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  • 1
    ISSN: 1432-1076
    Keywords: Glutaric aciduria type II ; Multiple acyl-CoA dehydrogenase deficiency ; Organic aciduria
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Two male siblings suffering from a severe form of glutaric aciduria type II were studied. One patient died within one hour after birth, the other at the age of five days. Both patients presented with respiratory distress soon after birth. They had a variety of congenital morphologic abnormalities. One patient's outstanding “sweaty-feet” odour on the second day of life led to organic acid analysis of urine revealing massive lactic, glutaric, and ethylmalonic aciduria along with a high excretion of various other carboxylic acids and glycine conjugates of the branched chain carboxylic acids. The pattern of metabolites in serum and urine as well as results of degradation studies with various substrates in cultured fibroblasts were consistent with a defect in multiple acyl-CoA dehydrogenation. The morphological abnormalities are presented in a subsequent paper.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-1076
    Keywords: Multiple acyl-CoA-dehydrogenation deficiency ; Glutaric aciduria type II ; Congenital polycystic kidneys ; Fatty liver ; Cerebrocortical dysplasia ; Fetopathy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The post mortem and microscopic findings of two newborn male sibling of Turkish origin suffering from multiple acyl-CoA-dehydrogenation deficiency (glutaric aciduria type II) are reported in detail for the first time. The morphological disease pattern was strikingly identical in both siblings: enlarged bilateral polycystic kidneys, symmetric warty dysplasia of the cerebral cortex, and bile duct hypoplasia, cholestasis, siderosis and fatty degeneration of the liver were found in both infants. In addition, features of Potter syndrome (pulmonary hypoplasia and ‘Potter face’) were observed only in sibling I, and focal hypoplasia and dysplasia of pancreatic ducts only in sibling II. It appears to be a rather remote chance that the rare metabolic disorder accidently coincided with the equally rare developmental abnormality in both siblings. We believe it to be more likely that both conditions are pathogenetically related in that the accumulation of large quantities of carboxylic acids exerted their effect already in intrauterine life, probably leading to cellular damage and secondary developmental defects of the fetal kidneys, liver, pancreas and brain. From the nature of the observed morphological alterations we speculate that the injury did not occur until after cessation of organogenesis during the fetal period of intrauterine development.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-1076
    Keywords: Isolated 3-methylcrotonyl-CoA carboxylase deficiency ; Inborn errors of metabolism ; Biotin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A patient with early-onset 3-methylcrotonyl coenzyme A carboxylase (MCC) deficiency showing a severe clinical course is described. Abnormal eye and head movements suggestive of seizures were noticed soon after birth. Tonic convulsions at the age of 10 weeks led to admission. Urinary organic acid analysis using gas chromatography-mass spectrometry at 3 months of age revealed elevated concentrations of 3-hydroxyisovaleric acid (3HIVA) and 3-methylcrotonylglycine but normal levels of lactate, 3-hydroxypropionate and methylcitrate suggesting isolated MCC deficiency. This was confirmed by enzyme assays in lymphocytes and cultured skin fibroblasts: MCC activity was virtually undetectable whereas activities of propionyl-CoA and pyruvate carboxylases were within the normal range. A low protein (0.8–1.5 g/kg/day) diet supplemented with a leucine-free amino acid mixture resulted in a marked decrease of 3HIVA excretion.l-Carnitine and biotin administration had no effect on the clinical condition or metabolite exretion. Supplementation with glycine resulted in only a temporary fall of 3HIVA excretion and was therefore discontinued.l-Carnitine therapy was reintroduced later because of secondary carnitine deficiency. Compliance with treatment was poor until the age of 27 months resulting in a severe episode with seizures and coma. The general clinical condition of the patient was always good but his psychomotor development was delayed and seizures were not continuously under good control due to poor therapy compliance. The boy is now 10.5 years old and attending a school for children with learning handicaps.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-1076
    Keywords: Key words Isolated ; 3-methylcrotonyl-CoA carboxylase ; deficiency ; Inborn errors of ; metabolism ; Biotin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A patient with early-onset 3-methylcrotonyl coenzyme A carboxylase (MCC) deficiency showing a severe clinical course is described. Abnormal eye and head movements suggestive of seizures were noticed soon after birth. Tonic convulsions at the age of 10 weeks led to admission. Urinary organic acid analysis using gas chromatography-mass spectrometry at 3 months of age revealed elevated concentrations of 3-hydroxyisovaleric acid (3HIVA) and 3-methylcrotonylglycine but normal levels of lactate, 3-hydroxypropionate and methylcitrate suggesting isolated MCC deficiency. This was confirmed by enzyme assays in lymphocytes and cultured skin fibroblasts: MCC activity was virtually undetectable whereas activities of propionyl-CoA and pyruvate carboxylases were within the normal range. A low protein (0.8–1.5 g/kg/ day) diet supplemented with a leucine-free amino acid mixture resulted in a marked decrease of 3HIVA excretion. l-Carnitine and biotin administration had no effect on the clinical condition or metabolite excretion. Supplementation with glycine resulted in only a temporary fall of 3HIVA excretion and was therefore discontinued. l-Carnitine therapy was reintroduced later because of secondary carnitine deficiency. Compliance with treatment was poor until the age of 27 months resulting in a severe episode with seizures and coma. The general clinical condition of the patient was always good but his psychomotor development was delayed and seizures were not continuously under good control due to poor therapy compliance. The boy is now 10.5 years old and attending a school for children with learning handicaps. Conclusion Isolated MCC deficiency of early-onset is a rare condition exhibiting a more severe clinical course than the later-onset form described in most other cases. The prognostic value of 3 HIVA measurements in CSF and serum should be evaluated in future cases.
    Type of Medium: Electronic Resource
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