Hepatic oxidative DNA damage is associated with increased risk for hepatocellular carcinoma in chronic hepatitis C
2008

Oxidative Stress and Liver Cancer in Chronic Hepatitis C

Sample size: 118 publication Evidence: high

Author Information

Author(s): Tanaka H, Fujita N, Sugimoto R, Urawa N, Horiike S, Kobayashi Y, Iwasa M, Ma N, Kawanishi S, Watanabe S, Kaito M, Takei Y

Primary Institution: Mie University Graduate School of Medicine

Hypothesis

The study investigates the role of oxidative DNA damage in the development of hepatocellular carcinoma (HCC) in patients with chronic hepatitis C.

Conclusion

The study found that oxidative DNA damage is associated with an increased risk of HCC in patients with chronic hepatitis C.

Supporting Evidence

  • During the follow-up, HCC was identified in 36 patients (30.5%).
  • Hepatic 8-OHdG levels were significantly higher in patients who developed HCC compared to those who did not.
  • Cox proportional hazard analysis identified hepatic 8-OHdG as an independent predicting factor for HCC.

Takeaway

This study shows that damage to DNA caused by oxidative stress can make people with chronic hepatitis C more likely to get liver cancer.

Methodology

The study measured levels of 8-hydroxydeoxyguanosine (8-OHdG) in liver biopsy samples from patients and followed them for HCC development over a mean period of 6.7 years.

Limitations

The study excluded patients with a history of interferon treatment and those with concurrent diseases that could affect oxidative stress.

Participant Demographics

The study included 118 patients (66 males and 52 females) with a mean age of 55.8 years.

Statistical Information

P-Value

P=0.0058

Confidence Interval

1.12–1.97

Statistical Significance

p<0.0001

Digital Object Identifier (DOI)

10.1038/sj.bjc.6604204

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