A defect in pyruvate decarboxylase in a child with an intermittent movement disorder

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Abstract

A patient with an intermittent movement disorder has been found to have an inherited defect in pyruvate decarboxylase ((2-oxo-acid carboxy-lyase, E.C. 4.1.1.1.). The patient is a 9 yr old boy who since infancy has had repeated episodes of a combined cerebellar and choreoathetoid movement disorder. He has an elevated level of pyruvic acid in his blood, an elevated urinary alanine content, and less marked elevations in blood alanine and lactate.

Authors

John P. Blass, Joel Avigan, B. William Uhlendorf