Homocysteine, Folic Acid, Cyanocobalamin, and Frailty in Older People: Findings From the "Invece. Ab" Study.
cyanocobalamin
folic acid
frailty
homocysteine
longitudinal study
older people
Journal
Frontiers in physiology
ISSN: 1664-042X
Titre abrégé: Front Physiol
Pays: Switzerland
ID NLM: 101549006
Informations de publication
Date de publication:
2021
2021
Historique:
received:
14
09
2021
accepted:
17
11
2021
entrez:
3
1
2022
pubmed:
4
1
2022
medline:
4
1
2022
Statut:
epublish
Résumé
Frailty is an important age-related syndrome associated with several adverse health outcomes. Its biological basis is undefined. Raised plasma homocysteine (HOcy) is an established risk factor for cardiovascular disease, dementia, cognitive impairment, and mortality, but little is known about the possible role of plasma HOcy, cyanocobalamin (B12), and folate (FO levels in the development of frailty. Our first aim was to explore the possible association between frailty and plasma concentrations of HOcy, FO, and B12 in a cohort of community-dwelling older people. The second was to assess the influence of these metabolic factors on six-year incidence of frailty in the 875 individuals eligible for inclusion in this study (those with a full follow-up dataset). This research is based on data from three waves - 2012 (herein taken as baseline), 2014, and 2018 - of a longitudinal study (InveCe.Ab) in which non-frail men and women born between 1935 and 1939 underwent multidimensional assessments. Frailty was estimated using a deficit accumulation-based frailty index (FI). HOcy concentration was significantly positively correlated with FI at all timepoints, while B12 and FO levels were not. Plasma concentration of HOcy emerged as a predictor of six-year cumulative incidence of frailty, independent of age, sex, and education, while B12 and FO levels showed no relationship with frailty incidence. Individuals with plasma HOcy in the top quintile showed five months less frailty-free survival (HR 1.487; 95% CI: 1.063-2.078), regardless of age, sex, and education. These results demonstrate that higher HOcy is a risk factor for frailty onset in older adults.
Identifiants
pubmed: 34975530
doi: 10.3389/fphys.2021.775803
pmc: PMC8717775
doi:
Types de publication
Journal Article
Langues
eng
Pagination
775803Informations de copyright
Copyright © 2021 Guaita, Brunelli, Davin, Poloni, Vaccaro, Gagliardi, Pansarasa and Cereda.
Déclaration de conflit d'intérêts
The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
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