Genetic determinants of healthy longevity

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Genetic determinants of healthy longevity

Type: Doctoral Thesis
Title: Genetic determinants of healthy longevity
Author: Mooijaart, S.P.
Issue Date: 2007-12-04
Keywords: Aging
Longevity
Human
Vitamin D Receptor
Apolipoprotein E
Mortality
Abstract: Lifespan in under genetic control. In this thesis we translated genes regulating lifespan in model organisms to humans. First we identified DAF-12 as a critical gene for lifespan regulation in the nematode worm C. elegans. Then we found that the Liver X Receptors and the Vitamin D Receptor are the most similar human proteins. We tested these genetic variation in these human genes in the Leiden 85-plus Study and found them to associate with with lifespan and cognitive decline respectively. Apolipoprotein E is a target gene of the Liver X Receptor. We found that plasma levels of apolipoprotein E associated with increased risk of cardiovascular mortality, cognitive decline and stroke in a manner independent of classical cardiovascular risk factors. Finally we reviewed the evidence from human candidate gene studies. We conclude that the use of model organisms provides useful directions for research into the genetics of human longevity. However, as the human signalling systems are more complex and our environment is different from that of model organisms, it is unclear to what extent results obtained in model organisms can be extrapolated to humans.
Promotor: Supervisor: Westendorp R.G.J., Slagboom P.E. Co-Supervisor: Heemst D. van
Faculty: Leiden University Medical Center (LUMC)
University: Leiden University
Uri: urn:isbn:9789090224374
Handle: http://hdl.handle.net/1887/12477
 

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