Effect of Strawberries on Cardiovascular Disease Risk

NCT ID: NCT01989637

Last Updated: 2023-08-21

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

34 participants

Study Classification

INTERVENTIONAL

Study Start Date

2013-07-31

Study Completion Date

2014-06-30

Brief Summary

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It is important to identify and evaluate foods, such as strawberries, that can improve established and emerging cardiovascular risk factors, such as postprandial lipid and glycemic responses, and vascular health. Postprandial derangements may affect multiple metabolic pathways that lead to increased arterial stiffness. Research has demonstrated the potential of strawberries to ameliorate postprandial responses to a high fat/high glucose meal. Further research is needed to demonstrate this effect in better controlled clinical studies and explore whether metabolic effects lead to improved arterial health.

The investigators propose to examine the effects of adding 40 g of freeze-dried strawberry powder to a high fat/high glucose meal on postprandial cardiovascular risk factor including lipids, insulin, glucose, and arterial stiffness and central blood pressure. The investigators hypothesize that the bioactive components of strawberry powder will attenuate postprandial lipemic and glycemic responses, as well as improve measures of arterial health.

Detailed Description

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Conditions

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Cardiovascular Disease

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

OTHER

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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Strawberry Meal

40 g freeze-dried strawberries included in test meal

Group Type EXPERIMENTAL

Strawberry Meal

Intervention Type DIETARY_SUPPLEMENT

High-fat meal (50 g total fat) with 40 g freeze dried strawberry powder

Control Meal

Control consisting of matched test meal with strawberry flavoring instead of freeze-dried strawberry powder

Group Type PLACEBO_COMPARATOR

Control Meal

Intervention Type DIETARY_SUPPLEMENT

High-fat meal (50 g total fat) with a matched placebo powder containing no strawberry bioactives

Interventions

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Strawberry Meal

High-fat meal (50 g total fat) with 40 g freeze dried strawberry powder

Intervention Type DIETARY_SUPPLEMENT

Control Meal

High-fat meal (50 g total fat) with a matched placebo powder containing no strawberry bioactives

Intervention Type DIETARY_SUPPLEMENT

Eligibility Criteria

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Inclusion Criteria

* 20-50 years of age
* LDL-C below 160 mg/dL
* Triglycerides below 350 mg/dL
* No stage II hypertension (BP below 160/100 mmHg)
* Not taking medication for elevated lipids, blood pressure, or glucose

Exclusion Criteria

* Allergies to strawberries
* Known intolerance to high fat meals
* History of cardiovascular disease, kidney disease, diabetes or inflammatory diseases such as GI disorders and arthritis
* Use of non-steroidal anti-inflammatory or immunosuppressant drugs
* Conditions requiring the use of steroids
* Use of medication or supplements for elevated lipids, blood pressure or glucose
Minimum Eligible Age

20 Years

Maximum Eligible Age

50 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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California Strawberry Commission

OTHER

Sponsor Role collaborator

Penn State University

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Penny M Kris-Etherton, PhD

Role: PRINCIPAL_INVESTIGATOR

The Pennsylvania State University

Locations

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Penn State University

University Park, Pennsylvania, United States

Site Status

Countries

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United States

References

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Burdge GC, Calder PC. Plasma cytokine response during the postprandial period: a potential causal process in vascular disease? Br J Nutr. 2005 Jan;93(1):3-9. doi: 10.1079/bjn20041282.

Reference Type BACKGROUND
PMID: 15705218 (View on PubMed)

Jennings A, Welch AA, Fairweather-Tait SJ, Kay C, Minihane AM, Chowienczyk P, Jiang B, Cecelja M, Spector T, Macgregor A, Cassidy A. Higher anthocyanin intake is associated with lower arterial stiffness and central blood pressure in women. Am J Clin Nutr. 2012 Oct;96(4):781-8. doi: 10.3945/ajcn.112.042036. Epub 2012 Aug 22.

Reference Type BACKGROUND
PMID: 22914551 (View on PubMed)

Erlund I, Koli R, Alfthan G, Marniemi J, Puukka P, Mustonen P, Mattila P, Jula A. Favorable effects of berry consumption on platelet function, blood pressure, and HDL cholesterol. Am J Clin Nutr. 2008 Feb;87(2):323-31. doi: 10.1093/ajcn/87.2.323.

Reference Type BACKGROUND
PMID: 18258621 (View on PubMed)

Basu A, Fu DX, Wilkinson M, Simmons B, Wu M, Betts NM, Du M, Lyons TJ. Strawberries decrease atherosclerotic markers in subjects with metabolic syndrome. Nutr Res. 2010 Jul;30(7):462-9. doi: 10.1016/j.nutres.2010.06.016.

Reference Type BACKGROUND
PMID: 20797478 (View on PubMed)

Basu A, Wilkinson M, Penugonda K, Simmons B, Betts NM, Lyons TJ. Freeze-dried strawberry powder improves lipid profile and lipid peroxidation in women with metabolic syndrome: baseline and post intervention effects. Nutr J. 2009 Sep 28;8:43. doi: 10.1186/1475-2891-8-43.

Reference Type BACKGROUND
PMID: 19785767 (View on PubMed)

Burton-Freeman B, Linares A, Hyson D, Kappagoda T. Strawberry modulates LDL oxidation and postprandial lipemia in response to high-fat meal in overweight hyperlipidemic men and women. J Am Coll Nutr. 2010 Feb;29(1):46-54. doi: 10.1080/07315724.2010.10719816.

Reference Type BACKGROUND
PMID: 20595645 (View on PubMed)

Jenkins DJ, Nguyen TH, Kendall CW, Faulkner DA, Bashyam B, Kim IJ, Ireland C, Patel D, Vidgen E, Josse AR, Sesso HD, Burton-Freeman B, Josse RG, Leiter LA, Singer W. The effect of strawberries in a cholesterol-lowering dietary portfolio. Metabolism. 2008 Dec;57(12):1636-44. doi: 10.1016/j.metabol.2008.07.018.

Reference Type BACKGROUND
PMID: 19013285 (View on PubMed)

Zunino SJ, Parelman MA, Freytag TL, Stephensen CB, Kelley DS, Mackey BE, Woodhouse LR, Bonnel EL. Effects of dietary strawberry powder on blood lipids and inflammatory markers in obese human subjects. Br J Nutr. 2012 Sep;108(5):900-9. doi: 10.1017/S0007114511006027. Epub 2011 Nov 9.

Reference Type BACKGROUND
PMID: 22068016 (View on PubMed)

Skulas-Ray AC, Kris-Etherton PM, Teeter DL, Chen CY, Vanden Heuvel JP, West SG. A high antioxidant spice blend attenuates postprandial insulin and triglyceride responses and increases some plasma measures of antioxidant activity in healthy, overweight men. J Nutr. 2011 Aug;141(8):1451-7. doi: 10.3945/jn.111.138966. Epub 2011 Jun 22.

Reference Type BACKGROUND
PMID: 21697300 (View on PubMed)

de la Garza AL, Milagro FI, Boque N, Campion J, Martinez JA. Natural inhibitors of pancreatic lipase as new players in obesity treatment. Planta Med. 2011 May;77(8):773-85. doi: 10.1055/s-0030-1270924. Epub 2011 Mar 16.

Reference Type BACKGROUND
PMID: 21412692 (View on PubMed)

Richter CK, Skulas-Ray AC, Gaugler TL, Lambert JD, Proctor DN, Kris-Etherton PM. Incorporating freeze-dried strawberry powder into a high-fat meal does not alter postprandial vascular function or blood markers of cardiovascular disease risk: a randomized controlled trial. Am J Clin Nutr. 2017 Feb;105(2):313-322. doi: 10.3945/ajcn.116.141804. Epub 2016 Dec 21.

Reference Type DERIVED
PMID: 28003205 (View on PubMed)

Other Identifiers

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PKE STR

Identifier Type: -

Identifier Source: org_study_id

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