Combined deficiencies of the pyruvate dehydrogenase complex and enzymes of the respiratory chain in mitochondrial myopathies. 1992

W Sperl, and W Ruitenbeek, and R C Sengers, and J M Trijbels, and H Bentlage, and J E Wraith, and C Heilmann, and S Stöckler, and C Binder, and G C Korenke
Department of Paediatrics, University Hospital of Nijmegen, The Netherlands.

In six patients with mitochondrial (encephalo-) myopathy investigations of skeletal muscle revealed a defect of pyruvate dehydrogenase complex (PDHC) in combination with one or more respiratory chain complex deficiencies. A combination of defects of this kind has not been reported previously. Five of the six patients presented within the 1st year of life and had a severe clinical course. Intrafamilial variability of the clinical course in dizygotic twins both suffering from a cytochrome c oxidase deficiency and one of them also from a PDHC deficiency suggests an additional effect of PDHC deficiency on the clinical symptoms. Immunoblot studies of PDHC in five of the patients revealed no abnormalities in their subunit pattern, rendering a defect of mitochondrial protein import or assembly unlikely. The finding of a combined PDHC and respiratory chain deficiency has implications for the diagnostic approach, for therapy and genetic counselling. The exact pathogenetic mechanism of this combination of defects remains to be elucidated.

UI MeSH Term Description Entries
D007223 Infant A child between 1 and 23 months of age. Infants
D007231 Infant, Newborn An infant during the first 28 days after birth. Neonate,Newborns,Infants, Newborn,Neonates,Newborn,Newborn Infant,Newborn Infants
D008297 Male Males
D008931 Mitochondria, Muscle Mitochondria of skeletal and smooth muscle. It does not include myocardial mitochondria for which MITOCHONDRIA, HEART is available. Sarcosomes,Mitochondrion, Muscle,Muscle Mitochondria,Muscle Mitochondrion,Sarcosome
D009132 Muscles Contractile tissue that produces movement in animals. Muscle Tissue,Muscle,Muscle Tissues,Tissue, Muscle,Tissues, Muscle
D009135 Muscular Diseases Acquired, familial, and congenital disorders of SKELETAL MUSCLE and SMOOTH MUSCLE. Muscle Disorders,Myopathies,Myopathic Conditions,Muscle Disorder,Muscular Disease,Myopathic Condition,Myopathy
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D015325 Pyruvate Dehydrogenase Complex Deficiency Disease An inherited metabolic disorder caused by deficient enzyme activity in the PYRUVATE DEHYDROGENASE COMPLEX, resulting in deficiency of acetyl CoA and reduced synthesis of acetylcholine. Two clinical forms are recognized: neonatal and juvenile. The neonatal form is a relatively common cause of lactic acidosis in the first weeks of life and may also feature an erythematous rash. The juvenile form presents with lactic acidosis, alopecia, intermittent ATAXIA; SEIZURES; and an erythematous rash. (From J Inherit Metab Dis 1996;19(4):452-62) Autosomal recessive and X-linked forms are caused by mutations in the genes for the three different enzyme components of this multisubunit pyruvate dehydrogenase complex. One of the mutations at Xp22.2-p22.1 in the gene for the E1 alpha component of the complex leads to LEIGH DISEASE. Ataxia with Lactic Acidosis, Type I,Lactic Acidosis with Ataxia, Type I,Ataxia with Lactic Acidosis,Ataxia with Lactic Acidosis I,Ataxia, Intermittent, with Abnormal Pyruvate Metabolism,Ataxia, Intermittent, with Pyruvate Dehydrogenase, or Decarboxylase, Deficiency,Intermittent Ataxia with Pyruvate Dehydrogenase Deficiency,Juvenile Pyruvate Dehydrogenase Complex Deficiency Disease,Neonatal Pyruvate Dehydrogenase Complex Deficiency Disease,PDH Deficiency,PDHC Deficiency,PDHC Deficiency Disease,Pyruvate Decarboxylase Deficiency,Pyruvate Dehydrogenase Complex Deficiency,Pyruvate Dehydrogenase Complex Deficiency Disease, Juvenile,Pyruvate Dehydrogenase Complex Deficiency Disease, Neonatal,Pyruvate Dehydrogenase Deficiency,Type I Ataxia with Lactic Acidosis,Deficiency, PDH,Deficiency, PDHC,Deficiency, Pyruvate Decarboxylase,Deficiency, Pyruvate Dehydrogenase

Related Publications

W Sperl, and W Ruitenbeek, and R C Sengers, and J M Trijbels, and H Bentlage, and J E Wraith, and C Heilmann, and S Stöckler, and C Binder, and G C Korenke
August 1985, Biochemical Society transactions,
W Sperl, and W Ruitenbeek, and R C Sengers, and J M Trijbels, and H Bentlage, and J E Wraith, and C Heilmann, and S Stöckler, and C Binder, and G C Korenke
January 1988, Acta neuropathologica,
W Sperl, and W Ruitenbeek, and R C Sengers, and J M Trijbels, and H Bentlage, and J E Wraith, and C Heilmann, and S Stöckler, and C Binder, and G C Korenke
September 1997, Molecular and cellular biochemistry,
W Sperl, and W Ruitenbeek, and R C Sengers, and J M Trijbels, and H Bentlage, and J E Wraith, and C Heilmann, and S Stöckler, and C Binder, and G C Korenke
December 2013, Orphanet journal of rare diseases,
W Sperl, and W Ruitenbeek, and R C Sengers, and J M Trijbels, and H Bentlage, and J E Wraith, and C Heilmann, and S Stöckler, and C Binder, and G C Korenke
April 1988, Trends in biochemical sciences,
W Sperl, and W Ruitenbeek, and R C Sengers, and J M Trijbels, and H Bentlage, and J E Wraith, and C Heilmann, and S Stöckler, and C Binder, and G C Korenke
January 1988, Australian paediatric journal,
W Sperl, and W Ruitenbeek, and R C Sengers, and J M Trijbels, and H Bentlage, and J E Wraith, and C Heilmann, and S Stöckler, and C Binder, and G C Korenke
May 2014, Revue neurologique,
W Sperl, and W Ruitenbeek, and R C Sengers, and J M Trijbels, and H Bentlage, and J E Wraith, and C Heilmann, and S Stöckler, and C Binder, and G C Korenke
April 1985, Developmental medicine and child neurology,
W Sperl, and W Ruitenbeek, and R C Sengers, and J M Trijbels, and H Bentlage, and J E Wraith, and C Heilmann, and S Stöckler, and C Binder, and G C Korenke
January 1989, Journal of inherited metabolic disease,
W Sperl, and W Ruitenbeek, and R C Sengers, and J M Trijbels, and H Bentlage, and J E Wraith, and C Heilmann, and S Stöckler, and C Binder, and G C Korenke
January 1984, Journal of inherited metabolic disease,
Copied contents to your clipboard!