Evidence map›Paper›PMID 9150155›Full record

ArticleAmerican journal of human genetics1997

Study of a single BRCA2 mutation with high carrier frequency in a small population.

S Thorlacius, S Sigurdsson, H Bjarnadottir, G Olafsdottir, J G Jonasson, L Tryggvadottir, H Tulinius, J E Eyfjörd

Abstract read
In one paragraph

Article in American journal of human genetics, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 88 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
88citing papers in PubMed, 3 pooled it
9.7field-weighted citation impact, top 2% 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

88 citing papers in PubMed, 3 syntheses or guidelines pooled it, 299 citations in OpenAlex.

  1. Pooled it
  2. Second cancers in patients with male breast cancer: a literature review.Journal of cancer survivorship : research and practice · 2008
    Pooled it
  3. 5-alpha Reductase Inhibitors and risk of male breast cancer: a systematic review and meta-analysis.International braz j urol : official journal of the Brazilian Society of Urology
    Pooled it
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  16. Genes · 2021
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  19. Analysis of ItalianCancers · 2021
    Article
  20. Article

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 1 institution in 1 country.

S ThorlaciusMolecular and Cell Biology Research Laboratory, University of Iceland, Reykjavik.
S Sigurdsson
H Bjarnadottir
G Olafsdottir
J G Jonasson
L Tryggvadottir
H Tulinius
J E Eyfjörd
Reykjavík University · IS

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Germ-line changes in the cancer-predisposition gene BRCA2 are found in a small proportion of breast cancers. Mutations in the BRCA2 gene have been studied mainly in families with high risk of breast cancer in females, and male breast cancer also has been associated with BRCA2 mutations. The importance of germ-line BRCA2 mutations in individuals without a family history of breast cancer is unknown. The same BRCA2 mutation has been found in 16/21 Icelandic breast cancer families, indicating a founder effect. We determined the frequency of this mutation, 999del5, in 1,182 Icelanders, comprising 520 randomly selected individuals from the population and a series of 632 female breast cancer patients (61.4% of patients diagnosed during the study period) and all male breast cancer patients diagnosed during the past 40 years. We detected the 999del5 germ-line mutation in 0.6% of the population, in 7.7% of female breast cancer patients, and in 40% of males with breast cancer. The mutation was strongly associated with onset of female breast cancer at age <50 years, but its penetrance and expression are varied. A number of cancers other than breast cancer were found to be increased in relatives of mutation carriers, including those with prostate and pancreatic cancer. Furthermore, germ-line BRCA2 mutation can be present without a strong family history of breast cancer. Comparison of the age at onset for mother/daughter pairs with the 999del5 mutation and breast cancer indicates that age at onset is decreasing in the younger generation. Increase in breast cancer incidence and lower age at onset suggest a possible contributing environmental factor.

Indexed as

Gene FrequencyHeterozygoteMutationAdultAgedAge of OnsetBRCA2 ProteinBreast NeoplasmsBreast Neoplasms, MaleFemaleFounder EffectGene ExpressionGenetic TestingHumansIcelandMaleBRCA2 ProteinNeoplasm ProteinsTranscription Factors

Identifiers

PMID9150155
PMCPMC1712443
OpenAlexW2164459004

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.