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Neuroscience Bulletin

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https://www.readbyqxmd.com/read/29779085/progressive-grey-matter-volume-changes-in-patients-with-schizophrenia-over-6-weeks-of-antipsychotic-treatment-and-their-relationship-to-clinical-improvement
#1
Xiao Zhang, Yuyanan Zhang, Jinmin Liao, Sisi Jiang, Jun Yan, Weihua Yue, Dai Zhang, Hao Yan
Cross-sectional and longitudinal studies have identified widespread and progressive grey matter volume (GMV) reductions in schizophrenia, especially in the frontal lobe. In this study, we found a progressive GMV decrease in the rostral medial frontal cortex (rMFC, including the anterior cingulate cortex) in the patient group during a 6-week follow-up of 40 patients with schizophrenia and 31 healthy controls well-matched for age, gender, and education. The higher baseline GMV in the rMFC predicted better improvement in the positive score on the Positive and Negative Syndrome Scale (PANSS), and this might be related to the improved reality-monitoring...
May 19, 2018: Neuroscience Bulletin
https://www.readbyqxmd.com/read/29761417/lack-of-association-between-dnmt3b-polymorphisms-and-sporadic-parkinson-s-disease-in-a-han-chinese-population
#2
LETTER
Hong Pan, Jun-Yi Shen, Juan-Juan Du, Shi-Shuang Cui, Jin Liu, Yi-Qi Lin, Yi-Xi He, Yang Fu, Chao Gao, Gen Li, Sheng-Di Chen, Jian-Fang Ma
No abstract text is available yet for this article.
May 14, 2018: Neuroscience Bulletin
https://www.readbyqxmd.com/read/29740753/facial-expression-enhances-emotion-perception-compared-to-vocal-prosody-behavioral-and-fmri-studies
#3
Heming Zhang, Xuhai Chen, Shengdong Chen, Yansong Li, Changming Chen, Quanshan Long, Jiajin Yuan
Facial and vocal expressions are essential modalities mediating the perception of emotion and social communication. Nonetheless, currently little is known about how emotion perception and its neural substrates differ across facial expression and vocal prosody. To clarify this issue, functional MRI scans were acquired in Study 1, in which participants were asked to discriminate the valence of emotional expression (angry, happy or neutral) from facial, vocal, or bimodal stimuli. In Study 2, we used an affective priming task (unimodal materials as primers and bimodal materials as target) and participants were asked to rate the intensity, valence, and arousal of the targets...
May 9, 2018: Neuroscience Bulletin
https://www.readbyqxmd.com/read/29713895/mutant-huntingtin-causes-a-selective-decrease-in-the-expression-of-synaptic-vesicle-protein-2c
#4
Chaohua Peng, Gaochun Zhu, Xiangqian Liu, He Li
Huntington's disease (HD) is a neurodegenerative disease caused by a polyglutamine expansion in the huntingtin (Htt) protein. Mutant Htt causes synaptic transmission dysfunctions by interfering in the expression of synaptic proteins, leading to early HD symptoms. Synaptic vesicle proteins 2 (SV2s), a family of synaptic vesicle proteins including 3 members, SV2A, SV2B, and SV2C, plays important roles in synaptic physiology. Here, we investigated whether the expression of SV2s is affected by mutant Htt in the brains of HD transgenic (TG) mice and Neuro2a mouse neuroblastoma cells (N2a cells) expressing mutant Htt...
April 30, 2018: Neuroscience Bulletin
https://www.readbyqxmd.com/read/29713894/fluoxetine-is-neuroprotective-in-early-brain-injury-via-its-anti-inflammatory-and-anti-apoptotic-effects-in-a-rat-experimental-subarachnoid-hemorrhage-model
#5
Hui-Min Hu, Bin Li, Xiao-Dong Wang, Yun-Shan Guo, Hua Hui, Hai-Ping Zhang, Biao Wang, Da-Geng Huang, Ding-Jun Hao
Fluoxetine, an anti-depressant drug, has recently been shown to provide neuroprotection in central nervous system injury, but its roles in subarachnoid hemorrhage (SAH) remain unclear. In this study, we aimed to evaluate whether fluoxetine attenuates early brain injury (EBI) after SAH. We demonstrated that intraperitoneal injection of fluoxetine (10 mg/kg per day) significantly attenuated brain edema and blood-brain barrier (BBB) disruption, microglial activation, and neuronal apoptosis in EBI after experimental SAH, as evidenced by the reduction of brain water content and Evans blue dye extravasation, prevention of disruption of the tight junction proteins zonula occludens-1, claudin-5, and occludin, a decrease of cells staining positive for Iba-1, ED-1, and TUNEL and a decline in IL-1β, IL-6, TNF-α, MDA, 3-nitrotyrosine, and 8-OHDG levels...
April 30, 2018: Neuroscience Bulletin
https://www.readbyqxmd.com/read/29679217/spatiotemporal-imaging-of-cellular-energy-metabolism-with-genetically-encoded-fluorescent-sensors-in-brain
#6
REVIEW
Zhuo Zhang, Weicai Chen, Yuzheng Zhao, Yi Yang
The brain has very high energy requirements and consumes 20% of the oxygen and 25% of the glucose in the human body. Therefore, the molecular mechanism underlying how the brain metabolizes substances to support neural activity is a fundamental issue for neuroscience studies. A well-known model in the brain, the astrocyte-neuron lactate shuttle, postulates that glucose uptake and glycolytic activity are enhanced in astrocytes upon neuronal activation and that astrocytes transport lactate into neurons to fulfill their energy requirements...
April 20, 2018: Neuroscience Bulletin
https://www.readbyqxmd.com/read/29671217/cyproheptadine-regulates-pyramidal-neuron-excitability-in-mouse-medial-prefrontal-cortex
#7
Yan-Lin He, Kai Wang, Qian-Ru Zhao, Yan-Ai Mei
Cyproheptadine (CPH), a first-generation antihistamine, enhances the delayed rectifier outward K+ current (IK ) in mouse cortical neurons through a sigma-1 receptor-mediated protein kinase A pathway. In this study, we aimed to determine the effects of CPH on neuronal excitability in current-clamped pyramidal neurons in mouse medial prefrontal cortex slices. CPH (10 µmol/L) significantly reduced the current density required to generate action potentials (APs) and increased the instantaneous frequency evoked by a depolarizing current...
April 18, 2018: Neuroscience Bulletin
https://www.readbyqxmd.com/read/29667002/cystatin-c-induces-insulin-resistance-in-hippocampal-neurons-and-promotes-cognitive-dysfunction-in-rodents
#8
LETTER
Lan Luo, Jinyu Ma, Yue Li, Zongkang Hu, Chengfeng Jiang, Hao Cai, Cheng Sun
No abstract text is available yet for this article.
April 17, 2018: Neuroscience Bulletin
https://www.readbyqxmd.com/read/29663175/gfap-positive-progenitor-cell-production-is-concentrated-in-specific-encephalic-regions-in-young-adult-mice
#9
Zhibao Guo, Yingying Su, Huifang Lou
Previous genetic fate-mapping studies have indicated that embryonic glial fibrillary acidic protein-positive (GFAP+ ) cells are multifunctional progenitor/neural stem cells that can produce astrocytes as well as neurons and oligodendrocytes throughout the adult mouse central nervous system (CNS). However, emerging evidence from recent studies indicates that GFAP+ cells adopt different cell fates and generate different cell types in different regions. Moreover, the fate of GFAP+ cells in the young adult mouse CNS is not well understood...
April 16, 2018: Neuroscience Bulletin
https://www.readbyqxmd.com/read/29663174/a-rarely-encountered-case-a-patient-with-primary-pituitary-tuberculosis-and-stroke
#10
LETTER
Min Chen, Chengru Song, Hongbo Liu
No abstract text is available yet for this article.
April 16, 2018: Neuroscience Bulletin
https://www.readbyqxmd.com/read/29651705/rat-cerebrospinal-fluid-treatment-method-through-cisterna-cerebellomedullaris-injection
#11
Thainá Garbino Dos Santos, Mery Stéfani Leivas Pereira, Diogo Losch Oliveira
Drugs that lack the ability to cross the blood-brain barrier (BBB) need to be placed directly into the central nervous system. Our laboratory studies the involvement of the glutamatergic system in the aggressiveness of glioma, and some ligands of glutamate receptors cannot permeate the BBB. Here, glioma-implanted rats were treated by a technique that delivers ligands directly into the cerebrospinal fluid by puncture into the cisterna cerebellomedullaris. Rats were anesthetized and fixed in a rodent stereotactic device...
April 12, 2018: Neuroscience Bulletin
https://www.readbyqxmd.com/read/29633087/development-of-an-autism-subtyping-questionnaire-based-on-social-behaviors
#12
Fan-Chao Meng, Xin-Jie Xu, Tian-Jia Song, Xiao-Jing Shou, Xiao-Li Wang, Song-Ping Han, Ji-Sheng Han, Rong Zhang
Autism spectrum disorder can be differentiated into three subtypes (aloof, passive, and active-but-odd) based on social behaviors according to the Wing Subgroups Questionnaire (WSQ). However, the correlations between the scores on some individual items and the total score are poor. In the present study, we translated the WSQ into Chinese, modified it, validated it in autistic and typically-developing Chinese children, and renamed it the Beijing Autism Subtyping Questionnaire (BASQ). Our results demonstrated that the BASQ had improved validity and reliability, and differentiated autistic children into these three subtypes more precisely...
April 10, 2018: Neuroscience Bulletin
https://www.readbyqxmd.com/read/29611035/znf804a-variation-may-affect-hippocampal-prefrontal-resting-state-functional-connectivity-in-schizophrenic-and-healthy-individuals
#13
Yuyanan Zhang, Hao Yan, Jinmin Liao, Hao Yu, Sisi Jiang, Qi Liu, Dai Zhang, Weihua Yue
The ZNF804A variant rs1344706 has consistently been associated with schizophrenia and plays a role in hippocampal-prefrontal functional connectivity during working memory. Whether the effect exists in the resting state and in patients with schizophrenia remains unclear. In this study, we investigated the ZNF804A polymorphism at rs1344706 in 92 schizophrenic patients and 99 healthy controls of Han Chinese descent, and used resting-state functional magnetic resonance imaging to explore the functional connectivity in the participants...
April 2, 2018: Neuroscience Bulletin
https://www.readbyqxmd.com/read/29589216/vernier-but-not-grating-acuity-contributes-to-an-early-stage-of-visual-word-processing
#14
Yufei Tan, Xiuhong Tong, Wei Chen, Xuchu Weng, Sheng He, Jing Zhao
The process of reading words depends heavily on efficient visual skills, including analyzing and decomposing basic visual features. Surprisingly, previous reading-related studies have almost exclusively focused on gross aspects of visual skills, while only very few have investigated the role of finer skills. The present study filled this gap and examined the relations of two finer visual skills measured by grating acuity (the ability to resolve periodic luminance variations across space) and Vernier acuity (the ability to detect/discriminate relative locations of features) to Chinese character-processing as measured by character form-matching and lexical decision tasks in skilled adult readers...
March 28, 2018: Neuroscience Bulletin
https://www.readbyqxmd.com/read/29582251/up-regulation-of-akt-and-nav1-8-in-bmk-i-induced-pain
#15
LETTER
Guokun Zhou, Yunlu Jiao, You Zhou, Shichao Qin, Jie Tao, Feng Jiang, Zhi-Yong Tan, Yong-Hua Ji
No abstract text is available yet for this article.
March 27, 2018: Neuroscience Bulletin
https://www.readbyqxmd.com/read/29582250/opposite-interplay-between-the-canonical-wnt-%C3%AE-catenin-pathway-and-ppar-gamma-a-potential-therapeutic-target-in-gliomas
#16
REVIEW
Alexandre Vallée, Yves Lecarpentier, Rémy Guillevin, Jean-Noël Vallée
In gliomas, the canonical Wingless/Int (WNT)/β-catenin pathway is increased while peroxisome proliferator-activated receptor gamma (PPAR-γ) is downregulated. The two systems act in an opposite manner. This review focuses on the interplay between WNT/β-catenin signaling and PPAR-γ and their metabolic implications as potential therapeutic target in gliomas. Activation of the WNT/β-catenin pathway stimulates the transcription of genes involved in proliferation, invasion, nucleotide synthesis, tumor growth, and angiogenesis...
March 26, 2018: Neuroscience Bulletin
https://www.readbyqxmd.com/read/29564731/dopamine-d4-receptor-gene-associated-with-the-frontal-striatal-cerebellar-loop-in-children-with-adhd-a-resting-state-fmri-study
#17
Andan Qian, Xin Wang, Huiru Liu, Jiejie Tao, Jiejie Zhou, Qiong Ye, Jiance Li, Chuang Yang, Jingliang Cheng, Ke Zhao, Meihao Wang
Attention deficit hyperactivity disorder (ADHD) is a common childhood neuropsychiatric disorder that has been linked to the dopaminergic system. This study aimed to investigate the effects of regulation of the dopamine D4 receptor (DRD4) on functional brain activity during the resting state in ADHD children using the methods of regional homogeneity (ReHo) and functional connectivity (FC). Resting-state functional magnetic resonance imaging data were analyzed in 49 children with ADHD. All participants were classified as either carriers of the DRD4 4-repeat/4-repeat (4R/4R) allele (n = 30) or the DRD4 2-repeat (2R) allele (n = 19)...
March 21, 2018: Neuroscience Bulletin
https://www.readbyqxmd.com/read/29557546/whole-brain-mapping-of-direct-inputs-to-and-axonal-projections-from-gabaergic-neurons-in-the-parafacial-zone
#18
Yun-Ting Su, Meng-Yang Gu, Xi Chu, Xiang Feng, Yan-Qin Yu
The GABAergic neurons in the parafacial zone (PZ) play an important role in sleep-wake regulation and have been identified as part of a sleep-promoting center in the brainstem, but the long-range connections mediating this function remain poorly characterized. Here, we performed whole-brain mapping of both the inputs and outputs of the GABAergic neurons in the PZ of the mouse brain. We used the modified rabies virus EnvA-ΔG-DsRed combined with a Cre/loxP gene-expression strategy to map the direct monosynaptic inputs to the GABAergic neurons in the PZ, and found that they receive inputs mainly from the hypothalamic area, zona incerta, and parasubthalamic nucleus in the hypothalamus; the substantia nigra, pars reticulata and deep mesencephalic nucleus in the midbrain; and the intermediate reticular nucleus and medial vestibular nucleus (parvocellular part) in the pons and medulla...
March 20, 2018: Neuroscience Bulletin
https://www.readbyqxmd.com/read/29556912/aatyk-is-a-novel-regulator-of-oligodendrocyte-differentiation-and-myelination
#19
Chunxia Jiang, Wanqing Yang, Zhihong Fan, Peng Teng, Ruyi Mei, Junlin Yang, Aifen Yang, Mengsheng Qiu, Xiaofeng Zhao
Oligodendrocytes (OLs) are myelinating glial cells that form myelin sheaths around axons to ensure rapid and focal conduction of action potentials. Here, we found that an axonal outgrowth regulatory molecule, AATYK (apoptosis-associated tyrosine kinase), was up-regulated with OL differentiation and remyelination. We therefore studied its role in OL differentiation. The results showed that AATYK knockdown inhibited OL differentiation and the expression of myelin genes in vitro. Moreover, AATYK-deficiency maintained the proliferation status of OLs but did not affect their survival...
March 19, 2018: Neuroscience Bulletin
https://www.readbyqxmd.com/read/29508252/biophotonic-activity-and-transmission-mediated-by-mutual-actions-of-neurotransmitters-are-involved-in-the-origin-and-altered-states-of-consciousness
#20
LETTER
Weitai Chai, Zhengrong Han, Zhuo Wang, Zehua Li, Fangyan Xiao, Yan Sun, Yanfeng Dai, Rendong Tang, Jiapei Dai
No abstract text is available yet for this article.
March 5, 2018: Neuroscience Bulletin
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