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Cerebral stroke

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https://www.readbyqxmd.com/read/28103599/evaluations-of-intravenous-administration-of-cd34-human-umbilical-cord-blood-cells-in-a-mouse-model-of-neonatal-hypoxic-ischemic-encephalopathy
#1
Makiko Ohshima, Akihiko Taguchi, Yoshiaki Sato, Yuko Ogawa, Satoshi Saito, Kenichi Yamahara, Masafumi Ihara, Mariko Harada-Shiba, Tomoaki Ikeda, Tomohiro Matsuyama, Masahiro Tsuji
Several cell therapies have been explored as novel therapeutic strategies for neonatal encephalopathy because the benefits of current treatments are limited. We previously reported that intravenous administration of human umbilical cord blood (hUCB) CD34+ cells (hematopoietic stem cells/endothelial progenitor cells) at 48 h after insult exerts therapeutic effects in neonatal mice with stroke, i.e., permanent middle cerebral artery occlusion. Although neonatal stroke and hypoxic-ischemic encephalopathy (HIE) are grouped under the term "neonatal encephalopathy," their pathogenesis differs...
January 20, 2017: Developmental Neuroscience
https://www.readbyqxmd.com/read/28103118/park2-dependent-mitophagy-induced-by-acidic-postconditioning-protects-against-focal-cerebral-ischemia-and-extends-the-reperfusion-window
#2
Zhe Shen, Yanrong Zheng, Jiaying Wu, Ying Chen, Xiaoli Wu, Yiting Zhou, Yang Yuan, Shousheng Lu, Lei Jiang, Zhenghong Qin, Zhong Chen, Weiwei Hu, Xiangnan Zhang
Prompt reperfusion after cerebral ischemia is critical for neuronal survival. Any strategies that extend the limited reperfusion window will be of great importance. Acidic postconditioning (APC) is a mild acidosis treatment that involves inhaling CO2 during reperfusion following ischemia. APC attenuates ischemic brain injury although the underlying mechanisms have not been elucidated. Here we report that APC reinforces ischemia-reperfusion-induced mitophagy in middle cortical artery occlusion (MCAO)-treated mice, and in oxygen-glucose deprivation (OGD)-treated brain slices and neurons...
January 19, 2017: Autophagy
https://www.readbyqxmd.com/read/28102623/ischemic-stroke-in-kawasaki-disease
#3
Wasana Prangwatanagul, Alisa Limsuwan
Pediatric stroke is considered to be rare. Stroke resulting from cerebral vasculitis is also uncommon in young children. With the increasing prevalence of Kawasaki disease (KD) diagnosis, this acquired vasculitis has been reported with various clinical presentations including neurological symptoms. Herein we describe the case of a KD patient presenting with stroke. A 15-month-old boy was referred due to stroke that occurred on the fifth day of febrile illness. He was initially admitted to another hospital due to fever and diarrhea...
January 2017: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/28102473/the-role-of-glun2a-in-cerebral-ischemia-promoting-neuron-death-and-survival-in-the-early-stage-and-thereafter
#4
REVIEW
Yongjun Sun, Xiaokun Cheng, Jie Hu, Zibin Gao
Over-activation of NMDA receptors is a crucial step required for brain damage following a stroke. Although clinical trials for NMDA receptor blockers have failed, the role of GluN2A subunit in cerebral ischemia has been extensively evaluated in recent years. However, the effect of GluN2A on neuron damage induced by cerebral ischemia remains a matter of controversy. The underlying reason may be that GluN2A mediates both pro-death and pro-survival effects. These two effects result from two mutually excluding pathways, Ca(2+) overload-dependent pro-death signaling and C-terminal-dependent pro-survival signaling, respectively...
January 19, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28102082/characterization-of-the-molecular-mechanisms-underlying-the-chronic-phase-of-stroke-in-a-cynomolgus-monkey-model-of-induced-cerebral-ischemia
#5
Henry C H Law, Samuel S W Szeto, Quan Quan, Yun Zhao, Zaijun Zhang, Olga Krakovska, Leong Ting Lui, Chengyou Zheng, Simon Ming Yuen Lee, K W Michael Siu, Yuqiang Wang, Ivan K Chu
Stroke is one of the main causes of mortality and long-term disability worldwide. The pathophysiological mechanisms underlying this disease are not well understood, particularly in the chronic phase after the initial ischemic episode. In this study, a Macaca fascicularis stroke model consisting of two sample groups, as determined by MRI-quantified infarct volumes as a measure of the stroke severity 28 days after the ischemic episode, was evaluated using qualitative and quantitative proteomics analyses. By using multiple online multidimensional liquid chromatography platforms, 8790 non-redundant proteins that condensed to 5223 protein groups at 1% global false discovery rate (FDR)...
January 19, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/28101763/mir-126-affects-brain-heart-interaction-after-cerebral-ischemic-stroke
#6
Jieli Chen, Chengcheng Cui, Xiaoping Yang, Jiang Xu, Poornima Venkat, Alex Zacharek, Peng Yu, Michael Chopp
Cardiovascular diseases are approximately three times higher in patients with neurological deficits than in patients without neurological deficits. MicroRNA-126 (MiR-126) facilitates vascular remodeling and decreases fibrosis and is emerging as an important factor in the pathogenesis of cardiovascular diseases and cerebral stroke. In this study, we tested the hypothesis that decreased miR-126 after ischemic stroke may play an important role in regulating cardiac function. Wild-type (WT), specific conditional-knockout endothelial cell miR-126 (miR-126(EC-/-)), and miR-126 knockout control (miR-126(fl/fl)) mice were subjected to distal middle cerebral artery occlusion (dMCAo) (n = 10/group)...
January 19, 2017: Translational Stroke Research
https://www.readbyqxmd.com/read/28101484/cadasil-initially-presented-with-a-seizure
#7
Jung-Hwan Oh, Bong Su Kang, Jay Chol Choi
Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is a hereditary disease of the cerebral small blood vessels characterized by recurrent ischemic strokes, migraine, and progressive cognitive impairment. In patients with CADASIL, in whom subcortical white matter structures are typically involved, epileptic seizures have been rarely reported as an initial clinical symptom. We describe a patient genetically confirmed as having CADASIL who initially presented with a seizure...
December 2016: Journal of Epilepsy Research
https://www.readbyqxmd.com/read/28101148/cell-therapy-for-cerebral-hemorrhage-five-year-follow-up-report
#8
Zhitian Chang, Gengsheng Mao, Lizhong Sun, Qiang Ao, Yongquan Gu, Ying Liu
The aim of the study was to examine treatment of cerebral hemorrhages with bone-marrow or human umbilical cord-derived mesenchymal stem cells (BMSCs or Hu-MSCs) and conventional surgical approaches, and determine and compare the effectiveness, feasibility, safety and reproducibility of each method. A retrospective analysis was performed on a cohort of cell-treated cerebral hemorrhage patients from October 1, 2007 to October 1, 2009. A total of 24 patients, all of whom received conventional surgical treatment, were classified as follows: i) The control group consisted of 8 patients who received only hematoma removal surgery, ii) the autologous group consisted of 7 patients who received additional autologous bone marrow mononuclear cell transplantation, and iii) the allograft group consisted of 9 patients who received additional umbilical cord mononuclear cell transplantation...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28101099/magnetic-resonance-volumetry-prediction-of-subjective-memory-complaints-and-mild-cognitive-impairment-and-associations-with-genetic-and-cardiovascular-risk-factors
#9
Sigbjørn Rogne, Torgil Vangberg, Petter Eldevik, Gry Wikran, Ellisiv B Mathiesen, Henrik Schirmer
BACKGROUND/AIMS: Subjective memory complaints (SMC) are strong predictors of mild cognitive impairment (MCI) and subsequent Alzheimer's disease. Our aims were to see if fully automated cerebral MR volume measurements could distinguish subjects with SMC and MCI from controls, and if probable parental late-onset Alzheimer's disease (LOAD), apolipoprotein E ε4 genotype, total plasma homocysteine, and cardiovascular risk factors were associated with MR volumetric findings. METHODS: 198 stroke-free subjects comprised the control (n = 58), the SMC (n = 25) and the MCI (n = 115) groups...
September 2016: Dementia and Geriatric Cognitive Disorders Extra
https://www.readbyqxmd.com/read/28099557/patients-with-sickle-cell-disease-are-frequently-excluded-from-the-benefits-of-transcranial-doppler-screening-for-the-risk-of-stroke-despite-extensive-and-compelling-evidence
#10
Daniela Laranja Gomes Rodrigues, Samuel Ademola Adegoke, Rejane de Souza Macedo Campos, Josefina Aparecida Pellegrini Braga, Maria Stella Figueiredo, Gisele Sampaio Silva
Methods: Transcranial doppler was performed in accordance with the Stroke Prevention Trial in Sickle Cell Anemia Protocol. Results: Of the 396 patients, 69.5% had homozygous SS hemoglobin. The TCD result was abnormal in 4.8%, conditional in 12.6%, inadequate in 4.3% and abnormally low in 1% of patients. The highest mean flow velocities were 121±23.83cm/s and 124±27.21cm/s in the left and right middle cerebral artery respectively. A total of 28.8% patients (mean age 9...
January 2017: Arquivos de Neuro-psiquiatria
https://www.readbyqxmd.com/read/28097014/development-and-evaluation-of-a-formula-for-predicting-introduction-of-medication-self-management-in-stroke-patients-in-the-kaifukuki-rehabilitation-ward
#11
Hisato Fujihara, Mari Kogo, Isao Saito, Nobuyuki Kawate, Masazumi Mizuma, Hiroko Suzuki, Jun-Ichiro Murayama, Tadanori Sasaki
BACKGROUND: Medication self-management in stroke patients is important to prevent further progression of disease and incidence of side effects. The purpose of this study was to create a formula for predicting medication self-management introduction in stroke patients using functional independence measure items and patient data, including medication-related information. METHODS: This was a retrospective analysis of 104 patients (cerebral infarction, cerebral hemorrhage, subarachnoid hemorrhage) discharged from the Kaifukuki rehabilitation ward at Showa University Fujigaoka Rehabilitation Hospital from January to December 2012...
2017: Journal of Pharmaceutical Health Care and Sciences
https://www.readbyqxmd.com/read/28096590/posterior-cerebral-stroke-an-unusual-cause-of-postoperative-bilateral-sensorineural-hearing-loss-after-laparoscopic-surgery
#12
Jyotsna Punj, Nagaraj, Divya, P Preetam, Vanlal Darlong, Ravindra Pandey
No abstract text is available yet for this article.
October 2016: Journal of Anaesthesiology, Clinical Pharmacology
https://www.readbyqxmd.com/read/28096478/demographic-procedural-and-30-day-safety-results-from-the-web-intra-saccular-therapy-study-web-it
#13
David Fiorella, Andrew Molyneux, Alexander Coon, Istvan Szikora, Isil Saatci, Feyyaz Baltacioglu, Ali Sultan, Adam Arthur
INTRODUCTION: The Woven EndoBridge (WEB) represents a novel intrasaccular therapeutic option for the treatment of intracranial wide-necked bifurcation aneurysms (WNBAs). The WEB-IT Study is a pivotal Investigational Device Exemption (IDE) study to determine the safety and effectiveness of the WEB device for the treatment of WNBAs located in the anterior and posterior intracranial circulations. We present the patient demographics, procedural characteristics, and 30-day adverse event data for the US WEB-IT study...
January 17, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28095921/papillary-fibroelastoma-of-the-aortic-valve-presenting-with-chronic-angina-and-acute-stroke-a-case-report
#14
Fan Zhang, Ziqiang Zhu, Gautham K Upadhya, Jiankun Tong, Vlad Gotlieb, Abdullah Khan, Rakesh P Gupta
BACKGROUND: Papillary fibroelastomas are rare, benign cardiac tumors that are often found on cardiac valvular surfaces. Most are incidental discoveries during surgery or autopsy. The clinical presentation of fibroelastoma varies widely, ranging from clinically asymptomatic to severe thromboembolic events. CASE PRESENTATION: We report a case of 65-year-old white man diagnosed with scattered, bilateral acute cerebral hemisphere infarcts with a history of chronic angina...
January 18, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28095900/post-stroke-dementia-a-comprehensive-review
#15
REVIEW
Milija D Mijajlović, Aleksandra Pavlović, Michael Brainin, Wolf-Dieter Heiss, Terence J Quinn, Hege B Ihle-Hansen, Dirk M Hermann, Einor Ben Assayag, Edo Richard, Alexander Thiel, Efrat Kliper, Yong-Il Shin, Yun-Hee Kim, SeongHye Choi, San Jung, Yeong-Bae Lee, Osman Sinanović, Deborah A Levine, Ilana Schlesinger, Gillian Mead, Vuk Milošević, Didier Leys, Guri Hagberg, Marie Helene Ursin, Yvonne Teuschl, Semyon Prokopenko, Elena Mozheyko, Anna Bezdenezhnykh, Karl Matz, Vuk Aleksić, DafinFior Muresanu, Amos D Korczyn, Natan M Bornstein
Post-stroke dementia (PSD) or post-stroke cognitive impairment (PSCI) may affect up to one third of stroke survivors. Various definitions of PSCI and PSD have been described. We propose PSD as a label for any dementia following stroke in temporal relation. Various tools are available to screen and assess cognition, with few PSD-specific instruments. Choice will depend on purpose of assessment, with differing instruments needed for brief screening (e.g., Montreal Cognitive Assessment) or diagnostic formulation (e...
January 18, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28095899/what-is-the-relationship-between-type-2-diabetes-mellitus-status-and-the-neuroradiological-correlates-of-cerebral-small-vessel-disease-in-adults-protocol-for-a-systematic-review
#16
Clark Funnell, Mary M Doyle-Waters, Samuel Yip, Thalia Field
BACKGROUND: Cerebral small vessel disease (CSVD) is a common cause of stroke, dementia, and functional decline. In recent years, neuroradiologic correlates of CSVD have been identified. These imaging findings, best characterized on magnetic resonance imaging (MRI), include some combination of white matter hyperintensities, lacunes, cerebral microbleeds, enlarged perivascular spaces, and cerebral atrophy. Though some cohorts have reported that participants with type 2 diabetes mellitus (T2DM), an important risk factor for CSVD, may have a distinct neuroradiologic phenotype, this relationship is not well-characterized...
January 17, 2017: Systematic Reviews
https://www.readbyqxmd.com/read/28094851/blood-transfusion-for-preventing-primary-and-secondary-stroke-in-people-with-sickle-cell-disease
#17
REVIEW
Lise J Estcourt, Patricia M Fortin, Sally Hopewell, Marialena Trivella, Winfred C Wang
BACKGROUND: Sickle cell disease is one of the commonest severe monogenic disorders in the world, due to the inheritance of two abnormal haemoglobin (beta globin) genes. Sickle cell disease can cause severe pain, significant end-organ damage, pulmonary complications, and premature death. Stroke affects around 10% of children with sickle cell anaemia (HbSS). Chronic blood transfusions may reduce the risk of vaso-occlusion and stroke by diluting the proportion of sickled cells in the circulation...
January 17, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28094088/usefulness-of-multiparametric-computerized-tomography-findings-in-the-differential-diagnosis-of-stroke-mimics-of-epileptic-origin-a-preliminary-study
#18
R López Ruiz, S Quintas, P Largo, M de Toledo, M T Carreras, A Gago-Veiga, R Manzanares, J Vivancos
OBJECTIVE: Thirty percent of the patients for whom code stroke is activated have stroke mimics, the most common being epilepsy. Our purpose was to evaluate the usefulness of multiparametric CT for differentiating between seizure-related symptoms and vascular events. MATERIAL AND METHODS: We conducted a retrospective observational study; data were gathered prospectively during one year. We studied multiparametric CT images of patients admitted following code stroke activation and finally diagnosed with epilepsy...
January 13, 2017: Neurología: Publicación Oficial de la Sociedad Española de Neurología
https://www.readbyqxmd.com/read/28094079/a-stroke-mimic-methotrexate-induced-neurotoxicity-in-the-emergency-department
#19
Patrick Rogers, Wilbur J Pan, Richard A Drachtman, Christopher Haines
BACKGROUND: Acute lymphoblastic leukemia (ALL) is the most common form of childhood leukemia. The treatment of ALL involves multimodality therapy, and methotrexate (MTX) remains a mainstay of treatment. A complication of MTX therapy includes acute, subacute, and chronic neurotoxocity. Signs and symptoms may range from headaches, dizziness, and mood disorders to seizures and stroke-like symptoms. CASE REPORT: An 18-year-old woman with a history of ALL presented to the emergency department with acute onset of right-sided facial paralysis, right upper extremity flaccid paralysis, and right lower extremity weakness after receiving MTX therapy 3 days earlier...
January 13, 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28093678/changes-in-serum-vascular-endothelial-growth-factor-and-endostatin-concentrations-associated-with-circulating-endothelial-progenitor-cells-after-acute-ischemic-stroke
#20
Lixia Xue, Hao Chen, Ting Zhang, Jingjiong Chen, Zhi Geng, Yuwu Zhao
Angiogenesis is an important pathophysiological response to cerebral ischemia, and can be modulated by vascular endothelial growth factor (VEGF) and endostatin. Circulating endothelial progenitor cells (EPCs) also play an important role as an endogenous repair mechanism for ischemic injury. We sought to investigate early changes in the expression of VEGF and endostatin in serum and the circulating EPCs in patients with acute ischemic stroke (AIS) and analyzed the relations between them. The peripheral blood and serum samples were obtained from 30 patients at 1, 3, 5 and 7 d after AIS...
January 16, 2017: Metabolic Brain Disease
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