In Vivo Pyruvate Detected by MR Spectroscopy in Neonatal Pyruvate Dehydrogenase Deficiency

We present a unique finding of an elevated level of pyruvate at 2.37 ppm revealed by in vivo MR spectroscopy of a female neonate. Low fibroblast pyruvate dehydrogenase (PDH) complex activity subsequently confirmed a diagnosis of PDH deficiency. Abnormalities of brain development consistent with PDH...

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Bibliographic Details
Published in:American journal of neuroradiology : AJNR 2003-08, Vol.24 (7), p.1471-1474
Main Authors: Zand, Dina J, Simon, Erin M, Pulitzer, Steven B, Wang, D.J, Wang, Z.J, Rorke, Lucy B, Palmieri, Michael, Berry, Gerard T
Format: Article
Language:English
Subjects:
Abnormalities, Multiple
Cerebral Ventricles - abnormalities
Cerebral Ventricles - metabolism
Female
Humans
Infant, Newborn
Magnetic Resonance Spectroscopy
Mitochondria - metabolism
Pediatric
Pyruvate Dehydrogenase Complex Deficiency Disease - diagnosis
Pyruvate Dehydrogenase Complex Deficiency Disease - metabolism
Pyruvic Acid - metabolism
Ultrasonography, Prenatal
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Summary:We present a unique finding of an elevated level of pyruvate at 2.37 ppm revealed by in vivo MR spectroscopy of a female neonate. Low fibroblast pyruvate dehydrogenase (PDH) complex activity subsequently confirmed a diagnosis of PDH deficiency. Abnormalities of brain development consistent with PDH deficiency were also evident on fetal and postnatal MR images. To our knowledge, this is the first report of pyruvate being shown in vivo in a child and the first report of MR spectroscopy aiding in the diagnosis of inborn error in pyruvate metabolism before confirmation by conventional enzymatic testing. This finding has potential implications for earlier diagnosis in patients with defects in mitochondrial metabolism.
ISSN:0195-6108
1936-959X