Dontsov A E, Vospelnikova N D, Zack P P, Ostrovsky M A
Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Moscow, 119334, Russia.
Sechenov First Moscow State Medical University, Ministry of Healthcare of the Russian Federation, Moscow, 119992, Russia.
Dokl Biochem Biophys. 2017 Jul;475(1):283-286. doi: 10.1134/S1607672917040111. Epub 2017 Sep 2.
For the first time, it was found that the hormone melatonin exhibited antiglycation activity in vitro. It was shown that melatonin significantly slowed down the accumulation of fluorescent Schiff adducts formed as a result of BSA modification in the presence of high concentration of fructose. It was noted that, unlike the fructosylation reaction, melatonin did not affect the process of modification of BSA by methylglyoxal. We assume that melatonin is able to inhibit the development of the Maillard reaction but does not affect the process of BSA modification by reactive carbonyls.
首次发现激素褪黑素在体外具有抗糖基化活性。结果表明,在高浓度果糖存在的情况下,褪黑素显著减缓了牛血清白蛋白(BSA)修饰过程中形成的荧光席夫碱加合物的积累。值得注意的是,与果糖基化反应不同,褪黑素不影响甲基乙二醛对牛血清白蛋白的修饰过程。我们认为,褪黑素能够抑制美拉德反应的发生,但不影响活性羰基对牛血清白蛋白的修饰过程。