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Interleukin-18 Polymorphism and Physical Functioning in Older People: A Replication Study and Meta-Analysis
Author(s) -
Kyla H Thomas,
Sajjad Rafiq,
Timothy M. Frayling,
Shah Ebrahim,
Meena Kumari,
J. Gallacher,
Luigi Ferrucci,
Stefania Bandinelli,
Robert B. Wallace,
David Melzer,
Richard M. Martin,
Yoav BenShlomo
Publication year - 2009
Publication title -
the journals of gerontology series a
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.134
H-Index - 189
eISSN - 1758-535X
pISSN - 1079-5006
DOI - 10.1093/gerona/glp092
Subject(s) - confidence interval , meta analysis , linear regression , demography , polymorphism (computer science) , gerontology , allele , medicine , replicate , psychology , genetics , biology , gene , statistics , mathematics , sociology
Levels of the proinflammatory cytokine interleukin-18 (IL-18) are raised in old age and are associated with reduced physical functioning. Previous studies have indicated that the C allele of the rs5744256 polymorphism in the IL-18 gene is strongly associated with reduced circulating IL-18 levels. This variant has previously been associated with improved locomotor performance in old age, but the finding requires independent replication.

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