Abstract
MR spectroscopy in a patient with argininosuccinate lyase deficiency revealed elevated cerebral guanidinoacetate signals, indicating that the phenomenon of increased levels of this compound in brain tissue is not limited to creatine deficiencies.
MeSH terms
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Amino Acid Metabolism, Inborn Errors / diagnosis*
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Argininosuccinic Aciduria*
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Brain Chemistry*
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Child, Preschool
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Glycine / analogs & derivatives*
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Glycine / analysis
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Humans
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Infant
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Infant, Newborn
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Magnetic Resonance Imaging
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Magnetic Resonance Spectroscopy