There appears to be a broad consensus that estrogen is a cause of breast cancer. Proof of cause and effect in clinical medicine requires a different approach for an epidemiological exposure (a 'mosaic' approach) than for an infectious agent suspected of causing a particular disease (a 'chain ...
Progesterone has not been linked with breast cancer. Exposure to high levels of estrogen, however, has been linked to the onset of the cancer. "... See full answer below.Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our ...
Mutations in these genes are inherited in an autosomal dominant manner with high penetrance. In addition, about 80% of all breast cancers are classified as estrogen-positive (ER+), in that estrogen influences the development and progression of the cancer....
"Alcohol raises the blood levels of estrogen … which is 'fuel' for some types of breast cancer," LoConte explained. Scientists think that when tumor cells have a receptor that estrogen can plug into, estrogen latches on and can make the tumor cell more active, revving up its growth and ...
There are no large studies that support the claims that deodorants or antiperspirants can cause breast cancer. They have different jobs -- deodorant blocks the smell and antiperspirant stops sweat. Many use chemicals that act like the hormone estrogen, which causes cancer cells to grow. These in...
Estrogen levels that aretoo high or too low can cause weight gain. High levels of estrogen in the body can irritate the cells that produce insulin in your body, making you insulin resistant and blood sugar levels rise, leading to weight gain. Low levels of estrogen can also cause a very ...
First, in affluent Westerners, body fat has been inversely related to premenopausal breast cancer risk. Second, body fat has been only weakly related to increased postmenopausal risk, despite strong links with endogenous estrogen levels. The inverse relation between body weight (typically body mass ...
ET included antiestrogen or aromatase inhibitors such tamoxifen and letrozole, respectively. Different CT regimens were used, according on the patient’s cancer type, stage, pathological and immunohistochemical analysis, and tolerance. Decision on who should receive postmastectomy RT depend on the ...
Studies of ethnicity-related variation in breast cancer burden within the USA have also demonstrated that African-American women are more likely to be diagnosed with estrogen receptor-negative, high-grade tumors that are node-positive.2-8 These disease patterns also characterize the tumors that occur...
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