Abstract
Research with invertebrates over the past 10 years has suggested that alterations in insulin and/or insulin-like growth factor I (IGF-I) signalling result in increased lifespan and retard ageing. In this chapter, we describe the current research in mammalian systems with respect to the role of insulin or IGF-I in ageing. Using rodent models of caloric restriction and genetic mouse models, e.g. the Ames and Snell dwarf mice, fat-specific insulin receptor knockout mice (FIRKO) and mice that are heterozygous for the IGF-I receptor (Igf1r ±), investigators have shown that a reduction in plasma levels of insulin and/or IGF-I or reductions in insulin/IGF-I signalling appear to be correlated with increased longevity and retarded ageing.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 393-406 |
| Number of pages | 14 |
| Journal | Best Practice and Research: Clinical Endocrinology and Metabolism |
| Volume | 18 |
| Issue number | 3 |
| DOIs | |
| State | Published - Sep 2004 |
Keywords
- Caloric restriction
- Dwarf mice
- Insulin
- Insulin-like growth factor-I
ASJC Scopus subject areas
- Endocrinology, Diabetes and Metabolism
- Endocrinology
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