Cystic fibrosis mutations in North American populations of French ancestry: Analysis of Quebec French-Canadian and Louisiana Acadian families

  • Rima Rozen
  • , Robert H. Schwartz
  • , Bettina C. Hilman
  • , Pat Stanislovitis
  • , Glenn T. Horn
  • , Katherine Klinger
  • , Jocelyne Daigneault
  • , Marc De Braekeleer
  • , Bat Sheva Kerem
  • , Lap Chee Tsui
  • , T. Mary Fujiwara
  • , Kenneth Morgan*
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

A 3-bp deletion (ΔF508) in the cystic fibrosis (CF) gene is the mutation on the majority of CF chromosomes. We studied 112 CF families from North American populations of French ancestry: French-Canadian families referred from hospitals in three cities in Quebec and from the Saguenay-Lac St. Jean region of northeastern Quebec and Acadian families living in Louisiana. ΔF508 was present on 71%, 55%, and 70% of the CF chromosomes from the major-urban Quebec, Saguenay-Lac St. Jean, and Louisiana Acadian families, respectively. A weighted estimate of the proportion of ΔF508 in the French-Canadian patient population of Quebec was 70%. We found that 95% of the CF chromosomes with ΔF508 had D7S23 haplotype B, the most frequent haplotype on CF chromosomes. In the Saguenay-Lac St. Jean families, 86% of the CF chromosomes without ΔF508 had the B haplotype, compared with 31% for the major-urban Quebec and Louisiana Acadian families. The incidence of CF in the Saguenay-Lac St. Jean population was 1/895 live-born infants.

Original languageEnglish
Pages (from-to)606-610
Number of pages5
JournalAmerican Journal of Human Genetics
Volume47
Issue number4
StatePublished - Oct 1990
Externally publishedYes

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