Investigation of the cerebral energy status in patients with glutaric aciduria type I by 31P magnetic resonance spectroscopy.


Möller, H E; Koch, H G; Weglage, J; Freudenberg, F; Ullrich, K; (2003) Investigation of the cerebral energy status in patients with glutaric aciduria type I by 31P magnetic resonance spectroscopy. Neuropediatrics, 34 (2). pp. 57-60. ISSN 0174-304X

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Abstract

In vivo phosphorus magnetic resonance spectroscopy (MRS) was used to investigate markers of the cerebral energy status in two patients with glutaric aciduria type I (GA-I). Besides an increased concentration of phosphomonoesters in one patient, no other significant alterations from controls were found. This might indicate increased resynthesis of dendritic processes secondary to preceding metabolic crises. In contrast to previous cell-culture studies, no cerebral depletion of phosphocreatine (PCr) was observed. In conclusion, a severe global and permanent depletion of cerebral energy supplies must be ruled out. The benefit of a permanent creatine substitution to stabilize mitochondrial energy metabolism seems thus questionable. However, as MRS was performed during stable clinical conditions, the possibility of a PCr decrease during acute metabolic crises cannot be assessed.

Item Type: Article
PubMed ID: 12776224
URI: http://researchonline.lshtm.ac.uk/id/eprint/19705

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