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Total 136 results found since Jan 2013.

Upper Limb Recovery After Stroke Is Associated With Ipsilesional Primary Motor Cortical Activity: A Meta-Analysis Clinical Sciences
Conclusions— Activity in ipsilesional primary motor and medial-premotor cortices in chronic stroke signals good motor recovery, whereas cerebellar vermis activity signals poor recovery. Functional MRI may be useful in identifying recovery biomarkers.
Source: Stroke - March 24, 2014 Category: Neurology Authors: Favre, I., Zeffiro, T. A., Detante, O., Krainik, A., Hommel, M., Jaillard, A. Tags: Behavioral Changes and Stroke, Cerebral Lacunes, Computerized tomography and Magnetic Resonance Imaging, PET and SPECT, Rehabilitation, Stroke Clinical Sciences Source Type: research

Influence of Amyloid-{beta} on Cognitive Decline After Stroke/Transient Ischemic Attack: Three-Year Longitudinal Study Clinical Sciences
Conclusions— Compared with subjects without Alzheimer’s disease–like Aβ deposition, those with Aβ deposition experienced a more severe and rapid cognitive decline over 3 years after stroke/transient ischemic attack. Aβ was associated with changes in multiple cognitive domains.
Source: Stroke - October 26, 2015 Category: Neurology Authors: Liu, W., Wong, A., Au, L., Yang, J., Wang, Z., Leung, E. Y. L., Chen, S., Ho, C. L., Mok, V. C. T. Tags: Behavioral Changes and Stroke, PET and SPECT Clinical Sciences Source Type: research

Design of Randomized, double‐blind, Evaluation in secondary Stroke Prevention comparing the EfficaCy and safety of the oral Thrombin inhibitor dabigatran etexilate vs. acetylsalicylic acid in patients with Embolic Stroke of Undetermined Source (RE‐SPECT ESUS)
DiscussionAcetylsalicylic acid is the most common antithrombotic given to patients with embolic strokes of undetermined source to reduce recurrence risk. This trial will determine whether anticoagulation with dabigatran is more effective than acetylsalicylic acid, and acceptably safe.
Source: International Journal of Stroke - September 30, 2015 Category: Neurology Authors: Hans‐Christoph Diener, J. Donald Easton, Christopher B. Granger, Lisa Cronin, Christine Duffy, Daniel Cotton, Martina Brueckmann, Ralph L. Sacco, Tags: Protocol Source Type: research

Design of Randomized, double ‐blind, Evaluation in secondary Stroke Prevention comparing the EfficaCy and safety of the oral Thrombin inhibitor dabigatran etexilate vs. acetylsalicylic acid in patients with Embolic Stroke of Undetermined Source (RE‐SPECT ESUS)
DiscussionAcetylsalicylic acid is the most common antithrombotic given to patients with embolic strokes of undetermined source to reduce recurrence risk. This trial will determine whether anticoagulation with dabigatran is more effective than acetylsalicylic acid, and acceptably safe.
Source: International Journal of Stroke - September 29, 2015 Category: Neurology Authors: Hans ‐Christoph Diener, J. Donald Easton, Christopher B. Granger, Lisa Cronin, Christine Duffy, Daniel Cotton, Martina Brueckmann, Ralph L. Sacco, Tags: Protocol Source Type: research

Integrin {alpha}4 Overexpression on Rat Mesenchymal Stem Cells Enhances Transmigration and Reduces Cerebral Embolism After Intracarotid Inȷection Brief Report
Conclusions—ITGA4 overexpression on MSCs enhances transendothelial migration in vitro, but not in vivo, although it improves safety after intracarotid transplantation into stroke rats.
Source: Stroke - September 25, 2017 Category: Neurology Authors: Li–li Cui, Franziska Nitzsche, Evgeny Pryazhnikov, Marina Tibeykina, Laura Tolppanen, Jussi Rytkonen, Tuulia Huhtala, Jing–wei Mu, Leonard Khiroug, Johannes Boltze, Jukka Jolkkonen Tags: Cell Therapy, Translational Studies, Ischemic Stroke Brief Reports Source Type: research

Effects of Noninvasive Brain Stimulation on Language Networks and Recovery in Early Poststroke Aphasia Clinical Sciences
Conclusions— Ten sessions of inhibitory rTMS over the right posterior inferior frontal gyrus, in combination with speech and language therapy, significantly improve language recovery in subacute ischemic stroke and favor recruitment of left-hemispheric language networks.
Source: Stroke - July 22, 2013 Category: Neurology Authors: Thiel, A., Hartmann, A., Rubi-Fessen, I., Anglade, C., Kracht, L., Weiduschat, N., Kessler, J., Rommel, T., Heiss, W.-D. Tags: Behavioral Changes and Stroke, PET and SPECT, Rehabilitation, Stroke, Other Stroke Treatment - Medical Clinical Sciences Source Type: research

Effects of Low-Frequency Repetitive Transcranial Magnetic Stimulation Combined with Intensive Speech Therapy on Cerebral Blood Flow in Post-Stroke Aphasia
Abstract We provided an intervention to chronic post-stroke aphasic patients using low-frequency repetitive transcranial magnetic stimulation (LF-rTMS) guided by a functional magnetic resonance imaging (fMRI) evaluation of language laterality, combined with intensive speech therapy (ST). We performed a single photon emission-computed tomography (SPECT) scan pre- and post-intervention and investigated the relationship between cerebral blood flow (CBF) and language function. Fifty right-handed chronic post-stroke aphasic patients were enrolled in the study. During their 11-day hospital admission, the patients receiv...
Source: Translational Stroke Research - August 7, 2015 Category: Neurology Source Type: research

Crossed Cerebellar Diaschisis Detected by Arterial Spin-Labeled Perfusion Magnetic Resonance Imaging in Subacute Ischemic Stroke
Conclusions: With advantages in easy acquisition and no radiation, ASL-MRI seems to be an ideal tool for the detection and follow-up of CCD.
Source: Journal of Stroke and Cerebrovascular Diseases - September 1, 2014 Category: Neurology Authors: Shuai Chen, Min Guan, Hao-Jun Lian, Li-Jia Ma, Jun-Kui Shang, Shuang He, Ming-Ming Ma, Mi-Lan Zhang, Zi-Yuan Li, Mei-Yun Wang, Da-Peng Shi, Jie-Wen Zhang Tags: Original Articles Source Type: research

TSPO imaging in stroke: from animal models to human subjects
Abstract Stroke is a major health problem in developed countries and neuroinflammation has emerged over the last 2 decades as major contributor to the pathophysiological processes of brain damage following stroke. PET imaging of the translocator 18 kDa protein (TSPO) provides a unique non-invasive point of access to neuroinflammatory processes and more specifically microglial and astrocytic reaction after stroke in both animal models and patients. Here, we are reviewing both the experimental and clinical literature about in vivo TSPO PET and SPECT imaging in stroke. The studies in animal models of stroke revi...
Source: Clinical and Translational Imaging - September 30, 2015 Category: Radiology Source Type: research

Obstructive carotid and/or intracranial artery disease rarely affects the incidence of haemodynamic ischaemic stroke during cardiac surgery: a study on brain perfusion single-photon emission computed tomography with acetazolamide ADULT CARDIAC
CONCLUSIONS It is unusual for CIAD to affect the incidence of haemodynamic ischaemic stroke during cardiac surgery. Brain perfusion SPECT with acetazolamide is effective for narrowing down patients at high risk of ischaemic stroke during cardiac surgery. Meanwhile, the application of brain perfusion single-photon emission tomography should be confined only to patients with obstructive CIAD because it is an expensive examination tool.
Source: European Journal of Cardio-Thoracic Surgery - October 16, 2015 Category: Cardiovascular & Thoracic Surgery Authors: Imasaka, K.-i., Yasaka, M., Tayama, E., Tomita, Y. Tags: Cardiac - other ADULT CARDIAC Source Type: research

Ischemic Conditioning Is Safe and Effective for Octo- and Nonagenarians in Stroke Prevention and Treatment
The objective of this study was to evaluate the safety and effectiveness of BAIPC in reducing stroke recurrence in octo- and nonagenarian patients with SIAS. Fifty-eight patients with SIAS were enrolled in this randomized controlled prospective study for 180 consecutive days. All patients enrolled in the study received standard medical management. Patients in the BAIPC group (n = 30) underwent 5 cycles consisting of bilateral arm ischemia followed by reperfusion for 5 min each twice daily. Those in the control group (n = 28) underwent sham-BAIPC twice daily. Blood pressure, heart rate, local skin status, plasma m...
Source: Neurotherapeutics - May 9, 2015 Category: Neurology Source Type: research

PET Detection of Cerebral Necrosis Using an Infarct-Avid Agent 2-Deoxy-2- 18 FFluoro- d -Glucaric Acid (FGA) in a Mouse Model of the Brain Stroke
ConclusionsAccumulation of FGA correlated well with the perfusion defect and inflammatory injury. As a PET agent, FGA has potential to image infarcted core in the brain stroke injury with high sensitivity, resolution, and specificity.
Source: Molecular Imaging and Biology - June 15, 2020 Category: Molecular Biology Source Type: research

Regional cerebral blood flow following single‐dose and continuous‐dose tadalafil after stroke
ConclusionTadalafil administration after cerebral stroke may be associated with diminished blood flow to areas adjacent to the stroke. The alterations in perfusion suggest a need for caution in prescribing tadalafil to patients with a history of stroke, especially with continuous administration that may impose constant stress on the cerebral circulation.
Source: Acta Neurologica Scandinavica - September 10, 2014 Category: Neurology Authors: M. Lorberboym, E. Makhline, Y. Lampl Tags: Original Article Source Type: research

Propensity of Withania somnifera to Attenuate Behavioural, Biochemical, and Histological Alterations in Experimental Model of Stroke.
Abstract The present study was designed to evaluate the beneficial effects of Withania somnifera (WS) pre-supplementation on middle cerebral artery occlusion (MCAO) model of ischemic stroke. Ischemic stroke was induced in the rats by inserting intraluminal suture for 90 min, followed by reperfusion injury for 24 h. The animals were assessed for locomotor functions (by neurological deficit scores, narrow beam walk and rotarod test), cognitive and anxiety-like behavioural functions (by morris water maze and elevated plus maze test). MCAO animals showed significant impairment in locomotor and cognitive functions. N...
Source: Cellular and Molecular Neurobiology - December 30, 2015 Category: Cytology Authors: Sood A, Kumar A, Dhawan DK, Sandhir R Tags: Cell Mol Neurobiol Source Type: research

Detection of Crossed Cerebellar Diaschisis by Intravoxel Incoherent Motion MR Imaging in Subacute Ischemic Stroke.
Abstract Intravoxel incoherent motion has received extensive attention in brain studies for its potential as a non-invasive magnetic resonance perfusion method. However, studies on intravoxel incoherent motion imaging and crossed cerebellar diaschisis detection are relatively scarce. The aim of our study was to evaluate the feasibility of using intravoxel incoherent motion imaging in crossed cerebellar diaschisis diagnosis in subacute ischemic stroke patients by comparing results from intravoxel incoherent motion imaging, single-photon emission computed tomography, and arterial spin-labeling perfusion methods. In ...
Source: Cell Transplantation - June 13, 2019 Category: Cytology Authors: Wang J, Suo S, Zu J, Zhu W, Pan L, Song S, Li Y, Li L, Chen Z, Xu J Tags: Cell Transplant Source Type: research