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Frontiers in Molecular Neuroscience

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https://www.readbyqxmd.com/read/28217082/genomic-editing-of-non-coding-rna-genes-with-crispr-cas9-ushers-in-a-potential-novel-approach-to-study-and-treat-schizophrenia
#1
REVIEW
Chuanjun Zhuo, Weihong Hou, Lirong Hu, Chongguang Lin, Ce Chen, Xiaodong Lin
Schizophrenia is a genetically related mental illness, in which the majority of genetic alterations occur in the non-coding regions of the human genome. In the past decade, a growing number of regulatory non-coding RNAs (ncRNAs) including microRNAs (miRNAs) and long non-coding RNAs (lncRNAs) have been identified to be strongly associated with schizophrenia. However, the studies of these ncRNAs in the pathophysiology of schizophrenia and the reverting of their genetic defects in restoration of the normal phenotype have been hampered by insufficient technology to manipulate these ncRNA genes effectively as well as a lack of appropriate animal models...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28210213/corrigendum-exogenous-ketone-supplements-reduce-anxiety-related-behavior-in-sprague-dawley-and-wistar-albino-glaxo-rijswijk-rats
#2
Csilla Ari, Zsolt Kovács, Gabor Juhasz, Cem Murdun, Craig R Goldhagen, Andrew P Koutnik, Angela M Poff, Shannon L Kesl, Dominic P D'Agostino
[This corrects the article on p. 137 in vol. 9, PMID: 27999529.].
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28210212/differential-behavioral-and-neurobiological-effects-of-chronic-corticosterone-treatment-in-adolescent-and-adult-rats
#3
Jitao Li, Xiaomeng Xie, Youhong Li, Xiao Liu, Xuemei Liao, Yun-Ai Su, Tianmei Si
Adolescence is a critical period with ongoing maturational processes in stress-sensitive systems. While adolescent individuals show heightened stress-induced hormonal responses compared to adults, it is unclear whether and how the behavioral and neurobiological consequences of chronic stress would differ between the two age groups. Here we address this issue by examining the effects of chronic exposure to the stress hormone, corticosterone (CORT), in both adolescent and adult animals. Male Sprague-Dawley (SD) rats were injected intraperitoneally with CORT (40 mg/kg) or vehicle for 21 days during adolescence (post-natal day (PND) 29-49) or adulthood (PND 71-91) and then subjected to behavioral testing or sacrifice for western blot analyses...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28210211/app-as-a-protective-factor-in-acute-neuronal-insults
#4
REVIEW
Dimitri Hefter, Andreas Draguhn
Despite its key role in the molecular pathology of Alzheimer's disease (AD), the physiological function of amyloid precursor protein (APP) is unknown. Increasing evidence, however, points towards a neuroprotective role of this membrane protein in situations of metabolic stress. A key observation is the up-regulation of APP following acute (stroke, cardiac arrest) or chronic (cerebrovascular disease) hypoxic-ischemic conditions. While this mechanism may increase the risk or severity of AD, APP by itself or its soluble extracellular fragment APPsα can promote neuronal survival...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28197078/redundant-postsynaptic-functions-of-syncams-1-3-during-synapse-formation
#5
Daniel K Fowler, James H Peters, Carly Williams, Philip Washbourne
Investigating the roles of synaptogenic adhesion molecules during synapse formation has proven challenging, often due to compensatory functions between additional family members. The synaptic cell adhesion molecules 1-3 (SynCAM1-3) are expressed both pre- and postsynaptically, share highly homologous domains and are synaptogenic when ectopically presented to neurons; yet their endogenous functions during synaptogenesis are unclear. Here we report that SynCAM1-3 are functionally redundant and collectively necessary for synapse formation in cultured hippocampal neurons...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28197077/commentary-genome-wide-association-study-identifies-74-loci-associated-with-educational-attainment
#6
COMMENT
Félix Hernández, Jesús Ávila
No abstract text is available yet for this article.
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28197076/structure-and-synaptic-function-of-metal-binding-to-the-amyloid-precursor-protein-and-its-proteolytic-fragments
#7
REVIEW
Klemens Wild, Alexander August, Claus U Pietrzik, Stefan Kins
Alzheimer's disease (AD) is ultimately linked to the amyloid precursor protein (APP). However, current research reveals an important synaptic function of APP and APP-like proteins (APLP1 and 2). In this context various neurotrophic and neuroprotective functions have been reported for the APP proteolytic fragments sAPPα, sAPPβ and the monomeric amyloid-beta peptide (Aβ). APP is a metalloprotein and binds copper and zinc ions. Synaptic activity correlates with a release of these ions into the synaptic cleft and dysregulation of their homeostasis is linked to different neurodegenerative diseases...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28197075/development-of-cortical-networks-under-continuous-stimulation
#8
Ophir Orenstein, Hanna Keren
No abstract text is available yet for this article.
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28197074/the-first-extracellular-linker-is-important-for-several-aspects-of-the-gating-mechanism-of-human-trpa1-channel
#9
Lenka Marsakova, Ivan Barvik, Vlastimil Zima, Lucie Zimova, Viktorie Vlachova
Transient receptor potential ankyrin 1 (TRPA1) is an excitatory ion channel involved in pain, inflammation and itching. This channel gates in response to many irritant and proalgesic agents, and can be modulated by calcium and depolarizing voltage. While the closed-state structure of TRPA1 has been recently resolved, also having its open state is essential for understanding how this channel works. Here we use molecular dynamics simulations combined with electrophysiological measurements and systematic mutagenesis to predict and explore the conformational changes coupled to the expansion of the presumptive channel's lower gate...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28197073/association-of-trka-and-app-is-promoted-by-ngf-and-reduced-by-cell-death-promoting-agents
#10
Nadia Canu, Ilaria Pagano, Luca Rosario La Rosa, Marsha Pellegrino, Maria Teresa Ciotti, Delio Mercanti, Fabiola Moretti, Valentina Sposato, Viviana Triaca, Carla Petrella, Ichiro N Maruyama, Andrea Levi, Pietro Calissano
The amyloid precursor protein (APP) interacts with the tropomyosin receptor kinase A (TrkA) in normal rat, mouse, and human brain tissue but not in Alzheimer's disease (AD) brain tissue. However, it has not been reported whether the two proteins interact directly, and if so, which domains are involved. Clarifying these points will increase our understanding of the role and regulation of the TrkA/APP interaction in normal brain functioning as well as in AD. Here we addressed these questions using bimolecular fluorescence complementation (BiFC) and the proximity ligation assay (PLA)...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28197072/hmgb1-mediates-autophagy-dysfunction-via-perturbing-beclin1-vps34-complex-in-dopaminergic-cell-model
#11
Jinsha Huang, Jiaolong Yang, Yan Shen, Haiyang Jiang, Chao Han, Guoxin Zhang, Ling Liu, Xiaoyun Xu, Jie Li, Zhicheng Lin, Nian Xiong, Zhentao Zhang, Jing Xiong, Tao Wang
Parkinson's disease (PD), a progressive neurodegenerative disorder, is characterized by irreversible dopaminergic neuron loss and intra-neuronal α-synuclein aggregation. High mobility group box 1 (HMGB1) has been proven to be involved in autophagy dysfunction induced by α-synuclein accumulation, and the Beclin1-vacuolar protein sorting 34 (Vps34) complex is of great importance to the initiation of autophagy. Nevertheless, the concrete interaction mechanism between HMGB1, α-synuclein and autophagy remains elusive, especially in the context of PD...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28197071/chemosensitivity-of-u251-cells-to-the-co-treatment-of-d-penicillamine-and-copper-possible-implications-on-wilson-disease-patients
#12
Meghri Katerji, Kassem Barada, Mustapha Jomaa, Firas Kobeissy, Ahmad-Kareem Makkawi, Wassim Abou-Kheir, Julnar Usta
D-Penicillamine (PA), a copper chelator, and one of the recommended drugs for treatment of Wilson disease (WD) has been reported to worsen the symptoms of patients with neurologic presentations. However, the cause of this paradoxical response has not been fully elucidated and requires further investigations. Accordingly, we have studied the in vitro effect of Copper (Cu) and/or PA treatment on human glioblastoma U251 cells as an in vitro model of Cu cytotoxicity. Treatment of U251 cells with either Cu or PA exerted no significant effect on their morphology, viability or ROS level...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28197070/role-of-app-interactions-with-heterotrimeric-g-proteins-physiological-functions-and-pathological-consequences
#13
REVIEW
Philip F Copenhaver, Donat Kögel
Following the discovery that the amyloid precursor protein (APP) is the source of β-amyloid peptides (Aβ) that accumulate in Alzheimer's disease (AD), structural analyses suggested that the holoprotein resembles a transmembrane receptor. Initial studies using reconstituted membranes demonstrated that APP can directly interact with the heterotrimeric G protein Gαo (but not other G proteins) via an evolutionarily G protein-binding motif in its cytoplasmic domain. Subsequent investigations in cell culture showed that antibodies against the extracellular domain of APP could stimulate Gαo activity, presumably mimicking endogenous APP ligands...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28194097/corrigendum-the-emerging-role-of-tetraspanins-in-the-proteolytic-processing-of-the-amyloid-precursor-protein
#14
Lisa Seipold, Paul Saftig
[This corrects the article on p. 149 in vol. 9, PMID: 28066176.].
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28194096/morphological-plasticity-of-emerging-purkinje-cells-in-response-to-exogenous-vegf
#15
Leonard Herrfurth, Verena Theis, Veronika Matschke, Caroline May, Katrin Marcus, Carsten Theiss
Vascular endothelial growth factor (VEGF) is well known as the growth factor with wide-ranging functions even in the central nervous system (CNS). Presently, most attention is given to the investigation of its role in neuronal protection, growth and maturation processes, whereby most effects are mediated through VEGF receptor 2 (VEGFR-2). The purpose of our current study is to provide new insights into the impact of VEGF on immature and mature Purkinje cells (PCs) in accordance with maturity and related receptor expression...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28190998/quantitative-nucleotide-level-analysis-of-regulation-of-translation-in-response-to-depolarization-of-cultured-neural-cells
#16
Jasbir S Dalal, Chengran Yang, Darshan Sapkota, Allison M Lake, David R O'Brien, Joseph D Dougherty
Studies on regulation of gene expression have contributed substantially to understanding mechanisms for the long-term activity-dependent alterations in neural connectivity that are thought to mediate learning and memory. Most of these studies, however, have focused on the regulation of mRNA transcription. Here, we utilized high-throughput sequencing coupled with ribosome footprinting to globally characterize the regulation of translation in primary mixed neuronal-glial cultures in response to sustained depolarization...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28179877/putative-membrane-bound-transporters-mfsd14a-and-mfsd14b-are-neuronal-and-affected-by-nutrient-availability
#17
Emilia Lekholm, Emelie Perland, Mikaela M Eriksson, Sofie V Hellsten, Frida A Lindberg, Jinar Rostami, Robert Fredriksson
Characterization of orphan transporters is of importance due to their involvement in cellular homeostasis but also in pharmacokinetics and pharmacodynamics. The tissue and cellular localization, as well as function, is still unknown for many of the solute carriers belonging to the major facilitator superfamily (MFS) Pfam clan. Here, we have characterized two putative novel transporters MFSD14A (HIAT1) and MFSD14B (HIATL1) in the mouse central nervous system and found protein staining throughout the adult mouse brain...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28174520/modulation-of-human-peripheral-blood-mononuclear-cell-signaling-by-medicinal-cannabinoids
#18
Wesley K Utomo, Marjan de Vries, Henri Braat, Marco J Bruno, Kaushal Parikh, Mònica Comalada, Maikel P Peppelenbosch, Harry van Goor, Gwenny M Fuhler
Medical marijuana is increasingly prescribed as an analgesic for a growing number of indications, amongst which terminal cancer and multiple sclerosis. However, the mechanistic aspects and properties of cannabis remain remarkably poorly characterized. In this study we aimed to investigate the immune-cell modulatory properties of medical cannabis. Healthy volunteers were asked to ingest medical cannabis, and kinome profiling was used to generate comprehensive descriptions of the cannabis challenge on inflammatory signal transduction in the peripheral blood of these volunteers...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28174519/identifying-the-role-of-glun2a-in-cerebral-ischemia
#19
Yongjun Sun, Long Wang, Zibin Gao
No abstract text is available yet for this article.
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28167900/parvalbumin-neurons-of-the-ventrolateral-hypothalamic-parvafox-nucleus-receive-a-glycinergic-input-a-gene-microarray-study
#20
Viktoria Szabolcsi, Gioele W Albisetti, Marco R Celio
The ventrolateral hypothalamic parvafox (formerly called PV1-Foxb1) nucleus is an anatomical entity of recent discovery and unknown function. With a view to gaining an insight into its putative functional role(s), we conducted a gene-microarray analysis and, armed with the forthcoming data, controlled the results with the Allen databases and the murine BrainStars (B(*)) database. The parvafox nucleus was specifically sampled by laser-capture microdissection and the transcriptome was subjected to a microarray analysis on Affymetrix chips...
2017: Frontiers in Molecular Neuroscience
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