Evidence map›Paper›PMID 9792861›Full record

ArticleAmerican journal of human genetics1998

Founder BRCA1 and BRCA2 mutations in French Canadian breast and ovarian cancer families.

P N Tonin, A M Mes-Masson, P A Futreal, K Morgan, M Mahon, W D Foulkes, D E Cole, D Provencher, P Ghadirian, S A Narod

Open access · bronzeAbstract read
In one paragraph

Article in American journal of human genetics, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 62 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
62citing papers in PubMed, 2 pooled it
7.0field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

62 citing papers in PubMed, 2 syntheses or guidelines pooled it, 169 citations in OpenAlex.

  1. Pooled it
  2. Guideline
  3. The Genetic and Molecular Analyses of Rare Candidate GermlineInternational journal of molecular sciences · 2026
    Article
  4. Hereditary ovarian cancer.Discover oncology · 2026
    Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Review
  13. Article
  14. Review
  15. Article
  16. Review
  17. Article
  18. Review
  19. Review
  20. A curated gene list for reporting results of newborn genomic sequencing.Genetics in medicine : official journal of the American College of Medical Genetics · 2017
    Article

2 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 7 institutions in 2 countries.

P N ToninDepartments of Human Genetics and Medicine, Division of Medical Genetics, McGill University, Montreal, Quebec, Canada. tonin@medcor.mcgill.ca
A M Mes-Masson
P A Futreal
K Morgan
M Mahon
W D Foulkes
D E Cole
D Provencher
P Ghadirian
S A Narod
Hôpital Notre-Dame · CAMcGill University · CADuke Medical Center · USMontreal General Hospital · CAToronto General Hospital · CAUniversité de Montréal · CAWomen's College Hospital · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We have identified four mutations in each of the breast cancer-susceptibility genes, BRCA1 and BRCA2, in French Canadian breast cancer and breast/ovarian cancer families from Quebec. To identify founder effects, we examined independently ascertained French Canadian cancer families for the distribution of these eight mutations. Mutations were found in 41 of 97 families. Six of eight mutations were observed at least twice. The BRCA1 C4446T mutation was the most common mutation found, followed by the BRCA2 8765delAG mutation. Together, these mutations were found in 28 of 41 families identified to have a mutation. The odds of detection of any of the four BRCA1 mutations was 18.7x greater if one or more cases of ovarian cancer were also present in the family. The odds of detection of any of the four BRCA2 mutations was 5.3x greater if there were at least five cases of breast cancer in the family. Interestingly, the presence of a breast cancer case <36 years of age was strongly predictive of the presence of any of the eight mutations screened. Carriers of the same mutation, from different families, shared similar haplotypes, indicating that the mutant alleles were likely to be identical by descent for a mutation in the founder population. The identification of common BRCA1 and BRCA2 mutations will facilitate carrier detection in French Canadian breast cancer and breast/ovarian cancer families.

Indexed as

Genes, BRCA1Point MutationSequence DeletionBRCA1 ProteinBRCA2 ProteinBreast NeoplasmsCanadaDNA PrimersFamilyFemaleFranceGenes, Tumor SuppressorGenetic MarkersHumansMiddle AgedNeoplasm ProteinsBRCA1 ProteinBRCA2 ProteinDNA PrimersGenetic MarkersNeoplasm ProteinsTranscription Factors

Identifiers

PMID9792861
PMCPMC1377544
OpenAlexW1983423794

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.