Investigation of systemic folate status, impact of alcohol intake and levels of DNA damage in mononuclear cells of breast cancer patients
2005

Folate Status and DNA Damage in Breast Cancer Patients

Sample size: 94 publication Evidence: moderate

Author Information

Author(s): Hussien M M I, McNulty H, Armstrong N, Johnston P G, Spence R A J, Barnett Y

Primary Institution: Breast Surgery Unit, Belfast City Hospital

Hypothesis

The study aims to compare folate status and levels of DNA damage between breast cancer and benign breast disease control patients.

Conclusion

Breast cancer patients had significantly higher levels of DNA damage compared to benign breast disease control patients, although differences in folate status were not statistically significant.

Supporting Evidence

  • Breast cancer patients had a mean tail moment of DNA damage significantly higher than controls.
  • Lower red cell folate levels were observed in breast cancer patients compared to controls.
  • DNA damage was positively correlated with alcohol intake in breast cancer patients.

Takeaway

This study looked at how folate levels and DNA damage are related in women with breast cancer compared to those with benign breast issues, finding more DNA damage in cancer patients.

Methodology

Fasting blood samples were taken from breast cancer patients and benign breast disease controls to measure red cell folate and plasma homocysteine, and DNA damage was analyzed using the comet assay.

Limitations

The study had a small sample size, which may limit the ability to detect significant differences.

Participant Demographics

64 breast cancer patients (mean age 57 years) and 30 benign breast disease control patients (mean age 51 years).

Statistical Information

P-Value

P=0.24 for RCF, P=0.073 for plasma homocysteine, P<0.0001 for DNA damage.

Confidence Interval

95% confidence interval for RCF in breast cancer patients was 339.07 (333.3–404.6) vs 379.5 (335.8–505.2) in controls.

Statistical Significance

p<0.0001

Digital Object Identifier (DOI)

10.1038/sj.bjc.6602530

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