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Neural Plasticity

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https://www.readbyqxmd.com/read/28717523/assessment-of-emotional-expressions-after-full-face-transplantation
#1
Çağdaş Topçu, Hilmi Uysal, Ömer Özkan, Özlenen Özkan, Övünç Polat, Merve Bedeloğlu, Arzu Akgül, Ela Naz Döğer, Refik Sever, Nur Ebru Barçın, Kadriye Tombak, Ömer Halil Çolak
We assessed clinical features as well as sensory and motor recoveries in 3 full-face transplantation patients. A frequency analysis was performed on facial surface electromyography data collected during 6 basic emotional expressions and 4 primary facial movements. Motor progress was assessed using the wavelet packet method by comparison against the mean results obtained from 10 healthy subjects. Analyses were conducted on 1 patient at approximately 1 year after face transplantation and at 2 years after transplantation in the remaining 2 patients...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28717522/effect-of-hypoxic-injury-in-mood-disorder
#2
REVIEW
Fenglian Zhao, Junling Yang, Ranji Cui
Hypoxemia is a common complication of the diseases associated with the central nervous system, and neurons are highly sensitive to the availability of oxygen. Neuroplasticity is an important property of the neural system controlling breathing, memory, and cognitive ability. However, the underlying mechanism has not yet been clearly elucidated. In recent years, several pieces of evidence have highlighted the effect of hypoxic injury on neuronal plasticity in the pathogenesis and treatment of mood disorder. Therefore, the present study reviewed the relevant articles regarding hypoxic injury and neuronal plasticity and discussed the pathological changes and physiological functions of neurons in hypoxemia in order to provide a translational perspective to the relevance of hypoxic injury and mood disorder...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28717521/improving-and-predicting-outcomes-of-traumatic-brain-injury-neuroplasticity-imaging-modalities-and-perspective-therapy
#3
EDITORIAL
Chih-Lung Lin, Aaron S Dumont, John H Zhang, Mario Zuccarello, Cheng-Sheng Chen
No abstract text is available yet for this article.
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28706741/the-link-between-depression-and-chronic-pain-neural-mechanisms-in-the-brain
#4
REVIEW
Jiyao Sheng, Shui Liu, Yicun Wang, Ranji Cui, Xuewen Zhang
Chronic pain, as a stress state, is one of the critical factors for determining depression, and their coexistence tends to further aggravate the severity of both disorders. Unfortunately, their association remains unclear, which creates a bottleneck problem for managing chronic pain-induced depression. In recent years, studies have found considerable overlaps between pain- and depression-induced neuroplasticity changes and neurobiological mechanism changes. Such overlaps are vital to facilitating the occurrence and development of chronic pain and chronic pain-induced depression...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28706740/action-video-game-experience-related-to-altered-large-scale-white-matter-networks
#5
Diankun Gong, Weiyi Ma, Jinnan Gong, Hui He, Li Dong, Dan Zhang, Jianfu Li, Cheng Luo, Dezhong Yao
With action video games (AVGs) becoming increasingly popular worldwide, the cognitive benefits of AVG experience have attracted continuous research attention over the past two decades. Research has repeatedly shown that AVG experience can causally enhance cognitive ability and is related to neural plasticity in gray matter and functional networks in the brain. However, the relation between AVG experience and the plasticity of white matter (WM) network still remains unclear. WM network modulates the distribution of action potentials, coordinating the communication between brain regions and acting as the framework of neural networks...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28706739/emulation-with-organic-memristive-devices-of-impairment-of-ltp-mechanism-in-neurodegenerative-disease-pathology
#6
Silvia Battistoni, Victor Erokhin, Salvatore Iannotta
We explore and demonstrate the extension of the synapse-mimicking properties of memristive devices to a dysfunctional synapse as it occurs in the Alzheimer's disease (AD) pathology. The ability of memristive devices to reproduce synapse properties such as LTP, LTD, and STDP has been already widely demonstrated, and moreover, they were used for developing artificial neuron networks (perceptrons) able to simulate the information transmission in a cell network. However, a major progress would be to extend the common sense of neuromorphic device even to the case of dysfunction of natural synapses...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28698811/erratum-to-a-novel-nonsense-mutation-of-pou4f3-gene-causes-autosomal-dominant-hearing-loss
#7
Chi Zhang, Mingming Wang, Yun Xiao, Fengguo Zhang, Yicui Zhou, Jianfeng Li, Qingyin Zheng, Xiaohui Bai, Haibo Wang
[This corrects the article DOI: 10.1155/2016/1512831.].
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28698810/circadian-rhythms-in-fear-conditioning-an-overview-of-behavioral-brain-system-and-molecular-interactions
#8
REVIEW
Anne Albrecht, Oliver Stork
The formation of fear memories is a powerful and highly evolutionary conserved mechanism that serves the behavioral adaptation to environmental threats. Accordingly, classical fear conditioning paradigms have been employed to investigate fundamental molecular processes of memory formation. Evidence suggests that a circadian regulation mechanism allows for a timestamping of such fear memories and controlling memory salience during both their acquisition and their modification after retrieval. These mechanisms include an expression of molecular clocks in neurons of the amygdala, hippocampus, and medial prefrontal cortex and their tight interaction with the intracellular signaling pathways that mediate neural plasticity and information storage...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28685102/autism-like-behaviours-and-memory-deficits-result-from-a-western-diet-in-mice
#9
Ekaterina Veniaminova, Raymond Cespuglio, Chi Wai Cheung, Alexei Umriukhin, Nataliia Markova, Elena Shevtsova, Klaus-Peter Lesch, Daniel C Anthony, Tatyana Strekalova
Nonalcoholic fatty liver disease, induced by a Western diet (WD), evokes central and peripheral inflammation that is accompanied by altered emotionality. These changes can be associated with abnormalities in social behaviour, hippocampus-dependent cognitive functions, and metabolism. Female C57BL/6J mice were fed with a regular chow or with a WD containing 0.2% of cholesterol and 21% of saturated fat for three weeks. WD-treated mice exhibited increased social avoidance, crawl-over and digging behaviours, decreased body-body contacts, and hyperlocomotion...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28680706/abnormal-functional-connectivity-of-ventral-anterior-insula-in-asthmatic-patients-with-depression
#10
Yuqun Zhang, Yuan Yang, Rongrong Bian, Yingying Yin, Zhenghua Hou, Yingying Yue, Zhi Xu, Yonggui Yuan
OBJECTIVE: To explore the underlying mechanism of depression in asthmatic patients, the ReHo in the insula and its FC was used to probe the differences between depressed asthmatic (DA) and nondepressed asthmatic (NDA) patients. METHODS: 18 DA patients, 24 NDA patients, and 60 healthy controls (HCs) received resting-state fMRI scan, severity of depression, and asthma control assessment. RESULTS: DA patients showed increased FC between the left ventral anterior insula (vAI) and the left middle temporal gyrus compared with both NDA and HC groups...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28660083/visual-plasticity-in-adults
#11
EDITORIAL
Jiawei Zhou, Zili Liu, Simon Clavagnier, Alexandre Reynaud, Fang Hou
No abstract text is available yet for this article.
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28656112/nicotinamide-administration-improves-remyelination-after-stroke
#12
Congxiao Wang, Yi Zhang, Jie Ding, Zhen Zhao, Cheng Qian, Ying Luan, Gao-Jun Teng
AIMS: Stroke is a leading cause of morbidity and mortality. This study aimed to determine whether nicotinamide administration could improve remyelination after stroke and reveal the underlying mechanism. METHODS: Adult male C57BL/6J mice were intraperitoneally (i.p.) administered with nicotinamide (200 mg/kg, daily) or saline after stroke induced by photothrombotic occlusion of the middle cerebral artery. FK866 (3 mg/kg, daily, bis in die), an inhibitor of NAMPT, and ANA-12 (0...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28634552/inherited-paediatric-motor-neuron-disorders-beyond-spinal-muscular-atrophy
#13
REVIEW
Hooi Ling Teoh, Kate Carey, Hugo Sampaio, David Mowat, Tony Roscioli, Michelle Farrar
Paediatric motor neuron diseases encompass a group of neurodegenerative diseases characterised by the onset of muscle weakness and atrophy before the age of 18 years, attributable to motor neuron loss across various neuronal networks in the brain and spinal cord. While the genetic underpinnings are diverse, advances in next generation sequencing have transformed diagnostic paradigms. This has reinforced the clinical phenotyping and molecular genetic expertise required to navigate the complexities of such diagnoses...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28634551/mechanisms-and-consequences-of-dopamine-depletion-induced-attenuation-of-the-spinophilin-neurofilament-medium-interaction
#14
Andrew C Hiday, Michael C Edler, Asma B Salek, Cameron W Morris, Morrent Thang, Tyler J Rentz, Kristie L Rose, Lisa M Jones, Anthony J Baucum
Signaling changes that occur in the striatum following the loss of dopamine neurons in the Parkinson disease (PD) are poorly understood. While increases in the activity of kinases and decreases in the activity of phosphatases have been observed, the specific consequences of these changes are less well understood. Phosphatases, such as protein phosphatase 1 (PP1), are highly promiscuous and obtain substrate selectivity via targeting proteins. Spinophilin is the major PP1-targeting protein enriched in the postsynaptic density of striatal dendritic spines...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28634550/sortilin-related-receptor-expression-in-human-neural-stem-cells-derived-from-alzheimer-s-disease-patients-carrying-the-apoe-epsilon-4-allele
#15
Alen Zollo, Zoe Allen, Helle F Rasmussen, Filomena Iannuzzi, Yichen Shi, Agnete Larsen, Thorsten J Maier, Carmela Matrone
Alzheimer's disease (AD) is the most common form of dementia in the elderly; important risk factors are old age and inheritance of the apolipoprotein E4 (APOE4) allele. Changes in amyloid precursor protein (APP) binding, trafficking, and sorting may be important AD causative factors. Secretase-mediated APP cleavage produces neurotoxic amyloid-beta (Aβ) peptides, which form lethal deposits in the brain. In vivo and in vitro studies have implicated sortilin-related receptor (SORL1) as an important factor in APP trafficking and processing...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28607776/could-lc-ne-dependent-adjustment-of-neural-gain-drive-functional-brain-network-reorganization
#16
REVIEW
Carole Guedj, David Meunier, Martine Meunier, Fadila Hadj-Bouziane
The locus coeruleus-norepinephrine (LC-NE) system is thought to act at synaptic, cellular, microcircuit, and network levels to facilitate cognitive functions through at least two different processes, not mutually exclusive. Accordingly, as a reset signal, the LC-NE system could trigger brain network reorganizations in response to salient information in the environment and/or adjust the neural gain within its target regions to optimize behavioral responses. Here, we provide evidence of the co-occurrence of these two mechanisms at the whole-brain level, in resting-state conditions following a pharmacological stimulation of the LC-NE system...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28596922/noradrenergic-modulation-of-cognition-in-health-and-disease
#17
REVIEW
Olga Borodovitsyna, Matthew Flamini, Daniel Chandler
Norepinephrine released by the locus coeruleus modulates cellular processes and synaptic transmission in the central nervous system through its actions at a number of pre- and postsynaptic receptors. This transmitter system facilitates sensory signal detection and promotes waking and arousal, processes which are necessary for navigating a complex and dynamic sensory environment. In addition to its effects on sensory processing and waking behavior, norepinephrine is now recognized as a contributor to various aspects of cognition, including attention, behavioral flexibility, working memory, and long-term mnemonic processes...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28589041/attenuated-late-phase-arc-transcription-in-the-dentate-gyrus-of-mice-lacking-egr3
#18
Amanda Maple, Rachel E Lackie, Diana I Elizalde, Stephanie L Grella, Chelsey C Damphousse, Collin Xa, Amelia L Gallitano, Diano F Marrone
The dentate gyrus (DG) engages in sustained Arc transcription for at least 8 hours following behavioral induction, and this time course may be functionally coupled to the unique role of the DG in hippocampus-dependent learning and memory. The factors that regulate long-term DG Arc expression, however, remain poorly understood. Animals lacking Egr3 show less Arc expression following convulsive stimulation, but the effect of Egr3 ablation on behaviorally induced Arc remains unknown. To address this, Egr3(-/-) and wild-type (WT) mice explored novel spatial environments and were sacrificed either immediately or after 5, 60, 240, or 480 minutes, and Arc expression was quantified by fluorescence in situ hybridization...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28589040/long-term-impairment-of-sound-processing-in-the-auditory-midbrain-by-daily-short-term-exposure-to-moderate-noise
#19
Liang Cheng, Shao-Hui Wang, Kang Peng, Xiao-Mei Liao
Most citizen people are exposed daily to environmental noise at moderate levels with a short duration. The aim of the present study was to determine the effects of daily short-term exposure to moderate noise on sound level processing in the auditory midbrain. Sound processing properties of auditory midbrain neurons were recorded in anesthetized mice exposed to moderate noise (80 dB SPL, 2 h/d for 6 weeks) and were compared with those from age-matched controls. Neurons in exposed mice had a higher minimum threshold and maximum response intensity, a longer first spike latency, and a higher slope and narrower dynamic range for rate level function...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28573051/sensory-eye-dominance-in-treated-anisometropic-amblyopia
#20
Yao Chen, Jiafeng Wang, Hongmei Shi, Xiaoxiao Wang, Lixia Feng
Amblyopia results from inadequate visual experience during the critical period of visual development. Abnormal binocular interactions are believed to play a critical role in amblyopia. These binocular deficits can often be resolved, owing to the residual visual plasticity in amblyopes. In this study, we quantitatively measured the sensory eye dominance in treated anisometropic amblyopes to determine whether they had fully recovered. Fourteen treated anisometropic amblyopes with normal or corrected to normal visual acuity participated, and their sensory eye dominance was assessed by using a binocular phase combination paradigm...
2017: Neural Plasticity
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