Breast Adipose Tissue Concentrations of Polychlorinated Biphenyls and Other Organochlorines and Breast Cancer Risk

Numerous studies have examined the relationship between organochlorines and breast cancer, but the results are not consistent. In most studies, organochlorines were measured in serum, but levels in breast adipose tissue are higher and represent cumulative internal exposure at the target site for bre...

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Veröffentlicht in:Cancer epidemiology, biomarkers & prevention biomarkers & prevention, 2000-01, Vol.9 (1), p.55-63
Hauptverfasser: ARONSON, K. J, MILLER, A. B, HANNA, W. M, SENGUPTA, S. K, WEBER, J.-P, WOOLCOTT, C. G, STERNS, E. E, MCCREADY, D. R, LICKLEY, L. A, FISH, E. B, HIRAKI, G. Y, HOLLOWAY, C, ROSS, T
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container_title Cancer epidemiology, biomarkers & prevention
container_volume 9
creator ARONSON, K. J
MILLER, A. B
HANNA, W. M
SENGUPTA, S. K
WEBER, J.-P
WOOLCOTT, C. G
STERNS, E. E
MCCREADY, D. R
LICKLEY, L. A
FISH, E. B
HIRAKI, G. Y
HOLLOWAY, C
ROSS, T
description Numerous studies have examined the relationship between organochlorines and breast cancer, but the results are not consistent. In most studies, organochlorines were measured in serum, but levels in breast adipose tissue are higher and represent cumulative internal exposure at the target site for breast cancer. Therefore, a hospital-based case-control study was conducted in Ontario, Canada to evaluate the association between breast cancer risk and breast adipose tissue concentrations of several organochlorines. Women scheduled for excision biopsy of the breast were enrolled and completed a questionnaire. The biopsy tissue of 217 cases and 213 benign controls frequency matched by study site and age in 5-year groups was analyzed for 14 polychlorinated biphenyl (PCB) congeners, total PCBs, and 10 other organochlorines, including p,p′-1,1-dichloro-2,2-bis( p -chlorophenyl)ethylene. Multiple logistic regression was used to assess the magnitude of risk. While adjusting for age, menopausal status, and other factors, odds ratios (ORs) were above 1.0 for almost all organochlorines except five pesticide residues. The ORs were above two in the highest concentration categories of PCB congeners 105 and 118, and the ORs for these PCBs increased linearly across categories ( P s for trend≤ 0.01). Differences by menopausal status are noted especially for PCBs 105 and 118, with risks higher among premenopausal women, and for PCBs 170 and 180, with risks higher among postmenopausal women. Clear associations with breast cancer risk were demonstrated in this study for some PCBs measured in breast adipose tissue.
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Differences by menopausal status are noted especially for PCBs 105 and 118, with risks higher among premenopausal women, and for PCBs 170 and 180, with risks higher among postmenopausal women. Clear associations with breast cancer risk were demonstrated in this study for some PCBs measured in breast adipose tissue.</abstract><cop>Philadelphia, PA</cop><pub>American Association for Cancer Research</pub><pmid>10667464</pmid><tpages>9</tpages></addata></record>
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source MEDLINE; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; American Association for Cancer Research
subjects Adipose Tissue - chemistry
Age Factors
Biological and medical sciences
Biopsy
Breast - chemistry
Breast Neoplasms - etiology
Case-Control Studies
Dichlorodiphenyl Dichloroethylene - analysis
Environmental Exposure
Environmental Pollutants - analysis
Environmental Pollutants - blood
Environmental Pollutants - classification
Female
Gynecology. Andrology. Obstetrics
Humans
Insecticides - analysis
Insecticides - blood
Insecticides - classification
Logistic Models
Mammary gland diseases
Medical sciences
Middle Aged
Odds Ratio
Ontario
Pesticide Residues - analysis
Polychlorinated Biphenyls - analysis
Polychlorinated Biphenyls - blood
Polychlorinated Biphenyls - classification
Postmenopause
Premenopause
Risk Factors
Surveys and Questionnaires
Tumors
title Breast Adipose Tissue Concentrations of Polychlorinated Biphenyls and Other Organochlorines and Breast Cancer Risk
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