Comment on "Nicotinamide mononucleotide increases muscle insulin sensitivity in prediabetic women".

Brenner, Charles · Science · 2021

editorial · Level V

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Abstract

Yoshino <i>et al</i> (Reports, 11 June 2021, p. 1224) have reported that nicotinamide mononucleotide (NMN) increases muscle insulin sensitivity in prediabetic women. However, the 13 women who received NMN had hepatic lipid content of 6.3 ± 1.2%, whereas the 12 in the placebo group had 14.8 ± 2.0% (<i>P</i> = 0.003). Given that a target of NMN is liver fat clearance, this was not an effectively randomized trial.

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