The Effect of Spice Consumption on Postprandial Vascular Function
- Conditions
- Cardiovascular Risk Factor
- Interventions
- Other: Spice blend
- Registration Number
- NCT03063320
- Lead Sponsor
- Penn State University
- Brief Summary
A 3-period randomized cross-over, controlled feeding study will be conducted to determine the effect of chronic spice consumption on postprandial vascular function. Participants will consume three test diets containing different amounts of spice. Each treatment period will last for 4 weeks. After each diet period a meal test will be conducted. Participants will consume a meal with a spice content corresponding to the diet period they have just completed. Endothelial function will be measured at 2 and 4 hours after meal consumption. Blood samples will also be taken during the 4 hours after meal consumption for measurement of lipids, immune and inflammatory markers.
- Detailed Description
A 3-period randomized cross-over, controlled feeding study will be conducted to determine the effect of chronic spice consumption on postprandial vascular function, lipid levels, immune and inflammatory markers. Participants will consume three test diets containing different amounts of spice. Each treatment period will last for 4 weeks. At baseline and after each diet period a postprandial test will be conducted. Flow mediated dilation (FMD) will conducted in the fasting state and a catheter will be inserted for blood sampling. Participants will consume a control test meal containing low spice at baseline and after each diet period the test meal will contain a level of spice that corresponds to the amount of spice consumed during the diet period. Blood samples will be taken at 30, 60, 120, 180 and 240 minutes after meal consumption, and FMD will be performed at 120 and 240 minutes.
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 43
Men and postmenopausal women Overweight or obese (25-35kg/m2) Non-smoking Waist circumference >= 94cm for men and >=80cm for women
At least one other of the following:
- LDL- cholesterol >130mg/dL
- CRP >1mg/L
- Triglycerides >=150mg/dL
- HDL <40mg/dL for men or <50mg/dL for women
- Systolic blood pressure >= 130mmHg or diastolic >= 85mmHg
- Fasting glucose >=100mg/dL
- Diabetes (fasting glucose >126mg/dL)
- Hypertension (systolic blood pressure >160mmHg or diastolic blood pressure >100mmHg)
- Prescribed anti-hypertensive or glucose lowering drugs
- Established cardiovascular disease, stroke, diabetes, liver, kidney or autoimmune disease
- Use of cholesterol/lipid lowering medication or supplementation (psyllium, fish oil, soy lecithin, phytoestrogens) and botanicals
- Pregnancy or lactation
- Weight loss of >=10% of body weight within the 6 months prior to enrolling in the study
- Vegetarianism
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- CROSSOVER
- Arm && Interventions
Group Intervention Description Culinary Spice Spice blend The test meal (\~1200kcal and 44g fat) will contain \~7.4g of spice blend Moderate Spice Spice blend The test meal (\~1200kcal and 44g fat) will contain \~3.7g of spice blend Low Spice Spice blend The test meal (\~1200kcal and 44g fat) will contain \~0.6g of spice blend
- Primary Outcome Measures
Name Time Method Change in flow mediated dilation Change from baseline at 2 hours and 4 hours after meal consumption Endothelial function measured by FMD
- Secondary Outcome Measures
Name Time Method Glucose Change from baseline during the 4 hours after meal consumption Plasma glucose
Plasma antioxidants Change from baseline during the 4 hours after meal consumption hydrophilic ORAC, lipophilic ORAC, total ORAC
Insulin Change from baseline during the 4 hours after meal consumption Plasma insulin
Inflammatory cytokines in isolated peripheral blood mononuclear cells Change from baseline during the 4 hours after meal consumption TNF-alpha, IL-6,NF-κB, I-κB, MAP kinase, COX-2, iNOS from stimulated and unstimulated lipopolysaccharides in peripheral blood mononuclear cells. Activation status of macrophages.
Lipid and lipoproteins Change from baseline during the 4 hours after meal consumption Total cholesterol, LDL cholesterol, HDL cholesterol, Triglycerides
Plasma Inflammatory cytokines Change from baseline during the 4 hours after meal consumption Serum: IL-1β, IL-6, IL-10, IL-12p70, interferon-gamma, monocyte chemoattractant protein-1, macrophage inflammatory protein-1alpha, TNF-alpha, vascular endothelial growth factor
Trial Locations
- Locations (1)
Penn State University
🇺🇸University Park, Pennsylvania, United States