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. 1996 Jun;74(6):542–545. doi: 10.1136/adc.74.6.542

3-Phosphoglycerate dehydrogenase deficiency: an inborn error of serine biosynthesis.

J Jaeken 1, M Detheux 1, L Van Maldergem 1, M Foulon 1, H Carchon 1, E Van Schaftingen 1
PMCID: PMC1511571  PMID: 8758134

Abstract

Serine concentrations were markedly decreased in the cerebrospinal fluid of two brothers with congenital microcephaly, profound psychomotor retardation, hypertonia, epilepsy, growth retardation, and hypogonadism. The youngest boy also had congenital bilateral cataract. Magnetic resonance imaging of the brain showed evidence of dysmyelination. Plasma serine as well as plasma and cerebrospinal fluid glycine concentrations were also decreased but to a lesser extent. Treatment with oral serine in the youngest patient significantly increased cerebrospinal fluid serine and abolished the convulsions. In fibroblasts of both patients, a decreased activity was demonstrated of 3-phosphoglycerate dehydrogenase, the first step of serine biosynthesis (22% and 13% of the mean control value). This is an unusual disorder as the great majority of aminoacidopathies are catabolic defects. It is a severe but potentially treatable inborn error of metabolism that has not been previously reported in man.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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