiding socioeconomic burden. However, current therapies are not able to ensure full neurologic and/or sequelae-free recovery to all stroke survivors. We believe treatment efficacy and patient rehabilitation could be enhanced significantly by targeting blood-brain barrier (BBB) deregulation and inflammation-induced barrier loss occurring after stroke. In this pathological context, bone marrow-derived endothelial progenitor cells (EPC) enter the bloodstream towards the lesion site but their insufficient numbers and impaired angiogenic ability compromise neurovascular regeneration...
February 9, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28181171/neutrophil-to-lymphocyte-ratio-predicts-3-month-outcome-of-acute-ischemic-stroke
#20
Sen Qun, Yan Tang, Jing Sun, Zhaoxia Liu, Juncang Wu, Ji Zhang, Jidong Guo, Zhiqiang Xu, Dan Zhang, Zhengxu Chen, Fuyong Hu, Xingshun Xu, Wei Ge
Increasing evidences have demonstrated that inflammation is involved in the mechanisms of acute ischemic stroke (AIS). As an important and easy-to-measure inflammatory marker, neutrophil-to-lymphocyte ratio (NLR) shows a high association with mortality in patients with stroke in recent studies. In this study, we evaluated the prognostic role of NLR in patients with AIS. One hundred forty-three patients with AIS were enrolled. Clinical data were collected and the NLR was calculated from the admission blood work...
February 8, 2017: Neurotoxicity Research
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