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Breast Cancer
Study finds no link between melatonin levels and decreased cancer risk
April 6th, 2004
No link between levels of the hormone melatonin and decreased breast cancer risk in women was found in a study conducted in the U.K. Experiments in animals have suggested that melatonin, a pineal hormone, has a protective role in the development of breast cancer, but results from several human studies have been inconsistent. Ruth C. Travis, MSc, of Cancer Research U.K., and colleagues compared levels of a metabolite of melatonin in the urine of 127 patients diagnosed with breast cancer with those of 353 control women to determine whether low levels of melatonin were associated with an increased risk for developing breast cancer. ...
Source: Cancer Weekly (2004-04-06)
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