Related Experiment Videos
Defect in alpha-ketobutyrate metabolism: a new inborn error
Clinica Chimica Acta; International Journal of Clinical Chemistry
|January 30, 1985
Summary
Siblings with cyclic vomiting and ketoacidosis exhibit elevated alpha-hydroxybutyrate and alpha-aminobutyrate. This study identifies a novel defect in alpha-ketobutyrate oxidation, a newly described organic acid metabolism disorder.
Area of Science:
- Biochemistry
- Metabolic disorders
- Genetics
Background:
- Cyclic vomiting and ketoacidosis can indicate underlying metabolic derangements.
- Organic acid metabolism disorders present with diverse clinical and biochemical features.
Observation:
- Siblings presented with normoglycemia, ketoacidosis, and elevated plasma/urine alpha-hydroxybutyrate and alpha-aminobutyrate.
- Methionine loading caused increased plasma methionine and alpha-aminobutyrate, followed by urinary alpha-hydroxybutyrate.
- Leukocyte propionate oxidation and transsulfuration pathways were normal.
Findings:
- A novel defect in alpha-ketobutyrate oxidation was identified in the affected siblings.
- This defect represents a newly described condition within organic acid metabolism.
Implications:
- Understanding this defect aids in diagnosing similar cases of unexplained ketoacidosis.
- Further research into alpha-ketobutyrate metabolism is warranted.
- Potential for targeted therapeutic strategies for this specific metabolic disorder.