Relationships of GDF8 and 11 and Their Antagonists With Decline of Grip Strength Among Older Adults in the Baltimore Longitudinal Study of Aging.

Autor:	Yamaguchi Y; Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.; Graduate School of Health Sciences, Kobe University, Kobe, Hyogo, Japan., Zhu M; National Institutes on Aging, National Institutes of Health, Baltimore, Maryland, USA., Moaddel R; National Institutes on Aging, National Institutes of Health, Baltimore, Maryland, USA., Palchamy E; National Institutes on Aging, National Institutes of Health, Baltimore, Maryland, USA., Ferrucci L; National Institutes on Aging, National Institutes of Health, Baltimore, Maryland, USA., Semba RD; Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.; Center for a Livable Future, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA.
Jazyk:	angličtina
Zdroj:	The journals of gerontology. Series A, Biological sciences and medical sciences [J Gerontol A Biol Sci Med Sci] 2023 Oct 09; Vol. 78 (10), pp. 1793-1798.
DOI:	10.1093/gerona/glad135
Abstrakt:	Although growth/differentiation factor 11 (GDF11), growth/differentiation factor 8 (GDF8), and their circulating antagonists, which include GDF11 and GDF8 propeptides, follistatin (FST), WAP, Follistatin/Kazal, Immunoglobulin, Kunitz And Netrin Domain Containing (WFIKKN)1, and WFIKKN2, have been shown to influence skeletal muscle and aging in mice, the relationship of these circulating factors with human phenotypes is less clear. This study aimed to characterize the relationship between plasma GDF8, GDF11, FST, WFIKKN1, and WFIKKN2 concentrations with the decline of grip strength in 534 adults, ≥65 years, who participated in the Baltimore Longitudinal Study of Aging and had grip strength measured over time. Plasma GDF8 and GDF11 mature proteins, GDF8 and GDF11 propeptides, FST (isoform FST315 and cleaved form FST303), WFIKKN1, and WFIKKN2 concentrations were measured using selected reaction monitoring-tandem mass spectrometry at baseline. Grip strength was measured at baseline and at follow-up visits (median follow-up 8.87 years). Mean (standard deviation) grip strength declined in men and women by -0.84 (2.45) and -0.60 (1.32) kg/year, respectively. Plasma GDF8 and GDF11 mature proteins, GDF8 and GDF11 propeptides, FST315, FST303, WFIKKN1, and WFIKKN2 concentrations were not independently predictive of the decline of grip strength in men or women in multivariable linear regression analyses that adjusted for potential confounders. In conclusion, circulating GDF8, GDF11, and their antagonists do not appear to influence the decline of grip strength in older men or women. (© The Author(s) 2023. Published by Oxford University Press on behalf of The Gerontological Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)
Databáze:	MEDLINE
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