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https://www.readbyqxmd.com/read/28934920/agreed-definitions-and-a-shared-vision-for-new-standards-in-stroke-recovery-research-the-stroke-recovery-and-rehabilitation-roundtable-taskforce
#1
Julie Bernhardt, Kathryn S Hayward, Gert Kwakkel, Nick S Ward, Steven L Wolf, Karen Borschmann, John W Krakauer, Lara A Boyd, S Thomas Carmichael, Dale Corbett, Steven C Cramer
The first Stroke Recovery and Rehabilitation Roundtable established a game changing set of new standards for stroke recovery research. Common language and definitions were required to develop an agreed framework spanning the four working groups: translation of basic science, biomarkers of stroke recovery, measurement in clinical trials and intervention development and reporting. This paper outlines the working definitions established by our group and an agreed vision for accelerating progress in stroke recovery research...
September 2017: Neurorehabilitation and Neural Repair
https://www.readbyqxmd.com/read/28934918/standardized-measurement-of-sensorimotor-recovery-in-stroke-trials-consensus-based-core-recommendations-from-the-stroke-recovery-and-rehabilitation-roundtable
#2
Gert Kwakkel, Natasha A Lannin, Karen Borschmann, Coralie English, Myzoon Ali, Leonid Churilov, Gustavo Saposnik, Carolee Winstein, Erwin E H van Wegen, Steven L Wolf, John W Krakauer, Julie Bernhardt
Finding, testing and demonstrating efficacy of new treatments for stroke recovery is a multifaceted challenge. We believe that to advance the field, neurorehabilitation trials need a conceptually rigorous starting framework. An essential first step is to agree on definitions of sensorimotor recovery and on measures consistent with these definitions. Such standardization would allow pooling of participant data across studies and institutions aiding meta-analyses of completed trials, more detailed exploration of recovery profiles of our patients and the generation of new hypotheses...
September 2017: Neurorehabilitation and Neural Repair
https://www.readbyqxmd.com/read/28933425/carnosine-suppresses-oxygen-glucose-deprivation-recovery-induced-proliferation-and-migration-of-reactive-astrocytes-of-rats-in-vitro
#3
Li Ou-Yang, Yuan Liu, Bing-Yu Wang, Pei Cao, Jing-Jing Zhang, Yu-Yan Huang, Yao Shen, Jian-Xin Lyu
Glial scar formation resulted from excessive astrogliosis limits axonal regeneration and impairs recovery of function, thus an intervention to ameliorate excessive astrogliosis is crucial for the recovery of neurological function after cerebral ischemia. In this study we investigated the effects of carnosine, an endogenous water-soluble dipeptide (β-alanyl-L-histidine), on astrogliosis of cells exposed to oxygen-glucose deprivation/recovery (OGD/R) in vitro. Primary cultured rat astrocytes exhibited a significant increase in proliferation at 24 h recovery after OGD for 2 h...
September 21, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/28932766/poststroke-trajectories-the-process-of-recovery-over-the-longer-term-following-stroke
#4
Rebecca J Hawkins, Adam Jowett, Mary Godfrey, Kirste Mellish, John Young, Amanda Farrin, Ivana Holloway, Jenny Hewison, Anne Forster
We adopted a grounded theory approach to explore the process of recovery experienced by stroke survivors over the longer term who were living in the community in the United Kingdom, and the interacting factors that are understood to have shaped their recovery trajectories. We used a combination of qualitative methods. From the accounts of 22 purposively sampled stroke survivors, four different recovery trajectories were evident: (a) meaningful recovery, (b) cycles of recovery and decline, (c) ongoing disruption, (d) gradual, ongoing decline...
January 2017: Global Qualitative Nursing Research
https://www.readbyqxmd.com/read/28931983/postactivation-depression-of-soleus-h-reflex-increase-with-recovery-of-lower-extremities-motor-functions-in-patients-with-subacute-stroke
#5
Yu Kawaishi, Naoki Matsumoto, Toshiya Nishiwaki, Tatsuro Hirano
[Purpose] The soleus H-reflex is depressed at stimulation rates greater than 0.1 Hz. This reflex depression is referred to as postactivation depression. Postactivation depression reflects the reduced efficacy of the Ia-motoneurons synapses when they are evaluated after a previous activation. The aim of this study was to determine whether the recovery of motor functions in the lower extremities affects the PAD of the soleus H-reflex in patients with subacute stroke undergoing rehabilitation. [Subjects and Methods] Eight patients with subacute stroke patients were recruited...
September 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28931620/effects-of-physical-activity-on-poststroke-cognitive-function-a-meta-analysis-of-randomized-controlled-trials
#6
Lauren E Oberlin, Aashna M Waiwood, Toby B Cumming, Anna L Marsland, Julie Bernhardt, Kirk I Erickson
BACKGROUND AND PURPOSE: Despite the social, health, and economic burdens associated with cognitive impairment poststroke, there is considerable uncertainty about the types of interventions that might preserve or restore cognitive abilities. The objective of this systematic review and meta-analysis was to evaluate the effects of physical activity (PA) training on cognitive function poststroke and identify intervention and sample characteristics that may moderate treatment effects. METHODS: Randomized controlled trials examining the association between structured PA training and cognitive performance poststroke were identified using electronic databases EMBASE and MEDLINE...
September 20, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28931568/a-cross-talk-between-neuronal-urokinase-type-plasminogen-activator-upa-and-astrocytic-upa-receptor-upar-promotes-astrocytic-activation-and-synaptic-recovery-in-the-ischemic-brain
#7
Ariel Diaz, Paola Merino, Luis Guillermo Manrique, Juan Pablo Ospina, Lihong Cheng, Fang Wu, Valerie Jeanneret, Manuel Yepes
Urokinase-type plasminogen activator (uPA) is a serine proteinase that upon binding to its receptor (uPAR) catalyzes the conversion of plasminogen into plasmin on the cell surface. Our previous studies indicate that uPA and uPAR expression increase in the ischemic brain during the recovery phase from an acute ischemic injury, and that uPA binding to uPAR promotes neurological recovery following an acute ischemic stroke. Here we used male mice genetically deficient on either uPA (uPA(-/-)), or uPAR (uPAR(-/-)), or with a 4 amino acids substitution into the growth factor domain of uPA that abrogates its binding to uPAR (Plat(GFDhu/GFDhu)) to investigate the mechanism whereby uPA promotes neurorepair in the ischemic brain...
September 20, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28930819/recovery-of-an-injured-corticobulbar-tract-in-a-patient-with-stroke-a-case-report
#8
Sungho Jang, Jonghoon Kim, Yousung Seo, Soyoung Kwak
RATIONALE: The corticobulbar tract (CBT) is known to be involved in the motor function of the non-oculomotor cranial nuclei and controls the muscles of the face, head, and neck. Several studies have reported injury of the CBT in patients with brain injury, however, little is known about recovery of the injured CBT. PATIENT CONCERNS: A 59-year-old right-handed male underwent decompressive craniectomy for management of brain swelling and intracerebral hemorrhage following an infarction in the left middle cerebral artery territory...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28930231/a-population-based-cohort-study-on-the-ability-of-acupuncture-to-reduce-post-stroke-depression
#9
Shuo-Ping Tseng, Yu-Ching Hsu, Ching-Ju Chiu, Shang-Te Wu
Objective: Post-stroke depression (PSD) is common and has a negative impact on recovery. Although many stroke patients in Taiwan have used acupuncture as a supplementary treatment for reducing stroke comorbidities, little research has been done on the use of acupuncture to prevent PSD. Accordingly, our goal is to investigate whether using acupuncture after a stroke can reduce the risk of PSD. Method: This population-based cohort study examined medical claims data from a random sample of 1 million insured people registered in Taiwan...
March 15, 2017: Medicines (Basel, Switzerland)
https://www.readbyqxmd.com/read/28929902/neurochemical-changes-underpinning-the-development-of-adjunct-therapies-in-recovery-after-stroke-a-role-for-gaba
#10
Ainslie Johnstone, Jacob M Levenstein, Emily L Hinson, Charlotte J Stagg
Stroke is a leading cause of long-term disability, with around three-quarters of stroke survivors experiencing motor problems. Intensive physiotherapy is currently the most effective treatment for post-stroke motor deficits, but much recent research has been targeted at increasing the effects of the intervention by pairing it with a wide variety of adjunct therapies, all of which aim to increase cortical plasticity, and thereby hope to maximize functional outcome. Here, we review the literature describing neurochemical changes underlying plasticity induction following stroke...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28928708/neural-patterns-of-reorganization-after-intensive-robot-assisted-virtual-reality-therapy-and-repetitive-task-practice-in-patients-with-chronic-stroke
#11
Soha Saleh, Gerard Fluet, Qinyin Qiu, Alma Merians, Sergei V Adamovich, Eugene Tunik
Several approaches to rehabilitation of the hand following a stroke have emerged over the last two decades. These treatments, including repetitive task practice (RTP), robotically assisted rehabilitation and virtual rehabilitation activities, produce improvements in hand function but have yet to reinstate function to pre-stroke levels-which likely depends on developing the therapies to impact cortical reorganization in a manner that favors or supports recovery. Understanding cortical reorganization that underlies the above interventions is therefore critical to inform how such therapies can be utilized and improved and is the focus of the current investigation...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28928649/changes-in-electroencephalography-complexity-using-a-brain-computer-interface-motor-observation-training-in-chronic-stroke-patients-a-fuzzy-approximate-entropy-analysis
#12
Rui Sun, Wan-Wa Wong, Jing Wang, Raymond Kai-Yu Tong
Entropy-based algorithms have been suggested as robust estimators of electroencephalography (EEG) predictability or regularity. This study aimed to examine possible disturbances in EEG complexity as a means to elucidate the pathophysiological mechanisms in chronic stroke, before and after a brain computer interface (BCI)-motor observation intervention. Eleven chronic stroke subjects and nine unimpaired subjects were recruited to examine the differences in their EEG complexity. The BCI-motor observation intervention was designed to promote functional recovery of the hand in stroke subjects...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28923278/can-adjunctive-therapies-augment-the-efficacy-of-endovascular-thrombolysis-a-potential-role-for-activated-protein-c
#13
REVIEW
Arun Paul Amar, Abhay P Sagare, Zhen Zhao, Yaoming Wang, Amy R Nelson, John H Griffin, Berislav V Zlokovic
In the management of acute ischemic stroke, vessel recanalization correlates with functional status, mortality, cost, and other outcome measures. Thrombolysis with intravenous tissue plasminogen activator has many limitations that restrict its applicability, but recent advances in the development of mechanical thrombectomy devices as well as improved systems of stroke care have resulted in greater likelihood of vessel revascularization. Nonetheless, there remains substantial discrepancy between rates of recanalization and rates of favorable outcome...
September 15, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28922367/perihematomal-diffusion-restriction-as-a-common-finding-in-large-intracerebral-hemorrhages-in-the-hyperacute-phase
#14
Tanja Schneider, David Frieling, Julian Schroeder, Jan Regelsberger, Gerhard Schoen, Jens Fiehler, Susanne Gellißen
PURPOSE: There is growing evidence that a perihematomal area of restricted diffusion (PDR) exists in intraparenchymal hemorrhages (IPH) within 1 week of symptom onset (SO). Here, we study characteristics and the clinical impact of the PDR in patients with hyperacute (≤ 6 hours from SO) IPH by means of apparent diffusion coefficient (ADC). METHODS: This monocentric, retrospective study includes 83 patients with first-ever primary IPH from 09/2002-10/2015. 3D volumetric segmentation was performed for the IPH, PDR, and perihematomal edema (PHE) on fluid-attenuated inversion recovery, T2*/susceptibility weighted images, and ADC images...
2017: PloS One
https://www.readbyqxmd.com/read/28922313/lateral-perturbation-induced-stepping-strategies-and-predictors-in-persons-poststroke
#15
Vicki L Gray, Chieh-Ling Yang, Sandy McCombe Waller, Mark W Rogers
BACKGROUND AND PURPOSE: Falls commonly occur as weight is transferred laterally, and impaired reactive stepping responses are associated with falls after stroke. The purpose of this study was to examine differences in and the determinants of mediolateral (M-L) protective stepping strategies when pulled off balance toward the paretic and nonparetic sides. METHODS: Eighteen individuals more than 6 months poststroke were pulled in the M-L direction by a lateral waist-pull perturbation system...
October 2017: Journal of Neurologic Physical Therapy: JNPT
https://www.readbyqxmd.com/read/28922311/motor-imagery-training-after-stroke-a-systematic-review-and-meta-analysis-of-randomized-controlled-trials
#16
Zaqueline Fernandes Guerra, Alessandra L G Lucchetti, Giancarlo Lucchetti
BACKGROUND AND PURPOSE: A number of studies have suggested that imagery training (motor imagery [MI]) has value for improving motor function in persons with neurologic conditions. We performed a systematic review and meta-analysis to assess the available literature related to efficacy of MI in the recovery of individuals after stroke. METHODS: We searched the following databases: PubMed, Web of Knowledge, Scopus, Cochrane, and PEDro. Two reviewers independently selected clinical trials that investigated the effect of MI on outcomes commonly investigated in studies of stroke recovery...
October 2017: Journal of Neurologic Physical Therapy: JNPT
https://www.readbyqxmd.com/read/28920888/prediction-of-motor-recovery-after-stroke-advances-in-biomarkers
#17
REVIEW
Cathy M Stinear
Stroke remains a leading cause of adult disability, and the recovery of motor function after stroke is crucial for the patient to regain independence. However, making accurate predictions of a patient's motor recovery and outcome is difficult when based on clinical assessment alone. Clinical assessment of motor impairment within a few days of stroke can help to predict subsequent recovery, while neurophysiological and neuroimaging biomarkers of corticomotor structure and function can help to predict both motor recovery and motor outcome after stroke...
October 2017: Lancet Neurology
https://www.readbyqxmd.com/read/28919535/altered-gray-matter-volume-cerebral-blood-flow-and-functional-connectivity-in-chronic-stroke-patients
#18
Peifang Miao, Caihong Wang, Peng Li, Sen Wei, Chunshan Deng, Dandan Zheng, Jingliang Cheng
It is entangled connections and intensive functional interactions between cortex and subcortical structures that enable our brain to perform delicate movement, and poses plasticity to recover from stroke. However, it is still unclear how cortical structures and functions change in well-recovered patients from subcortical infarctions in motor pathway. In order to reveal neuroplasticity underlying well-recovered stroke patients, both structural (gray matter volume, GMV) and functional reorganizations (cerebral blood flow, CBF and resting-state functional connectivity, rsFC) were investigated by using multi-modal MRI...
September 14, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28917705/long-term-retention-of-ecm-hydrogel-after-implantation-into-a-sub-acute-stroke-cavity-reduces-lesion-volume
#19
Harmanvir Ghuman, Madeline Gerwig, Francesca J Nicholls, Jessie Liu, Julia Donnelly, Stephen F Badylak, Michel Modo
Salvaging or functional replacement of damaged tissue caused by stroke in the brain remains a major therapeutic challenge. In situ gelation and retention of a hydrogel bioscaffold composed of 8 mg/mL extracellular matrix (ECM) can induce a robust invasion of cells within 24 hours and potentially promote a structural remodeling to replace lost tissue. Herein, we demonstrate a long-term retention of ECM hydrogel within the lesion cavity. A decrease of approximately 32% of ECM volume is observed over 12 weeks...
September 13, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28914232/combined-rtms-and-virtual-reality-brain-computer-interface-training-for-motor-recovery-after-stroke
#20
Nessa N Johnson, James Carey, Bradley Edelman, Alexander Doud, Andrew Grande, Kamakshi Lakshminarayan, Bin He
OBJECTIVE: Combining repetitive transcranial magnetic stimulation (rTMS) with brain-computer interface (BCI) training can address motor impairment after stroke by down-regulating exaggerated inhibition from the contralesional hemisphere and encouraging ipsilesional activation. The objective was to evaluate the efficacy of combined rTMS+BCI, compared to sham rTMS+BCI, on motor recovery after stroke in subjects with lasting motor paresis. APPROACH: Three stroke subjects approximately one year post-stroke participated in three weeks of combined rTMS (real or sham) and BCI, followed by three weeks of BCI alone...
September 15, 2017: Journal of Neural Engineering
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