摘要
目的:研究小鼠在受到脂多糖(LPS)刺激时,褪黑素的抗氧化作用,并探讨其可能机制。方法:用脂多糖建立氧化应激模型,检测血清、小肠、肝脏和脾组织中的ROS含量,肝脏、脾组织中的谷胱甘肽过氧化物酶(GSH-PX)、超氧化物歧化酶(SOD)、丙二醛(MDA)的变化。结果:在LPS刺激后的4h和16h,褪黑素均能降低血清、小肠、肝脏、脾组织中的ROS含量,提升肝脏和脾组织中的GSH-PX、SOD活性,降低MDA含量。结论:褪黑素有助于增强氧化应激小鼠的抗氧化能力,降低组织中NO含量与NO合成酶活性,增加了SOD、GSH-PX等抗氧化酶的活性,保护机体免受氧化损伤。
Objective. To study the effects of melatonin on antioxidation and its mechanism on mice under the stimulation of lipopolysaccharide (LPS).Method:To determine changes on reactive oxygenspecial (ROS), superoxidedismutase(SOD), glutathioneperoxidase ( GSH - PX), malondialdehyde (MDA) by melatonin under lipopolysaccharide(LPS) induced oxidative response.Results: serum, small intestine, hepatic and spleen ROS were decreased,Hepatic and spleen, SOD, GSH-PX were increased and MDA were decreased with Melatonin supplement 4h and 16h after LPS stimulation.Conclusion: Melatonin can help to increase anti-oxidation, protect mice from injury under LPS stimulation.Melatonin increase SOD and GSH-PX activity,as a result, protect the body from oxidative damage.
出处
《食品工业科技》
CAS
CSCD
北大核心
2010年第3期347-350,共4页
Science and Technology of Food Industry
关键词
褪黑素
LPS
ROS
GSH—PX
SOD
MDA
melatonin ( MT )
lipopolysaccharide ( LPS )
reactiveoxygenspecial ( ROS )
glutathioneperoxidase (GSH-PX)
superoxidedismutase(SOD)
malondialdehyde(MDA).