In human cancer cells grown in the lab, hydrogen peroxide and t-butyl hydroperoxide do not produce detectable double-strand breaks or DNA-protein cross-links, indicating that the primary type of DNA damage caused by these substances under these conditions is single-strand breaks.

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Evidence from Studies

Supporting (1)

40

Community contributions welcome

40

Effects of variation in glutathione peroxidase activity on DNA damage and cell survival in human cells exposed to hydrogen peroxide and t-butyl hydroperoxide.

Cross-Sectional Study

Human & In Vitro

1990 Oct 1

The study found that hydrogen peroxide and t-butyl hydroperoxide didn’t break both strands of DNA or stick DNA to proteins in these cancer cells—only single strands got damaged. So yes, the claim is right.

Contradicting (0)

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No contradicting evidence found

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According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.

Source Study

Effects of variation in glutathione peroxidase activity on DNA damage and cell survival in human cells exposed to hydrogen peroxide and t-butyl hydroperoxide.

Score: 40

DOI: 10.1042/BJ2710017

Similar Assertions

In human cancer cells exposed to hydrogen peroxide, higher levels of glutathione peroxidase reduce certain types of DNA damage but do not prevent cell death, suggesting that this specific DNA damage is not the main reason cells die under these conditions.

40

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78%

In laboratory-grown human cancer cells, adding a specific form of selenium reduces DNA damage from a chemical oxidant in one type of cell (mesothelioma) but not in another (colon cancer), showing that different cancer cells respond differently to the same treatment.

40

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70%