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Serum Nonesterified Fatty Acids and Incident Stroke: The CHS.

TitleSerum Nonesterified Fatty Acids and Incident Stroke: The CHS.
Publication TypeJournal Article
Year of Publication2021
AuthorsHuang, NK, Biggs, ML, Matthan, NR, Djoussé, L, Longstreth, WT, Mukamal, KJ, Siscovick, DS, Lichtenstein, AH
JournalJ Am Heart Assoc
Volume10
Issue22
Paginatione022725
Date Published2021 11 16
ISSN2047-9980
Keywords8,11,14-Eicosatrienoic Acid, Fatty Acids, Nonesterified, Fatty Acids, Omega-3, Hemorrhagic Stroke, Humans, Prospective Studies, Risk Factors, Stroke, Trans Fatty Acids
Abstract<p>Background Significant associations between total nonesterified fatty acid (NEFA) concentrations and incident stroke have been reported in some prospective cohort studies. We evaluated the associations between incident stroke and serum concentrations of nonesterified saturated, monounsaturated, polyunsaturated, and fatty acids. Methods and Results CHS (Cardiovascular Health Study) participants (N=2028) who were free of stroke at baseline (1996-1997) and had an archived fasting serum sample were included in this study. A total of 35 NEFAs were quantified using gas chromatography. Cox proportional hazards regression models were used to evaluate associations of 5 subclasses (nonesterified saturated, monounsaturated, omega (n)-6 polyunsaturated, n-3 polyunsaturated, and fatty acids) of NEFAs and individual NEFAs with incident stroke. Sensitivity analysis was conducted by excluding cases with hemorrhagic stroke (n=45). A total of 338 cases of incident stroke occurred during the median 10.5-year follow-up period. Total n-3 (hazard ratio [HR], 0.77 [95% CI, 0.61-0.97]) and n-6 (HR, 1.32 [95% CI, 1.01-1.73]) subclasses of NEFA were negatively and positively associated with incident stroke, respectively. Among individual NEFAs, dihomo-γ-linolenic acid (20:3n-6) was associated with higher risk (HR, 1.29 [95% CI, 1.02-1.63]), whereas -7-hexadecenoic acid (16:1n-9) and arachidonic acid (20:4n-6) were associated with a lower risk (HR, 0.67 [95% CI, 0.47-0.97]; HR, 0.81 [95% CI. 0.65-1.00], respectively) of incident stroke per standard deviation increment. After the exclusion of cases with hemorrhagic stroke, these associations did not remain significant. Conclusions A total of 2 NEFA subclasses and 3 individual NEFAs were associated with incident stroke. Of these, the NEFA n-3 subclass and dihomo-γ-linolenic acid are diet derived and may be potential biomarkers for total stroke risk.</p>
DOI10.1161/JAHA.121.022725
Alternate JournalJ Am Heart Assoc
PubMed ID34755529
PubMed Central IDPMC8751910
Grant ListU01 HL130114 / HL / NHLBI NIH HHS / United States
75N92021D00006 / HL / NHLBI NIH HHS / United States
N01 HC085086 / HC / NHLBI NIH HHS / United States
N01HC55222 / HL / NHLBI NIH HHS / United States
HHSN268200800007C / HL / NHLBI NIH HHS / United States
HHSN268201800001C / HL / NHLBI NIH HHS / United States
U01 HL080295 / HL / NHLBI NIH HHS / United States
N01 HC085082 / HC / NHLBI NIH HHS / United States
HHSN268201200036C / HL / NHLBI NIH HHS / United States
N01HC85079 / HL / NHLBI NIH HHS / United States
N01HC85083 / HL / NHLBI NIH HHS / United States
N01 HC085080 / HC / NHLBI NIH HHS / United States
N01HC85081 / HL / NHLBI NIH HHS / United States
R01 AG023629 / AG / NIA NIH HHS / United States
ePub date: 
21/11