Combining Life Extension Treatments: A Proposal for High-Throughput Testing in Rodents

Biochemistry. Biokhimii︠a︡
Josh Mitteldorf

Abstract

An experimental design is proposed for high-throughput testing of combined interventions that might increase life expectancy in rodents. There is a growing backlog of promising treatments that have never been tested in mammals, and known treatments have not been tested in combination. The dose-response curve is often nonlinear, as are the interactions among different therapies. Herein are proposed two experimental designs optimized for detecting high-value combinations. In Part I, numerical simulation is used to explore a protocol for testing different dosages of a single intervention. With reasonable and general biological assumptions about the dose-response curve, information is maximized when each animal receives a different dosage. In Part II, numerical simulation is used to explore a protocol for testing interactions among many combinations of treatments, once their individual dosages have been established. Combinations of three are identified as a sweet spot for statistics. To conserve resources, the protocol is designed to identify those outliers that lead to life extension greater than 50%, but not to offer detailed survival curves for any treatments. Every combination of three treatments from a universe of 15 total tre...Continue Reading

References

May 27, 2017·Oncotarget·Mikhail V Blagosklonny

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