alexa Benzoate therapy and carnitine deficiency in non-ketotic hyperglycinemia.
Clinical Research

Clinical Research

Journal of Clinical Case Reports

Author(s): Van Hove JL, Kishnani P, Muenzer J, Wenstrup RJ, Summar ML,

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Abstract Five patients presenting with non-ketotic hyperglycinemia in the neonatal period were treated with sodium benzoate to normalize plasma glycine levels. This therapy resulted in seizure reduction and a marked increase in wakefulness. Plasma carnitine deficiency was noted in three of four patients tested, and benzoylcarnitine was identified in plasma, urine, and CSF. Treatment with L-carnitine normalized plasma free carnitine. L-carnitine showed a tendency to increase the glycine conjugation of benzoate. An episode of coma and increased seizures in one patient was associated with a toxic level of benzoate, probably due to insufficient mobilization of glycine for conjugation. High dose benzoate therapy improved the quality of life of surviving patients. Close monitoring of glycine, benzoate and carnitine levels is advised. This article was published in Am J Med Genet and referenced in Journal of Clinical Case Reports

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