Through estrogen receptor antagonists, tamoxifen can reduce the risk of breast high-risk disease progression to cancer, but only reduce the probability of some ER and PR positive tumors, which has no preventive effect on triple negative breast cancer and HER-2 positive breast cancer. In the first hospital of Jilin University, the preparations containing antler ingredients have been clinically proven to be able to treat breast hyperplasia, which has been proved to be able to prevent breast cancer in basic research, and antler ingredients have been proved to be non-toxic and side effects in the treatment dose. This study aims to prove whether antler disk extract can be put into clinical practice to prevent breast precancerous lesions from developing into cancer.
