Estrogens and organochlorine xenoestrogens and breast cancer risk

Starek, A

HERO ID

2163012

Reference Type

Journal Article

Subtype

Review

Year

2003

Language

English

PMID

12921380

HERO ID 2163012
Material Type Review
In Press No
Year 2003
Title Estrogens and organochlorine xenoestrogens and breast cancer risk
Authors Starek, A
Journal International Journal of Occupational Medicine and Environmental Health
Volume 16
Issue 2
Page Numbers 113-124
Abstract Breast cancer is responsible for considerable morbidity and the majority of female deaths in industrialized countries. In the etiology of breast cancer many endogenous and exogenous risk factors have been discussed. It is estimated that about 40% of all cancers in women are hormonally mediated. Both estrogens and androgens play critical roles in the development of breast cancer, which has been confirmed by numerous epidemiologic data on the levels of serum and urine hormons in populations at low and high risk, as well as by case-control and cohort studies. Estrogen carcinogenesis is attributed to receptor-mediated growth and proliferation of breast epithelial cells and to DNA impairment caused by activated estrogen metabolites, e.g., catechol estrogens and free radicals. In the last decade, the organochlorine chemicals, which include pesticides, polychlorinated biphenyl congeners and other representatives of the dioxin family, have been regarded as xenoestrogens. These chemicals are capable of modulating hormonally regulated processes and inducing changes in growth factors that may be responsible for carcinogenic effect. Many case-control studies have shown the distinct association between breast adipose tissue concentrations of several organochlorine xenoestrogens and breast cancer risk. Also in some studies, the women with breast cancer had higher organochlorine levels in serum as compared with controls.
Pmid 12921380
Is Certified Translation No
Dupe Override No
Is Public Yes
Language Text English