德國亥姆霍茲慕尼黑中心日前發(fā)表公報說,,該機(jī)構(gòu)科研人員參與的一個國際研究小組新發(fā)現(xiàn)了12個Ⅱ型糖尿病致病基因,。該成果有助于了解Ⅱ型糖尿病的成因并改善其預(yù)防和治療方法,。
公報說,,研究小組在全球?qū)?4萬人進(jìn)行了檢查,,從中發(fā)現(xiàn)了12個新的Ⅱ型糖尿病致病基因,,它們中大多數(shù)都能夠影響人體胰島素的產(chǎn)生和效果,。這一發(fā)現(xiàn)令醫(yī)學(xué)界認(rèn)識的Ⅱ型糖尿病致病基因達(dá)到38個,。
研究首次證實了Ⅱ型糖尿病與X染色體有基因聯(lián)系,。由于女性有兩條X染色體,男性只有一條,,因此這一認(rèn)識有助于研究不同性別的糖尿病患病風(fēng)險,。此外,,研究還發(fā)現(xiàn),,這12個Ⅱ型糖尿病致病基因中的一部分也與其他疾病有關(guān),,如心臟病,、自體免疫性疾病和癌癥等,,這表明某些基因可同時導(dǎo)致多種疾病,。
研究人員說,,只有通過如此大規(guī)模的研究,才有可能找出這些單獨作用且容易被忽視的致病基因,,這些看似不起眼的基因?qū)φJ(rèn)識病因至關(guān)重要,,并將有助于研發(fā)有效的預(yù)防和治療方法,。
這一成果發(fā)表在最新一期的英國《自然·遺傳學(xué)》雜志上,。(生物谷www.bioon.net)
關(guān)于糖尿病的更多閱讀
七款糖尿病治療器械新產(chǎn)品
NEJM:糖尿病流行在中國
糖尿病治療新手段——生物谷專訪張濤博士
JAMA:揭示抑郁癥與糖尿病的雙向關(guān)聯(lián)
Nature Genetics:糖尿病和高血糖與生物鐘紊亂有關(guān)
生物谷推薦原文出處:
Nature Genetics doi:10.1038/ng.609
Twelve type 2 diabetes susceptibility loci identified through large-scale association analysis
David Altshuler,Michael Boehnke,,Philippe Froguel,Thomas Illig,,Mark I McCarthy,Kari Stefansson,,Cornelia M van Duijn,,James F Wilson et al
By combining genome-wide association data from 8,130 individuals with type 2 diabetes (T2D) and 38,987 controls of European descent and following up previously unidentified meta-analysis signals in a further 34,412 cases and 59,925 controls, we identified 12 new T2D association signals with combined P < 5 × 10?8. These include a second independent signal at the KCNQ1 locus; the first report, to our knowledge, of an X-chromosomal association (near DUSP9); and a further instance of overlap between loci implicated in monogenic and multifactorial forms of diabetes (at HNF1A). The identified loci affect both beta-cell function and insulin action, and, overall, T2D association signals show evidence of enrichment for genes involved in cell cycle regulation. We also show that a high proportion of T2D susceptibility loci harbor independent association signals influencing apparently unrelated complex traits.