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AMPA receptor GluA2 subunit defects are a cause of neurodevelopmental disorders.

2019

AMPA receptors (AMPARs) are tetrameric ligand-gated channels made up of combinations of GluA1-4 subunits encoded by GRIA1-4 genes. GluA2 has an especially important role because, following post-transcriptional editing at the Q607 site, it renders heteromultimeric AMPARs Ca2+-impermeable, with a linear relationship between current and trans-membrane voltage. Here, we report heterozygous de novo GRIA2 mutations in 28 unrelated patients with intellectual disability (ID) and neurodevelopmental abnormalities including autism spectrum disorder (ASD), Rett syndrome-like features, and seizures or developmental epileptic encephalopathy (DEE). In functional expression studies, mutations lead to a dec…

Male[SDV.GEN] Life Sciences [q-bio]/GeneticsIon channels in the nervous systemCohort Studiesfluids and secretionsLoss of Function MutationReceptorsAMPAAMPA receptorlcsh:ScienceChildreproductive and urinary physiologyAMPA receptor GluA2 neurodevelopmental disorders autism spectrum disorder glutamatergic synaptic transmission GRIA2neurodevelopmental disordersDevelopmental disordersQNeurodevelopmental disordersBrainMagnetic Resonance ImagingSettore MED/26 - NEUROLOGIAGluA2Child PreschoolFemaleAdultHeterozygoteAdolescentScienceautism spectrum disorderArticleYoung Adult[SDV.MHEP.PED] Life Sciences [q-bio]/Human health and pathology/PediatricsMESH: Intellectual Disability/genetics; Neurodevelopmental Disorders/genetics; Receptors AMPA/genetics; HeterozygoteIntellectual Disabilitymental disordersAdolescent; Adult; Brain; Child; Child Preschool; Cohort Studies; Female; Heterozygote; Humans; Infant; Intellectual Disability; Loss of Function Mutation; Magnetic Resonance Imaging; Male; Neurodevelopmental Disorders; Receptors AMPA; Young AdultHumansReceptors AMPAGRIA2PreschoolIon channel in the nervous system Developmental disorders Synaptic development NG sequencing[SDV.GEN]Life Sciences [q-bio]/Genetics[SDV.MHEP.PED]Life Sciences [q-bio]/Human health and pathology/Pediatricsglutamatergic synaptic transmission[SCCO.NEUR]Cognitive science/Neuroscience[SCCO.NEUR] Cognitive science/NeuroscienceInfantNG sequencingSynaptic developmentIon channel in the nervous systemNext-generation sequencinglcsh:Q
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Upgrade of the ALICE Experiment Letter Of Intent

2014

ALICE (A Large Ion Collider Experiment) is studying the physics of strongly interacting matter, and in particular the properties of the Quark–Gluon Plasma (QGP), using proton–proton, proton–nucleus and nucleus–nucleus collisions at the CERN LHC (Large Hadron Collider). The ALICE Collaboration is preparing a major upgrade of the experimental apparatus, planned for installation in the second long LHC shutdown in the years 2018–2019. These plans are presented in the ALICE Upgrade Letter of Intent, submitted to the LHCC (LHC experiments Committee) in September 2012. In order to fully exploit the physics reach of the LHC in this field, high- precision measurements of the heavy-flavour production…

Particle physicsNuclear and High Energy PhysicsCOLISÕES DE ÍONS PESADOS RELATIVÍSTICOSPhysics::Instrumentation and Detectors[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]7. Clean energy01 natural scienceslaw.inventionNuclear physicspp collisionALICElawpp collision; TeVheavy-ion experiments0103 physical sciencespp collisions; TeVTeV010306 general physicsColliderNuclear ExperimentGeneralLiterature_REFERENCE(e.g.dictionariesencyclopediasglossaries)ComputingMilieux_MISCELLANEOUSPhysicsALICE experiment LHC heavy-ion experimentsLarge Hadron ColliderLuminosity (scattering theory)010308 nuclear & particles physicsPhysicsDetectorHigh Energy Physics::PhenomenologyALICE experimentNATURAL SCIENCES. Physics.PRIRODNE ZNANOSTI. Fizika.Detector upgradeUpgradeQuark–gluon plasmaPhysics::Accelerator PhysicsupgradeHigh Energy Physics::ExperimentLHCALICE (propellant)upgrade ; ALICEEvent (particle physics)pp collisionsDetector performance
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