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Neural Plasticity

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https://www.readbyqxmd.com/read/29780410/quantification-of-upper-limb-motor-recovery-and-eeg-power-changes-after-robot-assisted-bilateral-arm-training-in-chronic-stroke-patients-a-prospective-pilot-study
#1
Marialuisa Gandolfi, Emanuela Formaggio, Christian Geroin, Silvia Francesca Storti, Ilaria Boscolo Galazzo, Marta Bortolami, Leopold Saltuari, Alessandro Picelli, Andreas Waldner, Paolo Manganotti, Nicola Smania
Background: Bilateral arm training (BAT) has shown promise in expediting progress toward upper limb recovery in chronic stroke patients, but its neural correlates are poorly understood. Objective: To evaluate changes in upper limb function and EEG power after a robot-assisted BAT in chronic stroke patients. Methods: In a within-subject design, seven right-handed chronic stroke patients with upper limb paresis received 21 sessions (3 days/week) of the robot-assisted BAT...
2018: Neural Plasticity
https://www.readbyqxmd.com/read/29780409/beneficial-effects-of-resveratrol-mediated-inhibition-of-the-mtor-pathway-in-spinal-cord-injury
#2
REVIEW
Jingying Zhou, Xue Huo, Benson O A Botchway, Luyao Xu, Xiaofang Meng, Songou Zhang, Xuehong Liu
Spinal cord injury (SCI) causes a high rate of morbidity and disability. The clinical features of SCI are divided into acute, subacute, and chronic phases according to its pathophysiological events. The mammalian target of rapamycin (mTOR) signaling pathway plays an important role in cell death and inflammation in the acute phase and neuroregeneration in the subacute/chronic phases at different times. Resveratrol has the potential of regulating cell growth, proliferation, metabolism, and angiogenesis through the mTOR signaling pathway...
2018: Neural Plasticity
https://www.readbyqxmd.com/read/29770147/koumine-attenuates-neuroglia-activation-and-inflammatory-response-to-neuropathic-pain
#3
Gui-Lin Jin, Sai-Di He, Shao-Mei Lin, Li-Mian Hong, Wan-Qing Chen, Ying Xu, Jian Yang, Su-Ping Li, Chang-Xi Yu
Despite decades of studies, the currently available drugs largely fail to control neuropathic pain. Koumine-an alkaloidal constituent derived from the medicinal plant Gelsemium elegans Benth.-has been shown to possess analgesic and anti-inflammatory properties; however, the underlying mechanisms remain unclear. In this study, we aimed to investigate the analgesic and anti-inflammatory effects and the possible underlying mechanisms of koumine. The analgesic and anti-inflammatory effects of koumine were explored by using chronic constriction injury of the sciatic nerve (CCI) neuropathic pain model in vivo and LPS-induced injury in microglia BV2 cells in vitro ...
2018: Neural Plasticity
https://www.readbyqxmd.com/read/29770146/effects-of-20-hz-repetitive-transcranial-magnetic-stimulation-on-disorders-of-consciousness-a-resting-state-electroencephalography-study
#4
Fangping He, Min Wu, Fanxia Meng, Yangfan Hu, Jian Gao, Zhongqin Chen, Wangxiao Bao, Kehong Liu, Benyan Luo, Gang Pan
Repetitive transcranial magnetic stimulation (rTMS) has been proposed as an experimental approach for the treatment of disorders of consciousness (DOC). To date, there has been little research into the use of rTMS in DOC and the therapeutic effects have been variously documented. This study aimed to examine the effects of 20 Hz rTMS on the electroencephalography (EEG) reactivity and clinical response in patients with DOC and to explore the neuromodulatory effects of high-frequency rTMS. In this randomized, sham-controlled, crossover study, real or sham 20 Hz rTMS was applied to the left primary motor cortex (M1) of patients with DOC for 5 consecutive days...
2018: Neural Plasticity
https://www.readbyqxmd.com/read/29765403/effect-of-maternal-administration-of-edible-bird-s-nest-on-the-learning-and-memory-abilities-of-suckling-offspring-in-mice
#5
Yong Xie, Hongliang Zeng, Zhiji Huang, Hui Xu, Qunyan Fan, Yi Zhang, Baodong Zheng
Although human brains continue developing throughout the underage developmental stages, the infancy period is considered the most important one for the whole life. It has been reported that sialic acid from edible bird's nest (EBN) can facilitate the development of brain and intelligence. In this study, by oral administration of EBN to female mice during the pregnancy or lactation period, the effects of EBN on the levels of sialic acid in mouse milk were determined using high-performance liquid chromatography (HPLC)...
2018: Neural Plasticity
https://www.readbyqxmd.com/read/29765402/tlr4-nf-%C3%AE%C2%BA-b-signal-involved-in-depressive-like-behaviors-and-cytokine-expression-of-frontal-cortex-and-hippocampus-in-stressed-c57bl-6-and-ob-ob-mice
#6
Yihe Wang, Jingjing Xu, Yuan Liu, Ziyang Li, Xiaohong Li
Studies found that elevated levels of cytokines such as interleukin- (IL-) 1 β , IL-6, and tumor necrosis factor- α (TNF- α ) are closely associated with the pathogenesis of depression. Obesity providing a low-grade inflammation state was proposed to be implicated in susceptibility to depression in obesity. However, the alterations of cytokines and the TLR4-NF- κ B signal in the brain of normal-weight and obese mice under stress have not been fully elucidated. This study used chronic unpredictable mild stress (CUMS) to induce a depressive-like behavior in an animal model and examine depressive-like behaviors, memory changes, and serum corticosterone levels, as well as the expressions of cytokines and NF- κ B in the frontal cortex and hippocampus...
2018: Neural Plasticity
https://www.readbyqxmd.com/read/29765401/mixed-effects-modeling-of-neurofeedback-self-regulation-performance-moderators-for-learning-in-children-with-adhd
#7
Agnieszka Zuberer, Franziska Minder, Daniel Brandeis, Renate Drechsler
Introduction: Neurofeedback (NF) has gained increasing popularity as a training method for children and adults with attention deficit hyperactivity disorder (ADHD). However, it is unclear to what extent children learn to regulate their brain activity and in what way NF learning may be affected by subject- and treatment-related factors. Methods: In total, 48 subjects with ADHD (age 8.5-16.5 years; 16 subjects on methylphenidate (MPH)) underwent 15 double training sessions of NF in either a clinical or a school setting...
2018: Neural Plasticity
https://www.readbyqxmd.com/read/29755516/synaptic-paths-to-neurodegeneration-the-emerging-role-of-tdp-43-and-fus-in-synaptic-functions
#8
REVIEW
Shuo-Chien Ling
TAR DNA-binding protein-43 KDa (TDP-43) and fused in sarcoma (FUS) as the defining pathological hallmarks for amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD), coupled with ALS-FTD-causing mutations in both genes, indicate that their dysfunctions damage the motor system and cognition. On the molecular level, TDP-43 and FUS participate in the biogenesis and metabolism of coding and noncoding RNAs as well as in the transport and translation of mRNAs as part of cytoplasmic mRNA-ribonucleoprotein (mRNP) granules...
2018: Neural Plasticity
https://www.readbyqxmd.com/read/29755515/anticorrelations-between-active-brain-regions-an-agent-based-model-simulation-study
#9
Fabrizio Parente, Alfredo Colosimo
Anticorrelations among brain areas observed in fMRI acquisitions under resting state are not endowed with a well-defined set of characters. Some evidence points to a possible physiological role for them, and simulation models showed that it is appropriate to explore such an issue. A large-scale brain representation was considered, implementing an agent-based brain-inspired model (ABBM) incorporating the SER (susceptible-excited-refractory) cyclic mechanism of state change. The experimental data used for validation included 30 selected functional images of healthy controls from the 1000 Functional Connectomes Classic collection...
2018: Neural Plasticity
https://www.readbyqxmd.com/read/29755514/motor-improvement-of-skilled-forelimb-use-induced-by-treatment-with-growth-hormone-and-rehabilitation-is-dependent-on-the-onset-of-the-treatment-after-cortical-ablation
#10
Margarita Heredia, Jesús Palomero, Antonio de la Fuente, José María Criado, Javier Yajeya, Jesús Devesa, Pablo Devesa, José Luis Vicente-Villardón, Adelaida S Riolobos
We previously demonstrated that the administration of GH immediately after severe motor cortex injury, in rats, followed by rehabilitation, improved the functionality of the affected limb and reexpressed nestin in the contralateral motor cortex. Here, we analyze whether these GH effects depend on a time window after the injury and on the reexpression of nestin and actin. Injured animals were treated with GH (0.15 mg/kg/day) or vehicle, at days 7, 14, and 35 after cortical ablation. Rehabilitation was applied at short and long term (LTR) after the lesion and then sacrificed...
2018: Neural Plasticity
https://www.readbyqxmd.com/read/29755513/motor-imagery-during-action-observation-of-locomotor-tasks-improves-rehabilitation-outcome-in-older-adults-after-total-hip-arthroplasty
#11
Uros Marusic, Sidney Grosprêtre, Armin Paravlic, Simon Kovač, Rado Pišot, Wolfgang Taube
This study aimed at determining whether the combination of action observation and motor imagery (AO + MI) of locomotor tasks could positively affect rehabilitation outcome after hip replacement surgery. Of initially 405 screened participants, 21 were randomly split into intervention group ( N = 10; mean age = 64 y; AO + MI of locomotor tasks: 30 min/day in the hospital, then 3×/week in their homes for two months) and control group ( N = 11, mean age = 63 y, active controls). The functional outcomes (Timed Up and Go, TUG; Four Step Square Test, FSST; and single- and dual-task gait and postural control) were measured before (PRE) and 2 months after surgery (POST)...
2018: Neural Plasticity
https://www.readbyqxmd.com/read/29755512/proton-pump-inhibitors-and-dementia-physiopathological-mechanisms-and-clinical-consequences
#12
REVIEW
Gloria Ortiz-Guerrero, Diana Amador-Muñoz, Carlos Alberto Calderón-Ospina, Daniel López-Fuentes, Mauricio Orlando Nava Mesa
Alzheimer's disease (AD) is the most common type of dementia, mainly encompassing cognitive decline in subjects aged ≥65 years. Further, AD is characterized by selective synaptic and neuronal degeneration, vascular dysfunction, and two histopathological features: extracellular amyloid plaques composed of amyloid beta peptide (A β ) and neurofibrillary tangles formed by hyperphosphorylated tau protein. Dementia and AD are chronic neurodegenerative conditions with a complex physiopathology involving both genetic and environmental factors...
2018: Neural Plasticity
https://www.readbyqxmd.com/read/29755511/examination-stress-results-in-attentional-bias-and-altered-neural-reactivity-in-test-anxious-individuals
#13
Xiaocong Zhang, Yunying Dong, Renlai Zhou
Examination stress occurs so frequently in the lives of students. The neural mechanisms of attentional bias induced by examination stress in test-anxious individuals remain unclear. Accordingly, we investigated the attentional bias toward test-related threatening words in selected high and low test-anxious participants under the stress of final examinations by using an event-related potential (ERP) technique. A classic dot-probe paradigm was adopted with a test-related/test-unrelated threatening word and a neutral word pair as cues...
2018: Neural Plasticity
https://www.readbyqxmd.com/read/29743884/exploring-postoperative-cognitive-dysfunction-and-delirium-in-noncardiac-surgery-using-mri-a-systematic-review
#14
REVIEW
Chenxi Huang, Johan Mårtensson, Ismail Gögenur, Mohammad Sohail Asghar
Surgical patients are at high risk of developing postoperative cognitive dysfunction (POCD) and postoperative delirium (POD). POCD and POD are associated with increased morbidity and mortality and worsening functional outcomes leading to severe socioeconomic consequences for the patient and the society in general. Magnetic resonance imaging (MRI) offers a unique opportunity to study the anatomy and function of the brain. MRI thus plays an important role in elucidating the neuronal component of POCD and POD...
2018: Neural Plasticity
https://www.readbyqxmd.com/read/29725348/dynamic-neuro-cognitive-imagery-improves-mental-imagery-ability-disease-severity-and-motor-and-cognitive-functions-in-people-with-parkinson-s-disease
#15
Amit Abraham, Ariel Hart, Isaac Andrade, Madeleine E Hackney
People with Parkinson's disease (PD) experience kinesthetic deficits, which affect motor and nonmotor functions, including mental imagery. Imagery training is a recommended, yet underresearched, approach in PD rehabilitation. Dynamic Neuro-Cognitive Imagery (DNI™) is a codified method for imagery training. Twenty subjects with idiopathic PD (Hoehn and Yahr stages I-III) were randomly allocated into DNI training (experimental; n = 10) or in-home learning and exercise program (control; n = 10). Both groups completed at least 16 hours of training within two weeks...
2018: Neural Plasticity
https://www.readbyqxmd.com/read/29725347/diffusion-tensor-imaging-evaluation-of-neural-network-development-in-patients-undergoing-therapeutic-repetitive-transcranial-magnetic-stimulation-following-stroke
#16
Naoki Yamada, Ryo Ueda, Wataru Kakuda, Ryo Momosaki, Takahiro Kondo, Takuya Hada, Nobuyuki Sasaki, Takatoshi Hara, Atsushi Senoo, Masahiro Abo
We aimed to investigate plastic changes in cerebral white matter structures using diffusion tensor imaging following a 15-day stroke rehabilitation program. We compared the detection of cerebral plasticity between generalized fractional anisotropy (GFA), a novel tool for investigating white matter structures, and fractional anisotropy (FA). Low-frequency repetitive transcranial magnetic stimulation (LF-rTMS) of 2400 pulses applied to the nonlesional hemisphere and 240 min intensive occupation therapy (OT) daily over 15 days...
2018: Neural Plasticity
https://www.readbyqxmd.com/read/29725346/theta-burst-stimulation-enhances-connectivity-of-the-dorsal-attention-network-in-young-healthy-subjects-an-exploratory-study
#17
Lubomira Anderkova, Dominik Pizem, Patricia Klobusiakova, Martin Gajdos, Eva Koritakova, Irena Rektorova
We examined effects of theta burst stimulation (TBS) applied over two distinct cortical areas (the right inferior frontal gyrus and the left superior parietal lobule) on the Stroop task performance in 20 young healthy subjects. Neural underpinnings of the behavioral effect were tested using fMRI. A single session of intermittent TBS of the left superior parietal lobule induced certain cognitive speed enhancement and significantly increased resting-state connectivity of the dorsal attention network. This is an exploratory study that prompts further research with multiple-session TBS in subjects with cognitive impairment...
2018: Neural Plasticity
https://www.readbyqxmd.com/read/29721010/targeted-neuromodulation-of-abnormal-interhemispheric-connectivity-to-promote-neural-plasticity-and-recovery-of-arm-function-after-stroke-a-randomized-crossover-clinical-trial-study-protocol
#18
Michael R Borich, Steven L Wolf, Andrew Q Tan, Jacqueline A Palmer
Background: Despite intensive rehabilitation efforts, most stroke survivors have persistent functional disability of the paretic arm and hand. These motor impairments may be due in part to maladaptive changes in structural and functional connections between brain regions. The following early stage clinical trial study protocol describes a noninvasive brain stimulation approach to target transcallosally mediated interhemispheric connections between the ipsi- and contralesional motor cortices (iM1 and cM1) using corticocortical paired associative stimulation (ihPAS)...
2018: Neural Plasticity
https://www.readbyqxmd.com/read/29721009/biomarkers-of-rehabilitation-therapy-vary-according-to-stroke-severity
#19
Erin Burke Quinlan, Lucy Dodakian, Jill See, Alison McKenzie, Jill Campbell Stewart, Steven C Cramer
Biomarkers that capture treatment effects could improve the precision of clinical decision making for restorative therapies. We examined the performance of candidate structural, functional, and angiogenesis-related MRI biomarkers before and after a 3-week course of standardized robotic therapy in 18 patients with chronic stroke and hypothesized that results vary significantly according to stroke severity. Patients were 4.1 ± 1 months poststroke, with baseline arm Fugl-Meyer scores of 20-60. When all patients were examined together, no imaging measure changed over time in a manner that correlated with treatment-induced motor gains...
2018: Neural Plasticity
https://www.readbyqxmd.com/read/29713339/exercise-intervention-associated-with-cognitive-improvement-in-alzheimer-s-disease
#20
REVIEW
Meng Ying Cui, Yang Lin, Ji Yao Sheng, Xuewen Zhang, Ran Ji Cui
Alzheimer's disease (AD) is a progressive neurodegenerative disease with the syndrome of cognitive and functional decline. Pharmacotherapy has always been in a dominant position for the treatment of AD. However, in most cases, drug therapy is accompanied with clinical delays when older adults have suffered from cognitive decline in episodic memory, working memory, and executive function. On the other hand, accumulating evidence suggests that exercise intervention may ameliorate the progression of cognitive impairment in aging ones while the standard strategy is lacking based on different levels of cognitive decline especially in mild cognitive impairment (MCI) and AD...
2018: Neural Plasticity
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