Dose-dependent Effect of Tart Cherry on Blood Pressure and Selected Inflammation Biomarkers: A GRADE-assessed Systematic Review and Meta-analysis of Randomized Controlled Trials

Overview

Journal Heliyon

Specialty Social Sciences

Date 2023 Oct 9

PMID 37809623

Authors

Mostafa Norouzzadeh

Minoo Hasan Rashedi

Hossein Shahinfar

Seyedeh Tayebeh Rahideh

Affiliations

Soon will be listed here.

Abstract

Objectives: As a nutritious food, Tart cherries ( L) benefit cardiovascular health. This study aims to clarify the effectiveness of Tart cherry in controlling blood pressure, heart rate, and inflammatory biomarkers, the appropriate dosage for this effect, and suggest directions for future studies.

Methods: PubMed, Scopus, and Web of Science were searched (up to May 2022), to identify eligible randomized controlled trials. It measured publication bias and was assessed for all outcomes. Evidence quality was evaluated using the Cochrane risk of bias tool and GRADE (Grades of Recommendations, Assessment, Development, and Evaluations)

Results: Regarding the 21 included trials, Tart cherry didn't affect blood pressure, heart rate, high-sensitive C-reactive protein, and interleukin-6 (P > 0.05). In contrast, with moderate certainty, it can reduce serum C-reactive protein (WMD: - 0.39 mg/l; 95% CI: - 0.74, - 0.05; P = 0.024) and with very low certainty can decrease tumor necrosis factor-alpha (WMD: - 0.14 pg/ml; 95% CI: - 0.27, - 0.02; P = 0.026). In addition, dose-response analysis implies that with each 30 ml elevation in dose, CRP reduces by 0.19 mg/l (95% CI: - 0.37, - 0.01).

Conclusions: Tart cherry can control inflammation by administering the proper dose. Even though tart cherry generally doesn't affect blood pressure and heart rate, further high-quality studies are needed to determine its effect.

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