Oxidative stress is not a major contributor to somatic mitochondrial DNA mutations.

PLoS Genet · 2014 · PMC3916223 · PMID 24516391

Europe PMC DOI

hedged sentences

0.0900

closest p · 1.8× alpha

0.0900

boldest claim

The sentences

did not reach statistical significancep = 0.09so close (0.05 < p ≤ 0.1)

However, this difference did not reach statistical significance (p = 0.09, Student's t-test).

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a clear trendno p-value reported

Although we did not observe a statistically significant increase in the mtDNA mutation frequency in the Ogg1; Sod2 double mutants, there was a clear trend in this direction.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.