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Drosophila Nicotinamidase And Sir2 In Longevity Regulation And Oxidative Stress Response, And The Implications For Aging Theory, Gregory Miller

Wayne State University Dissertations

The protein deacetylase Sir2 has been shown to increase lifespan in a variety of organisms, possibly through its ability to engender the effects of dietary restriction. The Drosophila nicotinamidase DNAAM increases lifespan in a Sir2 dependant manner, and may play a role in oxidative stress resistance. Oxidative damage that accumulates in cells during normal aging contributes to a variety of diseases and pathologies, and can result in an increase in age specific mortality. Accordingly, the oxidative stress theory of aging predicts that organisms with an increased tolerance to oxidative damage will have an increased longevity, while organisms with decreased tolerance …