Lancet diabetes endo:30岁以上人群也可患1型糖尿病。

2017-12-01 MedSci MedSci原创

1型糖尿病好发于儿童和青少年。已明确年轻发病的1型糖尿病具有遗传易感性,且不会发展成2型糖尿病。目前尚不清楚,1型糖尿病的遗传易感性,在30岁以后,导致糖尿病诊断的贡献度。现有研究人员研究在60岁内由高遗传易感性导致的1型糖尿病的概率和表型。Nicholas J Thomas等人开展一横断面分析,运用一种基于29种常见变异的1型糖尿病遗传风险评分,以确定英国的有或高或低患1型糖尿病的遗传易感风险的

1型糖尿病好发于儿童和青少年。已明确年轻发病的1型糖尿病具有遗传易感性,且不会发展成2型糖尿病。目前尚不清楚,1型糖尿病的遗传易感性,在30岁以后,导致糖尿病诊断的贡献度。现有研究人员研究在60岁内由高遗传易感性导致的1型糖尿病的概率和表型。

Nicholas J Thomas等人开展一横断面分析,运用一种基于29种常见变异的1型糖尿病遗传风险评分,以确定英国的有或高或低患1型糖尿病的遗传易感风险的一半人口中具有欧洲白人血统的个体。用Kaplan-Meier分析评估60岁内两组糖尿病病例的数量。与低遗传易感性组相比,研究人员将高遗传易感性组的1型糖尿病作为发生的糖尿病额外的病例。其余所有病例定义为2型糖尿病。评估两组根据遗传界定的1型和2型糖尿病的临床特征。

英国具有欧洲血统的379 511人中,有13 250(3.5%)在60岁前确诊糖尿病。高遗传易感性组的一半人群,比低遗传易感性组的一半人群,多1286例糖尿病。遗传界定的1型糖尿病贯穿了所有确诊糖尿病的年龄;537例(42%)在31-60岁确诊糖尿病,占30岁后确诊的所有类型的糖尿病的4%(537/12 233)。31-60岁确诊的1型糖尿病患者的临床特征与30岁及以前确诊1型糖尿病的人群的临床特征相似。对于31-60岁确诊1型糖尿病的个体,1型糖尿病的特征与2型糖尿病的特征有所区别:其BMI更低(27.4kg/m2[95% CI26.7-28.0] vs 32.4kg/m2[32.2-32.5];p<0.0001),在确诊的第一年里更倾向于使用胰岛素(89%[476/537] vs 6%[648/11 696];p<0.0001),并更容易发生糖尿病酮症酸中毒(11%[61/537] vs 0.3%[30/11 696];p<0.0001)。

1型糖尿病的遗传易感性可导致非肥胖相关的、胰岛素依赖性的糖尿病,60岁内各年龄均可发病(60岁后未调研,不否认不可发病)。研究结果强调由于2型糖尿病的发病背景增加,30岁后确诊1型糖尿病具有一定困难。鉴于1型糖尿病患者可迅速进展至胰岛素依赖,所有如不能及时正确的诊断晚发性1型糖尿病,会带来严重后果。

原始出处:

Nicholas J Thomas,et al.Frequency and phenotype of type 1 diabetes in the first six decades of life: a cross-sectional, genetically stratified survival analysis from UK Biobank.The Lancet Diabetes& Endocinology. November 30,2017.http://dx.doi.org/10.1016/S2213-8587(17)30362-5

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    2018-04-07 howi
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    2017-12-03 虈亣靌

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在这项社区为基础的队列中,房颤的终生风险为37%。多基因房颤风险的估计是可行的,加上临床危险因素负担可以解释长期房颤风险的严重梯度。

JCEM:在绝经后妇女中激素疗法与遗传易感性在骨折危险性方面的相互作用

之前有研究结果证明了绝经期妇女采用激素疗法(HT)可以对骨骼产生保护作用。然而,并没有详细探讨遗传易感性是否会影响激素疗法(HT)与骨折风险之间的联系。近日,JCEM杂志上发表了一篇研究文章,研究人员的目的是评估遗传易感性与激素疗法(HT)在骨折风险方面的相互作用。

Diabetologia:低出生体重的遗传易感性可能会增加2型糖尿病风险

最近的研究结果显示,低出生体重的遗传易感性可能会增加在以后的生活中发展为2型糖尿病的风险。以前的观察性研究认为低出生体重和2型糖尿病之间的存在一定关联,但是因为社会经济和生活方式等因素的影响,两者的联系很难被证明,因此研究人员此次使用了遗传关联分析来探究这个问题。杜兰大学的肥胖研究中心主任Lu Qi博士说:“我们的研究表明,由营养不良或其他原因所致的胎儿发育迟缓可能会影响以后的生活与糖尿病风险。在