糖尿病性认知功能障碍研究进展

Progress on diabetic cognitive dysfunction

糖尿病性认知功能障碍是糖尿病的重要并发症之一。胰岛素通过MAPK和PI3-K/Akt信号通路对认知功能具有重要保护作用。胰岛素抵抗可导致tau蛋白的过度磷酸化,形成神经纤维节;可竞争性抑制胰岛素降解酶,减少β淀粉样蛋白的降解;增强氧化应激,破坏神经元结构和功能的完整性,从而损伤认知功能。

Diabetic cognitive dysfunction is one of the important complications of diabetes mellitus. Insulin plays an important protective role in cognitive function through MAPK and PI3-K/Akt signaling pathway. Insulin resistance may give rise to excessive tau protein phosphorylation,formation of neurofibrillary tangles inhibits insulin degrading enzyme,reduces the degradation of amyloid β; enhances oxidative stress,further damages the integrity of the neuronal structure and function and eventually leads to cognitive dysfunction.