The role of early life genistein exposures in modifying breast cancer risk
2008

Genistein and Breast Cancer Risk

publication Evidence: moderate

Author Information

Author(s): Warri A, Saarinen N M, Makela S, Hilakivi-Clarke L

Primary Institution: Functional Foods Forum, University of Turku, Turku, Finland

Hypothesis

Does early life exposure to genistein reduce the risk of developing breast cancer later in life?

Conclusion

Early life exposure to genistein may reduce the risk of breast cancer, particularly when exposure occurs before puberty.

Supporting Evidence

  • Consumption of soy foods during childhood and adolescence is linked to reduced breast cancer risk.
  • Animal studies show that exposure to genistein before puberty has protective effects against mammary tumors.
  • Meta-analyses indicate a modest reduction in breast cancer risk associated with soy intake.

Takeaway

Eating soy foods when you're young might help keep your breasts healthy when you grow up.

Methodology

Review of existing literature and meta-analyses of human and animal studies.

Potential Biases

Potential biases in human studies due to confounding lifestyle factors.

Limitations

The studies reviewed have varying methodologies and results, making it difficult to draw definitive conclusions.

Participant Demographics

Focus on women and animal models, particularly rats and mice.

Digital Object Identifier (DOI)

10.1038/sj.bjc.6604321

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