草莓适度改善老年人的认知和心血管健康。

IF 3.3 3区 医学 Q2 CARDIAC & CARDIOVASCULAR SYSTEMS
Kristin Delaney, Michelle Tsang, Mark Kern, Vernon Uganiza Rayo, Nathaniel Jason, Mee Young Hong, Changqi Liu, Shirin Hooshmand
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引用次数: 0

摘要

背景和目的:考虑到草莓的营养成分和抗氧化能力,食用草莓可能有助于改善认知功能和心血管健康。我们假设,与对照组相比,每天2杯新鲜草莓作为冻干草莓粉(26克/天)可能改善认知能力和心血管健康。方法与结果:采用随机、交叉、双盲、安慰剂对照的临床试验,35名健康老年人(女性17名,男性18名,年龄72±6岁,BMI 26.4±3.9 kg/m2),每天食用26g冻干草莓粉(strawberry)和对照粉(control),各8周,并有4周的洗期。草莓补充剂有望改善心脏代谢健康参数,并通过美国国立卫生研究院工具箱测量认知能力。结论:本研究表明,26g冻干草莓可提高认知处理速度,降低收缩压,提高抗氧化能力,可能促进认知功能并改善认知健康个体的心血管危险因素。临床试验注册:NCT04786665。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Strawberries modestly improve cognition and cardiovascular health in older adults.

Background and aims: Strawberry consumption may aid in improving cognitive function and cardiovascular health given their nutrient composition and antioxidant capacities. We hypothesized that 2 cups of fresh strawberries per day provided as a freeze-dried strawberry powder (26 g/d) may improve cognitive performance and cardiovascular health relative to a control.

Methods and results: Using a randomized, crossover, double-blind, placebo-controlled clinical trial, 35 healthy older adults (17 women, 18 men, age 72 ± 6 years, BMI 26.4 ± 3.9 kg/m2) consumed 26 g of freeze-dried strawberry powder (strawberry) and a control powder (control) daily for 8 weeks each with a 4-week washout period. Strawberry supplementation was expected to improve cardiometabolic health parameters, and cognitive performance measured with the National Institutes of Health Toolbox. Processing speed (p < 0.001) improved during the strawberry phase and episodic memory (p = 0.002) improved during the control phase. For cardiovascular measures, strawberry consumption reduced systolic blood pressure (p = 0.044) and a significant main effect of time for reduced waist circumference (p = 0.043) was detected. Serum triglycerides increased in the control group (p = 0.012) but not after consuming strawberries. Total antioxidant capacity significantly decreased during the control phase (p = 0.032) and significantly increased with strawberry consumption (p = 0.047).

Conclusion: This study demonstrated that 26 g of freeze dried strawberries improve cognitive processing speed, lower systolic blood pressure, and increase antioxidant capacity, potentially promoting cognitive function and improving cardiovascular risk factors in cognitively healthy individuals.

Clinical trial registry: NCT04786665.

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来源期刊
CiteScore
6.80
自引率
2.60%
发文量
332
审稿时长
57 days
期刊介绍: Nutrition, Metabolism & Cardiovascular Diseases is a forum designed to focus on the powerful interplay between nutritional and metabolic alterations, and cardiovascular disorders. It aims to be a highly qualified tool to help refine strategies against the nutrition-related epidemics of metabolic and cardiovascular diseases. By presenting original clinical and experimental findings, it introduces readers and authors into a rapidly developing area of clinical and preventive medicine, including also vascular biology. Of particular concern are the origins, the mechanisms and the means to prevent and control diabetes, atherosclerosis, hypertension, and other nutrition-related diseases.
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