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Stroke inflammation

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https://www.readbyqxmd.com/read/28541444/blood-brain-barrier-pericyte-importance-in-malignant-gliomas-what-we-can-learn-from-stroke-and-alzheimer-s-disease
#1
Sadhana Jackson, Ayman ElAli, Daniela Virgintino, Mark R Gilbert
The pericyte, a constitutive component of the central nervous system, is a poorly understood cell type that envelops the endothelial cell with the intended purpose of regulating vascular flow and endothelial cell permeability. Previous studies of pericyte function have been limited to a small number of disease processes such as ischemic stroke and Alzheimer's disease. Recently, publications have postulated a link between glioma stem cell differentiation and pericyte function. These studies suggest that there may be an important interaction of pericytes with tumor cells and other components of the tumor microenvironment in malignant primary glial neoplasms, most notably glioblastoma...
May 24, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/28537343/practice-patterns-for-spasticity-management-with-phenol-neurolysis
#2
Jay Karri, Manuel F Mas, Gerard E Francisco, Sheng Li
OBJECTIVE: To present practice patterns for phenol neurolysis procedures conducted for spasticity management. DESIGN: A retrospective review of 185 persons with spasticity who underwent phenol neurolysis procedures (n = 293) at an academic rehabilitation hospital and clinic. Patient demographics, concomitant spasticity treatments, and procedure relevant information were collected. RESULTS: The cohort included 71.9% males and 61.6% inpatient procedures...
May 24, 2017: Journal of Rehabilitation Medicine
https://www.readbyqxmd.com/read/28536169/inflammatory-stroke-extracellular-vesicles-induce-macrophage-activation
#3
Yvonne Couch, Naveed Akbar, Simon Davis, Roman Fischer, Alex M Dickens, Ain A Neuhaus, Annette I Burgess, Peter M Rothwell, Alastair M Buchan
BACKGROUND AND PURPOSE: Extracellular vesicles (EVs) are protein-lipid complexes released from cells, as well as actively exocytosed, as part of normal physiology, but also during pathological processes such as those occurring during a stroke. Our aim was to determine the inflammatory potential of stroke EVs. METHODS: EVs were quantified and analyzed in the sera of patients after an acute stroke (<24 hours; OXVASC [Oxford Vascular Study]). Isolated EV fractions were subjected to untargeted proteomic analysis by liquid chromatography mass-spectrometry/mass-spectrometry and then applied to macrophages in culture to investigate inflammatory gene expression...
May 23, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28535304/the-interplay-of-micrornas-in-the-inflammatory-mechanisms-following-ischemic-stroke
#4
Seyed Esmaeil Khoshnam, William Winlow, Maryam Farzaneh
Immunity and inflammation are important parameters of the pathophysiology of stroke, a destructive illness that is the second most common cause of death worldwide. Following ischemic stroke, neuroinflammation plays a critical role in neurodegeneration and brain injury. MicroRNAs (miRNAs) are a class of endogenously expressed, noncoding RNA molecules that function to inhibit mRNA translation. Recent studies demonstrate that miRNAs are key regulators of inflammatory processes contributing to ischemic stroke injuries...
May 23, 2017: Journal of Neuropathology and Experimental Neurology
https://www.readbyqxmd.com/read/28528288/cancer-atrial-fibrillation-and-stroke
#5
REVIEW
Tess Fitzpatrick, Marc Carrier, Grégoire Le Gal
Cancer patients appear to be at increased risk for atrial fibrillation. Although surgery and chemotherapy exacerbate this risk, this association is observed even in the absence of any cancer-specific treatment. The underlying mechanism of this is likely multifactorial, but systemic inflammation and autonomic dysregulation are hypothesized to play critical roles. Cancer and atrial fibrillation are both independent risk factors for ischemic stroke; however, it is not clear whether this translates to an increased risk of stroke in patients with both comorbidities...
May 9, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28527875/magnolol-attenuates-the-inflammation-and-apoptosis-through-the-activation-of-sirt1-in-experimental-stroke-rats
#6
Dong-Quan Kou, Yan-Ling Jiang, Jia-Hua Qin, Yin-Hui Huang
BACKGROUND: Silent information regulator 1 (SIRT1), a histone deacetylase, plays a protective role in ischemic brain injury. Previous studies have shown that magnolol has a beneficial effect on ischemic stroke; however, the role of SIRT1 in the protective effect of magnolol against cerebral ischemia has not been investigated. METHODS: We used a middle cerebral artery occlusion model of stroke in rats. Before stroke induction, the rats received intraperitoneal injections of magnolol with or without the SIRT1 inhibitor, EX527...
January 10, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/28527041/mechanisms-of-acupuncture-therapy-for-cerebral-ischemia-an-evidence-based-review-of-clinical-and-animal-studies-on-cerebral-ischemia
#7
REVIEW
Wen Zhu, Yang Ye, Yi Liu, Xue-Rui Wang, Guang-Xia Shi, Shuai Zhang, Cun-Zhi Liu
Ischemic stroke is a major cause of mortality and disability worldwide. As a part of Traditional Chinese Medicine (TCM), acupuncture has been shown to be effective in promoting recovery after stroke. In this article, we review the clinical and experimental studies that demonstrated the mechanisms of acupuncture treatment for cerebral ischemia. Clinical studies indicated that acupuncture activated relevant brain regions, modulated cerebral blood flow and related molecules in stroke patients. Evidence from laboratory indicated that acupuncture regulates cerebral blood flow and metabolism after the interrupt of blood supply...
May 19, 2017: Journal of Neuroimmune Pharmacology: the Official Journal of the Society on NeuroImmune Pharmacology
https://www.readbyqxmd.com/read/28526765/factors-associated-with-ischemic-stroke-survival-and-recovery-in-older-adults
#8
Divya Thekkethala Winovich, William T Longstreth, Alice M Arnold, Ravi Varadhan, Adina Zeki Al Hazzouri, Mary Cushman, Anne B Newman, Michelle C Odden
BACKGROUND AND PURPOSE: Little is known about factors that predispose older adults to poor recovery after a stroke. In this study, we sought to evaluate prestroke measures of frailty and related factors as markers of vulnerability to poor outcomes after ischemic stroke. METHODS: In participants aged 65 to 99 years with incident ischemic strokes from the Cardiovascular Health Study, we evaluated the association of several risk factors (frailty, frailty components, C-reactive protein, interleukin-6, and cystatin C) assessed before stroke with stroke outcomes of survival, cognitive decline (≥5 points on Modified Mini-Mental State Examination), and activities of daily living decline (increase in limitations)...
May 19, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28524828/relationships-of-inflammatory-factors-and-risk-factors-with-different-target-organ-damage-in-essential-hypertension-patients
#9
Chun-Lin Lai, Jin-Ping Xing, Xiao-Hong Liu, Jie Qi, Jian-Qiang Zhao, You-Rui Ji, Wu-Xiao Yang, Pu-Juan Yan, Chun-Yan Luo, Lu-Fang Ruan
BACKGROUND: Atherosclerosis (AS) is an inflammatory disease. Inflammation was considered to play a role in the whole process of AS. This study aimed to analyze the relationships of inflammatory factors and risk factors with different target organ damages (TOD) in essential hypertension (EH) patients and to explore its clinical significance. METHODS: A total of 294 EH patients were selected and divided into four groups according to their conditions of TOD. Forty-eight healthy subjects were selected as control...
June 5, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28523230/targeting-resolution-of-neuroinflammation-after-ischemic-stroke-with-a-lipoxin-a4-analog-protective-mechanisms-and-long-term-effects-on-neurological-recovery
#10
Kimberly E Hawkins, Kelly M DeMars, Jon C Alexander, Lauren G de Leon, Sean C Pacheco, Christina Graves, Changjun Yang, Austin O McCrea, Jan C Frankowski, Timothy J Garrett, Marcelo Febo, Eduardo Candelario-Jalil
BACKGROUND: Resolution of inflammation is an emerging new strategy to reduce damage following ischemic stroke. Lipoxin A4 (LXA 4) is an anti-inflammatory, pro-resolution lipid mediator that reduces neuroinflammation in stroke. Since LXA 4 is rapidly inactivated, potent analogs have been synthesized, including BML-111. We hypothesized that post-ischemic, intravenous treatment with BML-111 for 1 week would provide neuroprotection and reduce neurobehavioral deficits at 4 weeks after ischemic stroke in rats...
May 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28522451/ada2-deficiency-dada2-as-an-unrecognised-cause-of-early-onset-polyarteritis-nodosa-and-stroke-a-multicentre-national-study
#11
Roberta Caorsi, Federica Penco, Alice Grossi, Antonella Insalaco, Alessia Omenetti, Maria Alessio, Giovanni Conti, Federico Marchetti, Paolo Picco, Alberto Tommasini, Silvana Martino, Clara Malattia, Romina Gallizi, Rosa Anna Podda, Annalisa Salis, Fernanda Falcini, Francesca Schena, Francesca Garbarino, Alessia Morreale, Manuela Pardeo, Claudia Ventrici, Chiara Passarelli, Qing Zhou, Mariasavina Severino, Carlo Gandolfo, Gianluca Damonte, Alberto Martini, Angelo Ravelli, Ivona Aksentijevich, Isabella Ceccherini, Marco Gattorno
OBJECTIVES: To analyse the prevalence of CECR1 mutations in patients diagnosed with early onset livedo reticularis and/or haemorrhagic/ischaemic strokes in the context of inflammation or polyarteritis nodosa (PAN). Forty-eight patients from 43 families were included in the study. METHODS: Direct sequencing of CECR1 was performed by Sanger analysis. Adenosine deaminase 2 (ADA2) enzymatic activity was analysed in monocyte isolated from patients and healthy controls incubated with adenosine and with or without an ADA1 inhibitor...
May 18, 2017: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/28516343/therapeutic-dormancy-to-delay-postsurgical-glioma-recurrence-the-past-present-and-promise-of-focal-hypothermia
#12
REVIEW
Didier Wion
Surgery precedes both radiotherapy and chemotherapy as the first-line therapy for glioma. However, despite multimodal treatment, most glioma patients die from local recurrence in the resection margin. Glioma surgery is inherently lesional, and the response of brain tissue to surgery includes hemostasis, angiogenesis, reactive gliosis and inflammation. Unfortunately, these processes are also associated with tumorigenic side-effects. An increasing amount of evidence indicates that the response to a surgery-related brain injury is hijacked by residual glioma cells and participates in the local regeneration of tumor tissues at the resection margin...
May 17, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28511155/-the-role-of-inflammatory-biomarkers-in-cardiovascular-risk-stratification
#13
Світлана Г Пузік
INTRODUCTION: The increase in cardiovascular diseases requires the search for ways to predict complications based on research additional to traditional risk factors, conduct a study of the formation mechanisms of these complications and to design new treatment strategies. AIM: To get an idea about the relationship between inflammation in the blood vessels, atherosclerosis and cardiovascular consequences based on the study of the role of biomarkers of inflammation...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28506697/inflammation-and-hemostasis-in-older-octogenarians-implication-in-5-year-survival
#14
Judit Cubedo, Teresa Padró, Francesc Formiga, Assumpta Ferrer, Glòria Padrós, Esther Peña, Lina Badimon
Social changes and medical advances have increased longevity, but the conditions governing healthy vs unhealthy cardiovascular (CV) aging are not fully known. Factors beyond classical CV risk factors may have an important unrecognized value. We sought to identify proteins differentially expressed in healthy octogenarians (HOs) without a history of cardiovascular disease (CVD) and preserved functional and cognitive state compared with octogenarians with a history of CVD and cognitive decline (UHOs) using a systems biology approach, and investigated how these proteins relate to CV mortality at 5-year follow-up...
April 26, 2017: Translational Research: the Journal of Laboratory and Clinical Medicine
https://www.readbyqxmd.com/read/28504910/fermented-moringa-oleifera-decreases-hepatic-adiposity-and-ameliorates-glucose-intolerance-in-high-fat-diet-induced-obese-mice
#15
Hyunchae Joung, Bobae Kim, Hyunjoon Park, Kyuyeon Lee, Hee-Hoon Kim, Ho-Cheol Sim, Hyun-Jin Do, Chang-Kee Hyun, Myoung-Sool Do
Metabolic diseases, such as glucose intolerance and nonalcoholic fatty-liver disease (NAFLD), are primary risk factors for life-threatening conditions such as diabetes, heart attack, stroke, and hepatic cancer. Extracts from the tropical tree Moringa oleifera show antidiabetic, antioxidant, anti-inflammatory, and anticancer effects. Fermentation can further improve the safety and nutritional value of certain foods. We investigated the efficacy of fermented M. oleifera extract (FM) against high-fat diet (HFD)-induced glucose intolerance and hepatic lipid accumulation and investigated the underlying mechanisms by analyzing expression of proteins and genes involved in glucose and lipid regulation...
May 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/28498471/sodium-tanshinone-iia-sulfonate-improves-inflammation-aortic-endothelial-cell-apoptosis-disseminated-intravascular-coagulation-and-multiple-organ-damage-in-a-rat-heat-stroke-model
#16
Fang Chen, Huimin Li, Guoguo Zhu, Xiaojuan Chen, Zhongzhi Tang
The aim of the present study was to investigate the effects of sodium tanshinone IIA sulfonate (STS) on inflammatory responses, aortic endothelial cell apoptosis, disseminated intravascular coagulation (DIC) and multiple organ damage in an animal model of classic heat stroke (CHS). The rats in the heat stroke (HS) and STS‑treated heat stroke (STS‑HS) groups were placed into a pre‑warmed animal temperature controller (ATC) at 35˚C. The moment at which the rectal temperature reached 43.5˚C was considered as the time of onset of HS...
May 11, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28493328/screening-of-181-patients-with-antibody-deficiency-for-deficiency-of-adenosine-deaminase-2-sheds-new-light-on-the-disease-in-adulthood
#17
Johanna Schepp, Michele Proietti, Natalie Frede, Mary Buchta, Katrin Hübscher, Jessica Rojas Restrepo, Sigune Goldacker, Klaus Warnatz, Jana Pachlopnik Schmid, Andrea Duppenthaler, Vassilios Lougaris, Ignacio Uriarte, Susan Kelly, Michael Hershfield, Bodo Grimbacher
OBJECTIVE: We aimed to test the relevance of Deficiency of Adenosine Deaminase 2 in patients with antibody deficiency and describe the clinical picture of the disease in adulthood. METHODS: We screened for DADA2 in a cohort of 181 patients with antibody deficiency with and without vascular lesions by the means of Next-Generation-Sequencing and targeted Sanger Sequencing. All mutations were confirmed by determining the ADA2 enzymatic activity levels in dried plasma spots...
May 10, 2017: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/28488363/the-role-of-regulatory-t-cells-in-nervous-system-pathologies
#18
REVIEW
Samuel S Duffy, Brooke A Keating, Chamini J Perera, Gila Moalem-Taylor
Regulatory T (Treg) cells are a special subpopulation of immunosuppressive T cells that are essential for sustaining immune homeostasis. They maintain self-tolerance, inhibit autoimmunity, and act as critical negative regulators of inflammation in various pathological states including autoimmunity, injury, and degeneration of the nervous system. Treg cells are known to convey both beneficial and detrimental influences in certain disease contexts, and accumulating research suggests that their action may be altered in a range of peripheral and central nervous system pathologies...
May 10, 2017: Journal of Neuroscience Research
https://www.readbyqxmd.com/read/28487946/ghrelin-suppresses-inflammation-in-huvecs-by-inhibiting-ubiquitin-mediated-uncoupling-protein%C3%A2-2-degradation
#19
Ruolan Zhang
Atherosclerosis is considered the major cause of heart attack, stroke and gangrene of the extremities, which is responsible for 50% of all mortality in Western countries. The pathogenesis and causes of atherosclerosis remain elusive. Recent studies highlight inflammation as a contributing factor for atherosclerosis in all stages of the disease process. In this study, we demonstrate that the treatment of human umbilical vein endothelial cells (HUVECs) with ghrelin inhibits the oxidized low-density lipoprotein (oxLDL)-induced inflammatory response, In addition, treatment with ghrelin led to the accumulation of uncoupling protein 2 (UCP2) in the cells, thus decreasing reactive oxygen species (ROS) generation...
June 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28482222/noninvasive-detection-of-increased-carotid-artery-temperature-in-patients-with-coronary-artery-disease-predicts-major-cardiovascular-events-at-one-year-results-from-a-prospective-multicenter-study
#20
Konstantinos Toutouzas, Georgios Benetos, Iosif Koutagiar, Nikolaos Barampoutis, Fotini Mitropoulou, Periklis Davlouros, Petros P Sfikakis, Dimitrios Alexopoulos, Christodoulos Stefanadis, Elias Siores, Dimitris Tousoulis
BACKGROUND AND AIMS: Limited prospective data have been reported regarding the impact of carotid inflammation on cardiovascular events in patients with coronary artery disease (CAD). Microwave radiometry (MWR) is a noninvasive, simple method that has been used for evaluation of carotid artery temperature which, when increased, predicts 'inflamed' plaques with vulnerable characteristics. We prospectively tested the hypothesis that increased carotid artery temperature predicts future cerebro- and cardiovascular events in patients with CAD...
April 23, 2017: Atherosclerosis
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