BMJ:海鲜中的长链不饱和脂肪酸有助于老年人群健康

2018-10-23 zhangfan MedSci原创

研究认为来 补充来自海产品中的二十碳五烯酸和二十二碳五烯酸可降低老年人群疾病风险,但海鲜中的二十二碳六烯酸和植物中的α-亚麻酸则与老年健康不相关

近日研究人员就老年人群血液中Omega 3多不饱和脂肪酸(n3-PUFA)水平与衰老的相关性进行了考察。

262名老年志愿者参与研究,基线平均年龄74.4岁,参与者在1992-93、1998-99以及2005-06年间分别接受血液中磷脂化n3-PUFA含量测定,包括总脂肪酸、α-亚麻酸、二十碳五烯酸、二十二碳五烯酸和二十二碳六烯酸。研究的主要终点为健康衰老,定义为无慢性疾病(如血管疾病、癌症、肺病和严重慢性肾脏疾病),无认知和身体功能障碍或因其他原因死亡。

研究发现,长链n3-PUFAs含量与20%的不健康衰老风险相关,其含量增加导致非健康衰老风险降低18%,二十碳五烯酸和二十二碳五烯酸,而非二十二碳六烯酸可分别降低15%和16%的非健康衰老风险。植物来源的α-亚麻酸与健康衰老的相关性不显著。

研究认为来 补充来自海产品中的二十碳五烯酸和二十二碳五烯酸可降低老年人群疾病风险,但海鲜中的二十二碳六烯酸和植物中的α-亚麻酸则与老年健康不相关。

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    2018-12-09 gaoxiaoe
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    2018-10-25 hjwang85

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