The catalase -262C/T promoter polymorphism and aging phenotypes

Lene Christiansen, Hans Christian Petersen, Lise Bathum, Henrik Frederiksen, Matt McGue, Kaare Christensen

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

A low level of the central antioxidant enzyme catalase has been suggested to be a risk factor for diseases influenced by oxidative stress. In this study, we investigated the possible association of the catalase -262C/T polymorphism with survival, physical and cognitive functioning, and a number of oxidative stress-mediated disorders. The study population was 2223 Danish individuals, aged 45-93 years, drawn from three population-based surveys. The results suggest that the catalase -262C/T polymorphism is not associated with either survival, or the majority of the age-related phenotypes investigated. However, our data indicate a statistical significant association of TT homozygosity with improved physical functioning as well as a trend of the T allele conferring an improved general cognitive functioning, although these results did not remain significant after correcting for multiple testing. The results raise the hypothesis that the catalase -262T allele serves as protection against neurodegenerative and physical decline, although replication in other studies is warranted for confirmation of these findings.

Original languageEnglish (US)
Pages (from-to)886-889
Number of pages4
JournalJournals of Gerontology - Series A Biological Sciences and Medical Sciences
Volume59
Issue number9
DOIs
StatePublished - Sep 2004

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