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内毒素血症幼鼠小肠黏膜组织学及血浆、肠组织二胺氧化酶、血浆D-乳酸的变化 被引量:18

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摘要 目的观察内毒素血症幼鼠小肠黏膜组织学及血浆、肠组织二胺氧化酶(DAO)、血浆D-乳酸的变化。方法 18日龄wistar大鼠48只,随机分为内毒素血症组(n=40),正常对照组(n=8),内毒素血症组根据注射脂多糖(LPS)后取标本时间分为1.5h、6h、24h、72h、7d共5个亚组,各组于各时间点分别取血浆及小肠匀浆,测定血浆DAO活性及D-乳酸、小肠匀浆DAO值。结果 (1)内毒素血症组呈小肠黏膜损伤的组织学改变;(2)内毒素血症1.5h、6h、24h、72h亚组血浆DAO较正常对照组增高(P<0.05);而7d亚组较正常对照组偏低;(3)内毒素血症各亚组小肠组织DAO低于正常对照组DAO;(4)内毒素血症组血浆D-乳酸较正常组增高(P<0.05);(5)血浆DAO与小肠组织DAO含量呈负相关(r=-0.392,P=0.006)。结论腹腔注射LPS可以引起小肠上皮细胞受损,紧密连接破坏,肠通透性增加,提示临床上可以通过测定血浆DAO及D-乳酸来及时了解肠道屏障功能。
出处 《中华临床医师杂志(电子版)》 CAS 2012年第6期177-179,共3页 Chinese Journal of Clinicians(Electronic Edition)
基金 广西自然科学基金(桂科自0640086)
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参考文献9

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