Fat Tissue Controls Lifespan Through Insulin Signaling in Fruit Flies
Graded Preliminary — genetic and proteomic experiments in fruit flies with no sample size or duration reported, still an animal model not yet tested in people.
Animal study. Findings may not carry over to people, which is why the grade is capped at Preliminary.
- Design
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- Participants
- Drosophila (fruit flies)
- Duration
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- Funding
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In fruit flies, dialing down a gene called Dicer-1 in fat tissue extended lifespan. It worked even when flies were already on calorie restriction. The mechanism involves a chain reaction: lower Dicer-1 reduces a small RNA molecule in fat, which boosts a hormone that then tells the brain to release less insulin. Less insulin signaling is a well-known longevity pathway across species.
Disclaimer: Research summaries are provided for informational purposes only and do not constitute medical advice. Always consult a qualified healthcare professional before making changes to your health routine.
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