Mayo Clin Proc:EPA+DHA与冠心病风险减少相关?

2017-06-14 选题审校:应颖秋 编辑:贾朝娟 环球医学

二十碳五烯酸与长链ω-3脂肪酸(EPA+DHA)对冠心病(CHD)的作用仍有争议。2017年5月,发表在《Mayo Clin Proc》的一项荟萃分析显示,EPA+DHA可能与CHD风险减少相关,并且在RCTs的高风险人群中观察更大的益处。

二十碳五烯酸与长链ω-3脂肪酸(EPA+DHA)对冠心病(CHD)的作用仍有争议。2017年5月,发表在《Mayo Clin Proc》的一项荟萃分析显示,EPA+DHA可能与CHD风险减少相关,并且在RCTs的高风险人群中观察更大的益处。

目的:开展随机对照试验(RCTs)的荟萃分析来评估二十碳五烯酸与长链ω-3脂肪酸(EPA+DHA)对冠心病(CHD)作用,并开展前瞻性队列研究的荟萃分析来评估EPA+DHA摄入与CHD风险之间的关联。

方法:系统检索1947年1月1日至2015年11月2日期间Ovid/Medline、PubMed、Embase和Cochrane Library中的文献;确定了考察来自食物或补充剂的EPA+DHA与CHD的18项RCTs和16项前瞻性队列研究,包括心肌梗塞、心脏性猝死、冠心病死亡和心绞痛。采用随机效应荟萃分析模型产生总的相对风险估算值(SRREs)和95%CIs。在亚组和敏感性分析和荟萃回归中考察异质性。在分层剂量或摄入分析中评估剂量反应。评估发表偏倚。

结果:在RCTs中,EPA+DHA供给的CHD风险减少没有统计学意义(SRRE=0.94;95%CI,0.85~1.05)。来自RCTs数据的亚组分析显示,在高风险人群中EPA+DHA供给的CHD风险减少具有统计学意义,包括甘油三酯水平抬高(SRRE=0.84;95% CI,0.72~0.98)和低密度脂蛋白胆固醇抬高(SRRE=0.86;95% CI,0.76~0.98)的受试者。来自前瞻性队列研究数据的荟萃分析显示,较高的EPA+DHA摄入和任何CHD事件风险的SRRE是0.82(95%CI,0.74~0.92),具有统计学意义。

结论:结果显示,EPA+DHA可能与CHD风险减少相关,并且在RCTs的高风险人群中观察更大的益处。

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    2018-03-24 linlin2312
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    2017-06-16 gwc384
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    2017-06-16 sunylz
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    2017-06-15 189****7206

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