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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    European journal of pediatrics 132 (1979), S. 107-114 
    ISSN: 1432-1076
    Keywords: 3-Methylcrotonylglycin- and 3-hydroxyisovaleric aciduria ; 3-Methylcrotonyl-CoA carboxylase deficiency ; Organic acidurias ; Biotinresponsive organic aciduria ; Convulsions due to metabolic disorders
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract During selective screening for organic acidurias, a 10-week-old girl with muscular hypotonia and recurrent fits was shown to be excreting 3-methylcrotonylglycin and 3-hydroxyisovaleric acid. Besides these metabolites of leucine the presence of small but pathological amounts of propionic and methylcitric acids were demonstrable in her urine, pointing to a defect in the metabolism of biotin. On treatment with biotin (2×5 mg/day) the convulsions stopped at once, her clinical condition improved gradually, and the abnormal metabolites disappeared from the urine. Within 6 weeks the child was discharged in a good general condition without apparent signs of neurological damage.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    European journal of pediatrics 128 (1978), S. 197-205 
    ISSN: 1432-1076
    Keywords: Propionic acidemia ; Organic acidemias ; Organic acidurias ; Inherited disorders of the metabolism of organic acids ; 2-Methyl-3-oxovaleric acid ; Liver histology in propionic acidemia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Nach einer kurzen Erläuterung der biochemischen Grund-lagen wird am Beispiel eines eigenen Falles von Propionacidämie auf die Frühsymptomatik (vermehrte Schläfrigkeit, Muskelhypotonie, Trinkschwäche, Hypothermie, metabolische Acidose, Ketonurie, Erbrechen), die durchgeführten Therapieversuche, die Obduktionsbefunde und auf Urinuntersuchungen mit Hilfe der Gaschromatographie und der Gaschromatographie-Massenspektrometrie eingegangen. Diese Untersuchungen ergaben, daß neben den bei Propionacidämie bekanntermaßen im Urin ausgeschiedenen Metaboliten, wie Propion-, 3-Hydroxypropion- und Methylcitronensäure, auch 2-Methyl-3-oxovaleriansäure, das Kondensationsprodukt zweier Moleküle Propionyl-CoA, in nennenswertem Umfang synthetisiert und im Harn nachgewiesen werden kann.
    Notes: Abstract A new case of propionic acidemia is presented, paying special attention to the early symptoms of this disease, such as increased drowsiness, muscular hypotonia, poor feeding, hypothermia, metabolic acidosis, ketonuria and vomiting. Investigation by gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS) revealed the excretion of fairly high amounts of 2-methyl-3-oxovaleric acid, a condensation product of two molecules of propionyl-CoA, as well as the known pathological metabolites such as propionic, 3-hydroxypropionic and methylcitric acids. Among the post mortem findings the histological studies of the liver were the most remarkable.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    European journal of pediatrics 142 (1984), S. 208-210 
    ISSN: 1432-1076
    Keywords: Screening ; Inborn errors of metabolism ; Organic acidurias ; Propionic acidemia ; Incidence of organic acidurias
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Between 1975 and 1981 nearly 9000 patients with suspected inherited metabolic diseases were investigated by a selective screening procedure including, apart from simple tests for ketone bodies, sugars and SH-containing compounds, high voltage electrophoresis of amino acids as well as gas liquid chromatography and gas liquid chromatography-mass spectrometry of the organic acids. Fifty-two cases with 18 different inborn errors of metabolism were detected. The effectivity index was calculated to be 0.6% or 1 case in about 170 requests. From the presented and from already existing data in the literature the overall incidences for all organic acidurias together and for propionic acidemia separately were appraized to be 1:10000 and 1:50000, respectively. About half of the patients diagnosed by this screening may benefit from the diagnosis.
    Type of Medium: Electronic Resource
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