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https://www.readbyqxmd.com/read/29470256/systematic-screening-in-hereditary-hemorrhagic-telangiectasia-a-review
#1
Steven Kroon, Repke J Snijder, Marie E Faughnan, Hans-Jurgen Mager
PURPOSE OF REVIEW: Hereditary hemorrhagic telangiectasia (HHT) is an autosomal dominant inherited disease characterized by telangiectasia and arteriovenous malformations (AVMs). To date, five genetic types of HHT and one combined juvenile polyposis syndrome and HHT are known. Clinical and genetic screening of patients suspected with HHT is recommended to confirm the diagnosis and to prevent complications associated with HHT. The aim of this article is to give an overview of the evidence and to formulate a recommendation for clinicians concerning screening for HHT...
February 20, 2018: Current Opinion in Pulmonary Medicine
https://www.readbyqxmd.com/read/29469668/review-of-de-novo-cerebral-arteriovenous-malformation-haemorrhage-risk-treatment-approaches-and-outcomes
#2
Xianli Lv, Guihuai Wang
Objective A small number of patients has been reported to develop a completely new or de novo arteriovenous malformation (AVM) after brain surgery, haemorrhage, head trauma or ischaemic stroke. The natural history of these lesions is unknown. In this review, both ruptured and unruptured de novo AVMs and their treatments were reviewed. Methods Published literature in the PubMed database citing 'de novo cerebral arteriovenous malformation' was reviewed. Additional studies were identified through reference searches in each reviewed article...
January 1, 2018: Neuroradiology Journal
https://www.readbyqxmd.com/read/29468984/vad-an-integrated-framework-for-cognitive-rehabilitation
#3
Dafin F Muresanu, Dana Slavoaca, Antox Alvarez, Volker Homberg, Ovidiu Bajenaru, Alla Guekht, Wolf-Dieter Heiss, Livia Popa, Johannes Vester, Ioana Muresanu, Codruta Birle, Maria Balea
Vascular dementia is the second most common cause of dementia, with clinical features that depend on neural substrates affected by the vascular lesions. Like most neurological disorders, it involves alterations that range from the molecular level to neuronal networks. Such alterations begin as compensatory mechanisms that reshape every subsystem involved in the brain's homeostasis. Although there have been recent huge advances in understanding the pathophysiology of cognitive dysfunction, a suitable therapeutic approach to vascular dementia remains elusive...
February 19, 2018: CNS & Neurological Disorders Drug Targets
https://www.readbyqxmd.com/read/29468596/an-in-vitro-oxygen-glucose-deprivation-model-for-studying-ischemia-reperfusion-injury-of-neuronal-cells
#4
Myoung-Gwi Ryou, Robert T Mallet
Ischemia-reperfusion syndromes of the heart and brain are the leading cause of death and long-term disability worldwide. Development of effective treatments for myocardial infarction, stroke, cardiac arrest and their sequelae requires preclinical models that replicate specific features of ischemia-reperfusion. The complexities of intact animals, including the integrated function of organ systems, autonomic innervation and endocrine factors, often preclude detailed study of specific components of ischemia-reperfusion injury cascades...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29468588/a-complete-guide-to-using-the-endothelin-1-model-of-stroke-in-conscious-rats-for-acute-and-long-term-recovery-studies
#5
Hima C S Abeysinghe, Carli L Roulston
Multiple methods exist to model permanent and transient ischemia under anesthesia in animals, however most human strokes occur while conscious. The use of endothelin-1 as a vasoconstrictor applied to the perivascular surface of the middle cerebral artery is one of the only methods for inducing stroke in conscious animals. Here, we describe standard operating procedures for stereotaxic placement of an ET-1 guide probe above the middle cerebral artery, induction of stroke in conscious rats, predictive outcome scoring during stroke, and neurological behavioral tests that we use to monitor transient and continuing deficits...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29468587/modeling-transient-focal-ischemic-stroke-in-rodents-by-intraluminal-filament-method-of-middle-cerebral-artery-occlusion
#6
Mary Susan Lopez, Raghu Vemuganti
The middle cerebral artery occlusion (MCAO) model is widely used for inducing a focal cerebral ischemic insult (stroke) in rodents. Here, we describe a method for transient MCAO technique without craniotomy in both mice and rats. In our laboratory, this technique yields consistent secondary brain damage that evolves over a period of 3-7 days of reperfusion after transient MCAO. We also describe the methods for analyzing postischemic motor dysfunction and infarct volume in rodents subjected to transient MCAO...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29468585/intracerebral-hemorrhage-in-mice
#7
Damon Klebe, Loretta Iniaghe, Sherrefa Burchell, Cesar Reis, Onat Akyol, Jiping Tang, John H Zhang
Intracerebral hemorrhage is the most devastating stroke subtype with high rates of mortality and morbidity. Furthermore, no clinically approved treatment exists that effectively increases survival or improves quality of life for survivors. Effective modeling is necessary to elucidate the pathophysiological mechanisms of intracerebral hemorrhage and evaluate potential therapeutic approaches. Rodent models are most utilized because of their cost-effectiveness, and because rodent brain development and structures are well documented...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29468580/measurement-of-intracranial-pressure-in-freely-moving-rats
#8
Michael R Williamson, Roseleen F John, Frederick Colbourne
Brain injury, such as from stroke and trauma, can be complicated by elevated intracranial pressure (ICP). Although raised ICP can be a significant determinant of morbidity and mortality, clinical studies often report widely varying ICP measurements depending on location of measurement and technique used. For the same reasons, reported ICP measurements also vary widely in animal models. The need for anesthesia or tethered connections with some methods of ICP measurement in animals may introduce additional confounds...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29468176/inhibition-of-the-potassium-channel-kv1-3-reduces-infarction-and-inflammation-in-ischemic-stroke
#9
Yi-Je Chen, Hai M Nguyen, Izumi Maezawa, Lee-Way Jin, Heike Wulff
Objective: Inhibitors of the voltage-gated K+ channel Kv1.3 are currently in development as immunomodulators for the treatment of autoimmune diseases. As Kv1.3 is also expressed on microglia and has been shown to be specifically up-regulated on "M1-like" microglia, we here tested the therapeutic hypothesis that the brain-penetrant small-molecule Kv1.3-inhibitor PAP-1 reduces secondary inflammatory damage after ischemia/reperfusion. Methods: We studied microglial Kv1...
February 2018: Annals of Clinical and Translational Neurology
https://www.readbyqxmd.com/read/29467715/limb-remote-ischemic-conditioning-mechanisms-anesthetics-and-the-potential-for-expanding-therapeutic-options
#10
REVIEW
Gangling Chen, Mrugesh Thakkar, Christopher Robinson, Sylvain Doré
Novel and innovative approaches are essential in developing new treatments and improving clinical outcomes in patients with ischemic stroke. Remote ischemic conditioning (RIC) is a series of mechanical interruptions in blood flow of a distal organ, following end organ reperfusion, shown to significantly reduce infarct size through inhibition of oxidation and inflammation. Ischemia/reperfusion (I/R) is what ultimately leads to the irreversible brain damage and clinical picture seen in stroke patients. There have been several reports and reviews about the potential of RIC in acute ischemic stroke; however, the focus here is a comprehensive look at the differences in the three types of RIC (remote pre-, per-, and postconditioning)...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29467645/plasma-exosomal-mirna-122-5p-and-mir-300-3p-as-potential-markers-for-transient-ischaemic-attack-in-rats
#11
Dong-Bin Li, Jing-Li Liu, Wei Wang, Xiu-Mei Luo, Xia Zhou, Jin-Pin Li, Xiao-Li Cao, Xiao-Hong Long, Jia-Gui Chen, Chao Qin
Background: Differentiation of transient ischaemic attack (TIA) from ischaemic stroke within the thrombolysis time window is difficult. Although TIA may be diagnosed within this window, the latest imaging technologies are complex and costly. Serum markers, which are non-invasive, rapid and economic, are used for diagnosis and prognosis of various diseases. Exosome-derived miRNA markers for TIA are unknown. Methods: We examined focal brain ischaemia produced by occlusion of the middle cerebral artery (MCAo) for 5 min, 10 min, and 2 h in rats...
2018: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/29467621/immunosignals-of-oligodendrocyte-markers-and-myelin-associated-proteins-are-critically-affected-after-experimental-stroke-in-wild-type-and-alzheimer-modeling-mice-of-different-ages
#12
Dominik Michalski, Anna L Keck, Jens Grosche, Henrik Martens, Wolfgang Härtig
Because stroke therapies are still limited and patients are often concerned by long-term sequelae with significant impairment of daily living, elaborated neuroprotective strategies are needed. During the last decades, research substantially improved the knowledge on cellular pathologies responsible for stroke-related tissue damage. In this context, the neurovascular unit (NVU) concept has been established, summarizing the affections of neurons, associated astrocytes and the vasculature. Although oligodendrocytes were already identified to play a major role in other brain pathologies, their role during stroke evolution and long-lasting tissue damage is poorly understood...
2018: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/29467568/commentary-addressing-racial-disparities-in-stroke-the-wide-spectrum-investigation-of-stroke-outcome-disparities-on-multiple-levels-wissdom
#13
EDITORIAL
Robert J Adams, Charles Ellis, Gayenell Magwood, Mark S Kindy, Leonardo Bonilha, Daniel T Lackland
Racial-ethnic disparities in stroke recovery are well-established in the United States but the underlying causes are not well-understood. The typical assumption that racial-ethnic disparities in stroke recovery are explained by health care access inequities may be simplistic as access to stroke-related rehabilitation, for example, does not adequately explain the observed disparities. To approach the problem in a more comprehensive fashion, the Wide Spectrum Investigation of Stroke Outcome Disparities on Multiple Levels (WISSDOM) was developed to bring together scientists from Regenerative Medicine, Neurology, Rehabilitation, and Nursing to examine disparities in stroke "recovery...
2018: Ethnicity & Disease
https://www.readbyqxmd.com/read/29467112/interobserver-agreement-between-senior-radiology-resident-neuroradiology-fellow-and-experienced-neuroradiologist-in-the-rating-of-alberta-stroke-program-early-computed-tomography-score-aspects
#14
Chai Kobkitsuksakul, Oranan Tritanon, Vichan Suraratdecha
PURPOSE: The distribution of ischemic changes caused by infarction of the middle cerebral artery (MCA) territories is usually measured using the Alberta Stroke Program Early Computed Tomography Score (ASPECTS). The first interpreter of the brain computed tomography (CT) in the emergency department is the on-call radiology resident. The primary objective of this study was to describe the agreement of the ASPECTS performed retrospectively by the resident compared with expert raters. The second objective was to ascertain the appropriate window setting for early detection of acute ischemic stroke and good interobserver agreement between the interpreters...
February 21, 2018: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/29466210/-elevated-level-of-the-natriuretic-peptide-among-adult-population-in-regions-participating-in-the-esse-rf-study-and-its-association-with-cardiovascular-diseases-and-risk-factors
#15
S A Shalnova, A E Imaeva, A D Deev, V A Metelskaya, G A Muromtseva, A O Konradi, V P Masenko, A Y Efanov, N V Kulakova, O P Rotar, I A Trubacheva, A A Shabunova, E V SHlyakhto, S A Boytsov
AIM: to study associations between elevated blood plasma concentration of N-terminal pro-brain natriuretic peptide (NT-proBNP), risk factors and cardiovascular diseases (CVD) in samples of adult population of Russian Federation (RF) aged 25-64 years. MATERIALS AND METHODS: We analyzed data of examination of representative samples of population of 5 regions of RF obtained within the framework of the multicenter ESSE-RF study (2012-2013). Number of examined subjects was 8 077 (3 176 men)...
December 2017: Kardiologiia
https://www.readbyqxmd.com/read/29465895/-clinical-neurophysiological-methods-in-diagnosis-and-treatment-of-cerebrovascular-diseases
#16
REVIEW
Ildikó Nagy, Dániel Fabó
Neurophysiological methods are gaining ground in the diagnosis and therapy of cerebrovascular disease. While the role of the EEG (electroencephalography) in the diagnosis of post-stroke epilepsy is constant, quantitative EEG para-meters, as new indicators of early efficiency after thrombolysis or in prognosis of patient's condition have proved their effectiveness in several clinical studies. In intensive care units, continuous EEG monitoring of critically ill patients became part of neurointenzive care protocols...
January 30, 2018: Ideggyógyászati Szemle
https://www.readbyqxmd.com/read/29462622/additional-increased-effects-of-mannitol-temozolomide-combined-treatment-on-blood-brain-barrier-permeability
#17
Chunggab Choi, Hye Min Kim, Jeeheun Shon, Jiae Park, Hyeong-Taek Kim, Seung-Hun Oh, Nam Keun Kim, Ok-Joon Kim
The blood-brain barrier (BBB) is major obstacle in drug or stem cell treatment in chronic stroke. We hypothesized that adding mannitol to temozolomide (TMZ) is a practically applicable method for resolving the low efficacy of intravenous mannitol therapy. In this study, we investigated whether BBB permeability could be increased by this combined treatment. First, we established a chronic ischemic stroke rat model and examined changes in leakage of Evans blue dye within a lesion site, and in expression of tight junction proteins (TJPs), by this combined treatment...
February 17, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29462606/limb-remote-ischemic-post-conditioning-mitigates-brain-recovery-in-a-mouse-model-of-ischemic-stroke-by-regulating-reactive-astrocytic-plasticity
#18
Xue Cheng, Haiping Zhao, Feng Yan, Zhen Tao, Rongliang Wang, Ziping Han, Guangwen Li, Yumin Luo, Xunming Ji
Maladaptive alterations of astrocytic plasticity may cause brain edema in the acute stage of stroke and glial scar formation in the recovery stage. The present study was designed to investigate the potential regulation of limb remote ischemic post-conditioning (RIPC) on astrocytic plasticity in experimental cerebral ischemia-reperfusion injury. Cerebral ischemia was induced by transient middle cerebral artery occlusion (tMCAO) for 1 h in C57BL/6 mice, who were treated with RIPC immediately after reperfusion...
February 17, 2018: Brain Research
https://www.readbyqxmd.com/read/29461514/a-large-open-source-dataset-of-stroke-anatomical-brain-images-and-manual-lesion-segmentations
#19
Sook-Lei Liew, Julia M Anglin, Nick W Banks, Matt Sondag, Kaori L Ito, Hosung Kim, Jennifer Chan, Joyce Ito, Connie Jung, Nima Khoshab, Stephanie Lefebvre, William Nakamura, David Saldana, Allie Schmiesing, Cathy Tran, Danny Vo, Tyler Ard, Panthea Heydari, Bokkyu Kim, Lisa Aziz-Zadeh, Steven C Cramer, Jingchun Liu, Surjo Soekadar, Jan-Egil Nordvik, Lars T Westlye, Junping Wang, Carolee Winstein, Chunshui Yu, Lei Ai, Bonhwang Koo, R Cameron Craddock, Michael Milham, Matthew Lakich, Amy Pienta, Alison Stroud
Stroke is the leading cause of adult disability worldwide, with up to two-thirds of individuals experiencing long-term disabilities. Large-scale neuroimaging studies have shown promise in identifying robust biomarkers (e.g., measures of brain structure) of long-term stroke recovery following rehabilitation. However, analyzing large rehabilitation-related datasets is problematic due to barriers in accurate stroke lesion segmentation. Manually-traced lesions are currently the gold standard for lesion segmentation on T1-weighted MRIs, but are labor intensive and require anatomical expertise...
February 20, 2018: Scientific Data
https://www.readbyqxmd.com/read/29460889/-cerebral-infarctions-in-vertebrobasilar-artery-atherosclerosis
#20
P L Anufriev, A N Evdokimenko, T S Gulevskaya
AIM: to obtain more specific information on the morphology and pathogenesis of cerebral infarctions occurring in vertebrobasilar artery (VBA) atherosclerosis. MATERIAL AND METHODS: Macro- and microscopic investigations of the brain, its arterial system, and heart were conducted in 69 autopsy cases with infarctions located in the vertebrobasilar system (VBS) in atherosclerosis. RESULTS: 69 cases were found to have 206 VBA infarctions of various extent and locations...
2018: Arkhiv Patologii
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