2013, Number 3
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ABSTRACTThe maple syrup urine disease is an infrequent metabolism innate error, caused by a gene mutation to codify the proteins participating in the catabolism of the branched-chain aminoacids, which generate 5 variant. The most common variant is caused by a deficit of the BCKDHA enzyme and the least frequent by deficit of dihydrolipoamide dehydrogenase. We present a case of a newborn male with clinical traits of the classical variant such as high levels of breached-chain aminoacids, prolonged apnea, distinctive urine smell, as well as hypoglycemia and pathognomonic hyperlactacidemia of dihydrolipoamide dehydrogenase. The findings in this report are conclusive with a hepatorenal syndrome similar to Fanconi-Bickel associated to the joint deficiency of two enzymes of the BCKDHA complex, not described previously.
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