Sci. STKE, 4 March 2003
Life-span Less Steroid Leads to Longer Life
Ecdysone is a steroid hormone best known for triggering the transition from larvae to adult in many insects. The biosynthetic machinery for ecdysone operates in the adult, too, but its purpose has been unclear. Simon et al. show that deficiencies in the ecdysone signaling system of adult Drosophila--either in biosynthesis or in its receptor--lead to flies with extended life-spans and an increased resistance to stress, without concomitant decreases in fertility or activity. Thus, steroids may be important players in the endocrine network that affects life-span in flies and other organisms.
Citation: Less Steroid Leads to Longer Life. Sci. STKE 2003, tw93 (2003).
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