The Claim

Selenite supplementation at 100 nM increases glutathione peroxidase activity in human colon carcinoma (HT29) and mesothelioma (P31) cells, which reduces hydrogen peroxide-induced DNA single-strand breaks, but does not improve cell survival following hydrogen peroxide exposure, indicating that reduction in DNA damage does not necessarily result in enhanced cellular viability under oxidative stress.

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

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
40score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

How it works
1 study reviewed
In plain English

In laboratory-grown human cancer cells, adding a small amount of selenite boosts an enzyme that reduces DNA damage caused by hydrogen peroxide, but this does not help the cells survive the stress.

See the scientific wording

Increasing glutathione peroxidase activity in human colon carcinoma (HT29) and mesothelioma (P31) cells via 100 nM selenite supplementation reduces hydrogen peroxide-induced DNA single-strand breaks, but does not improve cell survival following peroxide exposure, indicating that DNA damage reduction does not necessarily translate to enhanced cellular viability under oxidative stress.

What the research says

1 study
  1. 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.

    Adding a small amount of selenium made cancer cells better at repairing DNA damage caused by hydrogen peroxide, but it didn’t help the cells survive longer — showing that fixing DNA doesn’t always mean the cell stays alive.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

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