Immune Response Clinical Trial
Official title:
Effect of Daily Consumption of Peanuts on Immune Function and Cardiometabolic Markers and Risk Factors in Free-living Individuals: A Randomized Controlled Trial
The aim of the proposed study is two-fold: to determine whether the intake of peanuts (a) enhances immune function and (b) produces a desirable impact on selected cardiometabolic biomarkers and risk factors.
Status | Not yet recruiting |
Enrollment | 80 |
Est. completion date | December 20, 2024 |
Est. primary completion date | December 20, 2024 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | All |
Age group | 18 Years to 70 Years |
Eligibility | Inclusion Criteria: - adults between the ages of 18-70 years Exclusion Criteria: - known intolerance or allergy to peanuts - bad dentures unable to chew peanuts - regular intake of peanuts and/or other nuts (>3 ounces/week) - use of immune-boosting supplements - exposure to antibiotics and corticoids immediately prior to the study - use of other medications or supplements that can interfere with the immune functions - Individuals that received any vaccination (i.e flu or Covid 19) 6 months prior to the start of the study |
Country | Name | City | State |
---|---|---|---|
United States | Loma Linda University School of Public Health | Loma Linda | California |
Lead Sponsor | Collaborator |
---|---|
Loma Linda University | California Walnut Commission |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Changes in lymphocyte populations | Immunophenotyping will be performed by flow cytometry to measure the number of T helper, T cytotoxic, Naive and memory cells and B cells | baseline to 12 weeks | |
Primary | Changes in Lymphocyte activity | The production of lymphocytes will be measured in the supernatant using enzyme linked immunosorbent assay (ELISA) | baseline to 12 weeks | |
Primary | Changes in cytokine production | The cytokines produced due to lymphocyte activity will be measured in the supernatant using enzyme linked immunosorbent assay (ELISA) | baseline to 12 weeks | |
Primary | Changes in serum inflammatory cytokine concentration | changes in the concentrations of the inflammatory cytokines will be performed on serum using enzyme linked immunoassay (ELISA) will include hs-CRP, interleukin (IL)-1B, IL-6, TNF a, IL-10 and IFN-?, MCP1, Eotaxin, E-selectin, RANTES and Pentraxin-3 | baseline to 12 weeks | |
Primary | Changes in the serum lipid concentration | This is a composite measurement which will measure the changes in the levels of serum low density cholesterol, high density cholesterol, non- high density cholesterol and triglycerides | baseline to 12 weeks | |
Primary | Changes in insulin resistance | Change in insulin resistance will be measured using the Hemostatic Model Assessment calculator version 2 (HOMA2-IR) | baseline to 12 weeks | |
Primary | Changes in Hemoglobin A1c | Change in Hemoglobin A1c will be measured by cation-exchange high-performance liquid chromatography method | baseline to 12 weeks | |
Primary | Changes in body weight | A change in body weight for both the peanut and control group will be measured using an In Body machine at the baseline and end of intervention | baseline to 12 weeks | |
Primary | changes in systolic and diastolic blood pressure | Seated systolic and diastolic blood pressure will be measured at baseline and end of intervention utilizing Omron -Model HEM-7471 C device. Three measurements will be taken after a five-minute rest period, 1 minute apart, and the last two recordings will be averaged for analysis. | baseline to 12 weeks | |
Primary | changes in percentage body fat | A change in the percentage of body fat for both the peanut and control group will be measured using an In Body machine at the baseline and end of intervention | baseline to 12 weeks | |
Secondary | changes in upper respiratory infection questionnaire score | Upper respiratory tract infections will be tracked using the Jackson and Dowling questionnaire. The questionnaire will be completed daily by participants, either manually or electronically , throughout the 12-week study period. The scale for the questionnaire is from 0-42. The higher score means worse outcome. | baseline to 12 weeks |
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