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Platelet biomarkers identifying mild cognitive impairment in type 2 diabetes patients

机译:血小板生物标志物鉴定2型糖尿病患者中的轻度认知障碍

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Type 2 diabetes mellitus (T2DM) is an independent risk factor of Alzheimer's disease (AD). Therefore, identifying periphery biomarkers correlated with mild cognitive impairment (MCI) is of importance for early diagnosis of AD. Here, we performed platelet proteomics in T2DM patients with MCI (T2DM-MCI) and without MCI (T2DM-nMCI). Pearson analysis of the omics data with MMSE (mini-mental state examination), Aβ1-42/Aβ1-40 (β-amyloid), and rGSK-3β(T/S9) (total to Serine-9-phosphorylated glycogen synthase kinase-3β) revealed that mitophagy/autophagy-, insulin signaling-, and glycolysis/gluconeogenesis pathways-related proteins were most significantly involved. Among them, only the increase of optineurin, an autophagy-related protein, was simultaneously correlated with the reduced MMSE score, and the increased Aβ1-42/Aβ1-40 and rGSK-3β(T/S9), and the optineurin alone could discriminate T2DM-MCI from T2DM-nMCI. Combination of the elevated platelet optineurin and rGSK-3β(T/S9) enhanced the MCI-discriminating efficiency with AUC of 0.927, specificity of 86.7%, sensitivity of 85.3%, and accuracy of 0.859, which is promising for predicting cognitive decline in T2DM patients.
机译:2型糖尿病(T2DM)是阿尔茨海默病(AD)的独立危险因素。因此,鉴定与轻度认知障碍(MCI)相关的周边生物标志物对早期诊断广告的重要性。在这里,我们在T2DM患者中进行了血小板蛋白质组学,MCI(T2DM-MCI)和没有MCI(T2DM-NMCI)。 Pearson分析MMSE(迷你精神状态检查),Aβ1-42/Aβ1-40(β-淀粉样蛋白)和RGSK-3β(T / S9)的常规数据分析(总到丝氨酸-9-磷酸化糖苷合酶激酶 - 3β)揭示了MINOCHAGY /自噬 - ,胰岛素信号和糖酵解/葡糖基因途径相关蛋白质最显着地涉及。其中,只有opolineurin的增加,自噬相关蛋白质同时与减少的MMSE评分相关,并且增加的Aβ1-42/Aβ1-40和RGSK-3β(T / S9)和单独的致吲哚素可以区分来自T2DM-NMCI的T2DM-MCI。血小板致密脲和RGSK-3β(T / S9)的组合增强了0.927的MCI鉴别效率,特异性为86.7%,灵敏度为85.3%,精度为0.859,这是有希望预测T2DM的认知下降耐心。

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