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We aimed to investigate the cross-sectional associations of serum fatty acid (FA) and related Δ-desaturase with hypertension among 2,447 community-dwellers aged 35–79 years living in Zhejiang Province, China. Individual FA was determined in serum, Δ 5 -desaturase (D5D) and Δ 6 -desaturase (D6D) activities were indirectly estimated by FA product/precursor ratios. Participants in the highest quartile of D5D component scores (20:4n–6, 20:5n–3, 22:6n–3 and D5D) have significantly lower odds of hypertension compared with individuals in the lowest (multivariate-adjusted odds ratio (OR) = 0.68, 95% CI: 0.46–0.98). When further stratified by gender, high D5D component scores were significantly associated with lower odds of hypertension in women (OR = 0.53, 95% CI: 0.35–0.80), but not in men (OR = 0.78, 95% CI: 0.52-1.18). Multivariate-adjusted prevalent OR for an interquartile increment of individual FA and estimated desaturase was 1.27 (95% CI: 1.08–1.50) for 16:0, 1.15 (95% CI: 1.01–1.30) for 16:1n–7, 0.89 (95% CI: 0.80–0.99) for 22:6n–3, 1.32 (95% CI: 1.01–1.72) for D6D (18:3n–6/18:2n–6), and 0.74 (95% CI: 0.56, 0.98) for D5D (20:4n–6/20:3n–6). Present findings suggested that high serum 22:6n–3 and D5D as well as low 16:0, 16:1n–7 and D6D were associated with a low prevalence of hypertension in this Chinese population.

Association of serum fatty acid and estimated desaturase activity with hypertension in middle-aged and elderly Chinese population