Rotavirus infection activates the UPR but modulates its activity.

Virol J · 2011 · PMC3149005 · PMID 21774819

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showed a trendno p-value reported

GRP94 was up-regulated by IFN treatment, and GRP78 showed a trend toward increased levels, but was determined to be not significant.

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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.