Mammalian models of extended healthy lifespan

Selman, C. and Withers, D.J. (2011) Mammalian models of extended healthy lifespan. Philosophical Transactions of the Royal Society B: Biological Sciences, 366(1561), pp. 99-107. (doi: 10.1098/rstb.2010.0243)

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Abstract

Over the last two centuries, there has been a significant increase in average lifespan expectancy in the developed world. One unambiguous clinical implication of getting older is the risk of experiencing age-related diseases including various cancers, dementia, type-2 diabetes, cataracts and osteoporosis. Historically, the ageing process and its consequences were thought to be intractable. However, over the last two decades or so, a wealth of empirical data has been generated which demonstrates that longevity in model organisms can be extended through the manipulation of individual genes. In particular, many pathological conditions associated with the ageing process in model organisms, and importantly conserved from nematodes to humans, are attenuated in long-lived genetic mutants. For example, several long-lived genetic mouse models show attenuation in age-related cognitive decline, adiposity, cancer and glucose intolerance. Therefore, these long-lived mice enjoy a longer period without suffering the various sequelae of ageing. The greatest challenge in the biology of ageing is to now identify the mechanisms underlying increased healthy lifespan in these model organisms. Given that the elderly are making up an increasingly greater proportion of society, this focused approach in model organisms should help identify tractable interventions that can ultimately be translated to humans.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Selman, Professor Colin
Authors: Selman, C., and Withers, D.J.
College/School:College of Medical Veterinary and Life Sciences > Institute of Biodiversity Animal Health and Comparative Medicine
Journal Name:Philosophical Transactions of the Royal Society B: Biological Sciences
Publisher:The Royal Society
ISSN:0962-8436
Published Online:29 November 2010
Copyright Holders:Copyright © 2011 The Royal Society
First Published:First published in Philosophical Transactions of the Royal Society B: Biological Sciences 366(1561):99-107
Publisher Policy:Reproduced under a Creative Commons License

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