The synthesis and evaluation of gastroprotective effect of different tryptamine derivatives. Tryptamine derivatives have been synthesized by formation of amide or ester with some known anti oxidant molecules. These derivatives show excellent antioxidant property in vitro. Among all the derivatives the compound SEGA (3a), that was prepared by the combination of serotonin with gallic acid shows the greater antioxidant property than the other synthesized compounds both in vivo and in vitro. SEGA(3a) shows the gastroprotective effect against NSAIDs (indomethacin or diclofenac)-induced gastropathy in dose dependent manner and also accelerates the healing from injury. It prevents the NSAIDs-induced mitochondrial oxidative stress in vivo. This derivative prevents NSAID-induced mitochondrial oxidative stress-mediated apoptosis in vivo by preventing the activation of caspase 9 and caspase-3 and restores NSAIDs-mediated collapse of mitochondroial transmembrane potential and dehydrogenase activity. SEGA (3a) plays an important role as an iron chelator as well as intra mitochondrial ROS scavenger. Thus, SEGA (3a) is a potent antioxidant antiapototic molecule, which efficiently prevents NSAID-induced gastropathy and stress or alcohol-mediated gastric damage.
不同
色胺衍
生物的合成和胃保护效应的评价。通过与一些已知的抗氧化分子形成酰胺或酯的方式合成了
色胺衍
生物。这些衍
生物在体外表现出优异的抗氧化性能。在所有衍
生物中,通过将
血清素与
没食子酸结合制备的化合物
SEGA(3a)在体内外表现出比其他合成的化合物更强的抗氧化性能。
SEGA(3a)表现出剂量依赖性的对N
SAIDs(消炎药indomethacin或diclofenac)诱导的胃病的胃保护作用,并加速伤口愈合。它可以预防N
SAIDs诱发的线粒体氧化应激。这种衍
生物通过防止caspa
SE 9和caspa
SE-3的激活,并恢复N
SAIDs介导的线粒体跨膜电位和脱氢酶活性的崩塌,从而预防N
SAIDs诱导的线粒体氧化应激介导的凋亡。
SEGA(3a)在
铁螯合剂以及线粒体内ROS清除剂方面发挥重要作用。因此,
SEGA(3a)是一种有效预防N
SAIDs诱导的胃病和应激或
酒精诱导的胃损伤的强效抗氧化和抗凋亡分子。