N.J. Kellow and M.T. Coughlan are with the Glycation, Nutrition and Metabolism Laboratory, Baker IDI Heart and Diabetes Institute, Melbourne, Victoria, Australia, and the Department of Epidemiology & Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia. M.T. Coughlan is with the Department of Medicine, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia.
Nutr Rev. 2015 Nov;73(11):737-59. doi: 10.1093/nutrit/nuv030. Epub 2015 Sep 15.
Advanced glycation end products (AGEs) formed via the Maillard reaction during the thermal processing of food contributes to the flavor, color, and aroma of food. A proportion of food-derived AGEs and their precursors is intestinally absorbed and accumulates within cells and tissues. AGEs have been implicated in the pathogenesis of diabetes-related complications and several chronic diseases via interaction with the receptor for AGEs, which promotes the transcription of genes that control inflammation. The dicarbonyls, highly reactive intermediates of AGE formation, are also generated during food processing and may incite inflammatory responses through 1) the suppression of protective pathways, 2) the incretin axis, 3) the modulation of immune-mediated signaling, and 4) changes in gut microbiota profile and metabolite sensors. In animal models, restriction of dietary AGEs attenuates chronic low-grade inflammation, but current evidence from human studies is less clear. Here, the emerging relationship between excess dietary AGE consumption and inflammation is explored, the utility of dietary AGE restriction as a therapeutic strategy for the attenuation of chronic diseases is discussed, and possible avenues for future investigation are suggested.
高级糖基化终产物(AGEs)是食物在热加工过程中通过美拉德反应形成的,有助于食物的风味、颜色和香气。一部分来源于食物的 AGEs 及其前体物在肠道中被吸收,并在细胞和组织内积累。AGEs 通过与 AGEs 受体相互作用,参与了糖尿病相关并发症和几种慢性疾病的发病机制,促进了控制炎症的基因的转录。在食物加工过程中也会产生二羰基化合物,AGE 形成的高反应性中间体,也可能通过以下方式引发炎症反应:1)抑制保护途径,2)肠促胰岛素轴,3)免疫介导信号的调节,4)改变肠道微生物组谱和代谢物传感器。在动物模型中,限制饮食中的 AGEs 可减轻慢性低度炎症,但目前来自人类研究的证据尚不清楚。本文探讨了过量饮食 AGE 摄入与炎症之间的新关系,讨论了限制饮食 AGE 作为减轻慢性疾病的治疗策略的效用,并提出了未来研究的可能途径。