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西梅干、李子干与骨骼健康:全面综述

Dried Plums, Prunes and Bone Health: A Comprehensive Review.

作者信息

Wallace Taylor C

机构信息

Department of Nutrition and Food Studies, George Mason University, Fairfax, VA 22030, USA.

Think Healthy Group, Inc., Washington, DC 20001, USA.

出版信息

Nutrients. 2017 Apr 19;9(4):401. doi: 10.3390/nu9040401.

Abstract

The 2015-2020 Dietary Guidelines for Americans advocate for increasing fruit intake and replacing energy-dense foods with those that are nutrient-dense. Nutrition across the lifespan is pivotal for the healthy development and maintenance of bone. The National Osteoporosis Foundation estimates that over half of Americans age 50+ have either osteoporosis or low bone mass. Dried plums, also commonly referred to as prunes, have a unique nutrient and dietary bioactive profile and are suggested to exert beneficial effects on bone. To further elucidate and summarize the potential mechanisms and effects of dried plums on bone health, a comprehensive review of the scientific literature was conducted. The PubMed database was searched through 24 January 2017 for all cell, animal, population and clinical studies that examined the effects of dried plums and/or extracts of the former on markers of bone health. Twenty-four studies were included in the review and summarized in table form. The beneficial effects of dried plums on bone health may be in part due to the variety of phenolics present in the fruit. Animal and cell studies suggest that dried plums and/or their extracts enhance bone formation and inhibit bone resorption through their actions on cell signaling pathways that influence osteoblast and osteoclast differentiation. These studies are consistent with clinical studies that show that dried plums may exert beneficial effects on bone mineral density (BMD). Long-term prospective cohort studies using fractures and BMD as primary endpoints are needed to confirm the effects of smaller clinical, animal and mechanistic studies. Clinical and prospective cohort studies in men are also needed, since they represent roughly 29% of fractures, and likewise, diverse race and ethnic groups. No adverse effects were noted among any of the studies included in this comprehensive review. While the data are not completely consistent, this review suggests that postmenopausal women may safely consume dried plums as part of their fruit intake recommendations given their potential to have protective effects on bone loss.

摘要

《2015 - 2020年美国人膳食指南》提倡增加水果摄入量,并用营养丰富的食物替代能量密集型食物。一生中的营养对于骨骼的健康发育和维持至关重要。美国国家骨质疏松基金会估计,50岁及以上的美国人中,超过一半患有骨质疏松症或骨质含量低。干李子,通常也被称为西梅,具有独特的营养和膳食生物活性特征,并被认为对骨骼有有益作用。为了进一步阐明和总结干李子对骨骼健康的潜在机制和影响,对科学文献进行了全面综述。通过检索PubMed数据库至2017年1月24日,查找所有研究干李子和/或其提取物对骨骼健康标志物影响的细胞、动物、人群和临床研究。该综述纳入了24项研究,并以表格形式进行了总结。干李子对骨骼健康的有益作用可能部分归因于水果中存在的多种酚类物质。动物和细胞研究表明,干李子和/或其提取物通过影响成骨细胞和破骨细胞分化的细胞信号通路发挥作用,从而增强骨形成并抑制骨吸收。这些研究与临床研究一致,临床研究表明干李子可能对骨密度(BMD)产生有益影响。需要以骨折和骨密度作为主要终点的长期前瞻性队列研究来证实较小规模临床、动物和机制研究的效果。还需要针对男性的临床和前瞻性队列研究,因为男性骨折病例约占29%,同样也需要针对不同种族和族裔群体的研究。在这篇全面综述纳入的任何研究中均未发现不良反应。虽然数据并不完全一致,但该综述表明,鉴于绝经后女性食用干李子可能对骨质流失有保护作用,她们可以将其作为水果摄入建议的一部分安全食用。

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