Advanced glycation end-product formation intermediate

The term **advanced glycation end-product formation intermediates / reactive carbonyl species** refers primarily to highly reactive dicarbonyl compounds such as methylglyoxal, glyoxal, and 3-deoxyglucosone, which are generated during the Maillard reaction as intermediates in the non-enzymatic glycation of proteins, nucleic acids, or lipids[2][3]. These intermediates are not proteins, enzymes, or receptors, but short-lived chemical species whose accumulation leads to the eventual formation of advanced glycation end-products (AGEs)[2][3][5]. Reactive carbonyl species originate from sugar autoxidation, lipid peroxidation, or metabolic pathways (such as glycolysis or the polyol pathway), and are key mediators of "carbonyl stress."[2][3] They covalently modify biological macromolecules, contributing to protein dysfunction, oxidative stress, and inflammation[4]. They are strongly implicated in the pathogenesis of chronic diseases like diabetes, cardiovascular disease, and neurodegeneration due to their damaging effects and their role in AGE formation[1][4]. Pharmacological intervention often focuses on scavenging these intermediates to reduce downstream AGE formation, but targeting them directly is chemically challenging and not equivalent to traditional receptor or enzyme drug targeting[2][3].

Other names

Reactive carbonyl speciesAGE intermediatesMaillard reaction intermediates

Carbonyl scavenging; Prevention of advanced glycation end-product formation