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Stroke inflammation

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https://www.readbyqxmd.com/read/28330662/pericardial-but-not-hepatic-fat-by-ct-is-associated-with-cv-outcomes-and%C3%A2-structure-the-multi-ethnic-study-of-atherosclerosis
#1
Ravi V Shah, Amanda Anderson, Jingzhong Ding, Matthew Budoff, Oliver Rider, Steffen E Petersen, Majken Karoline Jensen, Manja Koch, Matthew Allison, Nadine Kawel-Boehm, Jessica Wisocky, Michael Jerosch-Herold, Kenneth Mukamal, Joao A C Lima, Venkatesh L Murthy
OBJECTIVES: The study sought to determine the associations between local (pericardial) fat and incident cardiovascular disease (CVD) events and cardiac remodeling independent of markers of overall adiposity. BACKGROUND: The impact of pericardial fat-a local fat depot encasing the heart-on myocardial function and long-term CV prognosis independent of systemic consequences of adiposity or hepatic fat is an area of active debate. METHODS: We studied 4,234 participants enrolled in the MESA (Multi-Ethnic Study of Atherosclerosis) study with concomitant cardiac magnetic resonance imaging and computed tomography (CT) measurements for pericardial fat volume and hepatic attenuation (a measure of liver fat)...
March 10, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28329261/effects-of-noise-on-vascular-function-oxidative-stress-and-inflammation-mechanistic-insight-from-studies-in-mice
#2
Thomas Münzel, Andreas Daiber, Sebastian Steven, Lan P Tran, Elisabeth Ullmann, Sabine Kossmann, Frank P Schmidt, Matthias Oelze, Ning Xia, Huige Li, Antonio Pinto, Philipp Wild, Kai Pies, Erwin R Schmidt, Steffen Rapp, Swenja Kröller-Schön
Aims: Epidemiological studies indicate that traffic noise increases the incidence of coronary artery disease, hypertension and stroke. The underlying mechanisms remain largely unknown. Field studies with nighttime noise exposure demonstrate that aircraft noise leads to vascular dysfunction, which is markedly improved by vitamin C, suggesting a key role of oxidative stress in causing this phenomenon. Methods and results: We developed a novel animal model to study the vascular consequences of aircraft noise exposure...
February 17, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28325781/hete-signals-through-g-protein-coupled-receptor-gpr75-gq-to-affect-vascular-function-and-trigger-hypertension
#3
Victor Garcia, Ankit Gilani, Brian Shkolnik, Varunkumar Pandey, Frank F Zhang, Rambabu Dakarapu, Shyam K Gandham, N R Reddy, Joan P Graves, Artiom Gruzdev, Darryl C Zeldin, Jorge H Capdevila, John R Falck, Michal L Schwartzman
Rationale: 20-Hydroxyeicosatetraenoic acid (20-HETE), one of the principle cytochrome P450 (CYP) eicosanoids, is a potent vasoactive lipid whose vascular effects include stimulation of smooth muscle contractility, migration and proliferation, as well as endothelial cell dysfunction and inflammation. Increased levels of 20-HETE in experimental animals and in humans are associated with hypertension, stroke, myocardial infarction and vascular diseases. Objective: To date, a receptor/binding site for 20-HETE has been implicated based on the use of specific agonists and antagonists...
March 21, 2017: Circulation Research
https://www.readbyqxmd.com/read/28325523/total-management-of-chronic-obstructive-pulmonary-disease-copd-as-an-independent-risk-factor-for-cardiovascular-disease
#4
REVIEW
Katsuya Onishi
Patients with cardiovascular disease (CVD) often have multiple comorbid conditions that may interact with each other, confound the choice of treatments, and reduce mortality. Chronic obstructive pulmonary disease (COPD) is one of the most important comorbidities of CVD, which causes serious consequences in patients with ischemic heart disease, stroke, arrhythmia, and heart failure. COPD shares common risk factors such as tobacco smoking and aging with CVD, is associated with less physical activity, and produces systemic inflammation and oxidative stress...
March 18, 2017: Journal of Cardiology
https://www.readbyqxmd.com/read/28316143/endothelial-microparticles-act-as-novel-diagnostic-and-therapeutic-biomarkers-of-circulatory-hypoxia-related-diseases-a-literature-review
#5
REVIEW
Fan Deng, Shuang Wang, Liangqing Zhang
Circulatory hypoxia-related diseases (CHRDs), including acute coronary syndromes, stroke and organ transplantation, attract increased attention due to high morbidity and mortality. Mounting evidence shows that hypoxia-induced oxidative stress, coagulation, inflammation and angiogenesis play extremely important roles in the physiological and pathological processes of CHRD-related vascular endothelial injury. Interestingly, hypoxia, even hypoxia-induced oxidative stress, coagulation and inflammation can all induce release of endothelial microparticles (EMPs)...
March 18, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28315199/hiv-infection-and-risk-of-cardiovascular-diseases-beyond-coronary-artery-disease
#6
REVIEW
Revery P Barnes, John Charles A Lacson, Hossein Bahrami
PURPOSE OF REVIEW: Cardiovascular disease (CVD) increasingly afflicts people living with HIV (PLWH) in the contemporary era of antiretroviral therapy (ART). Coronary artery disease (CAD) is the most widely studied cardiovascular problem in PLWH; however, less is known about other clinically relevant subtypes of CVD such as heart failure (HF), cerebrovascular disease, sudden cardiac death, pericardial diseases, and pulmonary hypertension. This paper reviews evidence of other subtypes of CVD as emerging issues in the post-ART era...
May 2017: Current Atherosclerosis Reports
https://www.readbyqxmd.com/read/28303662/mean-platelets-volume-and-neutrophil-to-lymphocyte-ratio-as-predictors-of-stroke
#7
Raymond Farah, Nava Samra
BACKGROUND: Mean platelets volume (MPV) is a marker, which indicates platelet function, and is a potential link between inflammation and thrombosis. Previous studies have found a relation between high MPV levels and high risk of stroke. Another factor that has been associated with the risk of stroke is neutrophil to lymphocyte ratio (NLR). Several studies have reported an association between increased NLR and increased risk of cerebrovascular disease. It was found that NLR levels have a relation to the prognosis as well...
March 17, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28303450/dr%C3%AE-1-mog-35-55-treatment-reduces-lesion-volumes-and-improves-neurological-deficits-after-traumatic-brain-injury
#8
Liu Yang, Zhijia Liu, Honglei Ren, Lei Zhang, Siman Gao, Li Ren, Zhi Chai, Roberto Meza-Romero, Gil Benedek, Arthur A Vandenbark, Halina Offner, Minshu Li
Traumatic brain injury (TBI) results in severe neurological impairments without effective treatments. Inflammation appears to be an important contributor to key pathogenic events such as secondary brain injury following TBI and therefore serves as a promising target for novel therapies. We have recently demonstrated the ability of a molecular construct comprised of the human leukocyte antigen (HLA)-DRα1 domain linked covalently to mouse (m)MOG-35-55 peptide (DRα1-MOG-35-55 construct) to reduce CNS inflammation and tissue injury in animal models of multiple sclerosis and ischemic stroke...
March 16, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28302952/reduction-in-high-sensitivity-c-reactive-protein-levels-in-patients-with-ischemic-stroke-by-statin-treatment-hs-crp-sub-study-in-j-stars
#9
Kazuo Kitagawa, Naohisa Hosomi, Yoji Nagai, Tatsuo Kagimura, Toshiho Ohtsuki, Hideki Origasa, Kazuo Minematsu, Shinichiro Uchiyama, Masakazu Nakamura, Masayasu Matsumoto
AIMS: The pleiotropic effects of statins on recurrent stroke remain unclear. We investigated the effects of pravastatin on high-sensitivity C-reactive proteins (Hs-CRP) in ischemic stroke, and explored the impact of Hs-CRP on recurrent stroke and vascular events. METHODS: This randomized open-label trial was ancillary to the J-STARS trial. One thousand and ninety-five patients with non-cardiogenic ischemic stroke were assigned to the pravastatin (n=545) or control groups (n=550)...
March 7, 2017: Journal of Atherosclerosis and Thrombosis
https://www.readbyqxmd.com/read/28302352/neuroinflammation-responses-after-subarachnoid-hemorrhage-a-review
#10
REVIEW
Vera Zhiyuan Zheng, George Kwok Chu Wong
Subarachnoid hemorrhage (SAH) is an important cause of stroke mortality and morbidity, especially in the young stroke population. Recent evidences indicate that neuroinflammation plays a critical role in both early brain injury and the delayed brain deterioration after SAH, including cellular and molecular components. Cerebral vasospasm (CV) can lead to death after SAH and independently correlated with poor outcome. Neuroinflammation is evidenced to contribute to the etiology of vasospasm. Besides, systemic inflammatory response syndrome (SIRS) commonly occurs in the SAH patients, with the presence of non-infectious fever and systematic complications...
March 13, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28298836/transforming-growth-factor-%C3%AE-1-c509t-g800a-and-t869c-gene-polymorphisms-and-risk-of-ischemic-stroke-in-north-indian-population-a-hospital-based-case-control-study
#11
Pradeep Kumar, Shubham Misra, Amit Kumar, Mohammad Faruq, Sunil Shakya, Gyan Vardhan, Subiah Vivekanandhan, Achal Kumar Srivastava, Kameshwar Prasad
BACKGROUND: Transforming growth factor-beta 1 (TGF-β1) is a multifunctional pleiotropic cytokine involved in inflammation and pathogenesis of cerebrovascular diseases. There is limited information on the association between variations within the TGF-β1 gene polymorphisms and risk of ischemic stroke (IS). The aim of this study was to investigate the association of the TGF-β1 gene (C509T, G800A, and T869C) polymorphisms, and their haplotypes with the risk of IS in North Indian population...
January 2017: Annals of Indian Academy of Neurology
https://www.readbyqxmd.com/read/28290152/vascular-endothelial-growth-factor-isoform-b-stimulates-neurovascular-repair-after-ischemic-stroke-by-promoting-the-function-of-pericytes-via-vascular-endothelial-growth-factor-receptor-1
#12
Noëmie Jean LeBlanc, Revathy Guruswamy, Ayman ElAli
Ischemic stroke triggers endogenous angiogenic mechanisms, which correlates with longer survival in patients. As such, promoting angiogenesis appears to be a promising approach. Experimental studies investigated mostly the potent angiogenic factor vascular endothelial growth factor isoform-A (VEGF-A). However, VEGF-A increases the risk of destabilizing the brain microvasculature, thus hindering the translation of its usage in clinics. An attractive alternative VEGF isoform-B (VEGF-B) was recently reported to act as a survival factor rather than a potent angiogenic factor...
March 14, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28289007/ischemia-and-no-obstructive-coronary-artery-disease-inoca-developing-evidence-based-therapies-and-research-agenda-for-the-next-decade
#13
REVIEW
C Noel Bairey Merz, Carl J Pepine, Mary Norine Walsh, Jerome L Fleg
The Cardiovascular Disease in Women Committee of the American College of Cardiology, in conjunction with interested parties (from the National Heart, Lung, and Blood Institute, American Heart Association, and European Society of Cardiology), convened a working group to develop a consensus on the syndrome of myocardial ischemia with no obstructive coronary arteries. In general, these patients have elevated risk for a cardiovascular event (including acute coronary syndrome, heart failure hospitalization, stroke, and repeat cardiovascular procedures) compared with reference subjects and appear to be at higher risk for development of heart failure with preserved ejection fraction...
March 14, 2017: Circulation
https://www.readbyqxmd.com/read/28288585/hypertonic-saline-attenuates-expression-of-notch-signaling-and-proinflammatory-mediators-in-activated-microglia-in-experimentally-induced-cerebral-ischemia-and-hypoxic-bv-2-microglia
#14
Wen-Xin Zeng, Yong-Li Han, Gao-Feng Zhu, Lin-Qiang Huang, Yi-Yu Deng, Qiao-Sheng Wang, Wen-Qiang Jiang, Miao-Yun Wen, Qian-Peng Han, Di Xie, Hong-Ke Zeng
BACKGROUND: Ischemic stroke is a major disease that threatens human health in ageing population. Increasing evidence has shown that neuroinflammatory mediators play crucial roles in the pathophysiology of cerebral ischemia injury. Notch signaling is recognized as the cell fate signaling but recent evidence indicates that it may be involved in the inflammatory response in activated microglia in cerebral ischemia. Previous report in our group demonstrated hypertonic saline (HS) could reduce the release of interleukin-1 beta and tumor necrosis factor-alpha in activated microglia, but the underlying molecular and cellular mechanisms have remained uncertain...
March 14, 2017: BMC Neuroscience
https://www.readbyqxmd.com/read/28283957/migraine-and-stroke-what-s-the-link-what-to-do
#15
REVIEW
Anna Gryglas, Robert Smigiel
Migraine and stroke are common, disabling neurologic disorders, with a high socioeconomic burden. A link between them has been proposed years ago, and various theories have been proposed to explain this bidirectional relation. However, the precise causes remain unclear. We briefly summarize existing hypotheses of this correlation seeking for recommendations for stroke prevention in migraineurs, if any exist. Among the strongest suggested theories of migraine-stroke association are cortical spreading depression, endovascular dysfunction, vasoconstriction, neurogenic inflammation, hypercoagulability, increased prevalence of vascular risk factors, shared genetic defects, cervical artery dissection, and patent foramen ovale...
March 2017: Current Neurology and Neuroscience Reports
https://www.readbyqxmd.com/read/28282924/autophagy-and-microglia-novel-partners-in-neurodegeneration-and-aging
#16
REVIEW
Ainhoa Plaza-Zabala, Virginia Sierra-Torre, Amanda Sierra
Autophagy is emerging as a core regulator of Central Nervous System (CNS) aging and neurodegeneration. In the brain, it has mostly been studied in neurons, where the delivery of toxic molecules and organelles to the lysosome by autophagy is crucial for neuronal health and survival. However, we propose that the (dys)regulation of autophagy in microglia also affects innate immune functions such as phagocytosis and inflammation, which in turn contribute to the pathophysiology of aging and neurodegenerative diseases...
March 9, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28281385/electroacupuncture-brain-protection-during-ischemic-stroke-a-role-for-the-parasympathetic-nervous-system
#17
Laiting Chi, Kairong Du, Dongdong Liu, Yulong Bo, Wenzhi Li
The demand for using parasympathetic activation for stroke therapy is unmet. In the current study, we investigated whether the neuroprotection provided by electroacupuncture (EA) in an experimental stroke model was associated with activation of the parasympathetic nervous system (PNS). The results showed that parasympathetic dysfunction (PD), performed as unilateral vagotomy combined with peripheral atropine, attenuated both the functional benefits of EA and its effects in improving cerebral perfusion, reducing infarct volume, and hindering apoptosis, neuronal and peripheral inflammation, and oxidative stress...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28273719/depletion-of-microglia-exacerbates-postischemic-inflammation-and-brain-injury
#18
Wei-Na Jin, Samuel Xiang-Yu Shi, Zhiguo Li, Minshu Li, Kristofer Wood, Rayna J Gonzales, Qiang Liu
Brain ischemia elicits microglial activation and microglia survival depend on signaling through colony-stimulating factor 1 receptor (CSF1R). Although depletion of microglia has been linked to worse stroke outcomes, it remains unclear to what extent and by what mechanisms activated microglia influence ischemia-induced inflammation and injury in the brain. Using a mouse model of transient focal cerebral ischemia and reperfusion, we demonstrated that depletion of microglia via administration of the dual CSF1R/c-Kit inhibitor PLX3397 exacerbates neurodeficits and brain infarction...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28273718/mechanisms-of-parkinson-s-disease-related-proteins-in-mediating-secondary-brain-damage-after-cerebral-ischemia
#19
TaeHee Kim, Raghu Vemuganti
Both Parkinson's disease (PD) and stroke are debilitating conditions that result in neuronal death and loss of neurological functions. These two conditions predominantly affect aging populations with the deterioration of the quality of life for the patients themselves and a tremendous burden to families. While the neurodegeneration and symptomology of PD develop chronically over the years, post-stroke neuronal death and dysfunction develop rapidly in days. Despite the discrepancy in the pathophysiological time frame and severity, both conditions share common molecular mechanisms that include oxidative stress, mitochondrial dysfunction, inflammation, endoplasmic reticulum stress, and activation of various cell death pathways (apoptosis/necrosis/autophagy) that synergistically modulate the neuronal death...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28272771/sensitivity-of-diffusion-mri-to-perilesional-reactive-astrogliosis-in-focal-ischemia
#20
Rachel A Weber, Clifford H Chan, Xingju Nie, Emily Maggioncalda, Grace Valiulis, Abigail Lauer, Edward S Hui, Jens H Jensen, DeAnna L Adkins
Reactive astrogliosis is a response to injury in the central nervous system that plays an essential role in inflammation and tissue repair. It is characterized by hypertrophy of astrocytes, alterations in astrocyte gene expression and astrocyte proliferation. Reactive astrogliosis occurs in multiple neuropathologies, including stroke, traumatic brain injury and Alzheimer's disease, and it has been proposed as a possible source of the changes in diffusion magnetic resonance imaging (dMRI) metrics observed with these diseases...
March 8, 2017: NMR in Biomedicine
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