Study of Chokeberry to Reduce Cardiovascular Disease Risk in Former Smokers

Sponsor
University of Connecticut (Other)
Overall Status
Completed
CT.gov ID
NCT01541826
Collaborator
(none)
62
1
3
58
1.1

Study Details

Study Description

Brief Summary

The purpose of this project is to determine whether chokeberry polyphenols mitigate cardiovascular disease risk in former smokers.

Condition or Disease Intervention/Treatment Phase
  • Dietary Supplement: Chokeberry Extract
  • Dietary Supplement: Placebo capsule
  • Dietary Supplement: Chokeberry extract capsule, acute
N/A

Detailed Description

More than 31% of Connecticut adults are former smokers, which may contribute to the high cardiovascular disease (CVD) risk in this state. Atherosclerosis, a hallmark of CVD, is a progressive life-long process. Chronic cigarette smoking increases atherosclerosis and CVD risk. While smoking cessation may lower CVD risk, former smokers still are at high CVD risk. The mechanisms by which smoking accelerates atherosclerosis formation are not fully understood. This knowledge gap prevents development of informed interventions to reduce CVD risk in former smokers.

Previous work suggests smoking increases oxidative stress and leads to elevated CVD risk. Former smokers also have decreased antioxidants and markers of vascular function in the circulation, suggesting that despite cessation, smoking has a lingering adverse effect on CVD protective mechanisms. Chokeberry (Aronia melanocarpa) is a native Connecticut plant rich in polyphenol antioxidants and is a promising intervention for reducing CVD risk in former smokers. Chokeberries have diverse polyphenols such as anthocyanins, proanthocyanidins, resveratrol, quercetin, and chlorogenic acid. Chokeberry consumption improves dyslipidemia, inhibits inflammation, and reduces oxidative stress in humans and animals, all of which could contribute to the prevention of CVD in former smokers. Therefore, our central hypothesis is that dietary chokeberry polyphenols reduce CVD risk in former smokers by improving lipid profiles and inhibiting inflammation and oxidative stress. Our long-term goal is to define the mechanisms by which polyphenol antioxidants mitigate CVD risk. The overall goal of this project is to conduct a randomized placebo-controlled clinical trial to evaluate the cardio-protective effects of dietary chokeberry polyphenols in former smokers.

Our objectives are to determine 1) the effect of chokeberry polyphenols on plasma cholesterol and triglyceride levels and on gene expression involved in cholesterol metabolism; 2) the extent to which chokeberry improves antioxidant and vascular function in former smokers; and 3) the association of bioavailability of chokeberry polyphenols to changes in biomarkers of CVD risk.

Successful completion of this work will result in improved understanding of the role of dietary berry polyphenols to regulate lipid metabolism, inflammation and oxidative stress. Thus, this study will be an important step to developing dietary recommendations for individuals predisposed to CVD risk, particularly former smokers.

Study Design

Study Type:
Interventional
Actual Enrollment :
62 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
Single (Participant)
Primary Purpose:
Basic Science
Official Title:
The Effect of Chokeberry Polyphenols on Biomarkers of Cardiovascular Disease and Antioxidant Defenses in Former Smokers
Study Start Date :
Feb 1, 2012
Actual Primary Completion Date :
Aug 1, 2015
Actual Study Completion Date :
Dec 1, 2016

Arms and Interventions

Arm Intervention/Treatment
Placebo Comparator: Color-matched rice powder pill

Color-matched rice powder pill

Dietary Supplement: Placebo capsule
Color-matched rice powder pill, 2 x 250 mg/day for 12 weeks

Active Comparator: Chokeberry extract capsule

Chokeberry extract capsule

Dietary Supplement: Chokeberry Extract
Consumption of 2 x 250 mg chokeberry extract capsules daily for 12 weeks.

Experimental: Chokeberry extract capsule (acute)

Chokeberry extract capsule pharmacokinetics

Dietary Supplement: Chokeberry extract capsule, acute
Chokeberry extract capsule, 2 x 250 mg, one-time dose.

Outcome Measures

Primary Outcome Measures

  1. LDL Cholesterol [Baseline, 6 weeks, 12 weeks of intervention]

    Change in LDL cholesterol from baseline after chronic supplementation. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.

Secondary Outcome Measures

  1. Total Cholesterol [6 and 12 weeks after supplementation]

    Change in fasting total cholesterol from baseline after chronic supplementation. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.

  2. HDL-cholesterol [6 and 12 weeks after supplementation]

    Change in fasting plasma cholesterol from baseline after chronic supplemenation. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.

  3. Triglycerides [6 and 12 weeks after supplementation]

    Change in fasting plasma triglycerides from baseline after chronic supplementation. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.

  4. Resting Systolic Blood Pressure [Baseline, 6 weeks, and 12 weeks following intervention]

    Change in resting systolic blood pressure after chronic supplementation. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.

  5. Resting Diastolic Blood Pressure [Baseline, 6 weeks, and 12 weeks following intervention]

    Change in resting diastolic blood pressure after chronic supplementation. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.

  6. Urinary F2-isoprostanes [Baseline and 12 weeks following intervention]

    Change in resting urinary F2-isoprostanes after chronic supplementation. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.

  7. 3-hydroxy-3-methyl-glutaryl Coenzyme A Reductase (HMGR) [Baseline, 12 wk]

    Monocyte messenger ribonucleic acid (mRNA) expression normalized to glyceraldehyde-3-phosphate dehydrogenase (GAPDH) after chronic supplementation. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.

  8. LDL Receptor (LDLR) [Change from baseline at 12 weeks]

    Monocyte LDL receptor mRNA normalized to glyceraldehyde-3-phosphate dehydrogenase after chronic supplementation. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.

  9. LDL Receptor (LDLR) Protein [Baseline, 12 weeks]

    Monocyte LDL receptor protein by Western blot, normalized to β-actin after chronic supplementation. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.

  10. Plasma Area Under the Curve of Chokeberry Polyphenols and Their Metabolites. [0, 0.5, 1, 2, 4, 6, 9, 12, and 24 hours following dose]

    Plasma area under the curve of chokeberry polyphenols and their metabolites. Measurement (time 0) began at study baseline. Not determined in chronic arms (Color-matched Rice Powder Pill or Chokeberry Extract Capsule).

  11. Urinary Excretion of Polyphenols [0 to 24 h after consumption of extract]

    Urinary excretion of polyphenols, from 0 to 24 h after consumption of extract, area under the curve (AUC) in Chokeberry Extract Capsule (acute) arm only.

  12. Adiponectin [Baseline, 6 weeks, 12 weeks]

    Fasting plasma adiponectin after chronic consumption. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.

  13. Interleukin-1 Beta [Baseline, 6 weeks, 12 weeks]

    Fasting plasma interleukin-1 beta after chronic consumption. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.

  14. Interleukin-6 [Baseline, 6 weeks, 12 weeks]

    Fasting plasma interleukin-6 after chronic supplementation. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.

  15. Monocyte Chemoattractant Protein-1 [Baseline, 6 weeks, 12 weeks]

    Fasting plasma monocyte chemoattractant protein-1 after chronic supplementation. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.

  16. Tumor Necrosis Factor-alpha [Baseline, 6 weeks, 12 weeks]

    Fasting plasma Tumor necrosis factor-alpha after chronic supplementation. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.

  17. C-reactive Protein [Baseline, 6 weeks, 12 weeks]

    Fasting plasma C-reactive protein after chronic supplementation. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.

  18. Intercellular Adhesion Molecule 1 [Baseline, 6 weeks, 12 weeks]

    Fasting plasma intercellular adhesion molecule 1 after chronic supplementation. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.

  19. Soluble Vascular Cell Adhesion Molecule 1 [Baseline, 6 weeks, 12 weeks]

    Fasting plasma soluble vascular cell adhesion molecule 1 after chronic consumption. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.

  20. P-selectin [Baseline, 6 weeks, 12 weeks]

    Fasting plasma P-selectin after chronic supplementation. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.

  21. Total Antioxidant Capacity [Baseline, 6 weeks, 12 weeks]

    Fasting plasma total antioxidant capacity after chronic supplementation. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.

  22. Catalase Activity [Baseline, 6 weeks, 12 weeks]

    Catalase activity after chronic supplementation. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.

  23. Glutathione Peroxidase Activity [Baseline, 6 weeks, 12 weeks]

    Fasting plasma glutathione peroxidase activity after chronic supplementation. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.

  24. Superoxide Dismutase Activity [Baseline, 6 weeks, 12 weeks]

    Fasting plasma superoxide dismutase after chronic supplementation. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.

  25. Urinary Polyphenol Excretion [12 weeks]

    Overnight urinary polyphenol excretion after chronic supplementation. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.

  26. Energy-adjusted Nutrient Intake: Carbohydrate, Protein, Fat, Fiber [Baseline, 12 weeks]

    Energy-adjusted intake based on 3-day dietary recalls, determined by the average of baseline and 12 weeks. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.

  27. Energy Intake [Baseline, 12 weeks]

    Energy intake reported from 3-day dietary recalls at baseline and 12 weeks, determined by the average of baseline and 12 weeks. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.

  28. Energy-adjusted Micronutrient Intake [Baseline, 12 weeks]

    Energy-adjusted micronutrient intake from 3-day dietary recalls at baseline and 12 weeks. Values reported as the average of baseline and 12 weeks. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.

  29. Polyphenol Intake [Baseline, 12 weeks]

    Energy-adjusted polyphenol intake assessed by 3-day dietary recalls at baseline and 12 weeks, values determined by average of baseline and 12 weeks. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.

  30. Intake of Dietary Antioxidant Capacity [Baseline, 12 weeks]

    Energy-adjusted intake of dietary antioxidant capacity determined by 3-day dietary recalls at baseline and 12 weeks. Values reported as average of baseline and 12 weeks. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.

  31. Energy-adjusted Vitamin A Intake [Baseline, 12 weeks]

    Energy-adjusted vitamin A intake from 3-day dietary recalls at baseline and 12 weeks. Values reported as the average of baseline and 12 weeks. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.

Eligibility Criteria

Criteria

Ages Eligible for Study:
18 Years to 65 Years
Sexes Eligible for Study:
All
Accepts Healthy Volunteers:
Yes
Inclusion Criteria:
  • Former smoker (previously smoked ≥3 cigarettes/day for at least 1 year, cessation for at least 6 months

  • Healthy male or female between 18-65 y

  • Serum clinical ranges no more than mildly elevated (serum cholesterol <240 mg/dL) and serum triglyceride (<150 mg/dL)

  • Resting blood pressure <140/90 mm Hg

  • Stable body weight (±5 lb) for last 2 months

  • BMI ranges within normal and overweight (18.5-39 kg/m2)

  • Willing to maintain normal exercise level (<7 h/wk)

  • Willing to avoid exercise 24 h prior to blood sampling

  • Willing to ingest a dietary chokeberry supplement or placebo (500 mg/d) daily for 12 wks.

Exclusion Criteria:
  • Previous diagnoses of CVD, diabetes, or arthritis (except for osteo-arthritis)

  • Currently being treated for cancer (i.e., chemotherapy, radiation therapy)

  • Women with prescribed estrogen replacement therapy

  • Practicing slimming diet

  • Practicing vegetarian diet

  • Currently taking vitamin or mineral supplements or plant pills

  • Alcohol consumption exceeding the definition of moderate drinking (2 drinks/day or a total of 12/week for men or 1 drink/day or a total of 7/week for women)

Contacts and Locations

Locations

Site City State Country Postal Code
1 Roy E. Jones Building Storrs Connecticut United States 06269

Sponsors and Collaborators

  • University of Connecticut

Investigators

  • Principal Investigator: Bradley W Bolling, PhD, University of Connecticut, University of Wisconsin-Madison

Study Documents (Full-Text)

None provided.

More Information

Publications

None provided.
Responsible Party:
Bradley Bolling, Assistant Professor, University of Connecticut
ClinicalTrials.gov Identifier:
NCT01541826
Other Study ID Numbers:
  • H11-311
  • 120068
First Posted:
Mar 1, 2012
Last Update Posted:
Jul 11, 2017
Last Verified:
Apr 1, 2017
Keywords provided by Bradley Bolling, Assistant Professor, University of Connecticut
Additional relevant MeSH terms:

Study Results

Participant Flow

Recruitment Details
Pre-assignment Detail
Arm/Group Title Color-matched Rice Powder Pill Chokeberry Extract Capsule Chaokeberry Extract Capsule (Acute)
Arm/Group Description Color-matched rice powder pill Placebo capsule: Color-matched rice powder pill, 2 x 250 mg/day for 12 weeks Chokeberry extract capsule Chokeberry Extract: Consumption of 2 x 250 mg chokeberry extract capsules daily for 12 weeks. Chokeberry extract capsule, acute: Chokeberry extract capsule, 2 x 250 mg, one-time dose. Chokeberry extract capsule, acute: Chokeberry extract capsule, 2 x 250 mg, one-time dose.
Period Title: Overall Study
STARTED 28 28 6
COMPLETED 24 25 6
NOT COMPLETED 4 3 0

Baseline Characteristics

Arm/Group Title Color-matched Rice Powder Pill Chokeberry Extract Capsule Chokeberry Extract Capsule (Acute) Total
Arm/Group Description Color-matched rice powder pill Placebo capsule: Color-matched rice powder pill, 2 x 250 mg/day for 12 weeks Chokeberry extract capsule Chokeberry Extract: Consumption of 2 x 250 mg chokeberry extract capsules daily for 12 weeks. Chokeberry extract capsule, acute: Chokeberry extract capsule, 2 x 250 mg, one-time dose. Total of all reporting groups
Overall Participants 24 25 6 55
Age (years) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [years]
37.4
(14.8)
32.6
(12.7)
31.3
(12.8)
34.9
(13.9)
Sex: Female, Male (Count of Participants)
Female
13
54.2%
12
48%
3
50%
28
50.9%
Male
11
45.8%
13
52%
3
50%
27
49.1%
Height (m) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [m]
1.73
(0.92)
1.71
(0.83)
1.74
(0.97)
1.72
(0.87)
Average years of smoking (years) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [years]
14.9
(11.9)
8.96
(6.68)
4.8
(3.0)
11.9
(10.0)
Degree of past smoking (Count of Participants)
3-5 cigarettes/day
2
8.3%
4
16%
1
16.7%
7
12.7%
6-10 cigarettes/day
4
16.7%
7
28%
1
16.7%
12
21.8%
11-15 cigarettes/day
4
16.7%
4
16%
2
33.3%
10
18.2%
16-20 cigarettes/day
11
45.8%
6
24%
0
0%
17
30.9%
>20 cigarettes/day
3
12.5%
4
16%
1
16.7%
8
14.5%
Weight (kg) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [kg]
81.5
(17.2)
77.2
(21.1)
72.8
(9.5)
79.3
(19.2)
BMI (kg/m^2) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [kg/m^2]
27.2
(4.7)
25.7
(5.0)
24.1
(2.3)
26.5
(4.9)
Waist circumference (cm) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [cm]
86.0
(17.1)
90.9
(35.1)
79.4
(8.4)
88.5
(27.6)
Systolic blood pressure (mmHg) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [mmHg]
121
(14)
117
(16)
111.3
(7.7)
119
(15)
Diastolic blood pressure (mmHg) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [mmHg]
76.0
(10.4)
75.3
(12.0)
73.3
(4.7)
75.6
(11.0)
Total cholesterol (mg/dL) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [mg/dL]
203
(36)
220
(63)
160
(30)
213
(51)
HDL-cholesterol (mg/dL) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [mg/dL]
28.7
(6.1)
26.8
(7.6)
54.8
(15.7)
27.6
(6.9)
LDL-cholesterol (mg/dL) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [mg/dL]
158
(30)
175
(54)
99.2
(19.2)
168
(44)
Triglycerides (mg/dL) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [mg/dL]
82.1
(37.3)
89.6
(45.4)
69.2
(27.1)
86.3
(41.0)
Total cholesterol/HDL cholesterol (dimensionless ratio) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [dimensionless ratio]
7.3
(1.5)
8.5
(2.7)
3.2
(0.7)
8.0
(2.3)

Outcome Measures

1. Primary Outcome
Title LDL Cholesterol
Description Change in LDL cholesterol from baseline after chronic supplementation. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Time Frame Baseline, 6 weeks, 12 weeks of intervention

Outcome Measure Data

Analysis Population Description
Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Arm/Group Title Color-matched Rice Powder Pill Chokeberry Extract Capsule
Arm/Group Description Color-matched rice powder pill Placebo capsule: Color-matched rice powder pill, 2 x 250 mg/day for 12 weeks Chokeberry Extract: Consumption of 2 x 250 mg chokeberry extract capsules daily for 12 weeks.
Measure Participants 24 25
6 weeks
0.9
(4.2)
-12.6
(5.3)
12 weeks
-0.4
(5.9)
-18.5
(7.8)
2. Secondary Outcome
Title Total Cholesterol
Description Change in fasting total cholesterol from baseline after chronic supplementation. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Time Frame 6 and 12 weeks after supplementation

Outcome Measure Data

Analysis Population Description
Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Arm/Group Title Color-matched Rice Powder Pill Chokeberry Extract Capsule
Arm/Group Description Color-matched rice powder pill Placebo capsule: Color-matched rice powder pill, 2 x 250 mg/day for 12 weeks Chokeberry Extract: Consumption of 2 x 250 mg chokeberry extract capsules daily for 12 weeks.
Measure Participants 24 25
Baseline
203
(7)
220
(13)
6 weeks (change from baseline)
-0.1
(4.6)
1.4
(2.5)
12 weeks (change from baseline)
-1.3
(6.4)
-17.9
(7.6)
3. Secondary Outcome
Title HDL-cholesterol
Description Change in fasting plasma cholesterol from baseline after chronic supplemenation. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Time Frame 6 and 12 weeks after supplementation

Outcome Measure Data

Analysis Population Description
Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Arm/Group Title Color-matched Rice Powder Pill Chokeberry Extract Capsule
Arm/Group Description Color-matched rice powder pill Placebo capsule: Color-matched rice powder pill, 2 x 250 mg/day for 12 weeks Chokeberry Extract: Consumption of 2 x 250 mg chokeberry extract capsules daily for 12 weeks.
Measure Participants 24 25
Baseline
28.8
(1.3)
26.8
(1.5)
6 weeks (change from baseline)
-0.9
(1.0)
0.2
(0.8)
12 weeks (change from baseline)
-0.7
(1.4)
0.2
(0.8)
4. Secondary Outcome
Title Triglycerides
Description Change in fasting plasma triglycerides from baseline after chronic supplementation. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Time Frame 6 and 12 weeks after supplementation

Outcome Measure Data

Analysis Population Description
Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Arm/Group Title Color-matched Rice Powder Pill Chokeberry Extract Capsule
Arm/Group Description Color-matched rice powder pill Placebo capsule: Color-matched rice powder pill, 2 x 250 mg/day for 12 weeks Chokeberry Extract: Consumption of 2 x 250 mg chokeberry extract capsules daily for 12 weeks.
Measure Participants 24 25
Baseline
82.1
(7.6)
89.6
(9.0)
6 weeks (change from baseline)
-0.6
(2.7)
1.0
(5.9)
12 weeks (change from baseline)
-1.0
(5.9)
2.0
(8.5)
5. Secondary Outcome
Title Resting Systolic Blood Pressure
Description Change in resting systolic blood pressure after chronic supplementation. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Time Frame Baseline, 6 weeks, and 12 weeks following intervention

Outcome Measure Data

Analysis Population Description
Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Arm/Group Title Color-matched Rice Powder Pill Chokeberry Extract Capsule
Arm/Group Description Color-matched rice powder pill Placebo capsule: Color-matched rice powder pill, 2 x 250 mg/day for 12 weeks Chokeberry Extract: Consumption of 2 x 250 mg chokeberry extract capsules daily for 12 weeks.
Measure Participants 24 25
Baseline
121
(3)
117
(3)
6 weeks (change from baseline)
-0.8
(1.5)
2.8
(1.7)
12 weeks (change from baseline)
0.2
(2.9)
1.2
(2.4)
6. Secondary Outcome
Title Resting Diastolic Blood Pressure
Description Change in resting diastolic blood pressure after chronic supplementation. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Time Frame Baseline, 6 weeks, and 12 weeks following intervention

Outcome Measure Data

Analysis Population Description
Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Arm/Group Title Color-matched Rice Powder Pill Chokeberry Extract Capsule
Arm/Group Description Color-matched rice powder pill Placebo capsule: Color-matched rice powder pill, 2 x 250 mg/day for 12 weeks Chokeberry Extract: Consumption of 2 x 250 mg chokeberry extract capsules daily for 12 weeks.
Measure Participants 24 25
Baseline
76.0
(2.1)
75.3
(2.4)
6 weeks (change from baseline)
-1.2
(2.4)
5.0
(1.3)
12 weeks (change from baseline)
-1.1
(1.7)
2.0
(1.5)
7. Secondary Outcome
Title Urinary F2-isoprostanes
Description Change in resting urinary F2-isoprostanes after chronic supplementation. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Time Frame Baseline and 12 weeks following intervention

Outcome Measure Data

Analysis Population Description
Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Arm/Group Title Color-matched Rice Powder Pill Chokeberry Extract Capsule
Arm/Group Description Color-matched rice powder pill Placebo capsule: Color-matched rice powder pill, 2 x 250 mg/day for 12 weeks Chokeberry Extract: Consumption of 2 x 250 mg chokeberry extract capsules daily for 12 weeks.
Measure Participants 24 25
Baseline
71.0
(8.1)
58.6
(7.0)
12 weeks
81.6
(7.8)
68.4
(9.0)
8. Secondary Outcome
Title 3-hydroxy-3-methyl-glutaryl Coenzyme A Reductase (HMGR)
Description Monocyte messenger ribonucleic acid (mRNA) expression normalized to glyceraldehyde-3-phosphate dehydrogenase (GAPDH) after chronic supplementation. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Time Frame Baseline, 12 wk

Outcome Measure Data

Analysis Population Description
Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Arm/Group Title Color-matched Rice Powder Pill Chokeberry Extract Capsule
Arm/Group Description Color-matched rice powder pill Placebo capsule: Color-matched rice powder pill, 2 x 250 mg/day for 12 weeks Chokeberry Extract: Consumption of 2 x 250 mg chokeberry extract capsules daily for 12 weeks.
Measure Participants 24 25
Baseline
0.90
(0.06)
0.91
(0.06)
12 weeks
1.16
(0.28)
0.79
(0.12)
9. Secondary Outcome
Title LDL Receptor (LDLR)
Description Monocyte LDL receptor mRNA normalized to glyceraldehyde-3-phosphate dehydrogenase after chronic supplementation. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Time Frame Change from baseline at 12 weeks

Outcome Measure Data

Analysis Population Description
Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Arm/Group Title Color-matched Rice Powder Pill Chokeberry Extract Capsule
Arm/Group Description Color-matched rice powder pill Placebo capsule: Color-matched rice powder pill, 2 x 250 mg/day for 12 weeks Chokeberry Extract: Consumption of 2 x 250 mg chokeberry extract capsules daily for 12 weeks.
Measure Participants 24 25
Baseline
0.90
(0.07)
0.84
(0.07)
12 weeks
0.93
(0.22)
0.88
(0.26)
10. Secondary Outcome
Title LDL Receptor (LDLR) Protein
Description Monocyte LDL receptor protein by Western blot, normalized to β-actin after chronic supplementation. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Time Frame Baseline, 12 weeks

Outcome Measure Data

Analysis Population Description
Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Arm/Group Title Color-matched Rice Powder Pill Chokeberry Extract Capsule
Arm/Group Description Color-matched rice powder pill Placebo capsule: Color-matched rice powder pill, 2 x 250 mg/day for 12 weeks Chokeberry Extract: Consumption of 2 x 250 mg chokeberry extract capsules daily for 12 weeks.
Measure Participants 24 25
Baseline
1.71
(0.33)
1.45
(0.06)
12 weeks
2.47
(0.80)
1.45
(0.64)
11. Secondary Outcome
Title Plasma Area Under the Curve of Chokeberry Polyphenols and Their Metabolites.
Description Plasma area under the curve of chokeberry polyphenols and their metabolites. Measurement (time 0) began at study baseline. Not determined in chronic arms (Color-matched Rice Powder Pill or Chokeberry Extract Capsule).
Time Frame 0, 0.5, 1, 2, 4, 6, 9, 12, and 24 hours following dose

Outcome Measure Data

Analysis Population Description
Not determined in chronic arms (Color-matched Rice Powder Pill or Chokeberry Extract Capsule) as this analysis required additional collection time-points that were not utilized in the other arms.
Arm/Group Title Chokeberry Extract Capsule (Acute)
Arm/Group Description Chokeberry extract capsule, acute: Chokeberry extract capsule, 2 x 250 mg, one-time dose.
Measure Participants 6
Protocatechuic acid
0.054
(0.013)
Hippuric acid
22.350
(4.441)
3-(4-Hydroxyphenyl)propionic acid
2.725
(2.391)
Cyanidin-3-O-glucoside
0.462
(0.170)
Peonidin-3-O-galactoside
0.627
(0.198)
12. Secondary Outcome
Title Urinary Excretion of Polyphenols
Description Urinary excretion of polyphenols, from 0 to 24 h after consumption of extract, area under the curve (AUC) in Chokeberry Extract Capsule (acute) arm only.
Time Frame 0 to 24 h after consumption of extract

Outcome Measure Data

Analysis Population Description
Not determined in chronic arms (Color-matched Rice Powder Pill or Chokeberry Extract Capsule) as this analysis required additional collection time-points that were not utilized in the other arms.
Arm/Group Title Chokeberry Extract Capsule (Acute)
Arm/Group Description Chokeberry extract capsule, acute: Chokeberry extract capsule, 2 x 250 mg, one-time dose.
Measure Participants 6
Protocatechuic acid
3.682
(0.587)
3,4-dihyrdoxyphenylacetic acid
11.426
(0.881)
Hippuric acid
2429.852
(360.197)
3-(4-hydroxyphenyl)propionic acid
2.299
(0.715)
Cyanidin-3-O-galactoside
0.016
(0.005)
Cyanidin-3-O-glucoside
0.118
(0.070)
Cyanidin-3-O-arabinoside
0.088
(0.031)
Peonidin-3-O-galactoside
0.053
(0.012)
13. Secondary Outcome
Title Adiponectin
Description Fasting plasma adiponectin after chronic consumption. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Time Frame Baseline, 6 weeks, 12 weeks

Outcome Measure Data

Analysis Population Description
Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Arm/Group Title Color-matched Rice Powder Pill Chokeberry Extract Capsule
Arm/Group Description Color-matched rice powder pill Placebo capsule: Color-matched rice powder pill, 2 x 250 mg/day for 12 weeks Chokeberry Extract: Consumption of 2 x 250 mg chokeberry extract capsules daily for 12 weeks.
Measure Participants 24 25
Baseline
13.2
(1.9)
12.8
(1.5)
6 weeks
14.2
(2.0)
13.8
(1.7)
12 weeks
12.5
(1.6)
13.2
(1.5)
14. Secondary Outcome
Title Interleukin-1 Beta
Description Fasting plasma interleukin-1 beta after chronic consumption. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Time Frame Baseline, 6 weeks, 12 weeks

Outcome Measure Data

Analysis Population Description
Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Arm/Group Title Color-matched Rice Powder Pill Chokeberry Extract Capsule
Arm/Group Description Color-matched rice powder pill Placebo capsule: Color-matched rice powder pill, 2 x 250 mg/day for 12 weeks Chokeberry Extract: Consumption of 2 x 250 mg chokeberry extract capsules daily for 12 weeks.
Measure Participants 24 25
Baseline
9.3
(2.4)
16.2
(8.6)
6 weeks
9.5
(2.7)
17.0
(9.7)
12 weeks
10.1
(3.0)
14.7
(7.4)
15. Secondary Outcome
Title Interleukin-6
Description Fasting plasma interleukin-6 after chronic supplementation. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Time Frame Baseline, 6 weeks, 12 weeks

Outcome Measure Data

Analysis Population Description
Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Arm/Group Title Color-matched Rice Powder Pill Chokeberry Extract Capsule
Arm/Group Description Color-matched rice powder pill Placebo capsule: Color-matched rice powder pill, 2 x 250 mg/day for 12 weeks Chokeberry Extract: Consumption of 2 x 250 mg chokeberry extract capsules daily for 12 weeks.
Measure Participants 24 25
Baseline
1.94
(0.34)
4.68
(1.34)
6 weeks
1.87
(0.38)
5.16
(1.54)
12 weeks
1.76
(0.29)
5.34
(1.52)
16. Secondary Outcome
Title Monocyte Chemoattractant Protein-1
Description Fasting plasma monocyte chemoattractant protein-1 after chronic supplementation. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Time Frame Baseline, 6 weeks, 12 weeks

Outcome Measure Data

Analysis Population Description
Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Arm/Group Title Color-matched Rice Powder Pill Chokeberry Extract Capsule
Arm/Group Description Color-matched rice powder pill Placebo capsule: Color-matched rice powder pill, 2 x 250 mg/day for 12 weeks Chokeberry Extract: Consumption of 2 x 250 mg chokeberry extract capsules daily for 12 weeks.
Measure Participants 24 25
Baseline
97
(6)
133
(31)
6 weeks
96
(5)
167
(43)
12 weeks
91
(5)
141
(27)
17. Secondary Outcome
Title Tumor Necrosis Factor-alpha
Description Fasting plasma Tumor necrosis factor-alpha after chronic supplementation. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Time Frame Baseline, 6 weeks, 12 weeks

Outcome Measure Data

Analysis Population Description
Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Arm/Group Title Color-matched Rice Powder Pill Chokeberry Extract Capsule
Arm/Group Description Color-matched rice powder pill Placebo capsule: Color-matched rice powder pill, 2 x 250 mg/day for 12 weeks Chokeberry Extract: Consumption of 2 x 250 mg chokeberry extract capsules daily for 12 weeks.
Measure Participants 24 25
Baseline
4.36
(1.83)
5.90
(1.63)
6 weeks
4.70
(1.89)
6.44
(1.83)
12 weeks
4.86
(1.85)
6.10
(1.72)
18. Secondary Outcome
Title C-reactive Protein
Description Fasting plasma C-reactive protein after chronic supplementation. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Time Frame Baseline, 6 weeks, 12 weeks

Outcome Measure Data

Analysis Population Description
Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Arm/Group Title Color-matched Rice Powder Pill Chokeberry Extract Capsule
Arm/Group Description Color-matched rice powder pill Placebo capsule: Color-matched rice powder pill, 2 x 250 mg/day for 12 weeks Chokeberry Extract: Consumption of 2 x 250 mg chokeberry extract capsules daily for 12 weeks.
Measure Participants 24 25
Baseline
2.54
(0.60)
2.01
(0.34)
6 weeks
2.18
(0.42)
2.32
(0.39)
12 weeks
2.24
(0.38)
2.29
(0.49)
19. Secondary Outcome
Title Intercellular Adhesion Molecule 1
Description Fasting plasma intercellular adhesion molecule 1 after chronic supplementation. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Time Frame Baseline, 6 weeks, 12 weeks

Outcome Measure Data

Analysis Population Description
Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Arm/Group Title Color-matched Rice Powder Pill Chokeberry Extract Capsule
Arm/Group Description Color-matched rice powder pill Placebo capsule: Color-matched rice powder pill, 2 x 250 mg/day for 12 weeks Chokeberry Extract: Consumption of 2 x 250 mg chokeberry extract capsules daily for 12 weeks.
Measure Participants 24 25
Baseline
97.1
(7.2)
96.6
(5.4)
6 weeks
97.6
(7.2)
99.4
(5.7)
12 weeks
100
(8)
97.5
(5.8)
20. Secondary Outcome
Title Soluble Vascular Cell Adhesion Molecule 1
Description Fasting plasma soluble vascular cell adhesion molecule 1 after chronic consumption. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Time Frame Baseline, 6 weeks, 12 weeks

Outcome Measure Data

Analysis Population Description
Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Arm/Group Title Color-matched Rice Powder Pill Chokeberry Extract Capsule
Arm/Group Description Color-matched rice powder pill Placebo capsule: Color-matched rice powder pill, 2 x 250 mg/day for 12 weeks Chokeberry Extract: Consumption of 2 x 250 mg chokeberry extract capsules daily for 12 weeks.
Measure Participants 24 25
Baseline
585
(23)
601
(31)
6 weeks
604
(23)
622
(31)
12 weeks
604
(26)
599
(27)
21. Secondary Outcome
Title P-selectin
Description Fasting plasma P-selectin after chronic supplementation. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Time Frame Baseline, 6 weeks, 12 weeks

Outcome Measure Data

Analysis Population Description
Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Arm/Group Title Color-matched Rice Powder Pill Chokeberry Extract Capsule
Arm/Group Description Color-matched rice powder pill Placebo capsule: Color-matched rice powder pill, 2 x 250 mg/day for 12 weeks Chokeberry Extract: Consumption of 2 x 250 mg chokeberry extract capsules daily for 12 weeks.
Measure Participants 24 25
Baseline
130
(13)
124
(12)
6 weeks
111
(11)
127
(12)
12 weeks
131
(11)
145
(17)
22. Secondary Outcome
Title Total Antioxidant Capacity
Description Fasting plasma total antioxidant capacity after chronic supplementation. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Time Frame Baseline, 6 weeks, 12 weeks

Outcome Measure Data

Analysis Population Description
Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Arm/Group Title Color-matched Rice Powder Pill Chokeberry Extract Capsule
Arm/Group Description Color-matched rice powder pill Placebo capsule: Color-matched rice powder pill, 2 x 250 mg/day for 12 weeks Chokeberry Extract: Consumption of 2 x 250 mg chokeberry extract capsules daily for 12 weeks.
Measure Participants 24 25
Baseline
210
(4)
208
(3)
6 weeks
214
(3)
211
(3)
12 weeks
209
(4)
207
(4)
23. Secondary Outcome
Title Catalase Activity
Description Catalase activity after chronic supplementation. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Time Frame Baseline, 6 weeks, 12 weeks

Outcome Measure Data

Analysis Population Description
Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Arm/Group Title Color-matched Rice Powder Pill Chokeberry Extract Capsule
Arm/Group Description Color-matched rice powder pill Placebo capsule: Color-matched rice powder pill, 2 x 250 mg/day for 12 weeks Chokeberry Extract: Consumption of 2 x 250 mg chokeberry extract capsules daily for 12 weeks.
Measure Participants 24 25
Baseline
41.7
(1.4)
41.1
(2.1)
6 weeks
35.5
(1.2)
38.7
(1.5)
12 weeks
41.7
(2.3)
41.2
(1.8)
24. Secondary Outcome
Title Glutathione Peroxidase Activity
Description Fasting plasma glutathione peroxidase activity after chronic supplementation. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Time Frame Baseline, 6 weeks, 12 weeks

Outcome Measure Data

Analysis Population Description
Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Arm/Group Title Color-matched Rice Powder Pill Chokeberry Extract Capsule
Arm/Group Description Color-matched rice powder pill Placebo capsule: Color-matched rice powder pill, 2 x 250 mg/day for 12 weeks Chokeberry Extract: Consumption of 2 x 250 mg chokeberry extract capsules daily for 12 weeks.
Measure Participants 24 25
Baseline
2550
(140)
2550
(140)
6 weeks
2560
(130)
2500
(160)
12 weeks
2470
(110)
2650
(190)
25. Secondary Outcome
Title Superoxide Dismutase Activity
Description Fasting plasma superoxide dismutase after chronic supplementation. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Time Frame Baseline, 6 weeks, 12 weeks

Outcome Measure Data

Analysis Population Description
Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Arm/Group Title Color-matched Rice Powder Pill Chokeberry Extract Capsule
Arm/Group Description Color-matched rice powder pill Placebo capsule: Color-matched rice powder pill, 2 x 250 mg/day for 12 weeks Chokeberry Extract: Consumption of 2 x 250 mg chokeberry extract capsules daily for 12 weeks.
Measure Participants 24 25
Baseline
1190
(50)
1180
(40)
6 weeks
1190
(50)
1160
(40)
12 weeks
1160
(60)
1160
(40)
26. Secondary Outcome
Title Urinary Polyphenol Excretion
Description Overnight urinary polyphenol excretion after chronic supplementation. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Time Frame 12 weeks

Outcome Measure Data

Analysis Population Description
Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Arm/Group Title Color-matched Rice Powder Pill Chokeberry Extract Capsule
Arm/Group Description Color-matched rice powder pill Placebo capsule: Color-matched rice powder pill, 2 x 250 mg/day for 12 weeks Chokeberry Extract: Consumption of 2 x 250 mg chokeberry extract capsules daily for 12 weeks.
Measure Participants 24 25
Protocatechuic acid
1.38
1.20
3,4-dihydroxyphenylacetic acid
5.04
4.56
Hippuric acid
133
138
Ferulic acid
0.68
0.71
3-(4-hydroxyphenyl)propionic acid
3.91
3.36
Cyanidin-3-O-glucoside
0
0.00907
Cyanidin-3-O-galactoside
0
0.00466
Cyanidin-3-O-arabinoside
0
0
Peonidin-3-O-galactoside
0
0.008
Sum anthocyanins
0.014
0.134
27. Secondary Outcome
Title Energy-adjusted Nutrient Intake: Carbohydrate, Protein, Fat, Fiber
Description Energy-adjusted intake based on 3-day dietary recalls, determined by the average of baseline and 12 weeks. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Time Frame Baseline, 12 weeks

Outcome Measure Data

Analysis Population Description
Survey data were not available for two participants in the "Color-matched rice powder pill" group. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Arm/Group Title Color-matched Rice Powder Pill Chokeberry Extract Capsule
Arm/Group Description Color-matched rice powder pill Placebo capsule: Color-matched rice powder pill, 2 x 250 mg/day for 12 weeks Chokeberry Extract: Consumption of 2 x 250 mg chokeberry extract capsules daily for 12 weeks.
Measure Participants 22 25
Carbohydrate
238
(9)
241
(9)
Protein
89.2
(3.3)
90.3
(3.1)
Fat
27.8
(4.0)
77.6
(29.5)
Fiber
23.5
(1.6)
21.0
(1.5)
28. Secondary Outcome
Title Energy Intake
Description Energy intake reported from 3-day dietary recalls at baseline and 12 weeks, determined by the average of baseline and 12 weeks. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Time Frame Baseline, 12 weeks

Outcome Measure Data

Analysis Population Description
Survey data were not available for two participants in the "Color-matched rice powder pill" group. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Arm/Group Title Color-matched Rice Powder Pill Chokeberry Extract Capsule
Arm/Group Description Color-matched rice powder pill Placebo capsule: Color-matched rice powder pill, 2 x 250 mg/day for 12 weeks Chokeberry Extract: Consumption of 2 x 250 mg chokeberry extract capsules daily for 12 weeks.
Measure Participants 22 25
Mean (Standard Error) [kcal/d]
2230
(735)
1950
(530)
29. Secondary Outcome
Title Energy-adjusted Micronutrient Intake
Description Energy-adjusted micronutrient intake from 3-day dietary recalls at baseline and 12 weeks. Values reported as the average of baseline and 12 weeks. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Time Frame Baseline, 12 weeks

Outcome Measure Data

Analysis Population Description
Survey data were not available for two participants in the "Color-matched rice powder pill" group. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Arm/Group Title Color-matched Rice Powder Pill Chokeberry Extract Capsule
Arm/Group Description Color-matched rice powder pill Placebo capsule: Color-matched rice powder pill, 2 x 250 mg/day for 12 weeks Chokeberry Extract: Consumption of 2 x 250 mg chokeberry extract capsules daily for 12 weeks.
Measure Participants 22 25
Sodium
3490
(160)
3480
(150)
Calcium
947
(58)
1070
(50)
Iron
16.9
(1.3)
16.9
(1.2)
Vitamin D
5.0
(0.9)
7.1
(0.8)
Vitamin C
80.9
(12.9)
90.9
(12.1)
Vitamin E
10.6
(1.1)
10.8
(1.1)
30. Secondary Outcome
Title Polyphenol Intake
Description Energy-adjusted polyphenol intake assessed by 3-day dietary recalls at baseline and 12 weeks, values determined by average of baseline and 12 weeks. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Time Frame Baseline, 12 weeks

Outcome Measure Data

Analysis Population Description
Survey data were not available for two participants in the "Color-matched rice powder pill" group. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Arm/Group Title Color-matched Rice Powder Pill Chokeberry Extract Capsule
Arm/Group Description Color-matched rice powder pill Placebo capsule: Color-matched rice powder pill, 2 x 250 mg/day for 12 weeks Chokeberry Extract: Consumption of 2 x 250 mg chokeberry extract capsules daily for 12 weeks.
Measure Participants 22 25
Isoflavones
3.9
(2.7)
8.5
(2.6)
Flavanols
73.9
(20.0)
81.7
(18.7)
Flavones
54.1
(29.1)
50.3
(27.2)
Flavanones
28.8
(11.4)
22.4
(10.7)
Flavan-3-ols
20.6
(7.4)
26.0
(6.9)
Anthocyanins
18.2
(5.2)
26.6
(4.8)
Proanthocyanidins
222
(162)
418
(150)
31. Secondary Outcome
Title Intake of Dietary Antioxidant Capacity
Description Energy-adjusted intake of dietary antioxidant capacity determined by 3-day dietary recalls at baseline and 12 weeks. Values reported as average of baseline and 12 weeks. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Time Frame Baseline, 12 weeks

Outcome Measure Data

Analysis Population Description
Survey data were not available for two participants in the "Color-matched rice powder pill" group. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Arm/Group Title Color-matched Rice Powder Pill Chokeberry Extract Capsule
Arm/Group Description Color-matched rice powder pill Placebo capsule: Color-matched rice powder pill, 2 x 250 mg/day for 12 weeks Chokeberry Extract: Consumption of 2 x 250 mg chokeberry extract capsules daily for 12 weeks.
Measure Participants 22 24
Mean (Standard Error) [Vitamin C equivalents]
417
(95)
292
(89)
32. Secondary Outcome
Title Energy-adjusted Vitamin A Intake
Description Energy-adjusted vitamin A intake from 3-day dietary recalls at baseline and 12 weeks. Values reported as the average of baseline and 12 weeks. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Time Frame Baseline, 12 weeks

Outcome Measure Data

Analysis Population Description
Survey data were not available for two participants in the "Color-matched rice powder pill" group. Not determined in Chokeberry Extract Capsule (Acute) arm as this arm was a one-time dose.
Arm/Group Title Color-matched Rice Powder Pill Chokeberry Extract Capsule
Arm/Group Description Color-matched rice powder pill Placebo capsule: Color-matched rice powder pill, 2 x 250 mg/day for 12 weeks Chokeberry Extract: Consumption of 2 x 250 mg chokeberry extract capsules daily for 12 weeks.
Measure Participants 22 25
Mean (Standard Error) [retinol equivalent mcg/day]
3280
(740)
2690
(690)

Adverse Events

Time Frame During study intervention stage: 16 weeks
Adverse Event Reporting Description
Arm/Group Title Color-matched Rice Powder Pill Chokeberry Extract Capsule Chokeberry Extract Capsule (Acute)
Arm/Group Description Color-matched rice powder pill Placebo capsule: Color-matched rice powder pill, 2 x 250 mg/day for 12 weeks Chokeberry Extract: Consumption of 2 x 250 mg chokeberry extract capsules daily for 12 weeks. Chokeberry extract capsule, acute: Chokeberry extract capsule, 2 x 250 mg, one-time dose.
All Cause Mortality
Color-matched Rice Powder Pill Chokeberry Extract Capsule Chokeberry Extract Capsule (Acute)
Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 0/28 (0%) 0/28 (0%) 0/6 (0%)
Serious Adverse Events
Color-matched Rice Powder Pill Chokeberry Extract Capsule Chokeberry Extract Capsule (Acute)
Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 0/28 (0%) 0/28 (0%) 0/6 (0%)
Other (Not Including Serious) Adverse Events
Color-matched Rice Powder Pill Chokeberry Extract Capsule Chokeberry Extract Capsule (Acute)
Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 0/28 (0%) 0/28 (0%) 0/6 (0%)

Limitations/Caveats

[Not Specified]

More Information

Certain Agreements

Principal Investigators are NOT employed by the organization sponsoring the study.

There is NOT an agreement between Principal Investigators and the Sponsor (or its agents) that restricts the PI's rights to discuss or publish trial results after the trial is completed.

Results Point of Contact

Name/Title Dr. Bradley Bolling
Organization University of Wisconsin-Madison, Department of Food Science
Phone 608-890-0212
Email bwbolling@wisc.edu
Responsible Party:
Bradley Bolling, Assistant Professor, University of Connecticut
ClinicalTrials.gov Identifier:
NCT01541826
Other Study ID Numbers:
  • H11-311
  • 120068
First Posted:
Mar 1, 2012
Last Update Posted:
Jul 11, 2017
Last Verified:
Apr 1, 2017