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https://www.readbyqxmd.com/read/28527331/analysis-of-zip-zrt-irt-related-protein-transporter-gene-expression-in-murine-neural-stem-progenitor-cells
#1
Mayu Nishikawa, Hideki Mori, Masayuki Hara
Zinc plays important roles for brain development. Zrt-, Irt-related protein (ZIP) is a major transporter family to regulate the intracellular zinc levels. Neural stem/progenitor cells (NSPCs) are more sensitive than their differentiated progeny (neural/glial cells) to zinc in vitro (Nishikawa et al., 2015). We analyzed relative gene expression of 14 different ZIPs in murine NSPCs and differentiated cells by real-time polymerase chain reaction technique. Expression of Zip4 and that of Zip12 drastically increased, while that of Zip8 clearly decreased after differentiation of NSPCs...
May 11, 2017: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/28527212/apolipoprotein-e4-gender-body-mass-index-inflammation-insulin-resistance-and-air-pollution-interactions-recipe-for-alzheimer-s-disease-development-in-mexico-city-young-females
#2
Lilian Calderón-Garcidueñas, Suzanne M de la Monte
Given the epidemiological trends of increasing Alzheimer's disease (AD) and growing evidence that exposure and lifestyle factors contribute to AD risk and pathogenesis, attention should be paid to variables such as air pollution, in order to reduce rates of cognitive decline and dementia. Exposure to fine particulate matter (PM2.5) and ozone (O3) above the US EPA standards is associated with AD risk. Mexico City children experienced pre- and postnatal high exposures to PM2.5, O3, combustion-derived iron-rich nanoparticles, metals, polycyclic aromatic hydrocarbons, and endotoxins...
May 17, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28527207/beyond-a-differential-diagnosis-cognitive-and-morphometric-decoding-of-information-processing-speed-in-senior-adults-with-dsm-5-mild-neurocognitive-disorders
#3
Hanna Lu, Sandra S M Chan, Ada W T Fung, Linda C W Lam
BACKGROUND: Processing speed has been highlighted as a diagnostic item for neurocognitive disorders (NCD) in DSM-5. The utility of information processing speed (IPS) enclosed with multiscale constructs in the diagnosis of NCD warrants exploration. OBJECTIVE: We aimed to investigate the IPS with two types of measurements in the patients with NCD due to vascular disease (NCD-vascular) and NCD due to Alzheimer's disease (NCD-AD), and examine the associations between IPS measures and morphometric features...
May 13, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28527062/the-prokineticin-system-an-interface-between-neural-inflammation-and-pain
#4
Silvia Franchi, Paola Sacerdote, Alberto Panerai
Prokineticins (PK) 1 and 2 belong to a new family of chemokines capable to interact with two different G coupled receptors: Prokineticin receptor (PKR)1 and 2. Both prokineticins and their receptors are widely distributed in different tissues and regulate several biological functions. In particular, a role of the PK system in inflammation and nociception has been established. PKRs are expressed in regions of the nervous system associated with pain and in primary sensitive neurons they colocalize with transient potential receptor vanilloid-TRPV1 providing an anatomical interaction in nociceptor sensitization...
May 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28527057/behavioral-therapy-emotion-and-pain-a-common-anatomical-background
#5
Lauren A-M Dahlke, Jeffrey J Sable, Frank Andrasik
Emotion and pain are closely intertwined in the brain, as the human experience of pain includes both affective and nociceptive components. Although each of these components relies on a different system in the brain, the two systems converge on the anterior cingulate and insular cortices, which interact with the prefrontal cortex and other frontal structures to influence behavior. Both emotional and physical pain elicit activity in these common areas, and conditions that affect one system (e.g., drugs, neural plasticity) may affect the function of the other-ultimately altering the experience of pain...
May 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28526931/reduced-amygdala-reactivity-and-impaired-working-memory-during-dissociation-in-borderline-personality-disorder
#6
Annegret Krause-Utz, Dorina Winter, Friederike Schriner, Chui-De Chiu, Stefanie Lis, Philip Spinhoven, Martin Bohus, Christian Schmahl, Bernet M Elzinga
Affective hyper-reactivity and impaired cognitive control of emotional material are core features of borderline personality disorder (BPD). A high percentage of individuals with BPD experience stress-related dissociation, including emotional numbing and memory disruptions. So far little is known about how dissociation influences the neural processing of emotional material in the context of a working memory task in BPD. We aimed to investigate whole-brain activity and amygdala functional connectivity (FC) during an Emotional Working Memory Task (EWMT) after dissociation induction in un-medicated BPD patients compared to healthy controls (HC)...
May 19, 2017: European Archives of Psychiatry and Clinical Neuroscience
https://www.readbyqxmd.com/read/28526877/magnetospinography-visualizes-electrophysiological-activity-in-the-cervical-spinal-cord
#7
Satoshi Sumiya, Shigenori Kawabata, Yuko Hoshino, Yoshiaki Adachi, Kensuke Sekihara, Shoji Tomizawa, Masaki Tomori, Senichi Ishii, Kyohei Sakaki, Dai Ukegawa, Shuta Ushio, Taishi Watanabe, Atsushi Okawa
Diagnosis of nervous system disease is greatly aided by functional assessments and imaging techniques that localize neural activity abnormalities. Electrophysiological methods are helpful but often insufficient to locate neural lesions precisely. One proposed noninvasive alternative is magnetoneurography (MNG); we have developed MNG of the spinal cord (magnetospinography, MSG). Using a 120-channel superconducting quantum interference device biomagnetometer system in a magnetically shielded room, cervical spinal cord evoked magnetic fields (SCEFs) were recorded after stimulation of the lower thoracic cord in healthy subjects and a patient with cervical spondylotic myelopathy and after median nerve stimulation in healthy subjects...
May 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28526871/electro-tactile-stimulation-enhances-cochlear-implant-speech-recognition-in-noise
#8
Juan Huang, Benjamin Sheffield, Payton Lin, Fan-Gang Zeng
For cochlear implant users, combined electro-acoustic stimulation (EAS) significantly improves the performance. However, there are many more users who do not have any functional residual acoustic hearing at low frequencies. Because tactile sensation also operates in the same low frequencies (<500 Hz) as the acoustic hearing in EAS, we propose electro-tactile stimulation (ETS) to improve cochlear implant performance. In ten cochlear implant users, a tactile aid was applied to the index finger that converted voice fundamental frequency into tactile vibrations...
May 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28526811/proteomic-analysis-of-cerebrospinal-fluid-from-children-with-central-nervous-system-tumors-identifies-candidate-proteins-relating-to-tumor-metastatic-spread
#9
Filippo Spreafico, Italia Bongarzone, Sara Pizzamiglio, Ruben Magni, Elena Taverna, Maida De Bortoli, Chiara M Ciniselli, Elena Barzanò, Veronica Biassoni, Alessandra Luchini, Lance A Liotta, Weidong Zhou, Michele Signore, Paolo Verderio, Maura Massimino
Central nervous system (CNS) tumors are the most common solid tumors in childhood. Since the sensitivity of combined cerebrospinal fluid (CSF) cytology and radiological neuroimaging in detecting meningeal metastases remains relatively low, we sought to characterize the CSF proteome of patients with CSF tumors to identify biomarkers predictive of metastatic spread. CSF samples from 27 children with brain tumors and 13 controls (extra-CNS non-Hodgkin lymphoma) were processed using core-shell hydrogel nanoparticles, and analyzed with reverse-phase liquid chromatography/electrospray tandem mass spectrometry (LC-MS/MS)...
May 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/28526750/pdgf-controls-contact-inhibition-of-locomotion-by-regulating-n-cadherin-during-neural-crest-migration
#10
Isabel Bahm, Elias H Barriga, Antonina Frolov, Eric Theveneau, Paul Frankel, Roberto Mayor
A fundamental property of neural crest (NC) migration is Contact inhibition of locomotion (CIL), a process by which cells change their direction of migration upon cell contact. CIL has been proven to be essential for NC migration in amphibian and zebrafish by controlling cell polarity in a cell contact dependent manner. Cell contact during CIL requires the participation of the cell adhesion molecule N-cadherin, which starts to be expressed by NC cells as a consequence of the switch between E- and N-cadherins during epithelial to mesenchymal transition (EMT)...
May 19, 2017: Development
https://www.readbyqxmd.com/read/28526621/electrophysiological-signatures-of-phonological-and-semantic-maintenance-in-sentence-repetition
#11
Jed A Meltzer, Aneta Kielar, Lilia Panamsky, Kira A Links, Tiffany Deschamps, Rosie C Leigh
Verbal short-term memory comprises resources for phonological rehearsal, which have been characterized anatomically, and for maintenance of semantic information, which are less understood. Sentence repetition tasks tap both processes interactively. To distinguish brain activity involved in phonological vs. semantic maintenance, we recorded magnetoencephalography during a sentence repetition task, incorporating three manipulations emphasizing one mechanism over the other. Participants heard sentences or word lists and attempted to repeat them verbatim after a 5-second delay...
May 16, 2017: NeuroImage
https://www.readbyqxmd.com/read/28526620/evidence-for-cortical-structural-plasticity-in-humans-after-a-day-of-waking-and-sleep-deprivation
#12
Torbjørn Elvsåshagen, Nathalia Zak, Linn B Norbom, Per Ø Pedersen, Sophia H Quraishi, Atle Bjørnerud, Dag Alnæs, Nhat Trung Doan, Ulrik F Malt, Inge R Groote, Lars T Westlye
Sleep is an evolutionarily conserved process required for human health and functioning. Insufficient sleep causes impairments across cognitive domains, and sleep deprivation can have rapid antidepressive effects in mood disorders. However, the neurobiological effects of waking and sleep are not well understood. Recently, animal studies indicated that waking and sleep are associated with substantial cortical structural plasticity. Here, we hypothesized that structural plasticity can be observed after a day of waking and sleep deprivation in the human cerebral cortex...
May 16, 2017: NeuroImage
https://www.readbyqxmd.com/read/28526578/barrel-cortex-what-is-it-good-for
#13
REVIEW
Maik C Stüttgen, Cornelius Schwarz
The rodent whisker system, with barrel cortex as its most prominent structure, has evolved into a powerful model system to study sensory processing. However, despite the vast amount of data collected on barrel cortex neural activity patterns, as well as its circuitry and plasticity, the precise behavioral and cognitive operations for which this structure is needed are still elusive. Proposed functions of barrel cortex include detection, discrimination, coordination of whisker movements during exploratory locomotion or active touch, and associative learning...
May 16, 2017: Neuroscience
https://www.readbyqxmd.com/read/28526555/modeling-psychomotor-retardation-using-ipscs-from-mct8-deficient-patients-indicates-a-prominent-role-for-the-blood-brain-barrier
#14
Gad D Vatine, Abraham Al-Ahmad, Bianca K Barriga, Soshana Svendsen, Ariel Salim, Leslie Garcia, Veronica J Garcia, Ritchie Ho, Nur Yucer, Tongcheng Qian, Ryan G Lim, Jie Wu, Leslie M Thompson, Weston R Spivia, Zhaohui Chen, Jennifer Van Eyk, Sean P Palecek, Samuel Refetoff, Eric V Shusta, Clive N Svendsen
Inactivating mutations in the thyroid hormone (TH) transporter Monocarboxylate transporter 8 (MCT8) cause severe psychomotor retardation in children. Animal models do not reflect the biology of the human disease. Using patient-specific induced pluripotent stem cells (iPSCs), we generated MCT8-deficient neural cells that showed normal TH-dependent neuronal properties and maturation. However, the blood-brain barrier (BBB) controls TH entry into the brain, and reduced TH availability to neural cells could instead underlie the diseased phenotype...
May 8, 2017: Cell Stem Cell
https://www.readbyqxmd.com/read/28526553/hypothalamic-regulation-of-the-sleep-wake-cycle
#15
REVIEW
Daisuke Ono, Akihiro Yamanaka
Sleep is one of the most important physiological functions in mammals. It is regulated by not only homeostatic regulation but also circadian clock. Several neuropeptide-producing neurons located in the hypothalamus are implicated in the regulation of sleep/wakefulness. Among them, orexin/hypocretin-producing neurons (orexin neurons) are a crucial component for maintenance of wakefulness, because lack of orexin function results in narcolepsy, which is a sleep disorder. Recent findings have identified substances that excite or inhibit neural activity of orexin neurons...
May 16, 2017: Neuroscience Research
https://www.readbyqxmd.com/read/28526320/mercury-exposure-induces-cytoskeleton-disruption-and-loss-of-renal-function-through-epigenetic-modulation-of-mmp9-expression
#16
Hafizurrahman Khan, Radha Dutt Singh, Ratnakar Tiwari, Siddhartha Gangopadhyay, Somendu Kumar Roy, Dhirendra Singh, Vikas Srivastava
Mercury is one of the major heavy metal pollutants occurring in elemental, inorganic and organic forms. Due to ban on most inorganic mercury containing products, human exposure to mercury generally occurs as methylmercury (MeHg) by consumption of contaminated fish and other sea food. Animal and epidemiological studies indicate that MeHg affects neural and renal function. Our study is focused on nephrotoxic potential of MeHg. In this study, we have shown for the first time how MeHg could epigenetically modulate matrix metalloproteinase 9(MMP9) to promote nephrotoxicity using an animal model of sub chronic MeHg exposure...
May 16, 2017: Toxicology
https://www.readbyqxmd.com/read/28526212/3d-deeply-supervised-network-for-automated-segmentation-of-volumetric-medical-images
#17
Qi Dou, Lequan Yu, Hao Chen, Yueming Jin, Xin Yang, Jing Qin, Pheng-Ann Heng
While deep convolutional neural networks (CNNs) have achieved remarkable success in 2D medical image segmentation, it is still a difficult task for CNNs to segment important organs or structures from 3D medical images owing to several mutually affected challenges, including the complicated anatomical environments in volumetric images, optimization difficulties of 3D networks and inadequacy of training samples. In this paper, we present a novel and efficient 3D fully convolutional network equipped with a 3D deep supervision mechanism to comprehensively address these challenges; we call it 3D DSN...
May 8, 2017: Medical Image Analysis
https://www.readbyqxmd.com/read/28525960/the-behavioral-and-neural-signatures-of-distinct-conceptions-of-fairness
#18
Laura Niemi, Emily Wasserman, Liane Young
Adhering to standard procedures (impartiality), returning favors (reciprocity), or giving based on individuals' needs (charity) may all be considered moral and/or fair ways to allocate resources. However, these allocation behaviors may be perceived as differently motivated, and their moral evaluation may make different demands on theory of mind (ToM)-the capacity to process information about mental states, including motives. In Studies 1-2, we examined participants' moral judgments of allocations based on (a) impartiality, (b) reciprocity, (c) charity, and (d) unspecified criteria as depicted in vignettes, as well as participants' perceptions of allocators' motivations...
May 19, 2017: Social Neuroscience
https://www.readbyqxmd.com/read/28525954/construction-of-various-%C3%AE-34-5-deleted-fluorescent-expressing-oncolytic-herpes-simplex-type-1-ohsv-for-generation-and-isolation-of-hsv-based-vectors
#19
REVIEW
Shahriyar Abdoli, Farzin Roohvand, Ladan Teimoori-Toolabi, Mohammad Ali Shokrgozar, Mina Bahrololoumi, Kayhan Azadmanesh
Background: Oncolytic herpes simplex virus (oHSV)-based vectors lacking γ34.5 gene, are considered as ideal templates to construct efficient vectors for (targeted) cancer gene therapy. Herein, we reported the construction of three single/dually-flourescence labeled and γ34.5-deleted, recombinant HSV-1 vectors for rapid generation and easy selection/isolation of different HSV-Based vectors. Methods: Generation of recombinant viruses was performed with conventional homologous recombination methods using green fluorescent protein (GFP) and BleCherry harboring shuttle vectors...
July 2017: Iranian Biomedical Journal
https://www.readbyqxmd.com/read/28525839/discovery-of-efficient-stimulators-for-adult-hippocampal-neurogenesis-based-on-scaffolds-in-dragon-s-blood
#20
Jian-Hua Liang, Liang Yang, Si Wu, Si-Si Liu, Mark Cushman, Jing Tian, Nuo-Min Li, Qing-Hu Yang, He-Ao Zhang, Yun-Jie Qiu, Lin Xiang, Cong-Xuan Ma, Xue-Meng Li, Hong Qing
Reduction of hippocampal neurogenesis caused by aging and neurological disorders would impair neural circuits and result in memory loss. A new lead compound (N-trans-3',4'-methylenedioxystilben-4-yl acetamide 27) has been discovered to efficiently stimulate adult rats' neurogenesis. In-depth structure-activity relationship studies proved the necessity of a stilbene scaffold that is absent in highly cytotoxic analogs such as chalcones and heteroaryl rings and inactive analogs such as diphenyl acetylene and diphenyl ethane, and validated the importance of an NH in the carboxamide and a methylenedioxy substituent on the benzene ring...
May 10, 2017: European Journal of Medicinal Chemistry
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