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Phenotypic heterogeneity in the syndromes of 3-methylglutaconic aciduria.
- Source :
-
The Journal of pediatrics [J Pediatr] 1991 Jun; Vol. 118 (6), pp. 885-90. - Publication Year :
- 1991
-
Abstract
- Combined 3-methylglutaconic and 3-methylglutaric aciduria, one of the more common urinary organic acid abnormalities, has been observed in at least three clinical syndromes. We studied an additional seven patients with 3-methylglutaconic aciduria, four of whom were best categorized as having the type II syndrome, two as having an "unspecified" syndrome, and one who may have had a primary urea cycle defect. In cultured cells and autopsy tissues derived from patients with the type II and unspecified syndromes, we were unsuccessful in identifying a defect in the leucine degradative pathway distal to 3-methylcrotonyl-coenzyme A carboxylase and in the cholesterol biosynthetic pathway between 3-hydroxy-3-methylglutaryl-coenzyme A reductase and diphosphomevalonate decarboxylase. Further assessment of the cholesterol biosynthetic pathway in several patients with one of the two types of disease also provided no defined abnormality. The primary metabolic defects in the type II and unspecified syndromes remain undefined.
- Subjects :
- Amino Acid Metabolism, Inborn Errors enzymology
Amino Acid Metabolism, Inborn Errors genetics
Coenzyme A metabolism
Glutarates urine
Humans
Hydroxymethylglutaryl CoA Reductases
Meglutol metabolism
Meglutol urine
Phenotype
Amino Acid Metabolism, Inborn Errors urine
Glutarates metabolism
Meglutol analogs & derivatives
Subjects
Details
- Language :
- English
- ISSN :
- 0022-3476
- Volume :
- 118
- Issue :
- 6
- Database :
- MEDLINE
- Journal :
- The Journal of pediatrics
- Publication Type :
- Academic Journal
- Accession number :
- 1710267
- Full Text :
- https://doi.org/10.1016/s0022-3476(05)82199-7