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  • 期刊

非酵素性醣化與老化

Glycation and Process of Aging

摘要


還原糖與胺類在沒有酵素的存在下發生反應,產生黃棕色物質,此種反應稱非酵素性醣化反應(nonenzymatic glycation)或梅納反應(Maillard reaction),其產物統稱為高等脂化終產物(advance glycation end products,AGEs)。水果的褐變即為進行梅納反應的結果。隨著年紀的增長,動脈血管彈性降低、眼睛水晶體中晶體蛋白的溶解度變差等等老化現象漸漸出現,探究其原因,發現非酵索性反應為重要因素之一,於本篇中將簡介非酵素性反應於老化過程中所扮演之角色。

並列摘要


The reducing sugars may react nonenzymatically with amino groups of biological molecules in a process known as glycation or Maillard reaction. The initial phase of this reaction results in the formation of Schiff base intermediate that can undergo subsequent rearrangement into more stable Amadori products through a slow and complex transformation to form irreversible advanced glycation end-products (AGEs). As age advances, AGEs tend to accumulate on long-lived biological molecules, so the Maillard reaction considered to be involved in the aging process. This article will focus on the relationship between glycation and the process of aging.

並列關鍵字

Glycation Maillard reaction Amadori products AGEs Aging

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