The Latest Data from the Interventions Testing Program: Nicotinamide Riboside has No Effect on Mouse Life Span

The Interventions Testing Program (ITP) at the National Institute on Aging runs very rigorous, costly life span studies in large numbers of mice, picking a few interventions to test each year. The usual outcome is that a treatment with some interesting past results is found to have absolutely no effect on life span when run through the rigor of the ITP process. We should all bear this in mind whenever modest life span extension in mice is reported by researchers elsewhere in the community. Based on past ITP data, a great many such results are the result of chance or poor experimental design. Will the ITP ever get around to testing senolytics or other potential rejuvenation therapies? Not soon, I'd imagine. Their bias is towards existing, approved drugs and supplements, calorie restriction mimetics, and similar classes of intervention that affect metabolism in well-explored ways: insulin signaling; blood pressure; inflammation; and so forth. Senolytics are likely not yet a well trodden enough path to get past the selection process. Today's open access paper reports the latest set of interventions to have shown minimal, gender specific, or no effects at all on mouse life span in the ITP process. Of interest to the community here, nicotinamide riboside supplementation is one of these, and does not extend mouse life span. We might compare that outcome to the 2016 paper in which mouse life span does increase modestly, the human trial in which benefits to cardiovascul...
Source: Fight Aging! - Category: Research Authors: Tags: Medicine, Biotech, Research Source Type: blogs