3种阿片肽对仿刺参消化系统脂肪酶活力的影响

摘要

The effects of three types of opioid peptides on lipase activity were studied in digestive system of sea cucumber A postichopus japonicus 1h ,3h ,and 9h after the sea cucumber was injected with the opioid peptides and 2% NaCl solution .The results showed that the lipase activity was found to be inhibited by endormorphins .The lipase activity was shown decrease first ,and then enhanced with time elapsed in the sea cucumber injected withβ-endorphin .The lipase activity was decreased 1h ,3h and 9h after the injection in the sea cucumber administrated by dynorphin ,indicating that the three opioid peptides endormorphin , dynorphin andβ-endorphin were proved to inhibit the lipase activity .%分别给仿刺参体腔内注射强啡肽、β-内啡肽和内吗啡肽及2％的NaCl液，注射后1、3、9 h时取其消化器官，采用分光光度方法测定脂肪酶活力水平，以研究3种肽对刺参脂肪酶活力的影响。试验结果表明，内吗啡肽对刺参消化系统脂肪酶的活力具有抑制作用；β-内啡肽对刺参消化系统脂肪酶活力先抑制，而后随着时间的延长呈现出促进作用；强啡肽对刺参消化系统脂肪酶的活力具有抑制作用，并随着时间延长一直起抑制作用，说明阿片肽对仿刺参消化系统脂肪酶活力主要起抑制作用。