Investigating the use of metformin for the prevention of endometrial cancer

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Endometrial (uterine) cancer affects approximately 3% of women. Obesity and oestrogen exposure are risk factors for this cancer. A novel approach to prevent endometrial cancer would be to oppose the effects of insulin and oestrogen on endometrial cell growth. This study will investigate whether metformin, commonly used to treat diabetes, blocks cellular pathways by which oestrogen and insulin stimulate endometrial cell growth, and thus evaluate the possibility that metformin might be useful in preventing endometrial cancer.