In Vitro Reactivity of the Glucose Degradation Product 3,4-Dideoxyglucosone-3-ene (3,4-DGE) towards Abundant Components of the Human Blood Circulatory System
作者:Andrea Auditore、Sabrina Gensberger-Reigl、Monika Pischetsrieder
DOI:10.3390/ijms23094557
日期:——
degradation product present in processed foods and medicinal products. Additionally, its constant formation from 3-deoxyglucosone in plasma has been suggested. Due to its α,β-unsaturated dicarbonyl moiety, 3,4-DGE is highly reactive and has shown harmful effects in vitro. Here, we investigated the impact of major components of the human blood circulatory system on 3,4-DGE in vitro. Under physiological conditions
3,4-Dideoxyglucosone-3-ene (3,4-DGE) 是一种存在于加工食品和医药产品中的葡萄糖降解产物。此外,有人提出它在血浆中由 3-脱氧葡萄糖酮不断形成。由于其 α,β-不饱和二羰基部分,3,4-DGE 具有高反应性,并在体外显示出有害作用。在这里,我们在体外研究了人体血液循环系统的主要成分对 3,4-DGE 的影响。在生理条件下,人血清白蛋白 (HSA) 的血浆浓度与 3,4-DGE 有效反应,7 小时后仅产生初始 3,4-DGE 浓度的 8.5%(对比没有 HSA 时的 83.4%,p< 0.001)。因此,可接近的硫醇基团从 0.121 减少到 0.064 mol/mol HSA,而 HSA 的酮洛芬结合和酯酶样活性不受影响。谷胱甘肽 (GSH) 的血浆浓度立即与 3,4-DGE 发生完全反应,导致两种立体异构加合物。与 3,4-DGE 结合的免疫球蛋白 G (IgG)