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短期食用干李(梅干)对健康绝经后妇女骨吸收标志物和血管功能的影响:一项随机交叉试验。

Effects of Short-Term Dried Plum (Prune) Intake on Markers of Bone Resorption and Vascular Function in Healthy Postmenopausal Women: A Randomized Crossover Trial.

机构信息

Department of Nutrition, University of California, Davis, Davis, California, USA.

Division of Vascular and Endovascular Surgery, Department of Surgery, University of California, Davis, Sacramento, USA.

出版信息

J Med Food. 2019 Oct;22(10):982-992. doi: 10.1089/jmf.2018.0209. Epub 2019 Jun 13.

Abstract

Osteoporosis and cardiovascular disease are global health burdens, with postmenopausal women being at great risk. Dried plums/prunes (DPs) have been reported to provide bone health benefits in animal models, which is consistent with models. Data from human studies suggest that DP intake can enhance lipid metabolism, anti-inflammatory, and oxidant defense systems, which can impact cardiovascular health. We tested the hypothesis that short-term consumption of low and reasonable levels of DPs augments bone resorption and vascular function. Twenty-seven healthy, postmenopausal women were randomly assigned to consume six DPs (∼42 g) or two DPs (∼14 g) per day for 2 weeks, then a 2-week washout period and then crossed over. Serum C-telopeptide, beta-crosslinked (CTX) was used as a measure of bone resorption. Peripheral artery tonometry (PAT) was used to assess microvascular function. The pattern of changes in CTX in the second 2-week period (no change or decline) differed significantly from the pattern in the first 2 weeks (increases in both groups;  = 9.26,  = .006), suggesting a trend in CTX reduction (, a decrease in bone resorption) in those consuming six DPs per day in the second phase. No effects on vascular function were noted. A significant interaction was observed for the augmentation index, a measure of arterial stiffness, between treatment and years after menopause ( = .045). The results suggest a potentially favorable impact of DPs on bone health when assessed with a short-term, crossover study design in postmenopausal women. Given the novel assessments used in this study, follow-up studies are warranted.

摘要

骨质疏松症和心血管疾病是全球性的健康负担,绝经后妇女风险极高。干李子/梅干(DPs)已被报道在动物模型中提供骨骼健康益处,这与人类研究数据一致。来自人类研究的数据表明,DP 摄入可以增强脂质代谢、抗炎和抗氧化防御系统,从而影响心血管健康。我们检验了这样一个假设,即短期摄入低水平和合理水平的 DPs 会增强骨吸收和血管功能。27 名健康的绝经后妇女被随机分配每天食用 6 个 DPs(约 42 克)或 2 个 DPs(约 14 克),持续 2 周,然后进行 2 周的洗脱期,然后交叉。血清 C 端肽、β 交联(CTX)被用作骨吸收的测量指标。外周动脉张力测定(PAT)用于评估微血管功能。第二个 2 周期间 CTX 的变化模式(无变化或下降)与第一个 2 周的变化模式明显不同(两组均增加;=9.26,=0.006),表明每天食用 6 个 DPs 的人群中 CTX 减少(即骨吸收减少)的趋势。未观察到对血管功能的影响。动脉僵硬的测量指标——增强指数在治疗和绝经后年限之间观察到显著的相互作用(=0.045)。结果表明,在绝经后妇女中进行短期交叉研究设计评估时,DPs 对骨骼健康可能具有潜在的有益影响。鉴于本研究中使用的新评估方法,需要进行后续研究。

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