An intronic point mutation was identified in the E1alpha PDH gene from a boy with delayed development and lactic acidosis, an X-linked disorder associated with a partial defect in pyruvate dehydrogenase (PDH) activity. Protein analysis demonstrated a corresponding decrease in immunoreactivity of the alpha and beta subunits of the PDH complex.

In addition to the normal spliced mRNA pr…

The purpose of the study was differential diagnosis of lactic acidosis in 44 children aged from 2 weeks to 4 years. In all of them the lactate level in repeated determinations exceeded 27 mg/100 ml.

From the point of view of clinical manifestations the children were divided into three groups:

26 with hepatomegaly and hypoglycaemia (I),
6 with ataxia and retardati…

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