National Center for Biotechnology Information ) 的文章→ http://www.ncbi.nlm.nih.gov/pubmed/16278617
The water extract of dong quai stimulated the growth of MCF-7 cells, possibly dependent of weak estrogen-agonistic activity, and augmented the BT-20 cell proliferation independent of estrogen receptor-mediated pathway. The present study provides data regarding the estrogen-like activity of dong quai, which might assist in decision making on herbal therapy use by women at risk for both estrogen-sensitive and insensitive breast cancer. Because of the lack of clinical data demonstrating the potential side effects of dong quai, its use in herbal preparations for the treatment of peri- or postmenopausal symptoms, especially in women with breast cancer, warrants caution pending further study.
還有 Memorial Sloan Kettering Cancer Center 也引述了NCBI的觀點 → https://www.mskcc.org/cancer-care/integrative-medicine/herbs/dong-quai
另外附上University of Maryland Medical Center 所針對當歸所提到的觀點 → http://umm.edu/health/medical/altmed/herb/dong-quai
You should not drink the essential oil of dong quai because it has a small amount of cancer-causing substances.
People who have chronic diarrhea or abdominal bloating should not use dong quai.
People who are at risk of hormone-related cancers, including breast, ovarian, and uterine cancers, should not take dong quai because researchers are not sure if it acts like estrogen in the body.
(請大家不要當NCBI、Memorial Sloan Kettering Cancer Center 、Memorial Sloan Kettering Cancer Center 是業障、假機構！)