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BMC Neuroscience

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https://www.readbyqxmd.com/read/29041906/from-provocation-to-aggression-the-neural-network
#1
Jonathan Repple, Christina M Pawliczek, Bianca Voss, Steven Siegel, Frank Schneider, Nils Kohn, Ute Habel
BACKGROUND: In-vivo observations of neural processes during human aggressive behavior are difficult to obtain, limiting the number of studies in this area. To address this gap, the present study implemented a social reactive aggression paradigm in 29 healthy men, employing non-violent provocation in a two-player game to elicit aggressive behavior in fMRI settings. RESULTS: Participants responded more aggressively after high provocation reflected in taking more money from their opponents...
October 17, 2017: BMC Neuroscience
https://www.readbyqxmd.com/read/29041904/shift-in-the-function-of-netrin-1-from-axon-outgrowth-to-axon-branching-in-developing-cerebral-cortical-neurons
#2
Hideko Matsumoto, Masabumi Nagashima
BACKGROUND: Netrin-1, a multifunctional axon guidance cue, elicits axon outgrowth via one of its receptors deleted in colorectal cancer (DCC) in several types of neurons, including cerebral cortical neurons of embryonic mice. However, we and others have observed de novo formation of axon branches without axon outgrowth induced by netrin-1 in cortical culture of neonatal hamsters. These previous reports suggested the possibility that netrin-1 function might alter during development, which we here investigated using dissociated culture prepared from cerebral cortices of embryonic mice...
October 17, 2017: BMC Neuroscience
https://www.readbyqxmd.com/read/29037171/peakcaller-an-automated-graphical-interface-for-the-quantification-of-intracellular-calcium-obtained-by-high-content-screening
#3
Elena Artimovich, Russell K Jackson, Michaela B C Kilander, Yu-Chih Lin, Michael W Nestor
BACKGROUND: Intracellular calcium is an important ion involved in the regulation and modulation of many neuronal functions. From regulating cell cycle and proliferation to initiating signaling cascades and regulating presynaptic neurotransmitter release, the concentration and timing of calcium activity governs the function and fate of neurons. Changes in calcium transients can be used in high-throughput screening applications as a basic measure of neuronal maturity, especially in developing or immature neuronal cultures derived from stem cells...
October 16, 2017: BMC Neuroscience
https://www.readbyqxmd.com/read/29020944/a-convenient-uhplc-ms-ms-method-for-routine-monitoring-of-plasma-and-brain-levels-of-nicotine-and-cotinine-as-a-tool-to-validate-newly-developed-preclinical-smoking-model-in-mouse
#4
Mohammad A Kaisar, Raja Reddy Kallem, Ravi K Sajja, Ali Ehsan Sifat, Luca Cucullo
BACKGROUND: A sensitive, rapid and selective UHPLC-MS/MS method has been developed and validated for the quantification of Nicotine (NT) and Cotinine (CN) using Continine-d 3 as internal standard (IS) as per FDA guidelines. Sample preparation involved simple protein precipitation of 20 µL mouse plasma or brain homogenate using acetonitrile at 1:8 ratio. Mass Spectrometer was operated in positive polarity under the multiple reaction-monitoring mode using electro spray ionization technique and the transitions of m/z 163...
October 11, 2017: BMC Neuroscience
https://www.readbyqxmd.com/read/28985714/unhealthy-smokers-scopes-for-prophylactic-intervention-and-clinical-treatment
#5
REVIEW
Shikha Prasad, Mohammad Abul Kaisar, Luca Cucullo
BACKGROUND: Globally, tobacco use causes approximately 6 million deaths per year, and predictions report that with current trends; more than 8 million deaths are expected annually by 2030. Cigarette smokings is currently accountable for more than 480,000 deaths each year in United States (US) and is the leading cause of preventable death in the US. On average, smokers die 10 years earlier than nonsmokers and if smoking continues at its current proportion among adolescents, one in every 13 Americans aged 17 years or younger is expected to die prematurely from a smoking-related illness...
October 4, 2017: BMC Neuroscience
https://www.readbyqxmd.com/read/28946859/ppar%C3%AE-coactivator-1%C3%AE-pgc-1%C3%AE-protects-neuroblastoma-cells-against-amyloid-beta-a%C3%AE-induced-cell-death-and-neuroinflammation-via-nf-%C3%AE%C2%BAb-pathway
#6
Yuqin Zhang, Changchun Chen, Yanliu Jiang, Shupei Wang, Xiaoyu Wu, Kai Wang
BACKGROUND: Alzheimer's disease is characterized by the accumulation of amyloid beta (Aβ) and the formation of neurofibrillary tangles. Aβ is the main constituent of senile plaques and is largely involved in neuronal death and neuroinflammation. Peroxisome proliferator-activated receptor gamma coactivator-1 alpha (PGC-1α) is one of the main transcriptional coactivator and has been related to many fields such as energy metabolism, cardiovascular disease, neurodegenerative disorders, and so on...
September 25, 2017: BMC Neuroscience
https://www.readbyqxmd.com/read/28931376/why-to-cooperate-is-better-than-to-compete-brain-and-personality-components
#7
Michela Balconi, Davide Crivelli, Maria Elide Vanutelli
BACKGROUND: Cooperation and competition were compared in the present study. Brain correlates (electroencephalography, EEG frequency band, delta, theta, alpha, and beta) and hemodynamic measure of functional near-infrared spectroscopy (fNIRS, O2Hb) were acquired during a joined cooperative (Experiment 1) or competitive (Experiment 2) task. Subjects were required to match each other's cognitive performance (cooperation) or to make better than others (competition) in terms of accuracy (error rate, ER) and response time (RT)...
September 20, 2017: BMC Neuroscience
https://www.readbyqxmd.com/read/28886701/the-loss-of-function-disease-mutation-g301r-in-the-na-k-atpase-%C3%AE-2-isoform-decreases-lesion-volume-and-improves-functional-outcome-after-acute-spinal-cord-injury-in-mice
#8
Ditte Gry Ellman, Toke Jost Isaksen, Minna Christiansen Lund, Safinaz Dursun, Martin Wirenfeldt, Louise Helskov Jørgensen, Karin Lykke-Hartmann, Kate Lykke Lambertsen
BACKGROUND: The Na(+)/K(+)-ATPases are transmembrane ion pumps important for maintenance of ion gradients across the plasma membrane that serve to support multiple cellular functions, such as membrane potentials, regulation of cellular volume and pH, and co-transport of signaling transmitters in all animal cells. The α2Na(+)/K(+)-ATPase subunit isoform is predominantly expressed in astrocytes, which us the sharp Na(+)-gradient maintained by the sodium pump necessary for astroglial metabolism...
September 8, 2017: BMC Neuroscience
https://www.readbyqxmd.com/read/28886695/cerebral-microvascular-dysfunction-in-metabolic-syndrome-is-exacerbated-by-ischemia-reperfusion-injury
#9
Nathalie Obadia, Marcos Adriano Lessa, Anissa Daliry, Raquel Rangel Silvares, Fabiana Gomes, Eduardo Tibiriçá, Vanessa Estato
BACKGROUND: Metabolic syndrome (MetS) is associated with an increased risk of cerebrovascular diseases, including cerebral ischemia. Microvascular dysfunction is an important feature underlying the pathophysiology of cerebrovascular diseases. In this study, we aimed to investigate the impacts of ischemia and reperfusion (IR) injury on the cerebral microvascular function of rats with high-fat diet-induced MetS. RESULTS: We examined Wistar rats fed a high-fat diet (HFD) or normal diet (CTL) for 20 weeks underwent 30 min of bilateral carotid artery occlusion followed by 1 h of reperfusion (IR) or sham surgery...
September 8, 2017: BMC Neuroscience
https://www.readbyqxmd.com/read/28836958/day2day-investigating-daily-variability-of-magnetic-resonance-imaging-measures-over-half-a-year
#10
Elisa Filevich, Nina Lisofsky, Maxi Becker, Oisin Butler, Martyna Lochstet, Johan Martensson, Elisabeth Wenger, Ulman Lindenberger, Simone Kühn
BACKGROUND: Most studies of brain structure and function, and their relationships to cognitive ability, have relied on inter-individual variability in magnetic resonance (MR) images. Intra-individual variability is often ignored or implicitly assumed to be equivalent to the former. Testing this assumption empirically by collecting enough data on single individuals is cumbersome and costly. We collected a dataset of multiple MR sequences and behavioural covariates to quantify and characterize intra-individual variability in MR images for multiple individuals...
August 24, 2017: BMC Neuroscience
https://www.readbyqxmd.com/read/28814279/musashi-1-is-the-candidate-of-the-regulator-of-hair-cell-progenitors-during-inner-ear-regeneration
#11
Takahiro Wakasaki, Hiroaki Niiro, Siamak Jabbarzadeh-Tabrizi, Mitsuru Ohashi, Takashi Kimitsuki, Takashi Nakagawa, Shizuo Komune, Koichi Akashi
BACKGROUND: Hair cell loss in the cochlea is caused by ototoxic drugs, aging, and environmental stresses and could potentially lead to devastating pathophysiological effects. In adult mammals, hair cell loss is irreversible and may result in hearing and balance deficits. In contrast, nonmammalian vertebrates, including birds, can regenerate hair cells through differentiation of supporting cells and restore inner ear function, suggesting that hair cell progenitors are present in the population of supporting cells...
August 16, 2017: BMC Neuroscience
https://www.readbyqxmd.com/read/28806929/myelination-is-delayed-during-postnatal-brain-development-in-the-mdx-mouse-model-of-duchenne-muscular-dystrophy
#12
Azeez Aranmolate, Nathaniel Tse, Holly Colognato
BACKGROUND: In Duchenne muscular dystrophy (DMD), the loss of the dystrophin component of the dystrophin-glycoprotein complex (DGC) compromises plasma membrane integrity in skeletal muscle, resulting in extensive muscle degeneration. In addition, many DMD patients exhibit brain deficits in which the cellular etiology remains poorly understood. We recently found that dystroglycan, a receptor component of the DGC that binds intracellularly to dystrophin, regulates the development of oligodendrocytes, the myelinating glial cells of the brain...
August 14, 2017: BMC Neuroscience
https://www.readbyqxmd.com/read/28806920/specific-ion-channels-contribute-to-key-elements-of-pathology-during-secondary-degeneration-following-neurotrauma
#13
Ryan L O'Hare Doig, Wissam Chiha, Marcus K Giacci, Nathanael J Yates, Carole A Bartlett, Nicole M Smith, Stuart I Hodgetts, Alan R Harvey, Melinda Fitzgerald
BACKGROUND: Following partial injury to the central nervous system, cells beyond the initial injury site undergo secondary degeneration, exacerbating loss of neurons, compact myelin and function. Changes in Ca(2+) flux are associated with metabolic and structural changes, but it is not yet clear how flux through specific ion channels contributes to the various pathologies. Here, partial optic nerve transection in adult female rats was used to model secondary degeneration. Treatment with combinations of three ion channel inhibitors was used as a tool to investigate which elements of oxidative and structural damage related to long term functional outcomes...
August 14, 2017: BMC Neuroscience
https://www.readbyqxmd.com/read/28800723/a-clca-regulatory-protein-present-in-the-chemosensory-cilia-of-olfactory-sensory-neurons-induces-a-ca-2-activated-cl-current-when-transfected-into-hek293
#14
Casilda V Mura, Ricardo Delgado, María Graciela Delgado, Diego Restrepo, Juan Bacigalupo
BACKGROUND: CLCA is a family of metalloproteases that regulate Ca(2+)-activated Cl(-) fluxes in epithelial tissues. In HEK293 cells, CLCA1 promotes membrane expression of an endogenous Anoctamin 1 (ANO1, also termed TMEM16A)-dependent Ca(2+)-activated Cl(-) current. Motif architecture similarity with CLCA2, 3 and 4 suggested that they have similar functions. We previously detected the isoform CLCA4L in rat olfactory sensory neurons, where Anoctamin 2 is the principal chemotransduction Ca(2+)-activated Cl(-) channel...
August 11, 2017: BMC Neuroscience
https://www.readbyqxmd.com/read/28784087/sesamin-protects-sh-sy5y-cells-against-mechanical-stretch-injury-and-promoting-cell-survival
#15
Zhiming Xu, Yingliang Liu, Dianxu Yang, Fang Yuan, Jun Ding, Hao Chen, Hengli Tian
BACKGROUND: Sesamin is a well-known antioxidant extracted from sesame seeds that exhibits various curative effects. The present study investigated whether sesamin would protect neuroblastoma SH-SY5Y cells against mechanical stretch injury-induced increases in reactive oxygen species (ROS) and apoptosis. Additionally, the mechanisms underlying these actives were investigated. Following exposure to mechanical stretch injury, cells were incubated for further investigations. Lactate dehydrogenase and Cell Counting Kit-8 assays were used to assess cell viability, and a terminal deoxynucleotidyl transferase dUTP nick end labeling assay and flow cytometric analysis were performed to evaluate changes in mitochondrial membrane potential (ΔΨm)...
August 7, 2017: BMC Neuroscience
https://www.readbyqxmd.com/read/28778148/neuroplasticity-pathways-and-protein-interaction-networks-are-modulated-by-vortioxetine-in-rodents
#16
Jessica A Waller, Sara Holm Nygaard, Yan Li, Kristian Gaarn du Jardin, Joseph A Tamm, Aicha Abdourahman, Betina Elfving, Alan L Pehrson, Connie Sánchez, Rasmus Wernersson
BACKGROUND: The identification of biomarkers that predict susceptibility to major depressive disorder and treatment response to antidepressants is a major challenge. Vortioxetine is a novel multimodal antidepressant that possesses pro-cognitive properties and differentiates from other conventional antidepressants on various cognitive and plasticity measures. The aim of the present study was to identify biological systems rather than single biomarkers that may underlie vortioxetine's treatment effects...
August 4, 2017: BMC Neuroscience
https://www.readbyqxmd.com/read/28764650/immunocytochemistry-and-fluorescence-imaging-efficiently-identify-individual-neurons-with-crispr-cas9-mediated-gene-disruption-in-primary-cortical-cultures
#17
Hiroto Tsunematsu, Akiko Uyeda, Nobuhiko Yamamoto, Noriyuki Sugo
BACKGROUND: CRISPR/Cas9 system is a powerful method to investigate the role of genes by introducing a mutation selectively and efficiently to specific genome positions in cell and animal lines. However, in primary neuron cultures, this method is affected by the issue that the effectiveness of CRISPR/Cas9 is different in each neuron. Here, we report an easy, quick and reliable method to identify mutants induced by the CRISPR/Cas9 system at a single neuron level, using immunocytochemistry (ICC) and fluorescence imaging...
August 1, 2017: BMC Neuroscience
https://www.readbyqxmd.com/read/28750618/difference-in-the-functional-connectivity-of-the-dorsolateral-prefrontal-cortex-between-smokers-with-nicotine-dependence-and-individuals-with-internet-gaming-disorder
#18
Xin Ge, Yawen Sun, Xu Han, Yao Wang, Weina Ding, Mengqiu Cao, Yasong Du, Jianrong Xu, Yan Zhou
BACKGROUND: It has been reported that internet gaming disorder (IGD) and smokers with nicotine dependence (SND) share clinical characteristics, such as over-engagement despite negative consequences and cravings. This study is to investigate the alterations in the resting-state functional connectivity (rsFC) of the dorsolateral prefrontal cortex (DLPFC) observed in SND and IGD. In this study, 27 IGD, 29 SND, and 33 healthy controls (HC) underwent a resting-state functional magnetic resonance imaging (rs-fMRI) scan...
July 27, 2017: BMC Neuroscience
https://www.readbyqxmd.com/read/28720074/regeneration-of-long-distance-peripheral-nerve-defects-after-delayed-reconstruction-in-healthy-and-diabetic-rats-is-supported-by-immunomodulatory-chitosan-nerve-guides
#19
Lena Stenberg, Maria Stößel, Giulia Ronchi, Stefano Geuna, Yaobin Yin, Susanne Mommert, Lisa Mårtensson, Jennifer Metzen, Claudia Grothe, Lars B Dahlin, Kirsten Haastert-Talini
BACKGROUND: Delayed reconstruction of transection or laceration injuries of peripheral nerves is inflicted by a reduced regeneration capacity. Diabetic conditions, more frequently encountered in clinical practice, are known to further impair regeneration in peripheral nerves. Chitosan nerve guides (CNGs) have recently been introduced as a new generation of medical devices for immediate peripheral nerve reconstruction. Here, CNGs were used for 45 days delayed reconstruction of critical length 15 mm rat sciatic nerve defects in either healthy Wistar rats or diabetic Goto-Kakizaki rats; the latter resembling type 2 diabetes...
July 18, 2017: BMC Neuroscience
https://www.readbyqxmd.com/read/28821235/hippocampus-and-amygdala-radiomic-biomarkers-for-the-study-of-autism-spectrum-disorder
#20
Ahmad Chaddad, Christian Desrosiers, Lama Hassan, Camel Tanougast
BACKGROUND: Emerging evidence suggests the presence of neuroanatomical abnormalities in subjects with autism spectrum disorder (ASD). Identifying anatomical correlates could thus prove useful for the automated diagnosis of ASD. Radiomic analyses based on MRI texture features have shown a great potential for characterizing differences occurring from tissue heterogeneity, and for identifying abnormalities related to these differences. However, only a limited number of studies have investigated the link between image texture and ASD...
July 11, 2017: BMC Neuroscience
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