摘要
采用硫代巴比妥酸(TBA)显色法测定油酸致急性肺损伤后血浆及肺组织脂质过氧化物(LPO)的代谢产物丙二醛(MDA)的含量,用薄层层析及无机磷定量法测定肺表面活性物质(PS)的主要功能成分—卵磷脂(PC)和总磷脂(TPL)含量。观察到油酸致肺损伤后血浆和肺组织匀浆MDA含量明显增加;肺组织匀浆PC及TPL含量明显减少。损伤前给予645—2.可减少LPO的生成,且能防止PS的减少。结果提示PS减少与脂质成分自身变化有关,可能是LPO增加致PS合成减少。654—2能抑制这一过程。
In the study we determined the content of malondialdehyde(MDA) , which is the metabolite of lipid peroxide(LPO) , in plasm and lung homogenate by thiobarbituric acid(TBA) colorimetry, and the content of phosphatidyl-choline(PC), which is the major functional composition of pulmonary surfactant (PS).and total phospholipid (TPL) by thin-layer chromatogra-phy and inorganic phosphorus quantitative analysis in rabbits with lung injury induced by oleic acid. The results showed that the MDA level was
increased in plasm and lung homogenate; PC and TPL were decreased in lung homogenate. Administrating of 654-2 before and after (0. 5 h)lung injury could both inhibit the production LPO and prevent the decrease of PS. The findings suggest that the decrease of PS may be due to the increase of LPO and that G54-2 could modify the process.
出处
《中国药理学通报》
CAS
CSCD
北大核心
1993年第1期54-57,共4页
Chinese Pharmacological Bulletin
关键词
过氧化脂质
山莨菪碱
油酸
pulmonary surfactant
lipid peroxide
oleic acid
