Belenguer Varea Á, Mohamed Abdelaziz K, Avellana Zaragoza JA, Borrás Blasco C, Sanchis Aguilar P, Viña Ribes J. [Oxidative stress and longevity; a case-control study].
Rev Esp Geriatr Gerontol 2014;
50:16-21. [PMID:
25110143 DOI:
10.1016/j.regg.2014.05.011]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Revised: 05/14/2014] [Accepted: 05/30/2014] [Indexed: 02/07/2023]
Abstract
INTRODUCTION
Human longevity is a complex issue influenced by genetic and environmental factors. Oxidative stress (OE) could play an important role in this process. Succesful aging could be related with the organism ability facing OE. In the present study we compared malondialdehyde (MDA) and oxidized proteins (OP) plasma levels, in elderly people older than 97 years and 70-80 years old, to better understand the effects of OE on human longevity.
MATERIAL AND METHODS
Population-based case control study. We considered as cases patients who were born and live on la Ribera county in Valencia (Spain) older than 97 years old and who accepted to participate in the study. Controls were from the same poblational base, chosen randomly, and 70-80 years old. We made a descriptive analysis of sociodemographic, clinic and functional variables; an odds ratio (OR) estimation of being centenarian by OP and MDA quartiles; and a tendency analysis by Mantel-Haenszel test.
RESULTS
Twenty eight cases and 31 controls were included. Functional state and robust percentage were worse in cases. MDA (1,44±0,45 vs 1,84±0,59, p=0,005), and OP (64,29±15,73 vs. 76,52±13,44, p=0,002) levels, were significantly lower in cases. The OR of being centenarian in lower/higher quartile were 3,8 for MDA and 5,7 for OP, with a Mantel-Haenszel signification of 0,029 and 0,044 respectively.
CONCLUSIONS
In our study OE level were lower in centenarians than in younger elderly, and the lower the OE grade, the higher were the likelihood of being centenarian.
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