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Neural Plasticity

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https://www.readbyqxmd.com/read/28808590/genesis-and-maintenance-of-attentional-biases-the-role-of-the-locus-coeruleus-noradrenaline-system
#1
REVIEW
Mana R Ehlers, Rebecca M Todd
Emotionally arousing events are typically better remembered than mundane ones, in part because emotionally relevant aspects of our environment are prioritized in attention. Such biased attentional tuning is itself the result of associative processes through which we learn affective and motivational relevance of cues. We propose that the locus coeruleus-noradrenaline (LC-NA) system plays an important role in the genesis of attentional biases through associative learning processes as well as their maintenance...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28785487/stress-induced-neuroplasticity-and-mental-disorders
#2
EDITORIAL
Fushun Wang, Fang Pan, Lee A Shapiro, Jason H Huang
No abstract text is available yet for this article.
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28781902/study-on-lesion-assessment-of-cerebello-thalamo-cortical-network-in-wilson-s-disease-with-diffusion-tensor-imaging
#3
Anqin Wang, Hongli Wu, Chunsheng Xu, Lanfeng Tang, Jaeyoun Lee, Min Wang, Man Jiang, Chuanfu Li, Qi Lu, Chunyun Zhang
Wilson's disease (WD) is a genetic disorder of copper metabolism with pathological copper accumulation in the brain and any other tissues. This article aimed to assess lesions in cerebello-thalamo-cortical network with an advanced technique of diffusion tensor imaging (DTI) in WD. 35 WD patients and 30 age- and sex-matched healthy volunteers were recruited to accept diffusion-weighted images with 15 gradient vectors and conventional magnetic resonance imaging (MRI). The DTI parameters, including fractional anisotropy (FA) and mean diffusion (MD), were calculated by diffusion kurtosis estimator software...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28781901/enkephalins-endogenous-analgesics-with-an-emerging-role-in-stress-resilience
#4
REVIEW
Mathilde S Henry, Louis Gendron, Marie-Eve Tremblay, Guy Drolet
Psychological stress is a state of mental or emotional strain or tension that results from adverse or demanding circumstances. Chronic stress is well known to induce anxiety disorders and major depression; it is also considered a risk factor for Alzheimer's disease. Stress resilience is a positive outcome that is associated with preserved cognition and healthy aging. Resilience presents psychological and biological characteristics intrinsic to an individual conferring protection against the development of psychopathologies in the face of adversity...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28770114/human-app-gene-expression-alters-active-zone-distribution-and-spontaneous-neurotransmitter-release-at-the-drosophila-larval-neuromuscular-junction
#5
Ekaterina A Saburova, Alexander N Vasiliev, Violetta V Kravtsova, Elena V Ryabova, Andrey L Zefirov, Olga I Bolshakova, Svetlana V Sarantseva, Igor I Krivoi
This study provides further insight into the molecular mechanisms that control neurotransmitter release. Experiments were performed on larval neuromuscular junctions of transgenic Drosophila melanogaster lines with different levels of human amyloid precursor protein (APP) production. To express human genes in motor neurons of Drosophila, the UAS-GAL4 system was used. Human APP gene expression increased the number of synaptic boutons per neuromuscular junction. The total number of active zones, detected by Bruchpilot protein puncta distribution, remained unchanged; however, the average number of active zones per bouton decreased...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28770113/potential-roles-of-exosomal-micrornas-as-diagnostic-biomarkers-and-therapeutic-application-in-alzheimer-s-disease
#6
REVIEW
Jian-Jiao Chen, Bin Zhao, Jie Zhao, Shao Li
Exosomes are bilipid layer-enclosed vesicles derived from endosomes and are released from neural cells. They contain a diversity of proteins, mRNAs, and microRNAs (miRNAs) that are delivered to neighboring cells and/or are transported to distant sites. miRNAs released from exosomes appear to be associated with multiple neurodegenerative conditions linking to Alzheimer's disease (AD) which is marked by hyperphosphorylated tau proteins and accumulation of Aβ plaques. Exciting findings reveal that miRNAs released from exosomes modulate the expression and function of amyloid precursor proteins (APP) and tau proteins...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28770112/anodal-transcranial-direct-current-stimulation-provokes-neuroplasticity-in-repetitive-mild-traumatic-brain-injury-in-rats
#7
Ho Jeong Kim, Soo Jeong Han
Repetitive mild traumatic brain injury (rmTBI) provokes behavioral and cognitive changes. But the study about electrophysiologic findings and managements of rmTBI is limited. In this study, we investigate the effects of anodal transcranial direct current stimulation (tDCS) on rmTBI. Thirty-one Sprague Dawley rats were divided into the following groups: sham, rmTBI, and rmTBI treated by tDCS. Animals received closed head mTBI three consecutive times a day. Anodal tDCS was applied to the left motor cortex. We evaluated the motor-evoked potential (MEP) and the somatosensory-evoked potential (SEP)...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28758034/endophilin2-interacts-with-glua1-to-mediate-ampa-receptor-endocytosis-induced-by-oligomeric-amyloid-%C3%AE
#8
Jifeng Zhang, Yichen Yin, Zhisheng Ji, Zhenbin Cai, Bo Zhao, Jiong Li, Minghui Tan, Guoqing Guo
Amyloid-β (Aβ) plays an important role in Alzheimer's disease (AD), as oligomeric Aβ induces loss of postsynaptic AMPA receptors (AMPARs) leading to cognitive deficits. The loss of postsynaptic AMPARs is mediated through the clathrin-dependent endocytosis pathway, in which endophilin2 is one of the important regulatory proteins. Endophilin2, which is enriched in both the pre- and postsynaptic membrane, has previously been reported to be important for recycling of synaptic vesicles at the presynaptic membrane...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28740740/environmental-factors-promoting-neural-plasticity-insights-from-animal-and-human-studies
#9
REVIEW
Laura Mandolesi, Francesca Gelfo, Laura Serra, Simone Montuori, Arianna Polverino, Giuseppe Curcio, Giuseppe Sorrentino
We do not all grow older in the same way. Some individuals have a cognitive decline earlier and faster than others who are older in years but cerebrally younger. This is particularly easy to verify in people who have maintained regular physical activity and healthy and cognitively stimulating lifestyle and even in the clinical field. There are patients with advanced neurodegeneration, such as Alzheimer's disease (AD), that, despite this, have mild cognitive impairment. What determines this interindividual difference? Certainly, it cannot be the result of only genetic factors...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28740739/a-combined-water-extract-of-frankincense-and-myrrh-alleviates-neuropathic-pain-in-mice-via-modulation-of-trpv1
#10
Danyou Hu, Changming Wang, Fengxian Li, Shulan Su, Niuniu Yang, Yan Yang, Chan Zhu, Hao Shi, Lei Yu, Xiao Geng, Leying Gu, Xiaolin Yuan, Zhongli Wang, Guang Yu, Zongxiang Tang
Frankincense and myrrh are widely used in clinics as a pair of herbs to obtain a synergistic effect for relieving pain. To illuminate the analgesia mechanism of frankincense and myrrh, we assessed its effect in a neuropathic pain mouse model. Transient receptor potential vanilloid 1 (TRPV1) plays a crucial role in neuropathic pain and influences the plasticity of neuronal connectivity. We hypothesized that the water extraction of frankincense and myrrh (WFM) exerted its analgesia effect by modulating the neuronal function of TRPV1...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28717523/assessment-of-emotional-expressions-after-full-face-transplantation
#11
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
#12
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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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