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- Title
Prospective Associations of Plasma Growth Differentiation Factor 15 With Physical Performance and Cognitive Functions in Older Adults.
- Authors
He, Lingxiao; Barreto, Philipe de Souto; Sánchez, Juan Luis Sánchez; Rolland, Yves; Guyonnet, Sophie; Parini, Angelo; Lucas, Alexandre; Vellas, Bruno; Group, MAPT/DSA
- Abstract
Background Growth differentiation factor 15 (GDF15) has been associated with several age-related disorders, but its associations with functional abilities in community-dwelling older adults are not well studied. Methods The study was a secondary analysis of 1 096 community-dwelling older adults (aged 69–94 years) recruited from the Multidomain Alzheimer's Preventive Trial. Plasma GDF15 was measured 1 year after participants' enrollment. Annual data of physical performance (grip strength and Short Physical Performance Battery [SPPB]) and global cognitive functions (Mini-Mental State Examination [MMSE] and a composite cognitive score) were measured for 4 years. Adjusted mixed-effects linear models were performed for cross-sectional and longitudinal association analyses. Results A higher GDF15 was cross-sectionally associated with a weaker grip strength (β = −1.1E−03, 95% CI [−2.0E−03, −1.5E−04]), a lower SPPB score (β = −3.1E−04, 95% CI [−5.4E−04, −9.0E−05]), and worse cognitive functions (β = −2.4E−04, 95% CI [−3.3E−04, −1.6E−04] for composite cognitive score; β = −4.0E−04, 95% CI [−6.4E−04, −1.6E−04] for MMSE). Participants with higher GDF15 demonstrated greater longitudinal declines in SPPB (β = −1.0E−04, 95% CI [−1.7E−04, −2.0E−05]) and composite cognitive score (β = −2.0E−05, 95% CI [−4.0E−05, −3.6E−06]). The optimal initial GDF15 cutoff values for identifying participants with minimal clinically significant decline after 1 year were 2 189 pg/mL for SPPB (AUC: 0.580) and 2 330 pg/mL for composite cognitive score (AUC: 0.587). Conclusions Plasma GDF15 is cross-sectionally and longitudinally associated with lower-limb physical performance and global cognitive function in older adults. Circulating GDF15 alone has a limited capacity of discriminating older adults who will develop clinically significant functional declines. Clinical Trial Registration NCT00672685
- Subjects
GROWTH differentiation factors; PHYSICAL mobility; OLDER people; COGNITIVE ability; ALZHEIMER'S disease; PROSPECTIVE memory
- Publication
Journals of Gerontology Series A: Biological Sciences & Medical Sciences, 2022, Vol 77, Issue 12, p2420
- ISSN
1079-5006
- Publication type
Article
- DOI
10.1093/gerona/glac020