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Original Research

Silibinin Effect on Fas/FasL, HMGB1, and CD45 Expressions in a Rat Model Subjected to Liver Ischemia-Reperfusion Injury

, MD, PhD, , PhD, , DVM, PhD, , MD, PhD, , PhD, , MSc, , MD, MSc, , MD, MSc, , MD, PhD & , MD, PhD show all
Pages 491-502 | Received 05 Jun 2017, Accepted 24 Jul 2017, Published online: 27 Sep 2017
 

ABSTRACT

Purpose: We investigated the hepatoprotective effect of Silibinin (SLB) to ischemia-reperfusion (I/R) rat model, by evaluating the histological expression of the tissue markers Fas/FasL, HMGB-1 and CD45, and SLB pharmacokinetics. Methods: Seventy-three Wistar-type male rats were randomized in 11 groups: Sham control group (open-close laparotomy); four I/R control groups (laparotomy, 45 min vascular occlusion, reperfusion, euthanasia after 60, 120, 180, and 240 min); four SLB (Si) groups (laparotomy, 45 min vascular occlusion, IV administration of SLB, reperfusion, euthanasia after 60, 120, 180, and 240 min); two SLB pharmacokinetics (PK) groups (IV administration of SLB, euthanasia after 45 and 240 min). Results: Fas/FasL increased with reperfusion time in I/R control groups and decreased in the Si groups, reaching, respectively, the highest and lowest values at 240 min of reperfusion (p <.0001). HMGB1 and CD45 increased with time in the I/R control groups up to 240 min and decreased in the Si groups, approaching zero expression after 180 and 60 min, respectively. Pharmacokinetic data showed higher liver accumulation and slower plasma elimination of SLB in ischemic animals. Conclusions: The hepatoprotective effect of SLB was demonstrated through the reduction of the expression of Fas/FasL, HMGB-1 and CD45 in liver tissue under I/R conditions, and in the pharmacokinetic study. The results document the efficacy of silibinin in the protection of the liver, and are particularly encouraging for its use in hepatic surgery.

AUTHOR CONTRIBUTIONS

Study design: AKT, GV, NK, CS; Acquisition of data: EF, AB, EC, AKT, GV, ZK; Analysis and interpretation: ML, AKT, MP, CA; Manuscript drafted by: AKT, GV; Critical revision: AKT, GV, ML, NK, CS; Statistical advice: CA; Study supervision: CS.

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