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  • 1
    ISSN: 1432-1076
    Keywords: Neurometabolic disease ; Organic aciduria ; 2-oxoglutarate dehydrogenase deficiency
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A boy and a girl born to a consanguineous Tunisian couple are suffering from a slowly progressive nervous disorder. Initially they both had normal psychomotor development with acquisition of gait and speech. First symptoms in the boy were athetoid movements during the second year of life. He later lost all motor and language skills and developed muscular rigidity and intention tremor. At the age of five years, he was completely bedridden while he appeared mentally much less affected. His younger sister followed a similar course. The major specific abnormality detected was a strikingly elevated excretion of 2-oxoglutaric acid, which was identified by gas liquid chromatography, mass spectrometry, and enzymatic analysis. 2-oxoglutarate dehydrogenase activity in homogenates of cultured skin fibroblasts was reduced to about 25% of control values in both children. Although the pathogenetic mechanisms leading to brain damage remain obscure, the finding strongly suggest an autosomal recessive neurometabolic disease with predominant involvement of the extrapyramidal system.
    Type of Medium: Electronic Resource
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  • 2
    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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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    European journal of pediatrics 143 (1984), S. 61-63 
    ISSN: 1432-1076
    Keywords: Propionic acidaemia ; Carnitine treatment ; Propionyl carnitine ; 2-methylcitrate
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A 6-week-old female infant presented in a severe metabolic crisis from propionic acidaemia. The condition was aggravated by pneumonia and heart insufficiency. In addition to the general supportive measures and caloric intake exclusively from glucose, intravenous l-carnitine treatment (2 g l-carnitine/24 h) was started to enhance propionic acid excretion as a carnitine conjugate. Despite the therapeutic efforts the patient died about 48 h after admission in sudden respiratory arrest and bradycardia. Serum propionic acid concentration was increased to 0.3 μmol/ml. Propionylcarnitine excretion was measured and about 55% of the overall excretion during the 48 h treatment period was attributed to an effect of carnitine administration. 2-methylcitrate and 2-methyl-3-oxovaleric acid excretion decreased during the same period. Obviously carnitine was not able to prevent metabolic deterioration but may provide some additional “buffer capacity” during long-term dietary treatment.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    European journal of pediatrics 136 (1981), S. 281-283 
    ISSN: 1432-1076
    Keywords: 4-Hydroxyisovaleric acid ; 3-Methyl-γ-butyrolacetone ; Isovaleric acidemia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract In addition to N-isovalerylglycin, isovaleric, 3-hydroxyisovaleric and methylsuccinic acids the excretion of previously unreported 4-hydroxyisovaleric acid in isovaleric acidemia is described. The new metabolite seems to be an intermediate product in the formation of methylsuccinic acid from isovaleric acid by omega-oxidation.
    Type of Medium: Electronic Resource
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  • 5
    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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  • 6
    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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