The quaking [or quakingviable (qk[v])] mutant mouse, which exhibits severe dysmyelination of the central nervous system (CNS), has been studied extensively over the last 30 years. The genetic defect responsible for the dysmyelinating phenotype had remained elusive, however, until the recent cloning
Molecular defects in the chondrodysplasias
โ Scribed by Rimoin, David L.
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 24 KB
- Volume
- 63
- Category
- Article
- ISSN
- 0148-7299
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โฆ Synopsis
There has been a recent explosion of knowledge concerning the biochemical and molecular defects in the skeletal dysplasias. Through both the candidate gene approach and positional cloning, specific gene defects that produce the skeletal dysplasias have been identified and may be classified into several general categories: 1) qualitative or quantitative abnormalities in the structural proteins of cartilage; 2) inborn errors of cartilage metabolism; 3) defects in local regulators of cartilage growth; and 4) systemic defects influencing cartilage development.
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Neural tube defects (NTDs) are some of the most common human malformations. The vast majority of NTDs can be prevented by the administration of folic acid; however, to date there has been no effective treatment of folic acid-resistant NTDs. A recent paper 1 has confirmed an earlier report 2 that the