Limitations of 3-phenylpropionylglycine in early screening for medium-chain acyl-coenzyme A dehydrogenase deficiency.

Bhala, A; Bennett, M J; McGowan, K L; Hale, D E · J Pediatr · 1993

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Abstract

Screening for medium-chain acyl-coenzyme A dehydrogenase (MCAD) deficiency by urinary 3-phenylpropionylglycine may not be reliable in early infancy because young infants are not colonized with adult-type colonic flora. In this study we delineated the microbes that produce 3-phenylpropionic acid, the precursor of 3-phenylpropionylglycine. We found that the use of some antibiotics may alter gut flora, thereby confounding this method of screening for MCAD deficiency.

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