Persistent 5-oxoprolinuria with normal glutathione synthase and 5-oxoprolinase activities.

Abstract:

:5-Oxoprolinuria is primarily associated with inborn errors of the gamma-glutamyl cycle. In addition, transient 5-oxoprolinuria has been reported to occur in a variety of conditions, such as prematurity and malnutrition, and during medication. We report an unusual case of permanent 5-oxoprolinuria. The patient presented 3 days after birth with acidosis, and metabolic screening revealed massive excretion of 5-oxoproline. Following recovery, growth and psychomotor development were normal, but 5-oxoprolinuria persisted. Primary defects in the gamma-glutamyl cycle were ruled out since glutathione synthase and 5-oxoprolinase activities were normal. All known secondary causes of 5-oxoprolinuria were also excluded, leaving the basis of the permanent 5-oxoprolinuria in this patient unresolved.

journal_name

J Inherit Metab Dis

authors

Ruijter GJ,Mourad-Baars PE,Ristoff E,Onkenhout W,Poorthuis BJ

doi

10.1007/s10545-006-0370-4

subject

Has Abstract

pub_date

2006-08-01 00:00:00

pages

587

issue

4

eissn

0141-8955

issn

1573-2665

journal_volume

29

pub_type

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