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Relationship between proinflammatory cytokines (Il-1beta, Il-18) and leukocyte telomere length in mild cognitive impairment and Alzheimer's disease.
Experimental Gerontology ( IF 3.3 ) Pub Date : 2020-04-11 , DOI: 10.1016/j.exger.2020.110945
D Scarabino 1 , M Peconi 2 , E Broggio 3 , G Gambina 3 , E Maggi 4 , F Armeli 4 , E Mantuano 5 , M Morello 6 , R M Corbo 7 , R Businaro 4
Affiliation  

Inflammation plays a crucial role in Alzheimer's disease (AD). AD neurodegeneration and concurrent involvement of the peripheral immune system may promote leukocyte division and telomere shortening. We examined genotypes and plasma levels of two proinflammatory cytokines, IL-1beta and IL-18, and leukocyte telomere length (LTL) in patients with mild cognitive impairment (MCI) and AD. We wanted to determine whether changes in plasma IL-1beta and IL-18 levels, together with LTL shortening, could be diagnostic for disease progression from MCI to AD. Median plasma IL-1beta levels were in the order MCI patients (2.2 pg/ml) < AD patients (4.0 pg/ml), both of which differed significantly from the controls (0.0 pg/ml). In the AD patients, the lowest IL-1beta levels were associated with the presence of the C allele of IL-1beta rs16944 SNP. Median plasma IL-18 levels were in the order MCI patients (116.3 pg/ml) > AD patients (85.8 pg/ml), both of which were significantly higher than in the controls (17.6 pg/ml). Analysis of LTL showed a progressive reduction in the order controls > MCI > AD patients (p < 0.0001). Overall LTL reduction was correlated with increased plasma IL-1beta levels, substantiating the hypothesis that inflammatory processes secondary to neuroinflammation may trigger telomere attrition. Changes in plasma IL-1beta and Il-18 levels, and LTL seem to reflect shifts in AD stage; they may have potential use as blood biomarkers to monitor disease onset and progression from MCI to AD.

中文翻译:

轻度认知障碍和阿尔茨海默病中促炎细胞因子(Il-1beta、Il-18)与白细胞端粒长度的关系。

炎症在阿尔茨海默病 (AD) 中起着至关重要的作用。AD 神经变性和同时参与外周免疫系统可能会促进白细胞分裂和端粒缩短。我们检查了轻度认知障碍 (MCI) 和 AD 患者的两种促炎细胞因子 IL-1beta 和 IL-18 的基因型和血浆水平,以及白细胞端粒长度 (LTL)。我们想确定血浆 IL-1beta 和 IL-18 水平的变化以及 LTL 缩短是否可以诊断从 MCI 到 AD 的疾病进展。中位血浆 IL-1beta 水平的顺序是 MCI 患者 (2.2 pg/ml) < AD 患者 (4.0 pg/ml),两者都与对照组 (0.0 pg/ml) 有显着差异。在 AD 患者中,最低的 IL-1beta 水平与 IL-1beta rs16944 SNP 的 C 等位基因的存在有关。中位血浆 IL-18 水平依次为 MCI 患者 (116.3 pg/ml) > AD 患者 (85.8 pg/ml),两者均显着高于对照组 (17.6 pg/ml)。LTL 分析显示,对照组 > MCI > AD 患者的顺序逐渐减少(p < 0.0001)。总体 LTL 减少与血浆 IL-1beta 水平升高相关,证实了继发于神经炎症的炎症过程可能引发端粒磨损的假设。血浆 IL-1beta 和 Il-18 水平以及 LTL 的变化似乎反映了 AD 阶段的变化;它们可能具有作为血液生物标志物的潜在用途,用于监测从 MCI 到 AD 的疾病发作和进展。LTL 分析显示,对照组 > MCI > AD 患者的顺序逐渐减少(p < 0.0001)。总体 LTL 减少与血浆 IL-1beta 水平升高相关,证实了继发于神经炎症的炎症过程可能引发端粒磨损的假设。血浆 IL-1beta 和 Il-18 水平以及 LTL 的变化似乎反映了 AD 阶段的变化;它们可能具有作为血液生物标志物的潜在用途,用于监测从 MCI 到 AD 的疾病发作和进展。LTL 分析显示,对照组 > MCI > AD 患者的顺序逐渐减少(p < 0.0001)。总体 LTL 减少与血浆 IL-1beta 水平升高相关,证实了继发于神经炎症的炎症过程可能引发端粒磨损的假设。血浆 IL-1beta 和 Il-18 水平以及 LTL 的变化似乎反映了 AD 阶段的变化;它们可能具有作为血液生物标志物的潜在用途,用于监测从 MCI 到 AD 的疾病发作和进展。LTL 似乎反映了 AD 阶段的转变;它们可能具有作为血液生物标志物的潜在用途,用于监测从 MCI 到 AD 的疾病发作和进展。LTL 似乎反映了 AD 阶段的转变;它们可能具有作为血液生物标志物的潜在用途,用于监测从 MCI 到 AD 的疾病发作和进展。
更新日期:2020-04-13
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