Dietary Anthocyanins Improve Lipid Metabolism in a Dose - Dependent Manner

Study Overview
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Brief Summary
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In order to study the effect of anthocyanins on the improvement of glucose and lipid metabolism, randomized intervention trials were conducted to compare the effects of anthocyanins on the improvement of glucose and lipid metabolism in different dose groups.To explore the best dose of anthocyanins for the prevention and treatment of anthocyanin metabolic diseases provide an important scientific basis.

Detailed Description
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In order to study the effect of anthocyanins on the improvement of glucose and lipid metabolism, randomized controlled trials were conducted to enrolled 300 patients with dyslipidemia. The subjects were divided into 0 mg / d, 40 mg / d, 80 mg / d, 320 mg/ d five dose groups, intervention for 12 weeks, comparing different doses of anthocyanins on glucose and lipid metabolism.To explore the best dose of anthocyanins for the prevention and treatment of anthocyanin metabolic diseases provide an important scientific basis.

Official Title
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Anthocyanin Supplementation Improves Blood Lipids in a Dose-response Manner in Subjects With Dyslipidemia

Conditions
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Dyslipidemias

Intervention / Treatment
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* Drug: Medox® Anthocyanin capsules


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Dyslipidemia Subjects with dyslipidemia who also have prediabetes The age between 35 and 70 years old Exclusion Criteria: intake of any medicine that affect lipid and glucose metabolism currently or in the preceding 6 months dietary supplementation with phytochemicals including anthocyanins in the preceding 2 months history of acute or chronic infectious disease, autoimmune disease, cancer, traumatic injury, or surgery in the preceding 1 month history of severe chronic disease including AS and CVD, liver or renal dysfunction, and lactation or pregnancy Pregnant woman and Breast Feeding Women

Ages Eligible for Study
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Minimum Age: 35 Years
Maximum Age: 70 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Prevention
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Placebo Comparator: placebo<br>The placebo capsules only contained pullulan and maltodextrin.During the trial period, the participants were instructed to consume 2 Medox® placebo capsules twice daily (30 min after breakfast or supper). | Drug: Medox® Anthocyanin capsules<br>* Subjects were orally administered Medox® capsules daily for 12 weeks.<br>* Other names: Medox® Placebo capsules;|
| Experimental: 40mg/d anthocyanins<br>Medox® Anthocyanin capsules is consisted of 17 different natural purified anthocyanins.from bilberry (Vaccinium myrtillus) and black currant (Ribesnigrum). To achieve the double-blind,every group are instructed to consume the same amount of capsule. During the trial period, the participants will be instructed to consume one Medox® anthocyanin capsules and one Medox® placebo capsules 30 min after breakfast and consume two Medox® placebo capsules 30 min after supper.The anthocyanin capsules (40 mg anthocyanins per capsule) will provid a total daily intake of 40 mg anthocyanins. | Drug: Medox® Anthocyanin capsules<br>* Subjects were orally administered Medox® capsules daily for 12 weeks.<br>* Other names: Medox® Placebo capsules;|
| Experimental: 80mg/d anthocyanins<br>Medox® Anthocyanin capsules is consisted of 17 different natural purified anthocyanins.from bilberry (Vaccinium myrtillus) and black currant (Ribesnigrum).To achieve the double-blind,every group are instructed to consume the same amount of capsule. During the trial period, the participants will be instructed to consume one Medox® anthocyanin capsules and one Medox® placebo capsules 30 min after breakfast and consume two Medox® placebo capsules 30 min after supper.The anthocyanin capsules (80 mg anthocyanins per capsule) will provid a total daily intake of 80 mg anthocyanins. | Drug: Medox® Anthocyanin capsules<br>* Subjects were orally administered Medox® capsules daily for 12 weeks.<br>* Other names: Medox® Placebo capsules;|
| Experimental: 320mg/d anthocyanins<br>Medox® Anthocyanin capsules is consisted of 17 different natural purified anthocyanins.from bilberry (Vaccinium myrtillus) and black currant (Ribesnigrum).To achieve the double-blind,every group are instructed to consume the same amount of capsule. During the trial period, the participants will be instructed to consume two Medox® anthocyanin capsules 30 min after breakfast and after supper.The anthocyanin capsules (80 mg anthocyanins per capsule,4 per day) will provid a total daily intake of 320 mg anthocyanins. | Drug: Medox® Anthocyanin capsules<br>* Subjects were orally administered Medox® capsules daily for 12 weeks.<br>* Other names: Medox® Placebo capsules;|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Anthocyanins dose-dependently improved blood lipids in patients with dyslipidemia. | After 12 weeks intervention of anthocyanins, serum lipid profiles were measured at baseline, at 6 weeks, and at the end of 12 weeks. | 12 weeks | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Anthocyanin supplementation improves cholesterol efflux capacity in a dose-response manner in subjects with dyslipidemia | After 12 weeks intervention of anthocyanins,cholesterol efflux capacity (CEC) were measured at baseline, at 6 weeks, and at the end of 12 weeks. | 12 weeks | 
| Anthocyanins supplementation improve anti-oxidative and anti-inflammation capacity in a dose-response manner in subjects with dyslipidemia. | After 12 weeks intervention of anthocyanins,Urine 8-iso-prostaglandinF2α (8-iso-PGF2α), 8-hydroxy-2'-deoxyguanosine (8-OHdG) and serum malondialdehyde (MDA), superoxide dismutase (SOD), UA (urine acid), interleukin-6 (IL-6), interleukin-10(IL-10), tumor necrosis factor-α (TNF-α) and C-reactive protein (CRP) were measured at baseline, at 6 weeks and at the end of 12 weeks. | 12 weeks | 
| Anthocyanins supplementation attenuate platelet hyperreactivity in a dose-response manner in subjects with dyslipidemia. | After 12 weeks intervention of anthocyanins, platelet aggregation, the expression of P-selectin (CD62p) activated GPⅡbⅢa (PAC-1), platelet reactive oxygen species (ROS) and platelet mitochondrial membrane potential (TMRM) were measured at baseline, at 6 weeks and at the end of 12 weeks. | 12 weeks | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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anthocyanins, dyslipidemias, dose response