High frequency of biotinidase deficiency in Italian population identified by newborn screening.

ABSTRACT: The biotinidase (BTD) enzyme is essential for recycling biotin, a water-soluble B-complex vitamin that is the coenzyme of four carboxylases involved in fatty acid synthesis, amino acid catabolism and gluconeogenesis. If untreated, total or partial BTD deficiencies lead to an autosomal recessive inherited organic aciduria whose clinical features, mainly presenting in the first years of life, include, seizures, skin rash, and alopecia. Based on residual BTD enzyme activity it is possible to identify partial or total biotinidase deficiency. The incidence of profound and partial biotinidase deficiency worldwide is estimated to be about 1 in 60.000. We report twelve years of experience in the newborn screening of biotinidase deficiency on 466.182 neonates. When a positive screening result occur

SUBMITTER: Funghini S 

PROVIDER: S-EPMC7719957 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature