Relationship between matrix metalloproteinases-9 and zonula occludens-1 expression and brain edema in rats with hepatic en-cephalopathy
- VernacularTitle:肝性脑病大鼠血脑屏障 MMP－9和 ZO－1的表达与脑水肿的关系
- Author:
Lihua HU
;
Peng CHEN
;
Xiaoli WANG
;
Jiye ZHANG
;
Yingjuan CHANG
;
Peiyi ZHANG
- Publication Type:Journal Article
- Keywords:
Hepatic encephalopathy;
Blood brain barrier;
Brain edema;
Matrix metalloproteinases-9;
Zonula occludens-1
- From:
Journal of Chinese Physician
2014;(z2):7-9
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the effect of MMP-9 and ZO-1 expressions on the brain edema in rats with hepatic encepha -lopathy.Methods Ninety rats were randomly divided into two groups .In one group, rats were intraperitoneal of D -galactosamine (400mg/kg) with lipopolysaccharide(100μg/kg) to induce hepatic encephalopathy , and then observe the symptom.12 hours later, ammonia, the evans blue(EB)content, the brain water content and the MMP -9 mRNA and the ZO-1 mRNA in the brain tissue was as-sessed by real-time Q-PCR.Results Two hours later the rats in hepatic encephalopathy groups begin to appear the symptom .12 hours later, the ammonia, the EB content, the brain water content and the MMP -9 mRNA content of the hepatic encephalopathy groups was increased significantly[(279.53 ±9.78)μmol /L vs (33.85 ±1.50)μmol/L, (6.71 ±0.50)μg/g vs (3.96 ±0.48)μg/g, (82.14 ±0.30)% vs (76.07 ±0.39)% and 1.4255 ±0.1131 vs 0.8298 ±0.0537, P <0.01],but the ZO-1 mRNA content was decreased (1.0795 ±0.0534 vs 1.4576 ±0.0654, P <0.01).Conclusions Blood brain barrier permeability enhancement and brain edema in hepatic encephalopathy rats, MMP-9 mRNA increase and ZO-1 mRNA decrease may play an important role .
