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BMC Neuroscience

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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
#1
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
#2
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
#3
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
https://www.readbyqxmd.com/read/29649969/magnetic-resonance-imaging-for-assessment-of-cerebrovascular-reactivity-and-its-relationship-to-cognition-a-systematic-review
#4
Sarah J Catchlove, Andrew Pipingas, Matthew E Hughes, Helen Macpherson
BACKGROUND: Cerebrovascular reactivity (CVR) refers to the responsiveness of cerebral vasculature to vasoactive stimuli. CVR is an indicator of brain health and can be assessed using vasodilatory techniques and magnetic resonance imaging (MRI). Using such approaches, some researchers have explored the relationship between CVR and cognition; here we systematically review this work. RESULTS: We extracted information pertaining to: (1) study location and design, participant characteristics, sample sizes, (2) design of vascular challenge, end-tidal CO 2 (etCO 2 ) concentrations (if applicable), (3) MRI protocol, (4) cognitive assessment, (5) CVR values, and outcomes of statistical analyses with cognitive tests...
April 12, 2018: BMC Neuroscience
https://www.readbyqxmd.com/read/29642849/impact-of-brain-arousal-and-time-on-task-on-autonomic-nervous-system-activity-in-the-wake-sleep-transition
#5
Jue Huang, Christine Ulke, Christian Sander, Philippe Jawinski, Janek Spada, Ulrich Hegerl, Tilman Hensch
BACKGROUND: Autonomic nervous system (ANS) activity has been shown to vary with the state of brain arousal. In a previous study, this association of ANS activity with distinct states of brain arousal was demonstrated using 15-min EEG data, but without directly controlling for possible time-on-task effects. In the current study we examine ANS-activity in fine-graded EEG-vigilance stages (indicating states of brain arousal) during two conditions of a 2-h oddball task while controlling for time-on-task...
April 11, 2018: BMC Neuroscience
https://www.readbyqxmd.com/read/29614969/27-hydroxycholesterol-increases-%C3%AE-synuclein-protein-levels-through-proteasomal-inhibition-in-human-dopaminergic-neurons
#6
Jared Schommer, Gurdeep Marwarha, Trevor Schommer, Travis Flick, Jonah Lund, Othman Ghribi
BACKGROUND: Accumulation of the α-synuclein (α-syn) protein is a hallmark of a group of brain disorders collectively known as synucleinopathies. The mechanisms responsible for α-syn accumulation are not well understood. Several studies suggest a link between synucleinopathies and the cholesterol metabolite 27-hydroxycholesterol (27-OHC). 27-OHC is the major cholesterol metabolite in the blood that crosses the blood brain barrier, and its levels can increase following hypercholesterolemia, aging, and oxidative stress, which are all factors for increased synucleinopathy risk...
April 3, 2018: BMC Neuroscience
https://www.readbyqxmd.com/read/29571287/chronic-oxycodone-induces-axonal-degeneration-in-rat-brain
#7
Ruping Fan, Lisa M Schrott, Thomas Arnold, Stephen Snelling, Meghana Rao, Derrel Graham, Angela Cornelius, Nadejda L Korneeva
BACKGROUND: Chronic opioid therapy for non-malignant pain conditions has significantly increased over the last 15 years. Recently, the correlation between opioid analgesics and alternations in brain structure, such as leukoencephalopathy, axon demyelination, and white matter lesions, has been demonstrated in patients with a history of long-term use of prescription opioids. The exact mechanisms underlying the neurotoxic effect of opioids on the central nervous system are still not fully understood...
March 23, 2018: BMC Neuroscience
https://www.readbyqxmd.com/read/29529995/dissecting-the-pathobiology-of-altered-mri-signal-in-amyotrophic-lateral-sclerosis-a-post-mortem-whole-brain-sampling-strategy-for-the-integration-of-ultra-high-field-mri-and-quantitative-neuropathology
#8
Menuka Pallebage-Gamarallage, Sean Foxley, Ricarda A L Menke, Istvan N Huszar, Mark Jenkinson, Benjamin C Tendler, Chaoyue Wang, Saad Jbabdi, Martin R Turner, Karla L Miller, Olaf Ansorge
BACKGROUND: Amyotrophic lateral sclerosis (ALS) is a clinically and histopathologically heterogeneous neurodegenerative disorder, in which therapy is hindered by the rapid progression of disease and lack of biomarkers. Magnetic resonance imaging (MRI) has demonstrated its potential for detecting the pathological signature and tracking disease progression in ALS. However, the microstructural and molecular pathological substrate is poorly understood and generally defined histologically...
March 13, 2018: BMC Neuroscience
https://www.readbyqxmd.com/read/29523078/axontracer-a-novel-imagej-plugin-for-automated-quantification-of-axon-regeneration-in-spinal-cord-tissue
#9
Akash Patel, Zhongzhi Li, Philip Canete, Hans Strobl, Jennifer Dulin, Ken Kadoya, Dan Gibbs, Gunnar H D Poplawski
BACKGROUND: Quantification of axon regeneration in spinal cord tissue sections is a fundamental step to adequately determine if an applied treatment leads to an anatomical benefit following spinal cord injury. Recent advances have led to the development of therapies that can promote regeneration of thousands of injured axons in vivo. Axon labeling methods and in the application of regeneration-enabling stem cell grafts have increased the number of detectable regenerating axons by orders of magnitudes...
March 9, 2018: BMC Neuroscience
https://www.readbyqxmd.com/read/29523076/normal-sleep-bouts-are-not-essential-for-c-elegans-survival-and-foxo-is-important-for-compensatory-changes-in-sleep
#10
Heather L Bennett, Yulia Khoruzhik, Dustin Hayden, Huiyan Huang, Jarred Sanders, Melissa B Walsh, David Biron, Anne C Hart
BACKGROUND: Sleep deprivation impairs learning, causes stress, and can lead to death. Notch and JNK-1 pathways impact C. elegans sleep in complex ways; these have been hypothesized to involve compensatory sleep. C. elegans DAF-16, a FoxO transcription factor, is required for homeostatic response to decreased sleep and DAF-16 loss decreases survival after sleep bout deprivation. Here, we investigate connections between these pathways and the requirement for sleep after mechanical stress...
March 9, 2018: BMC Neuroscience
https://www.readbyqxmd.com/read/29523072/neuroprotective-dobutamine-treatment-upregulates-superoxide-dismutase-3-anti-oxidant-and-survival-genes-and-attenuates-genes-mediating-inflammation
#11
Tina Markus, David Ley, Stefan R Hansson, Tadeusz Wieloch, Karsten Ruscher
BACKGROUND: Labor subjects the fetus to an hypoxic episode and concomitant adrenomodullary catecholamine surge that may provide protection against the hypoxic insult. The beta1-adrenergic agonist dobutamine protects against hypoxia/aglycemia induced neuronal damage. We aimed to identify the associated protective biological processes involved. RESULTS: Hippocampal slices from 6 days old mice showed significant changes of gene expression comparing slices with or without dobutamine (50 mM) in the following two experimental paradigms: (1) control conditions versus lipopolysacharide (LPS) stimulation and (2) oxygen-glucose deprivation (OGD), versus combined LPS/OGD...
March 9, 2018: BMC Neuroscience
https://www.readbyqxmd.com/read/29502536/metabolomics-analysis-of-serum-in-a-rat-heroin-self-administration-model-undergoing-reinforcement-based-on-1-h-nuclear-magnetic-resonance-spectra
#12
Tingting Ning, Changlong Leng, Lin Chen, Baomiao Ma, Xiaokang Gong
BACKGROUND: Understanding the process of relapse to abused drugs and ultimately developing treatments that can reduce the incidence of relapse remains the primary goal for the study of substance dependence. Therefore, exploring the metabolite characteristics during the relapse stage is valuable. METHODS: A heroin self-administered rat model was employed, and analysis of the1 H-nuclear magnetic resonance-based metabolomics was performed to investigate the characteristic metabolite profile upon reintroduction to the drug after abstinence...
March 5, 2018: BMC Neuroscience
https://www.readbyqxmd.com/read/29471781/solid-lipid-curcumin-particles-provide-greater-anti-amyloid-anti-inflammatory-and-neuroprotective-effects-than-curcumin-in-the-5xfad-mouse-model-of-alzheimer-s-disease
#13
Panchanan Maiti, Leela Paladugu, Gary L Dunbar
BACKGROUND: Neuroinflammation and the presence of amyloid beta protein (Aβ) and neurofibrillary tangles are key pathologies in Alzheimer's disease (AD). As a potent anti-amyloid and anti-inflammatory natural polyphenol, curcumin (Cur) could be potential therapies for AD. Unfortunately, poor solubility, instability in physiological fluids, and low bioavailability limit its clinical utility. Recently, different lipid modifications in the formulae of Cur have been developed that would enhance its therapeutic potential...
February 23, 2018: BMC Neuroscience
https://www.readbyqxmd.com/read/29471788/modelling-physiological-and-pathological-conditions-to-study-pericyte-biology-in-brain-function-and-dysfunction
#14
Justin Rustenhoven, Leon C Smyth, Deidre Jansson, Patrick Schweder, Miranda Aalderink, Emma L Scotter, Edward W Mee, Richard L M Faull, Thomas I-H Park, Mike Dragunow
BACKGROUND: Brain pericytes ensheathe the endothelium and contribute to formation and maintenance of the blood-brain-barrier. Additionally, pericytes are involved in several aspects of the CNS immune response including scarring, adhesion molecule expression, chemokine secretion, and phagocytosis. In vitro cultures are routinely used to investigate these functions of brain pericytes, however, these are highly plastic cells and can display differing phenotypes and functional responses depending on their culture conditions...
February 22, 2018: BMC Neuroscience
https://www.readbyqxmd.com/read/29463209/characterisation-of-zika-virus-infection-in-primary-human-astrocytes
#15
Michal Stefanik, Petra Formanova, Tomas Bily, Marie Vancova, Ludek Eyer, Martin Palus, Jiri Salat, Carla Torres Braconi, Paolo M de A Zanotto, Ernest A Gould, Daniel Ruzek
BACKGROUND: The recent Zika virus (ZIKV) outbreak has linked ZIKV with microcephaly and other central nervous system pathologies in humans. Astrocytes are among the first cells to respond to ZIKV infection in the brain and are also targets for virus infection. In this study, we investigated the interaction between ZIKV and primary human brain cortical astrocytes (HBCA). RESULTS: HBCAs were highly sensitive to representatives of both Asian and African ZIKV lineages and produced high viral yields...
February 20, 2018: BMC Neuroscience
https://www.readbyqxmd.com/read/29390963/evaluation-of-reference-genes-for-gene-expression-studies-in-mouse-and-n2a-cell-ischemic-stroke-models-using-quantitative-real-time-pcr
#16
Yingbo Kang, Zhuomin Wu, De Cai, Binger Lu
BACKGROUND: Real-time reverse transcription quantitative polymerase chain reaction (RT-qPCR) is a critical tool for evaluating the levels of mRNA transcribed from genes. Reliable RT-qPCR results largely depend on normalization to suitable reference genes. Middle cerebral artery occlusion (MCAO) and oxygen-glucose deprivation/reoxygenation (OGD/R) are models that are commonly used to study ischemic stroke. However, the proper reference genes for RNA analysis in these two models have not yet been determined...
February 1, 2018: BMC Neuroscience
https://www.readbyqxmd.com/read/29370749/intraventricular-infusion-of-clusterin-ameliorated-cognition-and-pathology-in-tg6799-model-of-alzheimer-s-disease
#17
Xue-Mei Qi, Cheng Wang, Xing-Kun Chu, Gen Li, Jian-Fang Ma
BACKGROUND: Alzheimer's disease (AD) is characterized by the deposition of amyloid-β (Aβ) in brain parenchyma and cerebral blood vessels as cerebral amyloid angiopathy (CAA). Clusterin, a chaperon protein associated with Aβ aggregation, toxicity and transport through blood-brain barrier, may play a key role in the development of AD. Recently, clusterin peptide D-[113-122] was shown to mimic clusterin's function and exerted therapeutic effect in atherosclerosis. In this study, we investigated whether this clusterin peptide also affected (Aβ) deposition in AD transgenic mouse...
January 25, 2018: BMC Neuroscience
https://www.readbyqxmd.com/read/29338692/emerging-roles-for-microrna-in-the-regulation-of-drosophila-circadian-clock
#18
REVIEW
Yongbo Xue, Yong Zhang
BACKGROUND: The circadian clock, which operates within an approximately 24-h period, is closely linked to the survival and fitness of almost all living organisms. The circadian clock is generated through a negative transcription-translation feedback loop. microRNAs (miRNAs) are small non-coding RNAs comprised of approximately 22 nucleotides that post-transcriptionally regulate target mRNA by either inducing mRNA degradation or inhibiting translation. RESULTS: In recent years, miRNAs have been found to play important roles in the regulation of the circadian clock, especially in Drosophila...
January 16, 2018: BMC Neuroscience
https://www.readbyqxmd.com/read/29281977/n-n-disubstituted-azines-attenuate-lps-mediated-neuroinflammation-in-microglia-and-neuronal-apoptosis-via-inhibiting-mapk-signaling-pathways
#19
Lalita Subedi, Oh Wook Kwon, Chaeho Pak, Goeun Lee, Kangwoo Lee, Hakwon Kim, Sun Yeou Kim
BACKGROUND: Activated microglia interact with astrocytes and neuronal cells to induce neuroinflammation, which can contribute to the pathogenesis and progression of Alzheimer's and Parkinson's disease. To identify the most effective anti-neuroinflammatory agent, we designed and synthesized a family of 13 new azine derivatives and investigated their anti-neuroinflammatory activities in LPS-activated BV-2 microglial cells. RESULTS: Out of 13 derivatives, compound 3 [4,4'-(1E,1'E,3E,3'E)-3,3'-(hydrazine-1,2-diylidene) bis-(prop-1-ene-1-yl-3-ylidene) bis-(2-methoxyphenol)] exhibited excellent anti-neuroinflammatory activities (IC50  = 12...
December 28, 2017: BMC Neuroscience
https://www.readbyqxmd.com/read/29281967/the-effects-of-vitamin-d-administration-on-brain-inflammatory-markers-in-high-fat-diet-induced-obese-rats
#20
Mahdieh Abbasalizad Farhangi, Mehran Mesgari-Abbasi, Ghazaleh Nameni, Ghazaleh Hajiluian, Parviz Shahabi
BACKGROUND: Obesity induced brain inflammation is associated with cognitive disorders. We aimed to investigate the influence of vitamin D on hypothalamus and hippocampus inflammatory response in high-fat diet induced obese rats. METHODS: In the beginning of the study, 40 rats were divided into two groups: control diet and high fat diet (HFD) for 16 weeks; then each group subdivided into two groups including: N, ND + vitamin D, HFD and HFD + vitamin D. Vitamin D supplementation was done for 5 weeks at 500 IU/kg dosage...
December 28, 2017: BMC Neuroscience
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