Dose-dependent effects of anthocyanin supplementation on platelet function in subjects with dyslipidemia: A randomized clinical trial.

Abstract

BACKGROUND:

Dyslipidemia induces platelet hyperactivation and hyper-aggregation, which are linked to thrombosis. Anthocyanins could inhibit platelet function in vitro and in mice fed high-fat diets with their effects on platelet function in subjects with dyslipidemia remained unknown. This study aimed to investigate the effects of different doses of anthocyanins on platelet function in individuals with dyslipidemia.

METHODS:

A double-blind, randomized, controlled trial was conducted. Ninety-three individuals who were initially diagnosed with dyslipidemia were randomly assigned to placebo or 40, 80, 160 or 320 mg/day anthocyanin groups. The supplementations were anthocyanin capsules (Medox, Norway). Platelet aggregation by light aggregometry of platelet-rich plasma, P-selectin, activated GPⅡbⅢa, reactive oxygen species (ROS), and mitochondrial membrane potential were tested at baseline, 6 weeks and 12 weeks.

FINDINGS:

Compared to placebo group, anthocyanins at 80 mg/day for 12 weeks reduced collagen-induced platelet aggregation (-3.39±2.36%) and activated GPⅡbⅢa (-8.25±2.45%) (P < 0.05). Moreover, compared to placebo group, anthocyanins at 320 mg/day inhibited collagen-induced platelet aggregation (-7.05±2.38%), ADP-induced platelet aggregation (-7.14±2.00%), platelet ROS levels (-14.55±1.86%), and mitochondrial membrane potential (7.40±1.56%) (P < 0.05). There were dose-response relationships between anthocyanins and the attenuation of platelet aggregation, mitochondrial membrane potential and ROS levels (P for trend <0.05). Furthermore, significantly positive correlations were observed between changes in collagen-induced (r = 0.473) or ADP-induced (r = 0.551) platelet aggregation and ROS levels in subjects with dyslipidemia after the 12-week intervention (P < 0.05).

INTERPRETATION:

Anthocyanin supplementation dose-dependently attenuates platelet function, and 12-week supplementation with 80 mg/day or more of anthocyanins can reduce platelet function in individuals with dyslipidemia.

FUNDING:

None.

• Authors: Zezhong Tian, Kongyao Li, Die Fan, Yimin Zhao, Xiaoli Gao, Xilin Ma, Lin Xu, Yilin Shi, Fuli Ya, Jinchao Zou, Ping Wang, Yuheng Mao, Wenhua Ling, Yan Yang
• Journal: EBioMedicine (EBioMedicine) Vol. 70 Pg. 103533 (Aug 2021) ISSN: 2352-3964 [Electronic] Netherlands
• PMID: 34392146 (Publication Type: Journal Article, Randomized Controlled Trial)
• Copyright: Copyright © 2021 The Author(s). Published by Elsevier B.V. All rights reserved.

Chemical References

• Anthocyanins
• P-Selectin
• Platelet Aggregation Inhibitors
• Platelet Glycoprotein GPIIb-IIIa Complex
• Reactive Oxygen Species

Topics

• Adult
• Aged
• Anthocyanins (administration & dosage, pharmacology, therapeutic use)
• Dietary Supplements
• Dose-Response Relationship, Drug
• Dyslipidemias (drug therapy)
• Female
• Humans
• Male
• Middle Aged
• P-Selectin (blood)
• Platelet Aggregation (drug effects)
• Platelet Aggregation Inhibitors (administration & dosage, pharmacology, therapeutic use)
• Platelet Glycoprotein GPIIb-IIIa Complex (metabolism)
• Reactive Oxygen Species (blood)