Effects of age, sex, and genotype on high-sensitivity metabolomic profiles in the fruit fly, Drosophila melanogaster.

Aging Cell · 2014 · PMC4116462 · PMID 24636523

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highly significantno p-value reported

These molecules, which make up the carnitine shuttle, are a key component of fatty acid metabolism and show an almost uniform, highly significant decline with age.

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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.