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List of references:
Decrease of pyruvate dehydrogenase phosphatase activity in patients with congenital lactic acidemia.
M Ito, H Kobashi, E Naito, T Saijo, E Takeda, A H Huq, Y Kuroda,
We developed an assay method for pyruvate dehydrogenase phosphatase activity using [1-14C]pyruvate and measured pyruvate dehydrogenase phosphatase activity in cultured skin fibroblasts from three patients with congenital lactic acidemia due to a defect in activation of the pyruvate dehydrogenase complex. The enzyme activity of their fibroblasts was significantly reduced to 50.7%, 64.6% and 63.1% of that of control fibroblasts. These observations suggest that the defect in activation of the pyruvate dehydrogenase complex in these patients might be due to a reduction in pyruvate dehydrogenase phosphatase activity.
Clinica chimica acta; international journal of clinical chemistry - Jul 1992
Pyruvate dehydrogenase phosphatase deficiency: identification of the first mutation in two brothers and restoration of activity by protein complementation.
Mary C Maj, Neviana MacKay, Valeriy Levandovskiy, Jane Addis, E Regula Baumgartner, Matthias R Baumgartner, Brian H Robinson, Jessie M Cameron,
Pyruvate dehydrogenase phosphatase (PDP) deficiency has been previously reported as an enzymopathy, but the genetic basis for such a defect has never been established.
The Journal of clinical endocrinology and metabolism - Jul 2005