Canavan disease: Biochemical and molecular studies
| Autor: | Reuben Matalon, Rajinder Kaul, K. Michals |
|---|---|
| Rok vydání: | 1993 |
| Předmět: |
medicine.medical_specialty
Pathology DNA Complementary Amniotic fluid Canavan Disease Prenatal diagnosis Gangliosidosis Amidohydrolases Pregnancy Prenatal Diagnosis Internal medicine Genetics medicine Animals Humans Sphingolipidosis Genetics (clinical) biology Genetic Carrier Screening Leukodystrophy medicine.disease Canavan disease Enzyme assay Aspartoacylase Endocrinology biology.protein Female |
| Zdroj: | Journal of Inherited Metabolic Disease. 16:744-752 |
| ISSN: | 1573-2665 0141-8955 |
| Popis: | Deficiency of the enzyme aspartoacylase and the accumulation of N-acetylaspartic acid lead to a severe leukodystrophy and spongy degeneration of the brain, Canavan disease (McKusick 271900). Since our discovery in 1988 of the defect in Canavan disease, 144 patients with Canavan disease have been diagnosed in our laboratory. Most of these children are of Ashkenazi Jewish extraction. The level of enzyme activity can be used for carrier testing. Prenatal diagnosis has been difficult using the enzyme assay owing to the low activity of aspartoacylase in cultured chorionic villus samples or amniocytes. The determination of N-acetylaspartic acid in the amniotic fluid is another parameter for diagnosis; however, the levels may not always be elevated. Bovine and human aspartoacylase have been purified in our laboratory. Bovine and human cDNA and genomic clones have been isolated and six exons have been localized. This information is being used for the study of Canavan disease at the molecular level. |
| Databáze: | OpenAIRE |
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