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https://www.readbyqxmd.com/read/28648010/-experience-of-sun-s-procedure-for-chronic-type-b-dissection-with-aortic-arch-involvement
#1
R D Qi, J M Zhu, L Chen, C N Li, Z Y Qiao, L J Cheng, Y P Ge, H O Hu, Y Xia, X Y Xing, T Zheng, Y M Liu, L Z Sun
Objective: To study the surgical treatment of chronic type B dissection with aortic arch involvement using Sun's procedure. Methods: Between February 2009 and December 2015, 29 patients [20 males, 9 females, with a mean age of (41±12) years, range 24-64 years] with type B dissection with aortic arch involvement underwent Sun's procedure. Sixteen patient had a history of hypertension. Marfan syndrome was observed in 9 cases, coronary artery disease in 3 cases, mitral regurgitation in 3 patients, cerebrovascular disease in one patient...
June 27, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28648002/-application-value-of-whole-brain-3d-artery-spin-labeling-in-diagnosis-of-intracranial-tumors
#2
Q Q Zhao, Q X Yang, G X Xu, Y C Lü, D L Rong, L Liu, R Zhang
Objective: To investigate the perfusion characteristics of arterial spin labeling (ASL) in intracranial tumor and its application value in classification. Methods: The clinical, pathological and imaging data of 44 patients with gliomas confirmed by pathology were analyzed retrospectively, including 9 low grade gliomas, 15 high grade gliomas, 11 cases of meningiomas, 6 cases of neurilemmoma, 3 cases of metastatic tumors.Conventional plain scan, 3D- ASL and MRI dynamic enhanced imaging (DSC-MRI) were performed...
June 20, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28647705/revolution-in-acute-ischaemic-stroke-care-a-practical-guide-to-mechanical-thrombectomy
#3
REVIEW
Matthew Evans, Phil White, Peter Cowley, David Werring
Rapid, safe and effective arterial recanalisation to restore blood flow and improve functional outcome remains the primary goal of hyperacute ischaemic stroke management. The benefit of intravenous thrombolysis with recombinant tissue-type plasminogen activator for patients with severe stroke due to large artery occlusion is limited; early recanalisation is generally less than 30% for carotid, proximal middle cerebral artery or basilar artery occlusion. Since November 2014, nine positive randomised controlled trials of mechanical thrombectomy for large vessel occlusion in the anterior circulation have led to a revolution in the care of patients with acute ischaemic stroke...
June 24, 2017: Practical Neurology
https://www.readbyqxmd.com/read/28647420/increased-prevalence-of-cerebrovascular-disease-in-hospitalized-patients-with-ehlers-danlos-syndrome
#4
Sarasa T Kim, Harry Cloft, Kelly D Flemming, David F Kallmes, Giuseppe Lanzino, Waleed Brinjikji
BACKGROUND AND PURPOSE: Small studies have suggested that Ehlers-Danlos syndrome (EDS) is associated with a number of cerebrovascular complications. We sought to determine whether a clinical diagnosis of EDS is associated with a higher prevalence of cerebrovascular diseases than the general population by performing a case-control study of hospitalized patients in the Nationwide Inpatient Sample (NIS). METHODS: Using the 2000-2012 NIS, we performed a case-control study matching cases of EDS to controls without such a diagnosis...
June 21, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28647416/related-factors-of-asymmetrical-vein-sign-in-acute-middle-cerebral-artery-stroke-and-correlation-with-clinical-outcome
#5
Jinchao Yu, Liming Wang, Zhenzhi Li, Shanshan Wang, Guangbin Wang
OBJECTIVE: The aim of our study was to analyze the related factors of asymmetrical cortical vein sign (ACVS) and asymmetrical medullary vein sign (AMVS) on susceptibility-weighted imaging (SWI) in patients with acute middle cerebral artery (MCA) stroke and whether their presence can be used as an independent predictor for clinical outcome. METHODS: According to the presence of ACVS and AMVS on SWI, 124 patients with acute MCA stroke within 3 days were divided into several different groups...
June 21, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28647375/type-i-interferon-signalling-through-ifnar1-plays-a-deleterious-role-in-the-outcome-after-stroke
#6
Moses Zhang, Catherine E Downes, Connie H Y Wong, Kate M Brody, Pedro L Guio-Agulair, Jodee Gould, Robert Ates, Paul J Hertzog, Juliet M Taylor, Peter J Crack
Neuroinflammation contributes significantly to the pathophysiology of stroke. Here we test the hypothesis that the type I interferon receptor (IFNAR1) plays a critical role in neural injury after stroke by regulating the resultant pro-inflammatory environment. Wild-type and IFNAR1(-/-) primary murine neurons and glia were exposed to oxygen glucose deprivation (OGD) and cell viability was assessed. Transient cerebral ischemia/reperfusion injury was induced by mid-cerebral artery occlusion (MCAO) in wild-type and IFNAR1(-/-) and IFNAR2(-/-) mice in vivo, and infarct size, and molecular parameters measured...
June 21, 2017: Neurochemistry International
https://www.readbyqxmd.com/read/28646330/-imaging-of-vessels-supplying-the-brain
#7
REVIEW
S M Schellong, N Abolmaali, B Voigts, C Stelzner
Nowadays, several technically validated modalities are available for imaging both the extracranial and intracranial segments of arteries supplying blood to the brain. In the acute stroke setting, computed tomography (CT) angiography is of utmost importance because it provides the key diagnostic criteria indicative for the use of catheter-based recanalization techniques. Ultrasound imaging of extracranial arteries is most suitable for detecting an underlying stenosis of the internal carotid artery (ICA) in patients with stroke, transient ischemic attacks (TIA), retinal vessel occlusion and amaurosis fugax...
June 23, 2017: Der Internist
https://www.readbyqxmd.com/read/28645895/multiparity-improves-outcomes-after-cerebral-ischemia-in-female-mice-despite-features-of-increased-metabovascular-risk
#8
Rodney M Ritzel, Anita R Patel, Monica Spychala, Rajkumar Verma, Joshua Crapser, Edward C Koellhoffer, Anna Schrecengost, Evan R Jellison, Liang Zhu, Venugopal Reddy Venna, Louise D McCullough
Females show a varying degree of ischemic sensitivity throughout their lifespan, which is not fully explained by hormonal or genetic factors. Epidemiological data suggest that sex-specific life experiences such as pregnancy increase stroke risk. This work evaluated the role of parity on stroke outcome. Age-matched virgin (i.e., nulliparous) and multiparous mice were subjected to 60 min of reversible middle cerebral artery occlusion and evaluated for infarct volume, behavioral recovery, and inflammation. Using an established mating paradigm, fetal microchimeric cells present in maternal mice were also tracked after parturition and stroke...
June 23, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28645780/salvia-miltiorrhiza-bunge-danshen-extract-attenuates-permanent-cerebral-ischemia-through-inhibiting-platelet-activation-in-rats
#9
Yu-Xiang Fei, Si-Qi Wang, Li-Jian Yang, Yan-Ying Qiu, Yi-Ze Li, Wen-Yuan Liu, Tao Xi, Wei-Rong Fang, Yun-Man Li
ETHNOPHARMACOLOGICAL RELEVANCE: Danshen is a crude herbal drug isolated from dried roots of Salvia miltiorrhiza Bunge. This plant is widely used in oriental medicine for the treatment of cardiovascular and cerebrovascular diseases. The supercritical CO2 extract from Danshen (SCED) (57.85%, 5.67% and 4.55% for tanshinone IIA, tanshinone I and cryptotanshinone respectively) was studied in this article, whose potential molecular mechanism remains unclear, especially in anti-thrombosis. AIM OF THE STUDY: The present study was designed to observe the protective effect of SCED on ischemic stroke in rats and to explore the underlying anti-thrombosis mechanism...
June 20, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28645592/enlarged-encephalo-duro-myo-synangiosis-treatment-for-moyamoya-disease-in-young-children
#10
Wenjun Shen, Bin Xu, Hao Li, Xiaofeng Gao, Yujun Liao, Wei Shi, Rui Zhao, Yi Zhang
OBJECTIVE: To retrospectively evaluate the mid-term therapeutic effect of enlarged encephalo-duro-myo-synangiosis (EDMS) for moyamoya disease (MMD) in young children. METHODS: Seventy-seven children diagnosed with MMD by digital subtraction angiography (DSA) or magnetic resonance angiography (MRA) were treated between January 2011 and December 2014 in our center. Their clinical features, imaging and operative reports were analyzed. RESULTS: Four patients presented with intracerebral hemorrhage while 73 presented with ischemic symptoms...
June 20, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28645524/orientin-attenuates-cerebral-ischemia-reperfusion-injury-in-rat-model-through-the-aqp-4-and-tlr4-nf-%C3%AE%C2%BAb-tnf-%C3%AE-signaling-pathway
#11
Xiaoru Wang, Fang An, Shulin Wang, Zexin An, Shuhua Wang
BACKGROUND: Orientin has been reported to have extensive pharmaceutical effects of antioxidant, anti-inflammatory, antithrombosis, antiapoptosis, and so on. In the present study, we tried to investigate the protective effects of orientin on cerebral ischemia-reperfusion (I/R) injury and explored the possible mechanisms. METHODS: Middle cerebral artery occlusion rat model was established and then treated with low, middle, and high concentrations of orientin, respectively, with edaravone as a positive control...
June 20, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28645007/activation-of-the-pi3k-akt-pathway-promotes-neuroprotection-of-the-%C3%AE-opioid-receptor-agonist-against-cerebral-ischemia-reperfusion-injury-in-rat-models
#12
Mei-Rong Lv, Bin Li, Ming-Guang Wang, Fan-Guo Meng, Jian-Jun Yu, Feng Guo, Ye Li
The central objective was to identify the role of the PI3K-Akt activation pathway on the neuroprotection of δ-opioid receptor agonist (DADLE) against cerebral ischemia-reperfusion (I/R) injury in a rat model. Fifty-five male Sprague-Dawley (SD) rats were included to establish a middle cerebral artery occlusion (MCAO) model which were then divided into the sham, MCAO, LY294002 (MCAO+DADLE+LY294002 [inhibitor of PI3K-Akt pathway]), DADLE (MCAO+DADLE) and DMSO (MCAO+DADLE+DMSO [dimethyl sulphoxide]) groups. The cerebral infarction (CI) volume and nerve cell apoptosis was determined using TTC and TUNEL staining...
June 20, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28644968/serum-lipoprotein-associated-phospholipase-a2-predicts-the-formation-of-carotid-artery-plaque-and-its-vulnerability-in-anterior-circulation-cerebral-infarction
#13
Yuping Yang, Tao Xue, Juehua Zhu, Jiayi Xu, Xiaowei Hu, Penghao Wang, Tao Kong, Yan Yan, Lihui Yang, Shouru Xue
OBJECTIVE: Circulation inflammation markers such as high-sensitive C-reactive protein (hsCRP) and lipoprotein-associated phospholipase A2 (Lp-PLA2) are considered as predictors of cerebral and cardiac vascular diseases. However, the role of hsCRP and Lp-PLA2 in the anterior circulation cerebral infarction (ACI) is to be elaborated. PATIENTS AND METHODS: We included 100 patients with acute anterior circulation cerebral infarction (AaCI group) and 50 non-infarction subjects (control group)...
June 12, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28644261/is-intravenous-thrombolysis-safe-and-effective-in-central-retinal-artery-occlusion-a-critically-appraised-topic
#14
Oana M Dumitrascu, Joanne F Shen, Madhavi Kurli, Maria I Aguilar, Lisa A Marks, Bart M Demaerschalk, Dean M Wingerchuk, Cumara B O'Carroll
BACKGROUND: Central retinal artery occlusion (CRAO) is a neurological and ophthalmologic emergency associated with poor visual recovery. There is a dilemma regarding the appropriate treatment, as formal guidelines are lacking. Despite being considered an ocular equivalent of cerebral infarction, the time window of intravenous (IV) thrombolysis administration for maximum efficacy and safety in CRAO remains uncertain. OBJECTIVE: To critically assess the current evidence regarding the safety and effectiveness of IV thrombolysis in the treatment of patients with CRAO...
July 2017: Neurologist
https://www.readbyqxmd.com/read/28643544/varicella-zoster-meningovasculitis-in-a-multiple-sclerosis-patient-treated-with-natalizumab
#15
Patricia Mulero, Cristina Auger, Laura Parolin, Elena Fonseca, Manuel Requena, Jordi Rio, Mar Tintoré, Alex Rovira, Xavier Montalban
BACKGROUND: Natalizumab is associated with the occasional occurrence of progressive multifocal leukoencephalopathy (PML). While natalizumab-associated PML is well described in multiple sclerosis (MS) patients, herpes and other infections have rarely been reported. OBJECTIVE: To report a case of varicella-zoster (VZV) meningovasculitis in a MS patient treated with natalizumab. METHODS: Case report. RESULTS: A 48-year-old woman diagnosed with MS in treatment with natalizumab (Expanded Disability Status Scale (EDSS): 4...
June 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28643517/a-novel-strategy-for-comprehensive-profiling-and-identification-of-acidic-glycosphingolipids-using-ultra-high-performance-liquid-chromatography-coupled-with-quadrupole-time-of-flight-mass-spectrometry
#16
Ting Hu, Zhixin Jia, Jinlan Zhang
Acidic glycosphingolipids (AGSLs), which mainly consist of ganglioside and sulfatide moieties, are highly concentrated in the central nervous system. Comprehensive profiling of AGSLs has historically been challenging because of their high complexity and the lack of standards. In this paper, a novel strategy was developed to comprehensively profile AGSLs using ultra-high-performance liquid chromatography-quadrupole time of flight mass spectrometry (UPLC-Q-TOF-MS). Ganglioside isomers with different glycan chains such as GD1a/ GD1b were completely separated on a C18 column for the first time to our knowledge, facilitated by the addition of formic acid in the mobile phase...
June 23, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28642732/autonomic-function-impairment-and-brain-perfusion-deficit-in-parkinson-s-disease
#17
Wei-Che Lin, Pei-Chin Chen, Chih-Cheng Huang, Nai-Wen Tsai, Hsiu-Ling Chen, Hung-Chen Wang, Kun-Hsien Chou, Meng-Hsiang Chen, Yi-Wen Chen, Cheng-Hsien Lu
INTRODUCTION: Autonomic disorders have been recognized as important Parkinson's disease (PD) components. Some vulnerable structures are related to the central autonomic network and have also been linked to autonomic function alterations. The aims of the study are to evaluate the severity of the autonomic dysfunction and the cortical hypoperfusion using arterial spin labeling (ASL) MRI. And then, possible relationships of significant between-group differences in perfusion pattern to clinical variables and autonomic functions were examined to determine the pharmaceutical effects of dopaminergic treatment on cerebral blood flow (CBF) in patients with PD...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28642699/cerebral-blood-flow-and-amyloid-%C3%AE-interact-to-affect-memory-performance-in-cognitively-normal-older-adults
#18
Katherine J Bangen, Alexandra L Clark, Emily C Edmonds, Nicole D Evangelista, Madeleine L Werhane, Kelsey R Thomas, Lyzette E Locano, My Tran, Zvinka Z Zlatar, Daniel A Nation, Mark W Bondi, Lisa Delano-Wood
Cerebral blood flow (CBF) alterations and amyloid-β (Aβ) accumulation have been independently linked to cognitive deficits in older adults at risk for dementia. Less is known about how CBF and Aβ may interact to affect cognition in cognitively normal older adults. Therefore, we examined potential statistical interactions between CBF and Aβ status in regions typically affected in Alzheimer's disease (AD) within a sample of older adults from the Alzheimer's Disease Neuroimaging Initiative (ADNI) study. Sixty-two cognitively normal participants (mean age = 72 years) underwent neuroimaging and memory testing...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28642293/random-squat-stand-maneuvers-a-novel-approach-for-assessment-of-dynamic-cerebral-autoregulation
#19
Sam C Barnes, Naomi Ball, Victoria Joanna Haunton, Ronney B Panerai, Thompson G Robinson
BACKGROUND: Squat-stand maneuvers (SSM) have been used to assess dynamic cerebral autoregulation (dCA), but always at a fixed-frequency (FF). This study aimed to assess the use of random-frequency (RF) SSMs as a stimulus for measuring dCA, and to determine the reproducibility of FF and RFSSMs. METHOD: 29 healthy volunteers (19 male, mean age 23.0 [4.9] years) completed the study; 11 returned for a repeat visit (median 45 days). Heart rate, beat-to-beat blood pressure, middle cerebral artery (MCA) blood flow velocity, end-tidal CO2 and angle of the squat movement were measured...
June 22, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28642176/microsurgical-bypass-training-rat-model-part-2-anastomosis-configurations
#20
Ali Tayebi Meybodi, Michael T Lawton, Sonia Yousef, Pooneh Mokhtari, Sirin Gandhi, Arnau Benet
BACKGROUND: Mastery of microsurgical anastomosis is key to achieving good outcomes in cerebrovascular bypass procedures. Animal models (especially rodents) provide an optimal pre-clinical bypass training platform. However, the existing models for practicing different anastomosis configurations have several limitations. OBJECTIVE: We sought to optimize the use of the rat's abdominal aorta and common iliac arteries (CIA) for practicing the 3 main anastomosis configurations commonly used in cerebrovascular surgery...
June 19, 2017: World Neurosurgery
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