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. 1989 Jun;44(6):827–834.

DNA marker haplotype association with pancreatic sufficiency in cystic fibrosis.

B S Kerem 1, J A Buchanan 1, P Durie 1, M L Corey 1, H Levison 1, J M Rommens 1, M Buchwald 1, L C Tsui 1
PMCID: PMC1715674  PMID: 2567116

Abstract

Patients with cystic fibrosis (CF) generally suffer from chronic obstructive lung disease, pancreatic insufficiency (PI), and a number of other exocrine malfunctions. Approximately 15% of CF patients are, however, pancreatic sufficient. To investigate whether the two clinical subgroups, PI and pancreatic sufficiency (PS), are caused by different CF mutant alleles, we have performed linkage disequilibrium and haplotype association analysis with three DNA markers that are tightly linked to the CF locus. The study showed that the allelic and haplotype distributions for these RFLPs are significantly different between the two groups. The data suggest that most of the CF-PI patients are probably descendants of a single mutational event at the CF locus and that the CF-PS patients resulted from multiple, different mutations. While final interpretation of these data awaits molecular cloning of the CF gene, the information on haplotype association in CF may be useful in genetic counseling and disease prognosis, in identifying the gene itself, and in defining the mutations.

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Selected References

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