JAMA Cardiol:“岁数大了,血压就会高”的观点或许不正确,不健康生活方式使然

2018-11-20 卢芳 中国循环杂志

一个人随着年龄增长而血压升高,正常吗?

一个人随着年龄增长而血压升高,正常吗?

JAMA心脏病学子刊上一项研究却认为,这不正常。

这项研究中,研究对象来自委内瑞拉雨林深处的两个部落:叶瓦(Yekwana)和燕玛(Yanomami)。

虽然相邻,但叶瓦族开始西化,而燕玛族依然古旧如原始社会。

研究者通过对比这两个部落的人群发现:血压增加,或是生活方式西化的结果。

研究显示,尽管两个部落的人在最初的时候血压相似,但随着时间推移,血压开始有差距,且差距越来越大。

随着年龄增长,燕玛族人每年的平均年龄-收缩压斜率为0.00 mmHg,就是说,随着年龄增加,血压不增加。

而叶瓦族人每年增加0.25 mmHg(P=0.003)。

在10岁时,叶瓦族人要比燕玛族人收缩压高5.8 mmHg;到50岁时,高出15.9 mmHg。

研究者发现,两个部落人群血压差异从儿童即有趋势。

研究者认为,这项研究捋清了衰老与现代生活方式,谁是高血压的“原罪”。

“美国女孩的血压约每年升高1.5 mmHg,男孩升高1.9 mmHg,成人约0.6 mmHg。我们进行的这项研究发现,血压随着年龄增长并非自然现象,而是非自然的西方生活方式暴露的结果。”研究者指出。

之前国际盐和血压研究(INTERSALT)也发现,吃盐最少的人群随年龄增加,血压是不升高的。

这项研究分析了83位叶瓦人和72位燕玛族人,两组在平均年龄(22.2岁 vs 22.4岁)、性别分别(33位男性50位女性;39位男性和33位女性)和身高(141.7 cm vs 138 cm)均无差异。

原始出处:Mueller NT, Noya-Alarcon, Contreras M, et al. Association of Age With Blood Pressure Across the Lifespan in Isolated Yanomami and Yekwana Villages. JAMA Cardiol. 2018 Nov 14.

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    2018-11-20 深海的鱼

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    2018-11-20 yjs木玉

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