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Primary cystathioninuria in an infant born out of incest

J Hyánek, J Hoza, E Seemanová

    Acta Universitatis Carolinae. Medica. Monographia
    |January 1, 1977
    PubMed

    Insights

    This study identified the first case of primary cystathioninuria in Czechoslovakia, an infant with elevated cystathionine and psychomotor retardation. This rare metabolic disorder affects amino acid processing.

    Area of Science:

    • Biochemistry
    • Clinical Genetics
    • Pediatrics

    Background:

    • Congenital disorders of amino acid metabolism are a significant concern in pediatric health.
    • Screening programs are crucial for early detection and intervention in newborns.

    Observation:

    • An infant born from an incestuous union presented with severe psychomotor retardation.
    • Elevated urinary excretion of cystathionine, cystine derivatives, and disulfides was noted.

    Findings:

    • Serum cystathionine and disulfide levels were significantly elevated.
    • Diagnostic tests, including methionine and vitamin B12 tolerance tests, confirmed primary cystathioninuria.
    • This represents the first documented case of primary cystathioninuria in the Czechoslovak population.

    Implications:

    • Highlights the importance of metabolic screening in identifying rare genetic disorders.
    • Underscores the potential link between consanguinity and the manifestation of recessive metabolic diseases.
    • Contributes to the understanding of sulfurated amino acid metabolism disorders.

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