乳腺癌是女性最常见的恶性肿瘤之一,严重危害女性身心健康。流行病学资料显示发病年龄多在40~60岁,尤以45~49岁(更年期)和60~64岁(绝经后)最多见,但其发病机制并未完全明了。一直以来,肥胖症被认为是乳腺癌的一个危险因素,在乳腺癌的发生中起一定的作用。随着分子生物学技术的 Breast cancer is one of the most common malignant tumors in women, seriously endangering women’s physical and mental health. Epidemiological data show that the onset age more than 40 to 60 years of age, especially 45 to 49 years (menopause) and 60 to 64 years (postmenopausal) the most common, but its pathogenesis is not completely understood. Obesity has long been considered a risk factor for breast cancer and plays a role in the development of breast cancer. With the technology of molecular biology