Crossref journal-article
American Association for the Advancement of Science (AAAS)
Science (221)
Abstract

Reduced insulin-like signaling extends the life span of Caenorhabditis elegans and Drosophila . Here, we show that, in mice, less insulin receptor substrate–2 (Irs2) signaling throughout the body or just in the brain extended life span up to 18%. At 22 months of age, brain-specific Irs2 knockout mice were overweight, hyperinsulinemic, and glucose intolerant; however, compared with control mice, they were more active and displayed greater glucose oxidation, and during meals they displayed stable superoxide dismutase–2 concentrations in the hypothalamus. Thus, less Irs2 signaling in aging brains can promote healthy metabolism, attenuate meal-induced oxidative stress, and extend the life span of overweight and insulin-resistant mice.

Bibliography

Taguchi, A., Wartschow, L. M., & White, M. F. (2007). Brain IRS2 Signaling Coordinates Life Span and Nutrient Homeostasis. Science, 317(5836), 369–372.

Authors 3
  1. Akiko Taguchi (first)
  2. Lynn M. Wartschow (additional)
  3. Morris F. White (additional)
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Dates
Type When
Created 18 years, 1 month ago (July 19, 2007, 4:53 p.m.)
Deposited 1 year, 7 months ago (Jan. 10, 2024, 4:56 a.m.)
Indexed 4 weeks, 1 day ago (Aug. 7, 2025, 4:58 p.m.)
Issued 18 years, 1 month ago (July 20, 2007)
Published 18 years, 1 month ago (July 20, 2007)
Published Print 18 years, 1 month ago (July 20, 2007)
Funders 0

None

@article{Taguchi_2007, title={Brain IRS2 Signaling Coordinates Life Span and Nutrient Homeostasis}, volume={317}, ISSN={1095-9203}, url={http://dx.doi.org/10.1126/science.1142179}, DOI={10.1126/science.1142179}, number={5836}, journal={Science}, publisher={American Association for the Advancement of Science (AAAS)}, author={Taguchi, Akiko and Wartschow, Lynn M. and White, Morris F.}, year={2007}, month=jul, pages={369–372} }