Effect of Rifaximin on Hepatic Fibrosis in Bile Duct-ligated Rat Model
의약학 > 내과학
SeungKakShin ( 신승각 ) , OhSangKwon ( 권오상 ) , JongJoonLee ( 이종준 ) , YeonHoPark ( 박연호 ) , CheolSooChoi ( 최철수 ) , SungHwanJeong ( 정성환 ) , DuckJooChoi ( 최덕주 ) , YunSooKim ( 김연수 ) , JuHyunKim ( 김주현 )
대한소화기학회지 2017년, 제70권 제5호, 239~246쪽(총8쪽)
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    Background/Aims: The translocation of bacteria and their lipopolysaccharides from the gut can promote fibrosis in cirrhotic patients. The aim of this study was to investigate the effects of rifaximin on hepatic fibrosis in a bile duct-ligated rat model. Methods: The bile duct ligation (BDL) was carried out for eight days (acute injury model: sham-operated rats [G1], BDL rats [G2], and BDL rats treated with rifaximin [G3]) or 22 days (chronic injury model: sham-operated rats [G4], BDL rats [G5], and BDL rats treated with rifaximin [G6]). Rifaximin (50 mg/kg/day) was administered daily via gavage after BDL. Liver function, serum tumor necrosis factor-alpha (TNF-α), and hepatic hydroxyproline levels were measured. Moreover, a histological analysis of fibrosis contents was performed using sirius red stain. Results: In the acute injury model, the liver function and TNF-α level were not improved after the rifaximin treatment. The hydroxyproline levels (μg/g liver tissue) in G1, G2, and G3 were 236.4±103.1, 444.8±114.4, and 312.5±131.6, respectively; and fibrosis contents (%) were 0.22±0.04, 1.64±0.53, and 1.66±0.44, respectively. The rifaximin treatment did not ameliorate acute BDL-induced fibrosis. In the chronic injury model, the hydroxyproline levels in G4, G5, and G6 were 311.5±72.9, 1,110.3±357.9, and 944.3±209.3, respectively; and fibrosis contents (%) were 0.19±0.03, 5.04±0.18, and 4.42±0.68, respectively (G5 vs. G6, p=0.059). The rifaximin treatment marginally ameliorated chronic BDL-induced fibrosis. Conclusions: Rifaximin did not reduce inflammation and fibrosis in bile duct-ligated rat model. (Korean J Gastroenterol 2017;70:239-246)
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