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The complex genetics of gait speed: genome-wide meta-analysis approach

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posted on 2023-05-19, 03:53 authored by Ben-Avraham, D, Karasik, D, Verghese, J, Lunetta, KL, Smith, JA, Eicher, JD, Vered, R, Deelen, J, Arnold, AM, Buchman, AS, Tanaka, T, Faul, JD, Nethander, M, Fornage, M, Adams, HH, Matteini, AM, Michele CallisayaMichele Callisaya, Smith, AV, Yu, L, De Jager, PL, Evans, DA, Gudnason, V, Hofman, A, Pattie, A, Corley, J, Launer, LJ, Knopman, DS, Parimi, N, Turner, ST, Bandinelli, S, Beekman, M, Gutman, D, Sharvit, L, Mooijaart, SP, Liewald, DC, Houwing-Duistermaat, JJ, Ohlsson, C, Moed, M, Verlinden, VJ, Mellstrom, D, van der Geest, JN, Karlsson, M, Hernandez, D, Rebekah McWhirterRebekah McWhirter, Liu, Y, Russell Thomson, Tranah, GJ, Uitterlinden, AG, Weir, DR, Zhao, W, Starr, JM, Johnson, AD, Ikram, MA, Bennett, DA, Cummings, SR, Deary, IJ, Harris, TB, Kardia, SLR, Mosley, TH, Srikanth, VK, Windham, BG, Newman, AB, Walston, JD, Davies, G, Evans, DS, Slagboom, EP, Ferrucci, L, Kiel, DP, Murabito, JM, Atzmon, G
Emerging evidence suggests that the basis for variation in late-life mobility is attributable, in part, to genetic factors, which may become increasingly important with age. Our objective was to systematically assess the contribution of genetic variation to gait speed in older individuals. We conducted a meta-analysis of gait speed GWASs in 31,478 older adults from 17 cohorts of the CHARGE consortium, and validated our results in 2,588 older adults from 4 independent studies. We followed our initial discoveries with network and eQTL analysis of candidate signals in tissues. The meta-analysis resulted in a list of 536 suggestive genome wide significant SNPs in or near 69 genes. Further interrogation with Pathway Analysis placed gait speed as a polygenic complex trait in five major networks. Subsequent eQTL analysis revealed several SNPs significantly associated with the expression of PRSS16, WDSUB1 and PTPRT, which in addition to the meta-analysis and pathway suggested that genetic effects on gait speed may occur through synaptic function and neuronal development pathways. No genome-wide significant signals for gait speed were identified from this moderately large sample of older adults, suggesting that more refined physical function phenotypes will be needed to identify the genetic basis of gait speed in aging.

History

Publication title

Aging

Volume

9

Pagination

209-246

ISSN

1945-4589

Department/School

Menzies Institute for Medical Research

Publisher

Impact Journals LLC

Place of publication

United States

Rights statement

Copyright 2017 the Author Licenced under Creative Commons Attribution 3.0 Unported (CC BY 3.0) https://creativecommons.org/licenses/by/3.0/

Repository Status

  • Open

Socio-economic Objectives

Health related to ageing

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