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BMC Neuroscience

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https://www.readbyqxmd.com/read/29914377/neural-correlates-of-free-recall-of-famous-events-in-a-hypermnestic-individual-as-compared-to-an-age-and-education-matched-reference-group
#1
Thorsten Fehr, Angelica Staniloiu, Hans J Markowitsch, Peter Erhard, Manfred Herrmann
BACKGROUND: Memory performance of an individual (within the age range: 50-55 years old) showing superior memory abilities (protagonist PR) was compared to an age- and education-matched reference group in a historical facts ("famous events") retrieval task. RESULTS: Contrasting task versus baseline performance both PR and the reference group showed fMRI activation patterns in parietal and occipital brain regions. The reference group additionally demonstrated activation patterns in cingulate gyrus, whereas PR showed additional widespread activation patterns comprising frontal and cerebellar brain regions...
June 19, 2018: BMC Neuroscience
https://www.readbyqxmd.com/read/29895259/modulation-of-long-term-potentiation-like-cortical-plasticity-in-the-healthy-brain-with-low-frequency-pulsed-electromagnetic-fields
#2
Enrico Premi, Alberto Benussi, Antonio La Gatta, Stefano Visconti, Angelo Costa, Nicola Gilberti, Valentina Cantoni, Alessandro Padovani, Barbara Borroni, Mauro Magoni
BACKGROUND: Non-depolarizing magnetic fields, like low frequency-pulsed electromagnetic fields (LF-PEMFs) have shown the ability to modulate living structures, principally by influencing synaptic activity and ion channels on cellular membranes. Recently, the CTU Mega 20 device was presented as a molecular accelerator, using energy up to 200 J and providing high-power (2 Tesla) pulsating fields with a water-repulsive (diamagnetic) action and tissue biostimulation. We tested the hypothesis that LF-PEMFs could modulate long-term corticospinal excitability in healthy brains by applying CTU Mega 20® ...
June 13, 2018: BMC Neuroscience
https://www.readbyqxmd.com/read/29855257/altered-functional-connectivity-of-the-default-mode-network-by-glucose-loading-in-young-healthy-participants
#3
Kenji Ishibashi, Keita Sakurai, Keigo Shimoji, Aya M Tokumaru, Kenji Ishii
BACKGROUND: The functional connectivity of the default mode network (DMN) decreases in patients with Alzheimer's disease (AD) as well as in patients with type 2 diabetes mellitus (T2DM). Altered functional connectivity of the DMN is associated with cognitive impairment. T2DM is a known cause of cognitive dysfunction and dementia in the elderly, and studies have established that T2DM is a risk factor for AD. In addition, recent studies with positron emission tomography demonstrated that increased plasma glucose levels decrease neuronal activity, especially in the precuneus/posterior cingulate cortex (PC/PCC), which is the functional core of the DMN...
May 31, 2018: BMC Neuroscience
https://www.readbyqxmd.com/read/29783956/extremely-low-frequency-electromagnetic-field-exposure-and-restraint-stress-induce-changes-on-the-brain-lipid-profile-of-wistar-rats
#4
Jesús Martínez-Sámano, Alan Flores-Poblano, Leticia Verdugo-Díaz, Marco Antonio Juárez-Oropeza, Patricia V Torres-Durán
BACKGROUND: Exposure to electromagnetic fields can affect human health, damaging tissues and cell homeostasis. Stress modulates neuronal responses and composition of brain lipids. The aim of this study was to evaluate the effects of chronic extremely low frequency electromagnetic field (ELF-EMF) exposure, restraint stress (RS) or both (RS + ELF-EMF) on lipid profile and lipid peroxidation in Wistar rat brain. METHODS: Twenty-four young male Wistar rats were allocated into four groups: control, RS, ELF-EMF exposure, and RS + ELF-EMF for 21 days...
May 21, 2018: BMC Neuroscience
https://www.readbyqxmd.com/read/29783943/limited-effects-of-dysfunctional-macroautophagy-on-the-accumulation-of-extracellularly-derived-%C3%AE-synuclein-in-oligodendroglia-implications-for-msa-pathogenesis
#5
Lisa Fellner, Edith Buchinger, Dominik Brueck, Regina Irschick, Gregor K Wenning, Nadia Stefanova
BACKGROUND: The progressive neurodegenerative disorder multiple system atrophy (MSA) is characterized by α-synuclein-positive (oligodendro-) glial cytoplasmic inclusions (GCIs). A connection between the abnormal accumulation of α-synuclein in GCIs and disease initiation and progression has been postulated. Mechanisms involved in the formation of GCIs are unclear. Abnormal uptake of α-synuclein from extracellular space, oligodendroglial overexpression of α-synuclein, and/or dysfunctional protein degradation including macroautophagy have all been discussed...
May 21, 2018: BMC Neuroscience
https://www.readbyqxmd.com/read/29769037/a-method-for-estimating-relative-changes-in-the-synaptic-density-in-drosophila-central-nervous-system
#6
Dipti Rai, Swagata Dey, Krishanu Ray
BACKGROUND: Synapse density is an essential indicator of development and functioning of the central nervous system. It is estimated indirectly through the accumulation of pre and postsynaptic proteins in tissue sections. 3D reconstruction of the electron microscopic images in serial sections is one of the most definitive means of estimating the formation of active synapses in the brain. It is tedious and highly skill-dependent. Confocal imaging of whole mounts or thick sections of the brain provides a natural alternative for rapid gross estimation of the synapse density in large areas...
May 16, 2018: BMC Neuroscience
https://www.readbyqxmd.com/read/29739324/zinc-and-linoleic-acid-pre-treatment-attenuates-biochemical-and-histological-changes-in-the-midbrain-of-rats-with-rotenone-induced-parkinsonism
#7
Ngala Elvis Mbiydzenyuy, Herbert Izo Ninsiima, Miriela Betancourt Valladares, Constant Anatole Pieme
BACKGROUND: Studies have suggested the supplementation of Zinc and Linoleic acid in the management of neurodegenerative disorders but none has investigated the combined effects. Little is known about the neuroprotective effects of either Zinc or Linoleic acid or their combination against development of Parkinsonism. This study was designed to investigate the neuroprotective effects of Zinc and Linoleic acid in rotenone-induced Parkinsonism in rats. METHODS: Thirty-six young adult female rats weighing 100-150 g divided into six groups were used...
May 9, 2018: BMC Neuroscience
https://www.readbyqxmd.com/read/29716524/cochlear-morphology-in-the-developing-inner-ear-of-the-porcine-model-of-spontaneous-deafness
#8
Wei Chen, Qing-Qing Hao, Li-Li Ren, Wei Ren, Hui-Sang Lin, Wei-Wei Guo, Shi-Ming Yang
BACKGROUND: Auditory function and cochlear morphology have previously been described in a porcine model with spontaneous WS2-like phenotype. In the present study, cochlear histopathology was further investigated in the inner ear of the developing spontaneous deafness pig. RESULTS: We found that the stria vascularis transformed into a complex tri-laminar tissue at embryonic 85 days (E85) in normal pigs, but not in the MITF-/- pigs. As the neural crest (NC) of cochlea was derived by melanocytes...
May 2, 2018: BMC Neuroscience
https://www.readbyqxmd.com/read/29716523/mice-lacking-galectin-3-lgals3-function-have-decreased-home-cage-movement
#9
Tammy R Chaudoin, Stephen J Bonasera
BACKGROUND: Galectins are a large family of proteins evolved to recognize specific carbohydrate moieties. Given the importance of pattern recognition processes for multiple biological tasks, including CNS development and immune recognition, we examined the home cage behavioral phenotype of mice lacking galectin-3 (Lgals3) function. Using a sophisticated monitoring apparatus capable of examining feeding, drinking, and movement at millisecond temporal and 0.5 cm spatial resolutions, we observed daily behavioral patterns from 10 wildtype male C57BL/6J and 10 Lgals3 constitutive knockout (Lgals3-/- ; both cohorts aged 2-3 months) mice over 17 consecutive days...
May 2, 2018: BMC Neuroscience
https://www.readbyqxmd.com/read/29703151/clinical-features-and-risk-factors-of-neurological-involvement-in-sj%C3%A3-gren-s-syndrome
#10
Wenjing Ye, Siyan Chen, Xinshi Huang, Wei Qin, Ting Zhang, Xiaofang Zhu, Xiaochun Zhu, Chongxiang Lin, Xiaobing Wang
BACKGROUND: To investigated distinct manifestations of Sjögren's syndrome (SS) patients with neurological complications and the potential risk factors associated with neurological complications in SS, and to produce a disease evaluation and neurological involvement prediction for SS. METHODS: 566 patients who fulfilled the 2002 classification criteria for SS from the Rheumatology Department of the First Affiliated Hospital of Wenzhou Medical University were included in the cross-sectional study...
April 27, 2018: BMC Neuroscience
https://www.readbyqxmd.com/read/29745864/modulation-of-the-expression-of-genes-related-to-the-system-of-amyloid-beta-metabolism-in-the-brain-as-a-novel-mechanism-of-ceftriaxone-neuroprotective-properties
#11
Maria A Tikhonova, Tamara G Amstislavskaya, Victor M Belichenko, Larisa A Fedoseeva, Sergey P Kovalenko, Ekaterina E Pisareva, Alla S Avdeeva, Nataliya G Kolosova, Nikolai D Belyaev, Lyubomir I Aftanas
BACKGROUND: The dominant hypothesis about the pathogenesis of Alzheimer's disease (AD) is the "amyloid cascade" concept and modulating the expression of proteins involved in the metabolism of amyloid-beta (Aβ) is proposed as an effective strategy for the prevention and therapy of AD. Recently, we found that an antibiotic ceftriaxone (CEF), which possesses neuroprotective activity, reduced cognitive deficits and neurodegenerative changes in OXYS rats, a model of sporadic AD...
April 19, 2018: BMC Neuroscience
https://www.readbyqxmd.com/read/29745862/novel-functional-variants-at-the-gwas-implicated-loci-might-confer-risk-to-major-depressive-disorder-bipolar-affective-disorder-and-schizophrenia
#12
Leonid O Bryzgalov, Elena E Korbolina, Ilja I Brusentsov, Elena Y Leberfarb, Natalia P Bondar, Tatiana I Merkulova
BACKGROUND: A challenge of understanding the mechanisms underlying cognition including neurodevelopmental and neuropsychiatric disorders is mainly given by the potential severity of cognitive disorders for the quality of life and their prevalence. However, the field has been focused predominantly on protein coding variation until recently. Given the importance of tightly controlled gene expression for normal brain function, the goal of the study was to assess the functional variation including non-coding variation in human genome that is likely to play an important role in cognitive functions...
April 19, 2018: BMC Neuroscience
https://www.readbyqxmd.com/read/29745855/optogenetic-regulation-of-transcription
#13
REVIEW
Oksana Polesskaya, Ancha Baranova, Sarah Bui, Nikolai Kondratev, Evgeniya Kananykhina, Olga Nazarenko, Tatyana Shapiro, Frances Barg Nardia, Vladimir Kornienko, Vikas Chandhoke, Istvan Stadler, Raymond Lanzafame, Max Myakishev-Rempel
Optogenetics has become widely recognized for its success in real-time control of brain neurons by utilizing non-mammalian photosensitive proteins to open or close membrane channels. Here we review a less well known type of optogenetic constructs that employs photosensitive proteins to transduce the signal to regulate gene transcription, and its possible use in medicine. One of the problems with existing gene therapies is that they could remain active indefinitely while not allowing regulated transgene production on demand...
April 19, 2018: BMC Neuroscience
https://www.readbyqxmd.com/read/29745836/haplotype-analysis-of-apoe-intragenic-snps
#14
Vladimir N Babenko, Dmitry A Afonnikov, Elena V Ignatieva, Anton V Klimov, Fedor E Gusev, Evgeny I Rogaev
BACKGROUND: APOE ε4 allele is most common genetic risk factor for Alzheimer's disease (AD) and cognitive decline. However, it remains poorly understood why only some carriers of APOE ε4 develop AD and how ethnic variabilities in APOE locus contribute to AD risk. Here, to address the role of APOE haplotypes, we reassessed the diversity of APOE locus in major ethnic groups and in Alzheimer's Disease Neuroimaging Initiative (ADNI) dataset on patients with AD, and subjects with mild cognitive impairment (MCI), and control non-demented individuals...
April 19, 2018: BMC Neuroscience
https://www.readbyqxmd.com/read/29745834/neuroscience-researches-at-belyaev-conference-2017
#15
EDITORIAL
Yuriy L Orlov, Leonid L Moroz, Ancha V Baranova
No abstract text is available yet for this article.
April 19, 2018: BMC Neuroscience
https://www.readbyqxmd.com/read/29673328/effect-of-laser-doppler-flowmetry-and-occlusion-time-on-outcome-variability-and-mortality-in-rat-middle-cerebral-artery-occlusion-inconclusive-results
#16
Edvin Ingberg, Hua Dock, Elvar Theodorsson, Annette Theodorsson, Jakob O Ström
BACKGROUND: Stroke is among the leading causes of death and disability. Although intense research efforts have provided promising treatment options in animals, most clinical trials in humans have failed and the therapeutic options are few. Several factors have been suggested to explain this translational difficulty, particularly concerning methodology and study design. Consistent infarcts and low mortality might be desirable in some, but not all, studies. Here, we aimed to investigate whether the use of laser Doppler flowmetry (LDF) and the occlusion time (60 vs...
April 19, 2018: BMC Neuroscience
https://www.readbyqxmd.com/read/29673322/the-spatio-temporal-dynamics-of-deviance-and-target-detection-in-the-passive-and-active-auditory-oddball-paradigm-a-sloreta-study
#17
Christoph Justen, Cornelia Herbert
BACKGROUND: Numerous studies have investigated the neural underpinnings of passive and active deviance and target detection in the well-known auditory oddball paradigm by means of event-related potentials (ERPs) or functional magnetic resonance imaging (fMRI). The present auditory oddball study investigates the spatio-temporal dynamics of passive versus active deviance and target detection by analyzing amplitude modulations of early and late ERPs while at the same time exploring the neural sources underling this modulation with standardized low-resolution brain electromagnetic tomography (sLORETA) ...
April 19, 2018: BMC Neuroscience
https://www.readbyqxmd.com/read/29661155/association-between-serum-levels-of-caspase-cleaved-cytokeratin-18-and-early-mortality-in-patients-with-severe-spontaneous-intracerebral-hemorrhage
#18
Leonardo Lorente, María M Martín, Antonia Pérez-Cejas, Luis Ramos, Mónica Argueso, Jordi Solé-Violán, Juan J Cáceres, Alejandro Jiménez, Victor García-Marín
BACKGROUND: Apoptotic changes after cerebral hemorrhage in brain samples of humans have been found. Caspase-cleaved cytokeratin (CCCK)-18 could be detected in the bloodstream during apoptosis. Higher circulating CCCK-18 levels have been associated with 6-month mortality in patients with basal ganglia hemorrhage. The aim of our study was to determine whether there is an association between serum CCCK-18 levels and early mortality of spontaneous intracerebral hemorrhage (SIH) patients. We performed an observational, prospective and multicentre study...
April 16, 2018: BMC Neuroscience
https://www.readbyqxmd.com/read/29649983/ncx-db-a-unified-resource-for-integrative-analysis-of-the-sodium-calcium-exchanger-super-family
#19
Katrin Bode, Damien M O'Halloran
Na+ /Ca2+ exchangers are low-affinity high-capacity transporters that mediate Ca2+ extrusion by coupling Ca2+ efflux to the influx of Na+ ions. The Na+ /Ca2+ exchangers form a super-family comprised of three branches each differing in ion-substrate selectivity: Na+ /Ca2+ exchangers (NCX), Na+ /Ca2+ /K+ exchangers, and Ca2+ /cation exchangers. Their primary function is to maintain Ca2+ homeostasis and play a particularly important role in excitable cells that experience transient Ca2+ fluxes. Research into the role and activity of Na+ /Ca2+ exchangers has focused extensively on the cardio-vascular system, however, growing evidence suggests that Na+ /Ca2+ exchangers play a key role in neuronal processes such as memory formation, learning, oligodendrocyte differentiation, neuroprotection during brain ischemia and axon guidance...
April 13, 2018: BMC Neuroscience
https://www.readbyqxmd.com/read/29649974/delayed-and-repeated-intranasal-delivery-of-bone-marrow-stromal-cells-increases-regeneration-and-functional-recovery-after-ischemic-stroke-in-mice
#20
Monica J Chau, Todd C Deveau, Xiaohuan Gu, Yo Sup Kim, Yun Xu, Shan Ping Yu, Ling Wei
BACKGROUND: Stroke is a leading cause of death and disability worldwide, yet there are limited treatments available. Intranasal administration is a novel non-invasive strategy to deliver cell therapy into the brain. Cells delivered via the intranasal route can migrate from the nasal mucosa to the ischemic infarct and show acute neuroprotection as well as functional benefits. However, there is little information about the regenerative effects of this transplantation method in the delayed phase of stroke...
April 12, 2018: BMC Neuroscience
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