尽管过度食用油炸食品被认为是阿尔茨海默病等生活方式疾病最重要的流行病学因素之一,2型糖尿病,肥胖,确切的机制仍然未知。本文旨在讨论加热食用油衍生的过氧化产物是否会导致生活方式疾病的细胞变性/死亡。用富含ω-6PUFA的植物油烹制的油炸食品,如油菜籽(canola),大豆,向日葵,和玉米油,已经含有或固有地通过过氧化产生“羟基壬烯醛”。如前所述,羟基壬烯醛促进热休克蛋白70.1(Hsp70.1)的羰基化,导致细胞回收受损蛋白质和稳定溶酶体膜的能力受损。直到现在,由于每天食用富含ω-6PUFA的植物油导致的溶酶体/自噬失败在细胞变性/死亡进展中的意义尚未报道。自从“钙蛋白酶-组织蛋白酶假说”在1998年被制定为缺血性神经元死亡的原因以来,它与阿尔茨海默氏症神经元死亡的相关性已被提出,特别注意羟基壬烯醛。然而,它与下丘脑的细胞死亡有关,肝脏,还有胰腺,特别是与食欲/能量控制有关,是未知的。下丘脑感知来自脂肪细胞来源的瘦素和循环游离脂肪酸的信息。循环脂肪酸及其氧化形式的浓度,尤其是羟基壬烯醛,在肥胖和/或老年受试者中增加。由于脂肪酸受体G蛋白偶联受体40(GPR40)在这些受试者中响应于过量或氧化脂肪酸的过度活化可能导致Ca2稳态的破坏,应评估GPR40过度激活是否会导致多种细胞死亡.这里,我们描述了富含ω-6PUFA的植物油衍生的羟基壬烯醛在溶酶体不稳定导致细胞死亡中的分子意义。通过氧化Hsp70.1,膳食PUFA-(外源性)和膜磷脂-(内在)过氧化产物“羟基壬烯,“当合并时,可能在包括阿尔茨海默病在内的多种生活方式疾病的发生中起着至关重要的作用。
Although excessive consumption of deep-fried foods is regarded as 1 of the most important epidemiological factors of lifestyle diseases such as Alzheimer\'s disease, type 2 diabetes, and obesity, the exact mechanism remains unknown. This review aims to discuss whether heated cooking oil-derived peroxidation products cause cell degeneration/death for the occurrence of lifestyle diseases. Deep-fried foods cooked in ω-6 PUFA-rich vegetable oils such as rapeseed (canola), soybean, sunflower, and corn oils, already contain or intrinsically generate \"
hydroxynonenal\" by peroxidation. As demonstrated previously,
hydroxynonenal promotes carbonylation of heat-shock protein 70.1 (Hsp70.1), with the resultant impaired ability of cells to recycle damaged proteins and stabilize the lysosomal membrane. Until now, the implication of lysosomal/autophagy failure due to the daily consumption of ω-6 PUFA-rich vegetable oils in the progression of cell degeneration/death has not been reported. Since the \"calpain-cathepsin hypothesis\" was formulated as a cause of ischemic neuronal death in 1998, its relevance to Alzheimer\'s neuronal death has been suggested with particular attention to
hydroxynonenal. However, its relevance to cell death of the hypothalamus, liver, and pancreas, especially related to appetite/energy control, is unknown. The hypothalamus senses information from both adipocyte-derived leptin and circulating free fatty acids. Concentrations of circulating fatty acid and its oxidized form, especially
hydroxynonenal, are increased in obese and/or aged subjects. As overactivation of the fatty acid receptor G-protein coupled receptor 40 (GPR40) in response to excessive or oxidized fatty acids in these subjects may lead to the disruption of Ca2+ homeostasis, it should be evaluated whether GPR40 overactivation contributes to diverse cell death. Here, we describe the molecular implication of ω-6 PUFA-rich vegetable oil-derived
hydroxynonenal in lysosomal destabilization leading to cell death. By oxidizing Hsp70.1, both the dietary PUFA- (exogenous) and the membrane phospholipid- (intrinsic) peroxidation product \"hydroxynonenal,\" when combined, may play crucial roles in the occurrence of diverse lifestyle diseases including Alzheimer\'s disease.