alexa Dietary antiaging phytochemicals and mechanisms associated with prolonged survival.
Biochemistry

Biochemistry

Biochemistry & Analytical Biochemistry

Author(s): Si H, Liu D

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Abstract Aging is well-known an inevitable process that is influenced by genetic, lifestyle and environmental factors. However, the exact mechanisms underlying the aging process are not well understood. Increasing evidence shows that aging is highly associated with chronic increase in reactive oxygen species (ROS), accumulation of a low-grade proinflammatory phenotype and reduction in age-related autophagy, suggesting that these factors may play important roles in promoting aging. Indeed, reduction of ROS and low-grade inflammation and promotion of autophagy by calorie restriction or other dietary manipulation can extend lifespan in a wide spectrum of model organisms. Interestingly, recent studies show that some food-derived small molecules, also called phytochemicals, can extend lifespan in various animal species. In this paper, we review several recently identified potential antiaging phytochemicals that have been studied in cells, animals and humans and further highlight the cellular and molecular mechanisms underlying the antiaging actions by these molecules. Copyright © 2014 Elsevier Inc. All rights reserved.
This article was published in J Nutr Biochem and referenced in Biochemistry & Analytical Biochemistry

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