Investigating Associations of Omega-3 Fatty Acids, Lung Function Decline, and Airway Obstruction
Authors: Bonnie K Patchen 1, Pallavi Balte 2, Traci M Bartz 3, R Graham Barr 2, Myriam Fornage 4, Mariaelisa Graff 5, David R Jacobs Jr 6, Ravi Kalhan 7, Rozenn N Lemaitre 3, George O'Connor 8, Bruce Psaty 3, Jungkyun Seo 5, Michael Y Tsai 9, Alexis C Wood 10, Hanfei Xu 11, Jingwen Zhang 11, Sina A Gharib 12, Ani Manichaikul 13, Kari North 4, Lyn M Steffen 5, Josée Dupuis 10 14, Elizabeth Oelsner 2, Dana B Hancock 15, Patricia A Cassano 1 16
Inflammation is associated with lung function decline as measured by spirometry and Omega-3 fatty acids have anti-inflammatory effects. Whether higher levels of omega-3 fatty acids are protective of lung function decline was unknown. In this study, Patchen and colleagues examined the association of omega-3 fatty acid levels with FEV1 and FVC decline in the NHLBI pooled cohorts using linear mixed effects models and repeated spirometry measures. They then leveraged publically-available genome-wide association study (GWAS) data to perform a two-sample Mendelian randomization study using genetic variants to predict omega-3 fatty acid levels. Both analyses provide evidence of a protective effect of higher omega-3 fatty acid levels, especially docosahexaenoic acid, on lung function decline.
Rachel S. Kelly, MPH, PhD
Dawn DeMeo
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