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Hemostatic factor levels and cognitive decline in older adults: The Cardiovascular Health Study.

TitleHemostatic factor levels and cognitive decline in older adults: The Cardiovascular Health Study.
Publication TypeJournal Article
Year of Publication2021
AuthorsHarrington, LB, Ehlert, AN, Thacker, EL, Jenny, NS, Lopez, O, Cushman, M, Fitzpatrick, A, Mukamal, KJ, Jensen, MK
JournalJ Thromb Haemost
Date Published2021 Mar 16
ISSN1538-7836
Abstract<p><b>BACKGROUND: </b>Hemostasis is a key factor in cerebrovascular disease, but the association of hemostatic factors with cognitive decline is unclear.</p><p><b>OBJECTIVE: </b>To prospectively evaluate associations of 20 hemostatic factor levels with changes in cognition during ≥8 years of follow-up in the Cardiovascular Health Study (CHS) of older adults.</p><p><b>METHODS: </b>We included participants of an existing CHS cross-sectional substudy (n = 400) with hemostatic factors measured in 1989-1990. Between 1989-1990 and 1998-1999, cognitive function was measured using the Modified Mini-Mental State Examination (3MSE) and Digit Symbol Substitution Tests. Mixed-effects linear regression models estimated change in cognitive function over time, adjusting for sociodemographic and clinical factors and APOE genotype, using Bonferroni adjustment. We also derived principal components to account for the interrelationship among factors.</p><p><b>RESULTS: </b>Of 20 factors evaluated individually, only higher levels of plasmin-α -antiplasmin complex (PAP), tissue factor pathway inhibitor (TFPI), and lower factor X (FXc) levels were associated with faster cognitive decline, estimated by annual change in 3MSE points (1 standard deviation PAP β = -0.65, 95% confidence interval [CI]: -1.08 to -0.21; TFPI β = -0.55, 95% CI: -0.90 to -0.19; FXc β = 0.52, 95% CI: 0.21-0.84). One of four principal components, loading positively on D-dimer, prothrombin fragment 1.2 (F1.2), and PAP was significantly associated with change in 3MSE.</p><p><b>CONCLUSIONS: </b>Levels of PAP, TPFI, and FXc and a combination of factors driven by PAP, D-dimer, and F1.2 were associated with cognitive decline. Whether these findings can be used to improve dementia prevention or prediction requires further study.</p>
DOI10.1111/jth.15300
Alternate JournalJ Thromb Haemost
PubMed ID33725412
Grant ListU01HL080295 / HL / NHLBI NIH HHS / United States
R01NS089638 / NS / NINDS NIH HHS / United States
N01HC85081 / HL / NHLBI NIH HHS / United States
N01HC85083 / HL / NHLBI NIH HHS / United States
K01HL139997 / HL / NHLBI NIH HHS / United States
N01HC85082 / HL / NHLBI NIH HHS / United States
K01 HL139997 / HL / NHLBI NIH HHS / United States
HHSN268201200036C / HL / NHLBI NIH HHS / United States
R01AG15928 / AG / NIA NIH HHS / United States
HHSN268200800007C / HL / NHLBI NIH HHS / United States
R01AG023629 / AG / NIA NIH HHS / United States
R01HL046696 / HL / NHLBI NIH HHS / United States
U01HL130114 / HL / NHLBI NIH HHS / United States
N01HC85080 / HL / NHLBI NIH HHS / United States
T32HL098048 / HL / NHLBI NIH HHS / United States
HHSN268201800001C / HL / NHLBI NIH HHS / United States
R01AG20098 / AG / NIA NIH HHS / United States
N01HC55222 / HL / NHLBI NIH HHS / United States
N01HC85086 / HL / NHLBI NIH HHS / United States
N01HC85079 / HL / NHLBI NIH HHS / United States
ePub date: 
21/03