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Measurement of lactate levels in postmortem brain, iPSCs, and animal models of schizophrenia
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Measurement of lactate levels in postmortem brain, iPSCs, and animal models of schizophrenia
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Journal Article
Measurement of lactate levels in postmortem brain, iPSCs, and animal models of schizophrenia
2019
Overview
Converging evidence suggests bioenergetic defects contribute to the pathophysiology of schizophrenia and may underlie cognitive dysfunction. The transport and metabolism of lactate energetically couples astrocytes and neurons and supports brain bioenergetics. We examined the concentration of lactate in postmortem brain (dorsolateral prefrontal cortex) in subjects with schizophrenia, in two animal models of schizophrenia, the GluN1 knockdown mouse model and mutant disrupted in schizophrenia 1 (DISC1) mouse model, as well as inducible pluripotent stem cells (iPSCs) from a schizophrenia subject with the DISC1 mutation. We found increased lactate in the dorsolateral prefrontal cortex (p = 0.043, n = 16/group) in schizophrenia, as well as in frontal cortical neurons differentiated from a subject with schizophrenia with the DISC1 mutation (p = 0.032). We also found a decrease in lactate in mice with induced expression of mutant human DISC1 specifically in astrocytes (p = 0.049). These results build upon the body of evidence supporting bioenergetic dysfunction in schizophrenia, and suggests changes in lactate are a key feature of this often devastating severe mental illness.
Publisher
Nature Publishing Group UK,Nature Publishing Group
Subject
/ Animals
/ Humanities and Social Sciences
/ Humans
/ Induced Pluripotent Stem Cells - cytology
/ Induced Pluripotent Stem Cells - metabolism
/ Inhibitory postsynaptic potentials
/ Male
/ Mice
/ Mutation
/ Nerve Tissue Proteins - metabolism
/ Prefrontal Cortex - cytology
/ Prefrontal Cortex - metabolism
/ Rats
/ Rodents
/ Science
