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Cerebral infarction

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https://www.readbyqxmd.com/read/28105979/human-dental-pulp-stem-cells-are-more-effective-than-human-bone-marrow-derived-mesenchymal-stem-cells-in-cerebral-ischemic-injury
#1
Miyeoun Song, Jae-Hyung Lee, Jinhyun Bae, Youngmin Bu, Eun-Cheol Kim
We compared the therapeutic effects and mechanism of transplanted human dental pulp stem cells (hDPSCs) and human bonemarrow-derived mesenchymal stem cells (hMSCs) in a stroke model of rats and an <i>in vitro</i> ischemic model. Both hDPSCs- and hMSCs- intravenously injected rats 24&#8201;h after middle cerebral artery occlusion showed improved functional recovery and reduced infarct volume versus control rats, but the hDPSCs group showed greater reduction in infarct volume than hMSCs. The positive area for the endothelial cell marker was greater in the lesion boundary areas in the hDPSCs group than with hMSCs...
January 20, 2017: Cell Transplantation
https://www.readbyqxmd.com/read/28104915/visceral-obesity-is-associated-with-white-matter-hyperintensity-and-lacunar-infarct
#2
K W Kim, H Seo, M-S Kwak, D Kim
BACKGROUND: The presences of white matter hyperintensity (WMH) and lacunar infarct are recognized as risk factors of dementia, stroke, and mortality. It is undetermined whether visceral adipose tissue (VAT) area is associated with an increased risk of cerebral small vessel disease. We explored whether VAT area was responsible for cerebral small vessel disease through the identification of WMH and lacunar infarct. SUBJECTS: A total of 2046 subjects free of cerebrovascular disease who underwent brain magnetic resonance imaging (MRI) and abdominal fat computed tomography (CT) during a general health check-up were enrolled...
January 20, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28104728/early-and-long-term-cognitive-outcome-after-conventional-cardiac-valve-surgery
#3
Stephan C Knipp, Christian Weimar, Marc Schlamann, Sebastian Schweter, Daniel Wendt, Matthias Thielmann, Jaroslav Benedik, Heinz Jakob
OBJECTIVES: Adverse cognitive outcome is well recognized after coronary artery bypass grafting (CABG) while little is known about the extent and duration of decline after cardiac valve surgery. We investigated changes in cognitive function following conventional cardiac valve surgery over up to 4 years. METHODS: Among 36 patients (65.2 ± 9.2 years, 36% women) who received valve surgery, we assessed serial cognitive function with a battery of 11 standardized tests across 3-4 years...
January 18, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28104522/intra-arterial-use-of-abciximab-in-thromboembolic-complications-associated-with-cerebral-aneurysm-coiling-the-london-ontario-experience
#4
R Martínez-Pérez, S P Lownie, D M Pelz
BACKGROUND: and Purpose: Experience with intra-arterial infusion of abciximab for the treatment of endovascular thrombotic complications is limited to short case series. Our objective is to evaluate the safety and effectiveness of this drug for the treatment of thromboembolic complications during aneurysm coiling and determine the risk factors. METHODS: From an aneurysm coiling database, patients treated with intra-arterial abciximab after having thrombotic complications during the coiling procedure were selected for analysis...
January 16, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28104485/green-channel-autofluorescence-imaging-a-novel-and-sensitive-technique-to-delineate-infarcts
#5
Kang-Hoon Je, Wi-Sun Ryu, Su-Kyoung Lee, Eo Jin Kim, Jeong-Yeon Kim, Hee Jeong Jang, Jung E Park, Matthias Nahrendorf, Dawid Schellingerhout, Dong-Eog Kim
BACKGROUND: We have found that infarcted brain regions exhibit green channel autofluorescence (GCAF). Here, we compare ex vivo GCAF-imaging with 2,3,5-triphenylteterazolium chloride (TTC)-staining. NEW METHOD: C57BL/6 mice (n=120) underwent GCAF-imaging after transient or permanent middle cerebral artery occlusion (tMCAO or pMCAO). COMPARISON WITH EXISTING METHODS: TTC-staining may not reflect subtle ischemic injury. TTC-stained tissues, when reused, are prone to processing artifacts related to prior TTC-staining...
January 16, 2017: Journal of Neuroscience Methods
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
#6
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/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/28097014/development-and-evaluation-of-a-formula-for-predicting-introduction-of-medication-self-management-in-stroke-patients-in-the-kaifukuki-rehabilitation-ward
#8
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/28096971/carthamus-tinctorius-l-ameliorates-brain-injury-followed-by-cerebral-ischemia-reperfusion-in-rats-by-antioxidative-and-anti-inflammatory-mechanisms
#9
Pin-Kuei Fu, Tai-Long Pan, Chi-Yu Yang, Kee-Ching Jeng, Nou-Ying Tang, Ching-Liang Hsieh
OBJECTIVES: Carthamus tinctorius L. (CT) or safflower is widely used in traditional Chinese medicine. This study investigated the effects of CT extract (CTE) on ischemia-reperfusion (I/R) brain injury and elucidated the underlying mechanism. MATERIALS AND METHODS: The I/R model was conducted by occlusion of both common carotid arteries and right middle cerebral artery for 90 min followed by 24 hr reperfusion in Sprague-Dawley rats. CTE (0.2-0.6 g/kg) was administered intraperitoneally before and during ischemia, and during reperfusion period...
December 2016: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28096576/role-of-edaravone-in-managemant-of-septic-peritonitis
#10
Ghada Fouad Elbaradey, Nagat Sayed Elshmaa, Hossam Hodeib
BACKGROUND AND AIMS: Sepsis is a complex rapidly progressive infectious disease that remain a major cause of morbidity and mortality in surgical patients and trauma victims. Edaravone a novel free radical scavenger was approved in 2001 in Japan for treatment of acute cerebral and myocardial infarction. Hence, in this work we attempt to evaluate its role in cases of septic peritonitis (SP). MATERIAL AND METHODS: This is a prospective randomized observer-blinded study carried out in surgical Intensive Care Unit (ICU) after approval by Hospital Ethical Committee...
October 2016: Journal of Anaesthesiology, Clinical Pharmacology
https://www.readbyqxmd.com/read/28095921/papillary-fibroelastoma-of-the-aortic-valve-presenting-with-chronic-angina-and-acute-stroke-a-case-report
#11
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/28094851/blood-transfusion-for-preventing-primary-and-secondary-stroke-in-people-with-sickle-cell-disease
#12
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/28093478/long-non-coding-rna-malat1-regulates-cerebrovascular-pathologies-in-ischemic-stroke
#13
Xuejing Zhang, Xuelian Tang, Kai Liu, Milton H Hamblin, Ke-Jie Yin
: The study is designed to determine the role of long non-coding RNA (lncRNA), metastasis associated lung adenocarcinoma transcript 1 (Malat1), in ischemic stroke outcome. Primary mouse brain microvascular endothelial cells (BMECs) were cultured and treated with Malat1 GapmeR prior to 16h oxygen and glucose depravation (OGD). Cell death was assayed by LDH and MTT methods. Malat1 knockout and wildtype mice were subjected to 1h of middle cerebral artery occlusion (MCAO) and 24-72h of reperfusion...
January 16, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28091936/task-specific-motor-rehabilitation-therapy-after-stroke-improves-performance-in-a-different-motor-task-translational-evidence
#14
M El Amki, P Baumgartner, O Bracko, A R Luft, S Wegener
While the stroke survivor with a motor deficit strives for recovery of all aspects of daily life movements, neurorehabilitation training is often task specific and does not generalize to movements other than the ones trained. In rodent models of post-stroke recovery, this problem is poorly investigated as the training task is often the same as the one that measures motor function. The present study investigated whether motor training by pellet reaching translates into enhancement of different motor functions in rats after stroke...
January 14, 2017: Translational Stroke Research
https://www.readbyqxmd.com/read/28091829/inhibition-of-dpp-4-activity-and-neuronal-atrophy-with-genistein-attenuates-neurological-deficits-induced-by-transient-global-cerebral-ischemia-and-reperfusion-in-streptozotocin-induced-diabetic-mice
#15
Mithun Singh Rajput, Purnima Dey Sarkar, Nilesh Prakash Nirmal
Genistein, an isoflavonoid phytoestrogen, has been known for its potential pharmacological properties especially for neuroprotection and treating diabetes. The present study aims to determine the neuroprotective efficacy of genistein against global cerebral ischemia-reperfusion-induced neuronal injury in streptozotocin-induced diabetic mice and explore the underlying mechanisms. Streptozotocin-induced diabetic mice were subjected to transient cerebral ischemia by occluding both common carotid arteries for 30 min followed by 24 h reperfusion to induce neuronal injury...
January 16, 2017: Inflammation
https://www.readbyqxmd.com/read/28090044/acute-multiple-cerebral-infarction-in-a-patient-with-an-accessory-mitral-valve
#16
Ikuo Misumi, Asako Nagao, Katsuya Iwamoto, Tsuyoshi Honda, Masanobu Ishii, Hidetsugu Ueyama, Yasushi Maeda, Masatoshi Ishizaki, Ryoichi Kurisaki, Toshio Okazaki, Tetsuji Yamashita, Akiko Fujimoto, Yumi Honda
A 96-year-old woman developed hemiparesis 2 weeks after orthopedic surgery. Magnetic resonance imaging revealed multiple cerebral infarctions in the bilateral hemisphere. Transthoracic echocardiography revealed a mobile structure attached to the anterior mitral leaflet that protruded toward the left ventricular outflow tract. The structure was identified as an accessory mitral valve. Doppler echocardiography showed that there was no significant left ventricular outflow obstruction. This is a rare case of a silent accessory mitral valve that was detected after multiple cerebral infarctions...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28088349/stroke-biomarkers-in-clinical-practice-a-critical-appraisal
#17
REVIEW
Geelyn J L Ng, Amy M L Quek, Christine Cheung, Thiruma V Arumugam, Raymond C S Seet
Biomarkers provide critical mechanistic insights to key biologic processes that occur during cerebral ischemia which, when carefully applied, can improve clinical decision-making in acute stroke management. The translation of a blood-based biomarker in ischemic stroke to clinical practice is challenging, in part, due to the complexity of ischemic stroke pathogenesis and the presence of a blood-brain barrier that restricts the release of brain-specific markers into the circulation. The pathologic and clinical aspects of ischemic stroke are described in this review, where a non-exhaustive list of biomarkers that interrogate different aspects of ischemic stroke such as oxidative damage, inflammation, thrombus formation, cardiac function and brain injury are described...
January 11, 2017: Neurochemistry International
https://www.readbyqxmd.com/read/28088348/neuroprotective-effects-of-kukoamine-a-against-cerebral-ischemia-via-antioxidant-and-inactivation-of-apoptosis-pathway
#18
Jia Liu, Xiaowen Jiang, Qiao Zhang, Sen Lin, Jun Zhu, Yajun Zhang, Jiabao Du, Xiaolong Hu, Weihong Meng, Qingchun Zhao
Kukoamine A (KuA) is a bioactive compound, which is known for a hypotensive effect. Recent studies have shown that KuA has anti-oxidative effect and anti-apoptosis stress in vitro. However, its neuroprotective effect in rats with cerebral ischemia is still unclear. In the study, we investigated whether KuA could attenuate cerebral ischemia induced by permanent middle cerebral artery occlusion (pMCAO) in rats. Results revealed that KuA could significantly reduce infarct volume both pre-treatment and post-treatment, and increase corresponding Garcia neurological scores...
January 11, 2017: Neurochemistry International
https://www.readbyqxmd.com/read/28087909/-tripotolide-ameliorates-inflammation-and-apoptosis-induced-by-focal-cerebral-ischemia-reperfusion-in-rats
#19
Shi Bai, Yayi Sun, Lijuan Wu, Zhongmin Wu, Marong Fang
Objective: To investigate the effects of triptolide on inflammation and apoptosis induced by focal cerebral ischemia/reperfusion in rats. Methods: The rat model of focal cerebral ischemia/reperfusion injury was established according to Longa's method. A total of 80 SD rats were randomly divided into 5 groups:normal control, sham group, DMSO group, middle cerebral artery occlusion (MCAO) group, and MCAO with tripolide treatment group. TTC staining was used to examine the site and volume of cerebral infarction, and Longa score was employed for neurological disorders measurement...
May 25, 2016: Zhejiang da Xue Xue Bao. Yi Xue Ban, Journal of Zhejiang University. Medical Sciences
https://www.readbyqxmd.com/read/28087806/splenectomy-does-not-improve-long-term-outcome-after-stroke
#20
Dannielle Zierath, Angela Shen, Astiana Stults, Theresa Olmstead, Kyra J Becker
BACKGROUND AND PURPOSE: Immune responses to brain antigens after stroke contribute to poor outcome. We hypothesized that splenectomy would lessen the development of such responses and improve outcome. METHODS: Male Lewis rats (275-350 g) underwent 2-hour middle cerebral artery occlusion immediately after splenectomy or sham splenectomy. Animals were survived to 4 weeks (672 hrs), and immune responses to myelin basic protein determined at euthanasia. Infarct volume was determined in a subset of animals euthanized at 72 hours...
January 13, 2017: Stroke; a Journal of Cerebral Circulation
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