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J Nutr Biochem. 2014 Mar;25(3):289-94. doi: 10.1016/j.jnutbio.2013.11.002. Epub 2013 Nov 27.

One-month strawberry-rich anthocyanin supplementation ameliorates cardiovascular risk, oxidative stress markers and platelet activation in humans.

Author information

1
Dipartimento di Science Cliniche Specialistiche ed Odontostomatologiche, Facoltà di Medicina, Università Politecnica delle Marche, Ancona, Italy.
2
Dipartimento di Science Cliniche Specialistiche ed Odontostomatologiche, Facoltà di Medicina, Università Politecnica delle Marche, Ancona, Italy; Dipartimento di Scienze Agrarie, Alimentari ed Ambientali, Università Politecnica delle Marche, Ancona, Italy.
3
Research Laboratory, Virgen de la Victoria Clinical Hospital (IMABIS Foundation), Malaga, Spain.
4
Neurobiology of Aging Laboratory, INRCA Scientific Technological Area, Ancona, Italy.
5
Scientific Direction, INRCA Scientific Technological Area, Ancona, Italy.
6
Grupo de Investigación en Polifenoles (GIP-USAL), Universidad de Salamanca, Spain.
7
Analysis Laboratory of INRCA Hospital, Ancona, Italy.
8
Instituto de Nutrición y Tecnología de los Alimentos Mataix Verdú, Departamento de Fisiología, Universidad de Granada, Granada, Spain.
9
Departamento de Citología e Histología Normal y Patológica, Facultad de Medicina, Universidad de Sevilla, Spain.
10
Dipartimento di Scienze Biomediche e Sanità Pubblica, Facoltà di Medicina, Università Politecnica delle Marche, Ancona, Italy.
11
Dipartimento di Scienze Agrarie, Alimentari ed Ambientali, Università Politecnica delle Marche, Ancona, Italy.
12
Dipartimento di Science Cliniche Specialistiche ed Odontostomatologiche, Facoltà di Medicina, Università Politecnica delle Marche, Ancona, Italy. Electronic address: m.a.battino@univpm.it.

Abstract

Strawberries are an important fruit in the Mediterranean diet because of their high content of essential nutrients and beneficial phytochemicals, which seem to exert beneficial effects in human health. Healthy volunteers were supplemented daily with 500 g of strawberries for 1 month. Plasma lipid profile, circulating and cellular markers of antioxidant status, oxidative stress and platelet function were evaluated at baseline, after 30 days of strawberry consumption and 15 days after the end of the study. A high concentration of vitamin C and anthocyanins was found in the fruits. Strawberry consumption beneficially influenced the lipid profile by significantly reducing total cholesterol, low-density lipoprotein cholesterol and triglycerides levels (-8.78%, -13.72% and -20.80%, respectively; P<.05) compared with baseline period, while high-density lipoprotein cholesterol remained unchanged. Strawberry supplementation also significant decreased serum malondialdehyde, urinary 8-OHdG and isoprostanes levels (-31.40%, -29.67%, -27.90%, respectively; P<.05). All the parameters returned to baseline values after the washout period. A significant increase in plasma total antioxidant capacity measured by both ferric reducing ability of plasma and oxygen radical absorbance capacity assays and vitamin C levels (+24.97%, +41.18%, +41.36%, respectively; P<.05) was observed after strawberry consumption. Moreover, the spontaneous and oxidative hemolysis were significant reduced (-31.7% and -39.03%, respectively; P<.05), compared to the baseline point, which remained stable after the washout period. Finally, strawberry intake significant decrease (P<.05) the number of activated platelets, compared to both baseline and washout values. Strawberries consumption improves plasma lipids profile, biomarkers of antioxidant status, antihemolytic defenses and platelet function in healthy subjects, encouraging further evaluation on a population with higher cardiovascular disease risk.

KEYWORDS:

CVD risk; Cholesterol; LDL-C; Platelet activation; Strawberry consumption; Triglycerides

PMID:
24406274
DOI:
10.1016/j.jnutbio.2013.11.002
[Indexed for MEDLINE]

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