Abstract

Multiple carboxylase deficiency (MCD) is characterized by decreased activities of the biotin-dependent carboxy-lases and a specific urinary organic acid pattern. The early-onset form is due to a defect of holocarboxylase-synthetase (Sweetman, 1981) while deficient biotinidase activity leads to the late-onset form (Wolf et al., 1983). Both forms are responsive to administration of biotin in pharmacological dosage. We report preliminary results of original studies carried out on the cerebrospinal fluid (CSF) of a new case of biotinidase-deficient MCD.KeywordsPyruvate CarboxylaseDeficient BiotinidaseBiotinidase ActivityPyruvate Carboxylase ActivityCentral Nervous System LevelThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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