The relationship between mitochondrial genotype and clinical phenotype is complicated in most instances by the heteroplasmic nature of pathogenic mitochondrial mutations. We have previously shown that maternally inherited hearing loss in a large Arab-Israeli kindred is due to the homoplasmic A1555G
Genetics of IDDM: Evidence for complex inheritance with HLA
โ Scribed by Dr. Neil Risch
- Publisher
- John Wiley and Sons
- Year
- 1989
- Tongue
- English
- Weight
- 361 KB
- Volume
- 6
- Category
- Article
- ISSN
- 0741-0395
No coin nor oath required. For personal study only.
โฆ Synopsis
Analysis of the Fifth Genetic Analysis Workshop (GAWS) insulin-dependent diabetes mellitus (IDDM) data leads to the following conclusions: 1) With a maximum-likelihood affected sib pair method, there is strong evidence for linkage with HLA and no evidence for linkage with INS, Gm, or Km. 2) Susceptibility as defined by HLA genotypes is very complex. Each DR allele has a unique susceptibility, and DR3 and DR4 haplotype associations for DR 3/4 genotypes are different from those for 3/X and 4/X. 3) Risk is substantially higher in sibships with an affected father compared to those with an affected mother. This excess cannot be attributed to transmission distortion at HLA.
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