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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Mani, Arya Mani, Alaleh Houshyar, Roozbeh Broumand, Behrooz Nelson-williams, Carol Ahangar, Mehrabeh Taghavinejad, Mohammad-ali Radhakrishnan, Jayaram Zhao, Hongyu Meraji, Seyed-mahmoud Rezaie, Tayebeh M. Lifton, Richard P. |
| Spatial Coverage | Iran |
| Description | Author Affiliation: Mani A ( Department of Medicine and Genetics, Howard Hughes Medical Institute, Yale University School of Medicine, New Haven, CT 06510, USA.); |
| Abstract | The causes of many sporadic diseases are unexplained; the contribution of recessive loci with reduced penetrance is one possibility that has been difficult to explore. We describe an approach to this problem by first searching for diseases with higher prevalence in populations with high rates of consanguinity, then determining whether disease cases are more commonly the product of consanguinous union than controls in such populations, followed by analysis of genetic linkage in consanguinous cases. We demonstrate the utility of this approach by investigation of congenital heart disease in Iran. We found that patent ductus arteriosus (PDA), a common congenital heart disease, accounts for a higher fraction of congenital heart disease in Iran (15%) than in the United States (2-7%). Moreover, Iranian PDA cases demonstrated a marked increase of parental consanguinity (63%), compared with the general Iranian population (25%) or control cases with tetralogy of Fallot (30%). The recurrence of PDA among siblings was 5%. A genomewide analysis of linkage in 21 unrelated consanguinous PDA cases demonstrated a multipoint logarithm of odds score of 6.27 in favor of linkage of PDA to a 3-centimorgan interval of chromosome 12q24, with 53% of kindreds linked. These findings together establish a recessive component to PDA and implicate a single locus, PDA1, in one third or more of all PDA cases in Iran; they further suggest a role for this locus in PDA worldwide. Finally, these results suggest a general approach to the identification of recessive contributions to sporadic diseases. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 23 |
| Volume Number | 99 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 2002-11-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Chromosomes, Human, Pair 12 Ductus Arteriosus, Patent Genetics Pathology Genes, Recessive Chromosome Mapping Surgery Genetic Linkage Genotype Microsatellite Repeats Pedigree Polymorphism, Genetic Research Support, U.S. Gov't, P.H.S. Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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