Abstract
Pyruvate dehydrogenase complex (PDC) deficiency is an inborn metabolic disorder that causes neurological abnormalities. In this report, a murine model of PDC deficiency was analyzed using histology, magnetic resonance (MR) imaging and MR spectroscopy (MRS) and the results compared to PDC-deficient female patients. Histological analysis of brains from PDC-deficient mice revealed defects in neuronal cytoarchitecture in grey matter and reduced size of white matter structures. MR results were comparable to previously published clinical MR findings obtained from PDC-deficient female patients. Specifically, a 15.4% increase in relative lactate concentration, 64.4% loss of N-acetylaspartate concentration and a near complete loss of discernable glutamine plus glutamate concentration were observed in a PDC deficient mouse compared to wild-type control. Lower apparent diffusion coefficients (ADCs) were observed within the brain consistent with atrophy. These results demonstrate the usefulness of this murine model to systematically evaluate the beneficial effects of dietary and pharmacological interventions.
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This study was supported in part by the National Organization for Rare Disorders (NORD).
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Special issue dedicated to John P. Blass.
Lioudmila Pliss and Richard Mazurchuk are two investigators who contributed equally.
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Pliss, L., Mazurchuk, R., Spernyak, J.A. et al. Brain MR Imaging and Proton MR Spectroscopy in Female Mice with Pyruvate Dehydrogenase Complex Deficiency. Neurochem Res 32, 645–654 (2007). https://doi.org/10.1007/s11064-007-9295-z
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DOI: https://doi.org/10.1007/s11064-007-9295-z