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Kirches 1998 J Inherit Metab Dis

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Publications in the MiPMap
Kirches EJF, Winkler K, Warich-Kirches M, Szibor R, Wien F, Kunz WS, von Bossanyi P, Bajaj PK, Dietzmann K (1998) mtDNA depletion and impairment of mitochondrial function in a case of a multisystem disorder including severe myopathy. J. Inher. Metabol. Disease 21: 400-408.

Β» PMID: 9700597

Kirches EJF, Winkler K, Warich-Kirches M, Szibor R, Wien F, Kunz WS, von Bossanyi P, Bajaj PK, Dietzmann K (1998) Journal of Inhe

Abstract: The ratio of mtDNA and a nuclear reference gene was estimated by Southern blotting in the skeletal muscle DNA of a 3-year-old girl who suffered from congenital brain damage, focal epilepsy, hepatomegaly, malabsorption syndrome and severe myopathy. The signal ratio of mtDNA versus 18S rDNA was 22% of the mean value obtained from controls. No major deletions or insertions were found and the MERRF, MELAS and NARP mutations were ruled out. Mitochondrial DNA-encoded enzyme activities and mitochondrial respiration were reduced. The analysis of the NAD(P)H and flavoprotein redox states of intact fibres revealed the presence of mitochondrial dysfunction. In tissue sections a moderate elevation of type I and type II fibre diameter variation was detected, aberrant NADH- and succinate dehydrogenase staining and some ragged red fibres. This suggested that a mitochondrial disorder caused by a decrease in the amount of intact wild-type mtDNA was responsible for the severe myopathy.


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Organism: Human  Tissue;cell: Skeletal Muscle"Skeletal Muscle" is not in the list (Heart, Skeletal muscle, Nervous system, Liver, Kidney, Lung;gill, Islet cell;pancreas;thymus, Endothelial;epithelial;mesothelial cell, Blood cells, Fat, ...) of allowed values for the "Tissue and cell" property. 


Regulation: Respiration; OXPHOS; ETS Capacity"Respiration; OXPHOS; ETS Capacity" is not in the list (Aerobic glycolysis, ADP, ATP, ATP production, AMP, Calcium, Coupling efficiency;uncoupling, Cyt c, Flux control, Inhibitor, ...) of allowed values for the "Respiration and regulation" property. 


HRR: Oxygraph-2k