Johns Hopkins University
This Dietary Intervention is being done to evaluate the feasibility of a food voucher program and dietary counseling to increase consumption of healthy fatty acids (omega-3) in individuals with Chronic Obstructive Pulmonary Disease (COPD).
Chronic Obstructive Pulmonary Disease
voucher for ordering foods (ONLY omega-3 rich foods)
voucher for ordering foods in general (any type of foods)
The goal of this pilot intervention is to evaluate the feasibility of a food voucher program and dietary counseling to increase dietary intake of omega-3 fatty acid in individuals with COPD. This hypothesis is based on a number of recent observations. Studies have investigated the impact of omega-3 fatty acids, especially Eicosapentaenoic acid (EPA), Docosahexaenoic acid (DHA), alfa-linolenic acid (ALA) intake in chronic diseases and show a link with decreased systemic inflammation measured by cytokines including interleukin 1 (IL-1B), interleukin 6 (IL-6), interleukin 10 (IL-10), tumoral necrosis factor alfa (TNF-α) and eicosanoids; and improved outcomes. In a large cross-sectional study of individuals with COPD, a diet rich in the omega-3 ALA was associated with lower serum TNF-α levels while a diet rich in the omega-6's LA and arachidonic acid (AA) had higher systemic inflammatory markers IL-6 and c-reactive protein (CRP). Other recent nutritional epidemiological study showed the association of greater intakes of omega-3 fatty acids with better lung function profile, but also a slower forced expiratory volume at the 1 second (FEV1) decline in the same smoker cohort. Preliminary cross-sectional data (n=59), from the CLEAN Air study, reported that at baseline, a higher omega 3 dietary intake was linked with reduced systemic inflammation (IL-1B) and improved respiratory outcomes (a 28% decrease in the odds of COPD symptoms in moderate-severe COPD and conversely, higher omega-6 levels associated with worse outcomes, including increased dyspnea and lower lung function. These findings support the importance of implementing an intervention program to confirm there is a beneficial association between fatty acid dietary intake and reduced COPD symptoms. To this end, the investigators propose a pilot intervention study in 20 subjects to see if the investigators can increase omega-3 dietary intake over a 4 week period. The investigators will measure self-report dietary intake of omega 3 and 6 fatty acids, as well as measure, fasting plasma fatty acid levels, before and after the intervention.
|Study Type :||Interventional|
|Estimated Enrollment :||20 participants|
|Official Title:||Dietary Intervention Increasing Omega-3 Intake- Feasibility Trial|
|Actual Study Start Date :||January 23, 2019|
|Estimated Primary Completion Date :||February 14, 2020|
|Estimated Study Completion Date :||February 21, 2020|
Active Comparator: Intervention group
The Intervention group will receive a voucher for ordering foods (ONLY omega-3 rich foods) weekly (4 times).
Other: voucher for ordering foods (ONLY omega-3 rich foods)
Sham Comparator: Control group
The Control group will receive a voucher for ordering foods in general (any type of foods) weekly (4 times). Participants will NOT be limited to purchasing foods rich in omega-3.
Other: voucher for ordering foods in general (any type of foods)
|Ages Eligible for Study:||40 Years|
|Sexes Eligible for Study:||All|
|Accepts Healthy Volunteers:||No|
Want to participate in this study, select a site at your convenience, send yourself email to get contact details and prescreening steps.
Not yet recruiting
Johns Hopkins Bayview Campus
Baltimore, Maryland, United States, 21224