酸奶和泡菜能降血压!

毒手药王邓智先

导语：最新研究表明，摄取益生菌食物有益降血压！咱们喝着酸奶吃着泡菜就把血压降了。

标签：健康生活  高血压

　　翻译：郑帆 来源：医学界心血管微信频道，转载请注明出处。
　　根据最新的Meta分析结果，摄取富含益生菌的食物—酸奶，发酵乳，味噌汤，酱菜等—可以降低血压：平均收缩压和舒张压分别降低3.5和2.4mmHg。（结果已发表在July 21的Hypertension上）
　　研究者还发现在血压本身就高的人群以及长期食用多种益生菌的人群中，血压降低效果更明显。其中摄取超过一种益生菌食物种类的人群，平均收缩压降低了5.8mmHg。食用益生菌食物超过8周的人群，平均收缩压下降了4.39mmHg。
　　这项最新的Meta分析包括了9项临床试验共543名参与者。益生菌的来源各不相同：其中4项为酸奶，2项为发酵奶，1项为胶囊装益生菌补充物，1项为有益生菌的饮料，1项为含益生菌的奶酪。这些研究一般持续3到9周，每日益生菌摄取量在10的9次方到10的12次方CFU。
　　研究者Dr Saman Khalesi认为：尽管血压降低幅度虽小，但这一结果对公众的心血管健康或许有重要意义。未来需要对于不同种类的菌群降压效果以及益生菌降压机制的进一步探索。
　　原文：
　　Probiotics Benefit Blood Pressure in Meta-Analysis
　　QUEENSLAND, NEW ZEALAND – Consumption of probiotics—the live bacteria found in yogurt, kefir, miso soup, and sauerkraut, among other foods—can lower blood pressure to a modest degree, according to the results of a new meta-analysis [1].
　　The reductions in systolic and diastolic blood pressure were approximately 3.5 and 2.4 mmHg, respectively, although investigators observed larger reductions among individuals with elevated blood pressure at baseline and those who consumed multiple probiotic species.
　　“However, even a small reduction of blood pressure may have important public health benefits and cardiovascular consequences,” states Dr Saman Khalesi （Griffith University, Australia） in the article published July 21 in Hypertension.
　　Researchers point out that the Heart Outcomes Prevention Evaluation （HOPE） study showed a 3.3 mmHg reduction in systolic blood pressure, along with a 1.4 mmHg reduction in diastolic blood pressure, which were associated with a 22% relative reduction in risk of cardiovascular mortality, MI, or stroke.
　　The current meta-analysis included nine clinical trials with 543 participants. Probiotic species varied among the trials; four studies used yogurt as the source of probiotic bacteria, two used fermented and sour milk, one used probiotic supplements in capsule form, one used probiotic rosehip drinks, and one used probiotic cheese. The studies lasted three to nine weeks, and the total daily dose of probiotics ranged from 109 to 1012 colony-forming units.
　　In addition to the mean systolic blood pressure reduction of 3.5 mmHg, investigators note that five studies reported a significant reduction of over 5 mmHg in systolic blood pressure after participants consumed probiotics. The 2.4 mmHg overall reduction in diastolic blood pressure was significant but appears to be driven by one study in which an 8 mmHg reduction in diastolic blood pressure was observed.
　　For those who ate more than one probiotic species, the reduction in systolic blood pressure was 5.8 mmHg. Those who consumed probiotics for more than eight weeks had a 4.9 mmHg reduction in systolic blood pressure.
　　“These findings, along with results from [another] meta-analysis on the beneficial effect of probiotics on the lipid profile, suggest that probiotics may be used as a potential supplement for future interventions to prevent hypertension or improve blood pressure control,” conclude Khalesi et al. Future studies are needed, however, to clarify the effects of different products with different probiotic species on blood pressure. Mechanistic studies are also needed to determine how probiotics reduce blood pressure, they write.

紫苏叶

这样的意思是不是韩国人得高血压的比例最低？