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Diagnostic chest X-rays and breast cancer risk among women with a hereditary predisposition to breast cancer unexplained by a BRCA1 or BRCA2 mutation
- Source :
- Breast Cancer Research, Breast Cancer Research, 2021, 23 (1), ⟨10.1186/s13058-021-01456-1⟩, Breast Cancer Research, BioMed Central, 2021, 23 (1), ⟨10.1186/s13058-021-01456-1⟩, Breast Cancer Research : BCR, Breast Cancer Research, Vol 23, Iss 1, Pp 1-18 (2021)
- Publication Year :
- 2021
- Publisher :
- HAL CCSD, 2021.
-
Abstract
- Background Diagnostic ionizing radiation is a risk factor for breast cancer (BC). BC risk increases with increased dose to the chest and decreases with increased age at exposure, with possible effect modification related to familial or genetic predisposition. While chest X-rays increase the BC risk of BRCA1/2 mutation carriers compared to non-carriers, little is known for women with a hereditary predisposition to BC but who tested negative for a BRCA1 or BRCA2 (BRCA1/2) mutation. Methods We evaluated the effect of chest X-rays from diagnostic medical procedures in a dataset composed of 1552 BC cases identified through French family cancer clinics and 1363 unrelated controls. Participants reported their history of X-ray exposures in a detailed questionnaire and were tested for 113 DNA repair genes. Logistic regression and multinomial logistic regression models were used to assess the association with BC. Results Chest X-ray exposure doubled BC risk. A 3% increased BC risk per additional exposure was observed. Being 20 years old or younger at first exposure or being exposed before first full-term pregnancy did not seem to modify this risk. Birth after 1960 or carrying a rare likely deleterious coding variant in a DNA repair gene other than BRCA1/2 modified the effect of chest X-ray exposure. Conclusion Ever/never chest X-ray exposure increases BC risk 2-fold regardless of age at first exposure and, by up to 5-fold when carrying 3 or more rare variants in a DNA repair gene. Further studies are needed to evaluate other DNA repair genes or variants to identify those which could modify radiation sensitivity. Identification of subpopulations that are more or less susceptible to ionizing radiation is important and potentially clinically relevant.
- Subjects :
- Adult
Risk
Oncology
medicine.medical_specialty
DNA Repair
DNA repair
[SDV]Life Sciences [q-bio]
Genes, BRCA2
Genes, BRCA1
Breast Neoplasms
X-ray exposure
Logistic regression
Young Adult
03 medical and health sciences
0302 clinical medicine
Breast cancer
Risk Factors
Surgical oncology
Internal medicine
medicine
Genetic predisposition
Humans
Genetic Predisposition to Disease
030212 general & internal medicine
Risk factor
RC254-282
High-risk population
Pregnancy
DNA repair genes
business.industry
Neoplasms. Tumors. Oncology. Including cancer and carcinogens
Cancer
Middle Aged
medicine.disease
3. Good health
Radiography
[SDV] Life Sciences [q-bio]
Low dose
030220 oncology & carcinogenesis
Mutation
Female
business
Research Article
Subjects
Details
- Language :
- English
- ISSN :
- 14655411 and 1465542X
- Database :
- OpenAIRE
- Journal :
- Breast Cancer Research, Breast Cancer Research, 2021, 23 (1), ⟨10.1186/s13058-021-01456-1⟩, Breast Cancer Research, BioMed Central, 2021, 23 (1), ⟨10.1186/s13058-021-01456-1⟩, Breast Cancer Research : BCR, Breast Cancer Research, Vol 23, Iss 1, Pp 1-18 (2021)
- Accession number :
- edsair.doi.dedup.....87cab5c24d6a21acff245b356260093e