Decreased free d-aspartate levels are linked to enhanced d-aspartate oxidase activity in the dorsolateral prefrontal cortex of schizophrenia patients

NMDA receptor: Enzyme breaks down ion channel activator in schizophrenic brain Altered metabolism of an amino acid activator of ion channels in the brain could explain dysfunctional nerve signaling in schizophrenia. Researchers in Italy led by Alessandro Usiello from Ceinge Biotecnologie Avanzate an...

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Main Authors: Tommaso Nuzzo, Silvia Sacchi, Francesco Errico, Simona Keller, Orazio Palumbo, Ermanno Florio, Daniela Punzo, Francesco Napolitano, Massimiliano Copetti, Massimo Carella, Lorenzo Chiariotti, Alessandro Bertolino, Loredano Pollegioni, Alessandro Usiello
Format: Article
Language:English
Published: Nature Portfolio 2017-04-01
Series:npj Schizophrenia
Online Access:https://doi.org/10.1038/s41537-017-0015-7
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author Tommaso Nuzzo
Silvia Sacchi
Francesco Errico
Simona Keller
Orazio Palumbo
Ermanno Florio
Daniela Punzo
Francesco Napolitano
Massimiliano Copetti
Massimo Carella
Lorenzo Chiariotti
Alessandro Bertolino
Loredano Pollegioni
Alessandro Usiello
author_facet Tommaso Nuzzo
Silvia Sacchi
Francesco Errico
Simona Keller
Orazio Palumbo
Ermanno Florio
Daniela Punzo
Francesco Napolitano
Massimiliano Copetti
Massimo Carella
Lorenzo Chiariotti
Alessandro Bertolino
Loredano Pollegioni
Alessandro Usiello
author_sort Tommaso Nuzzo
collection DOAJ
description NMDA receptor: Enzyme breaks down ion channel activator in schizophrenic brain Altered metabolism of an amino acid activator of ion channels in the brain could explain dysfunctional nerve signaling in schizophrenia. Researchers in Italy led by Alessandro Usiello from Ceinge Biotecnologie Avanzate and Loredano Pollegioni from the University of Insubria measured the levels of two amino acids—D-aspartate and D-serine—in post-mortem tissues taken from two brain regions of patients with and without schizophrenia. Both amino acids activate the N-methyl D-aspartate receptor, which is known to be less active in people with schizophrenia. The researchers found a mild increase in D-serine levels but a major decrease in D-aspartate in the schizophrenia patients’ dorsolateral prefrontal cortex (DLPFC), a memory and reasoning part of the brain, but not in the hippocampus. They also documented a greater activity of the enzyme responsible for D-aspartate breakdown in the DLPFC.
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spelling doaj.art-a86308ddf58444f9aee77aabea30e6752023-12-03T08:22:27ZengNature Portfolionpj Schizophrenia2334-265X2017-04-013111010.1038/s41537-017-0015-7Decreased free d-aspartate levels are linked to enhanced d-aspartate oxidase activity in the dorsolateral prefrontal cortex of schizophrenia patientsTommaso Nuzzo0Silvia Sacchi1Francesco Errico2Simona Keller3Orazio Palumbo4Ermanno Florio5Daniela Punzo6Francesco Napolitano7Massimiliano Copetti8Massimo Carella9Lorenzo Chiariotti10Alessandro Bertolino11Loredano Pollegioni12Alessandro Usiello13Laboratory of Behavioral Neuroscience, Ceinge Biotecnologie AvanzateDepartment of Biotechnology and Life Sciences, University of InsubriaLaboratory of Behavioral Neuroscience, Ceinge Biotecnologie AvanzateDepartment of Molecular Medicine and Medical Biotechnology, University of Naples “Federico II”Medical Genetics Unit, IRCCS Casa Sollievo della SofferenzaDepartment of Molecular Medicine and Medical Biotechnology, University of Naples “Federico II”Laboratory of Behavioral Neuroscience, Ceinge Biotecnologie AvanzateLaboratory of Behavioral Neuroscience, Ceinge Biotecnologie AvanzateUnit of Biostatistics, IRCCS Casa Sollievo della SofferenzaMedical Genetics Unit, IRCCS Casa Sollievo della SofferenzaDepartment of Molecular Medicine and Medical Biotechnology, University of Naples “Federico II”Department of Basic Medical Science, Neuroscience, and Sense Organs, University of Bari “Aldo Moro”Department of Biotechnology and Life Sciences, University of InsubriaLaboratory of Behavioral Neuroscience, Ceinge Biotecnologie AvanzateNMDA receptor: Enzyme breaks down ion channel activator in schizophrenic brain Altered metabolism of an amino acid activator of ion channels in the brain could explain dysfunctional nerve signaling in schizophrenia. Researchers in Italy led by Alessandro Usiello from Ceinge Biotecnologie Avanzate and Loredano Pollegioni from the University of Insubria measured the levels of two amino acids—D-aspartate and D-serine—in post-mortem tissues taken from two brain regions of patients with and without schizophrenia. Both amino acids activate the N-methyl D-aspartate receptor, which is known to be less active in people with schizophrenia. The researchers found a mild increase in D-serine levels but a major decrease in D-aspartate in the schizophrenia patients’ dorsolateral prefrontal cortex (DLPFC), a memory and reasoning part of the brain, but not in the hippocampus. They also documented a greater activity of the enzyme responsible for D-aspartate breakdown in the DLPFC.https://doi.org/10.1038/s41537-017-0015-7
spellingShingle Tommaso Nuzzo
Silvia Sacchi
Francesco Errico
Simona Keller
Orazio Palumbo
Ermanno Florio
Daniela Punzo
Francesco Napolitano
Massimiliano Copetti
Massimo Carella
Lorenzo Chiariotti
Alessandro Bertolino
Loredano Pollegioni
Alessandro Usiello
Decreased free d-aspartate levels are linked to enhanced d-aspartate oxidase activity in the dorsolateral prefrontal cortex of schizophrenia patients
npj Schizophrenia
title Decreased free d-aspartate levels are linked to enhanced d-aspartate oxidase activity in the dorsolateral prefrontal cortex of schizophrenia patients
title_full Decreased free d-aspartate levels are linked to enhanced d-aspartate oxidase activity in the dorsolateral prefrontal cortex of schizophrenia patients
title_fullStr Decreased free d-aspartate levels are linked to enhanced d-aspartate oxidase activity in the dorsolateral prefrontal cortex of schizophrenia patients
title_full_unstemmed Decreased free d-aspartate levels are linked to enhanced d-aspartate oxidase activity in the dorsolateral prefrontal cortex of schizophrenia patients
title_short Decreased free d-aspartate levels are linked to enhanced d-aspartate oxidase activity in the dorsolateral prefrontal cortex of schizophrenia patients
title_sort decreased free d aspartate levels are linked to enhanced d aspartate oxidase activity in the dorsolateral prefrontal cortex of schizophrenia patients
url https://doi.org/10.1038/s41537-017-0015-7
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