Effects of Genistein and Zearalenone on Breast Cancer Risk
Author Information
Author(s): Hilakivi-Clarke L, Onojafe I, Raygada M, Cho E, Skaar T, Russo I, Clarke R
Primary Institution: Lombardi Cancer Center, Georgetown University
Hypothesis
Does prepubertal exposure to genistein or zearalenone affect mammary tumorigenesis?
Conclusion
Prepubertal exposure to zearalenone significantly reduces mammary tumor incidence and multiplicity, while genistein reduces tumor multiplicity but not incidence.
Supporting Evidence
- Zearalenone exposure significantly reduced both the incidence and multiplicity of mammary tumors.
- Genistein exposure significantly reduced tumor multiplicity but not tumor incidence.
- 60% of tumors in the genistein group were not malignant.
- A higher number of differentiated alveolar buds were present in the phyto-oestrogen exposed rats.
Takeaway
Giving young rats a small amount of certain plant compounds can help protect their breasts from cancer.
Methodology
Rats were treated with genistein or zearalenone from postnatal days 7 to 20 and then assessed for mammary tumors.
Limitations
The study was conducted on rats, which may not fully represent human responses.
Participant Demographics
Prepubertal rats were used in the study.
Digital Object Identifier (DOI)
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