Ginkgo biloba and ovarian cancer prevention: Epidemiological and biological evidence
2006; Elsevier BV; Volume: 251; Issue: 1 Linguagem: Inglês
10.1016/j.canlet.2006.10.025
ISSN1872-7980
AutoresBin Ye, Margarita Aponte, Yan Dai, Lily Li, Ming-Chih D. Ho, Allison F. Vitonis, Dale Edwards, Tai-Nang Huang, Daniel W. Cramer,
Tópico(s)Coenzyme Q10 studies and effects
ResumoThere is considerable interest in herbal therapies for cancer prevention but often with little scientific evidence to support their use. In this study, we examined epidemiological data regarding effects of commonly used herbal supplements on risk for ovarian cancer and sought supporting biological evidence. 4.2% of 721 controls compared to 1.6% of 668 cases regularly used Ginkgo biloba for an estimated relative risk (and 95% confidence interval) of 0.41 (0.20, 0.84) (p = 0.01); and the effect was most apparent in women with non-mucinous types of ovarian cancer, RR = 0.33 (0.15, 0.74) (p = 0.007). In vitro experiments with normal and ovarian cancer cells showed that Ginkgo extract and its components, quercetin and ginkgolide A and B, have significant anti-proliferative effects (∼40%) in serous ovarian cancer cells, but little effect in mucinous (RMUG-L) cells. For the ginkgolides, the inhibitory effect appeared to be cell cycle blockage at G0/G1 to S phase. This combined epidemiological and biological data provide supportive evidence for further studies of the chemopreventive or therapeutic effects of Ginkgo and ginkgolides on ovarian cancer.
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