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JAMA Int Med:惊天逆转——较高的BMI并不会增加死亡和心血管疾病事件风险

2016-08-02 fsy 译 MedSci原创

通过对不同身体脂肪重量的4046对基因完全相同的双胞胎进行的一项研究表明,具有较高的身体质量指数(肥胖的指标)的双胞胎兄弟姐妹,并不会增加心脏病或死亡的风险。这项研究是在瑞典于默奥大学进行的,该研究也表示较高的BMI与2型糖尿病的风险增加有关。这项研究今天发表在JAMA Internal Medicine杂志上。“结果表明,降低肥胖水平的生活方式的改变对死亡和心脏病风险并不会有影响,这与传统的肥胖

通过对不同身体脂肪重量的4046对基因完全相同的双胞胎进行的一项研究表明,具有较高的身体质量指数(肥胖的指标)的双胞胎兄弟姐妹,并不会增加心脏病或死亡的风险。这项研究是在瑞典于默奥大学进行的,该研究也表示,较高的BMI与2型糖尿病的风险增加有关。这项研究今天发表在JAMA Internal Medicine杂志上。

“结果表明,降低肥胖水平的生活方式的改变对死亡和心脏病风险并不会有影响,这与传统的肥胖相关的健康风险的常规理解相矛盾,”于默奥大学社会医学与康复部研究员Peter Nordström说。

“这项研究表明,肥胖和糖尿病之间有很强的关联,这使我们得出这样的结论:相对于降低心脏病发作和死亡率的风险,减轻体重的干预措施对于预防糖尿病更有效。”

在队列研究中,于默奥大学的Peter Nordström和同事们比较了4046对同卵双胞胎的健康数据。所有参与研究的双胞胎均有不同程度的身体脂肪,通过BMI进行测量。BMI不同但基因相同的兄弟姐妹为研究人员提供了一个独特的机会来评估与肥胖有关的健康风险,该评估独立于遗传因素。

在平均12.4年的随访期间,研究人员将死亡事件,心脏病和2型糖尿病的事件在双胞胎之间进行了差异比较。结果清楚地表明,具有较高BMI的双胞胎参与者与其双胞胎兄弟姐妹相比,死亡或心脏病的风险并没有增加。但是,具有更高BMI的双胞胎发展为2型糖尿病的风险增加。

该研究结果表明:

   ·在具有较高的BMI(平均值25.1)的双胞胎兄弟姐妹中,在随访期间有203例心脏病(5%)和550例死亡(13.6%)事件。

   ·在具有较低的BMI(平均值23.9)的双胞胎兄弟姐妹中,同期有209例心脏病(5.2%)和633例死亡(15.6%)事件。

   ·在研究中的65对BMI差异为7或更高的双胞胎中,其中有一个双胞胎兄弟姐妹的BMI为30或更高,与较高BMI相关的死亡率或心脏病事件风险仍然没有明显增加。

这项研究,在BMI不同的双胞胎中描述了心肌梗塞,死亡和糖尿病的风险,是基于瑞典双胞胎登记完成的,是全球同类研究中规模最大的。在研究时,双胞胎的平均年龄为57.5岁,参与者的平均年龄从42-92岁不等。该队列研究是于1998年至2003年间进行的,研究人员在10年期间对死亡,心脏病和糖尿病事件进行了随访,随访直到2013年。该研究的限制性是体重和身高(用来计算BMI)是参与者自我报告的。

原始出处:

Peter Nordström, Nancy L. Pedersen, Yngve Gustafson, Risks of Myocardial Infarction, Death, and Diabetes in Identical Twin Pairs With Different Body Mass Indexes. JAMA Internal Medicine,,2016.8.1

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    2016-09-11 1e10c84am36(暂无匿称)

    己拜读,受益匪浅

    0

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    2016-08-23 The one 00000

    学习学习,谢谢分享

    0

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    2016-08-06 oo902

    惊天逆转

    0

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