Influence of cyclopropylethyl-containing amines and amides of the isoenzyme forms of rat liver aldehyde dehydrogenase
作者:K. L. Konoplitskaya、O. V. Kislova、E. G. Vinogradova、F. F. Shcherbina、A. V. Yazlovitskii、N. M. Khrinyuk、I. A. Ral'chuk
DOI:10.1007/bf02218943
日期:1994.1
substrate was maximally decreased after 6 h, and inhibition came to 54, 86, and 92% for the indicated doses. 1-Aminocyclopropanol had a similar effect on the acetaldehyde metabolism, but a more rapid inhibition of the enzyme With high affinity for the substrate was observed. To detect antialcohol activity, rats were given compounds structurally related to pargyline (N-methyl-N-propargylbenzylamine [12])
结构包括环丙基环的化合物具有广泛的生物活性:杀虫、除草、镇痛、安定、杀菌 [7] 和抗酒精。从真菌 Coprinus atramentarius [9, 10] 中分离出的 NS-(1-羟基环丙基)L-谷氨酰胺 (coprin) 具有这种活性。其作用与许多用于治疗慢性酒精中毒的知名药物一样 [5],包括抑制肝醛脱氢酶 (AldDH, EC 1.2. 1.3) 活性和对乙醇的负面条件反射的出现. 已经对 coprin 及其推定的代谢物对肝脏 AldDH 同工型的作用进行了生化研究。提示 coprin 在生物体内代谢为氨基环丙醇,其以游离碱的形式不稳定并经历多次快速转化,形成反应性环丙酮和环丙酮水合物 [11, 14]。Coprin 在体外不抑制部分纯化的小鼠肝脏 AIdDH [13, 14]。浓度为 0.1 mM 的氨基环丙醇盐酸盐,当与酶预孵育 10 分钟时,实际上完全抑制了酶活性(残留活性为