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  • 1995-1999  (2)
  • 1965-1969
  • 4-hydroxycyclohexylacetic acid  (1)
  • Hypertrophic cardiomyopathy  (1)
  • 1
    ISSN: 1433-0474
    Keywords: Schlüsselwörter Acyl-CoA-Dehydrogenase-Defekt überlangkettiger Fettsäuren ; Dikarbonazidurie ; Hypertrophische Kardiomyopathie ; Key words Very-long-chain acyl-CoA dehydrogenase deficiency ; Dicarboxylic aciduria ; Hypertrophic cardiomyopathy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Very-long-chain acyl-CoA dehydrogenase deficiency (VLCADD) is a rare disorder of the mitochondrial β-oxidation pathway. A female infant at 2,5 months of age presented with coma, cardiorespiratory arrest, hypoketotic hypoglycemia, hepatomegaly and hypertrophic cardiomyopathy. Urinary dicarboxylic acid profile suggested VLCADD. This diagnosis was confirmed by reduced enzyme activity in fibroblasts (20% of controls). After a few days the infant died of peritonitis caused by a penetrating ulcer of the duodenum. Discussion: A higher incidence of upper gastrointestinal ulcera is reported in patients with medium-chain acyl-CoA dehydrogenase deficiency (MCADD). VLCADD is characterized by early onset and high mortality due to cardiac disease. Gastrointestinal complications may contribute to or be directly responsible for death.
    Notes: Zusammenfassung Der Acyl-CoA-Dehydrogenasedefekt überlangkettiger Fettsäuren (very-long-chain acyl-CoA dehydrogenase deficiency, VLCADD) ist eine seltene Störung der mitochondrialen β-Oxidation. Wir berichten über einen weiblichen Säugling, bei dem im Alter von 2,5 Monaten im Rahmen eines Infekts Koma, Herz- und Atemstillstand, hypoketotische Hypoglykämie, Hepatomegalie und hypertrophe Kardiomyopathie auftraten. Ein charakteristisches Dikarbonsäurenmuster im Urin führte zu der Verdachtsdiagnose eines VLCADD, der durch den Nachweis einer auf 20% der Norm herabgesetzten Enzymaktivität in kultivierten Fibroblasten bestätigt wurde. Das Kind verstarb nach wenigen Tagen an einer Peritonitis infolge eines perforierten Ulcus duodeni. Diskussion: Ein gehäuftes Auftreten penetrierender Ulzera des oberen Magen-Darm-Trakts wurde bereits im Zusammenhang mit dem Abbaudefekt mittelkettiger Fettsäuren (medium-chain acyl-CoA dehydrogenase deficiency, MCADD) beschrieben. VLCADD ist charakterisiert durch frühe Erstmanifestation und eine hohe Mortalität, die v.a. auf die Kardiomyopathie zurückgeführt wird, zu der aber auch gastrointestinale Komplikationen beitragen können.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    European journal of pediatrics 158 (1999), S. 578-582 
    ISSN: 1432-1076
    Keywords: Key words Hawkinsinuria ; 4-hydroxycyclohexylacetic acid ; Tyrosyluria ; Chronic metabolic acidosis ; Growth retardation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Hawkinsinuria is a rarely diagnosed autosomal dominantly transmitted inborn error of tyrosine metabolism with impaired conversion of 4-hydroxyphenylpyruvate to homogentisate. As a consequence of the defective 4-hydroxyphenylpyruvate dioxigenase activity, large amounts of the unusual, ninhydrin-positive amino acid hawkinsin and later on in life 4-hydroxycyclohexylacetic acid are formed and excreted. Clinically the disease is characterised mainly by chronic metabolic acidosis and severe growth retardation as a result of protein overload. As the ability to form 4-hydroxycyclohexylacetic acid and thereby to cope with the still not very well defined reactive and toxic intermediates increases, clinical symptoms vanish. We report here a new patient with hawkinsinuria having experienced a series of admissions because of unclear hepatopathy, growth retardation, and renal tubular acidosis. Conclusion Prolonged tyrosyluria in the newborn and young baby should cause the clinical chemist not only to exclude tyrosinaemia, galactosaemia, and fructose intolerance but also to look carefully for hawkinsin in the aminoacid chromatogram.
    Type of Medium: Electronic Resource
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