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  • Artikel: DFG Deutsche Nationallizenzen  (2)
  • ATP synthesis  (1)
  • Lacticacidosis  (1)
  • 1
    Digitale Medien
    Digitale Medien
    Lacticacidosis, neurological deterioration and compromised cellular pyruvate oxidation due to a defect in the reoxidation of cytoplasmically generated NADH (1983)
    Springer
    European journal of pediatrics 140 (1983), S. 98-101 
    Details
    ISSN: 1432-1076
    Schlagwort(e): Lacticacidosis ; Neurological deterioration ; Redox disequilibrium
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Two patients, one dying at 25 days and one at 20 months had ‘chronic’ lactic acidaemia with a high lactate to pyruvate ratio. Both showed EEG abnormalities and seizure activity and both died of respiratory failure. Investigation of cultured skin fibroblasts from these patients revealed normal pyruyate dehydrogenase and pyruvate carboxylase activities but the cells showed a decreased ability to oxidise pyruvate which was returned to normal on the addition of methylene blue. Subsequent investigations revealed that the mitochondria from the patients' cells could oxidise pyruvate normally but that the cells had an abnormal NAD to NADH ratio under standard conditions of incubation. It was concluded that both children had a redox disequilibrium in the cytoplasmic compartment due to a problem in transporting reducing equivalents from the cytoplasmic to the mitochondrial compartments.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00441651
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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    Artikel (Nationallizenzen)
    Volltext
  • 2
    Digitale Medien
    Digitale Medien
    MtDNA and nuclear mutations affecting oxidative phosphorylation: Correlating severity of clinical defect with extent of bioenergetic compromise (1994)
    Springer
    Journal of bioenergetics and biomembranes 26 (1994), S. 311-316 
    Details
    ISSN: 1573-6881
    Schlagwort(e): ATP synthesis ; mtDNA ; complex I ; complex IV ; complex V
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie , Physik
    Notizen: Abstract Rates of ATP synthesis were studied in cultured skin fibroblasts treated with digitonin. In fibroblasts from patients with complex I deficiency, complex IV and complex V deficiency rates of ATP synthesis were decreased below the levels found in controls. In mitochondria isolated from cultured lymphoblasts, ATP synthesis was also decreased by 35–50% in cases of Leigh's disease due to complex I, complex IV, or complex V deficiency. Calculating the effect of the mutations in the various complexes on the overall efficiency of oxidative phosphorylation, we show that the mtDNA 8993 mutation which affects the activity of the F1F0 ATPase (complex V) has the strongest effect.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00763102
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
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