Type 2 diabetes has become major public health challenges in China. Therefore, there is an urgent need to identify risk factors and establish cost-effective strategies to prevent and control type 2 diabetes. Animal studies and human evidence suggested that lipopolysaccharide-binding protein (LBP), an indicator of "effective" lipopolysaccharide (LPS) levels, might be associated with chronic systemic inflammation and the prevalence of type 2 diabetes. However, the causal relationship between LBP and risk of type 2 diabetes need to be confirmed in longitudinal studies. Meanwhile, it's unclear whether these associations are modified by genetic variants which are involved in LPS-LBP pathway. Therefore, we examined prospectively the association between plasma LBP concentration and risk of type 2 diabetes in a large cohort followed for 6 years. In addition, we investigate the interaction between LBP and genetic variants on type 2 diabetes, and explore the underlying mechanism. This study will provide novel insights into developing new therapeutic strategy for the treatment of type 2 diabetes.
近年来我国2型糖尿病患病率急剧上升,对我国的国民健康造成了极大的威胁。因此,探讨2型糖尿病发病风险的影响因素,寻找早期预测指标和干预靶点已成为我国亟需解决的问题。动物实验和横断面调查提示菌群生物标记物脂多糖结合蛋白(LBP)可能是机体炎症的早期指标,并且它与2型糖尿病患病率相关。然而二者之间是否存在因果关系,这一关系是否受到遗传变异的影响,以及其中潜在的作用机制还尚缺乏系统性的人群追踪研究。本项目拟在已有的前瞻性研究和全基因组遗传多态性位点数据库基础上,首次在大规模的具有代表性的人群样本中系统性地研究LBP对2型糖尿病发病风险的预测作用,分析其与多种代谢相关指标(糖脂代谢、炎性因子和脂肪细胞因子等)的相关性,探讨潜在的作用机理,并通过筛选LPS-LBP通路相关基因遗传变异位点,研究遗传变异对上述关系的修饰作用,从而为探寻新的2型糖尿病致病机理,发现新的生物标志物或干预靶标提供重要研究数据。
近年来我国2型糖尿病患病率急剧上升,对我国的国民健康造成了极大的威胁。因此,探讨2型糖尿病发病风险的影响因素,寻找早期预测指标和干预靶点已成为我国亟需解决的问题。动物实验和横断面调查提示菌群生物标记物脂多糖结合蛋白(LBP)可能是机体炎症的早期指标,并且它与2型糖尿病患病率相关。然而二者之间是否存在因果关系,这一关系是否受到遗传变异的影响,以及其中潜在的作用机制还尚缺乏系统性的人群追踪研究。本项目在已有的前瞻性研究和全基因组遗传多态性位点数据库基础上,在国际上首次发现血浆LBP水平的升高可显著增加代谢综合征的6年发病风险,并且在正常体重个体中作用更强。并且通过全基因组关联研究发现了两个LBP相关的遗传变异位点,从而为探寻新的2型糖尿病致病机理,发现新的生物标志物或干预靶标提供重要研究数据。
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数据更新时间:2023-05-31
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