Epigenetic contributions to cognitive aging: disentangling mindspan and lifespan.

Learn Mem · 2014 · PMC4175498 · PMID 25227252

Europe PMC DOI

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a clear trendno p-value reported

Negative results were also obtained with the more commonly used HDAC inhibitor, sodium butyrate, and indeed in this case there was a clear trend toward impaired memory with treatment.

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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.