Laboratório de Química Aplicada a Bioativos, Centro Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas, Pelotas, RS, Brasil.
Laboratório de Neuroquímica, Inflamação e Câncer, Centro de Ciências Químicas Farmacêuticas e de Alimentos, Universidade Federal de Pelotas, Campus Universitário s/n, Capão do Leão, RS, CEP 96010-900, Brazil.
Neurochem Res. 2021 Jun;46(6):1554-1566. doi: 10.1007/s11064-021-03295-0. Epub 2021 Mar 23.
Cholinergic system dysfunction, oxidative damage, and alterations in ion pump activity have been associated with memory loss and cognitive deficits in Alzheimer's disease. 1,3-thiazolidin-4-ones have emerged as a class of compounds with potential therapeutic effects due to their potent anticholinesterase activity. Accordingly, this study investigated the effect of the 2-(4-(methylthio)phenyl)-3-(3-(piperidin-1-yl)propyl)thiazolidin-4-one (DS12) compound on memory, cholinergic and oxidative stress parameters, ion pump activity, and serum biochemical markers in a scopolamine-induced memory deficit model. Male Wistar rats were divided into four groups: I-Control; II-Scopolamine; III-DS12 (5 mg/kg) + scopolamine; and IV-DS12 (10 mg/kg) + scopolamine. The animals from groups III and IV received DS12 diluted in canola oil and administered for 7 days by gavage. On the last day of treatment, scopolamine (1 mg/kg) was administered intraperitoneally (i.p.) 30 min after training in an inhibitory avoidance apparatus. Twenty-four hours after scopolamine administration, the animals were subjected to an inhibitory avoidance test and were thereafter euthanized. Scopolamine induced memory deficits, increased acetylcholinesterase activity and oxidative damage, and decreased Na/K-ATPase activity in cerebral cortex and hippocampus. Pretreatment with DS12 prevented these brain alterations. Scopolamine also induced an increase in acetylcholinesterase activity in lymphocytes and whereas butyrylcholinesterase in serum and treatment with DS12 prevented these changes. In animals treated with DS12, no changes were observed in renal and hepatic parameters when compared to the control group. In conclusion, DS12 emerged as an important multitarget compound capable of preventing neurochemical changes associated with memory deficits.
胆碱能系统功能障碍、氧化损伤和离子泵活性改变与阿尔茨海默病的记忆丧失和认知功能障碍有关。1,3-噻唑烷-4-酮类化合物因其具有很强的乙酰胆碱酯酶抑制活性而成为一类具有潜在治疗作用的化合物。因此,本研究探讨了 2-(4-(甲硫基)苯基)-3-(3-(哌啶-1-基)丙基)噻唑烷-4-酮(DS12)化合物对东莨菪碱诱导的记忆缺陷模型中记忆、胆碱能和氧化应激参数、离子泵活性以及血清生化标志物的影响。雄性 Wistar 大鼠分为四组:I-对照组;II-东莨菪碱组;III-DS12(5mg/kg)+东莨菪碱组;IV-DS12(10mg/kg)+东莨菪碱组。第 III 组和第 IV 组的动物接受 DS12 稀释于菜籽油中,并通过灌胃给药 7 天。在治疗的最后一天,东莨菪碱(1mg/kg)在抑制性回避装置训练后 30 分钟通过腹腔内(i.p.)给药。东莨菪碱给药 24 小时后,动物进行抑制性回避测试,然后处死。东莨菪碱诱导记忆障碍,增加大脑皮质和海马乙酰胆碱酯酶活性和氧化损伤,降低 Na/K-ATP 酶活性。DS12 预处理可防止这些脑改变。东莨菪碱还诱导淋巴细胞中乙酰胆碱酯酶活性增加,而血清中丁酰胆碱酯酶活性增加,DS12 治疗可防止这些变化。与对照组相比,DS12 治疗的动物肾和肝参数无变化。综上所述,DS12 是一种重要的多靶点化合物,可预防与记忆障碍相关的神经化学变化。