PMID- 31258651 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20201001 IS - 1792-0981 (Print) IS - 1792-1015 (Electronic) IS - 1792-0981 (Linking) VI - 18 IP - 1 DP - 2019 Jul TI - Optimal ratio of 18alpha- and 18beta-glycyrrhizic acid for preventing alcoholic hepatitis in rats. PG - 172-178 LID - 10.3892/etm.2019.7572 [doi] AB - The glycyrrhizic acid (GA) epimers 18alpha- and 18beta-GA exert anti-inflammatory and hepatoprotective activities, which may help to protect against alcoholic liver disease, particularly alcoholic hepatitis (AH). The aim of the present study was to investigate the optimal ratio of 18alpha- and 18beta-GA for preventing AH in rats. Different groups of rats were administered seven different ratios of 18alpha- and 18beta-GA (10:0, 8:2, 6:4, 5:5, 4:6, 2:8 and 0:10; 10.83 mg/kg), vehicle control, or silymarin (22.75 mg/kg) as a positive control, followed by administration of 40% alcohol (10 ml/kg) once a day for four weeks. Subsequently, livers were isolated and routinely processed for histological examination. The serum levels of 23 cytokines and chemokines associated with AH were examined with a Bio-Plex 200 Luminex assay. It was revealed that all ratios of 18alpha- and 18beta-GA prevented alcohol-induced liver injury, as evidenced by a lesser degree of histopathological changes in the liver as compared with those in the model group. Furthermore, the levels of 15 cytokines/chemokines were significantly altered after alcohol administration, which was significantly inhibited by, pre-treatment with different proportions of 18alpha- and 18beta-GA, particularly at a ratio of 4:6, for most cytokines/chemokines associated with AH, including tumor necrosis factor (TNF)-alpha, interleukin (IL)-1beta, IL-2, IL-4, IL-5, IL-7, IL-6, monocyte chemotactic protein 1 (MCP-1), macrophage inflammatory protein (MIP)-1alpha, MIP-3alpha, macrophage- and granulocyte macrophage colony-stimulating factor, chemokine (C-X-C motif) ligand 1(GRO/KC), vascular endothelial growth factor and C-C motif chemokine ligand 5 (RANTES). Taken together, based on these results the optimal ratio of 18alpha- and 18beta-GA to prevent AH in model rats was considered to be 4:6. FAU - Huo, Xiaowei AU - Huo X AD - College of Pharmaceutical Science, Key Laboratory of Pharmaceutical Quality Control of Hebei Province, Hebei University, Baoding, Hebei 071002, P.R. China. FAU - Sun, Xiaoke AU - Sun X AD - College of Pharmaceutical Science, Key Laboratory of Pharmaceutical Quality Control of Hebei Province, Hebei University, Baoding, Hebei 071002, P.R. China. FAU - Cao, Zepeng AU - Cao Z AD - College of Pharmaceutical Science, Key Laboratory of Pharmaceutical Quality Control of Hebei Province, Hebei University, Baoding, Hebei 071002, P.R. China. FAU - Qiao, Jingzhe AU - Qiao J AD - Oncology Department, Hebei Yiling Hospital, Shijiazhuang, Hebei 050091, P.R. China. FAU - Yang, Sa AU - Yang S AD - College of Pharmaceutical Science, Key Laboratory of Pharmaceutical Quality Control of Hebei Province, Hebei University, Baoding, Hebei 071002, P.R. China. FAU - Meng, Xiangbo AU - Meng X AD - College of Pharmaceutical Science, Key Laboratory of Pharmaceutical Quality Control of Hebei Province, Hebei University, Baoding, Hebei 071002, P.R. China. FAU - Zhao, Yanyan AU - Zhao Y AD - College of Pharmaceutical Science, Key Laboratory of Pharmaceutical Quality Control of Hebei Province, Hebei University, Baoding, Hebei 071002, P.R. China. LA - eng PT - Journal Article DEP - 20190510 PL - Greece TA - Exp Ther Med JT - Experimental and therapeutic medicine JID - 101531947 PMC - PMC6566121 OTO - NOTNLM OT - 18alpha- and 18beta-glycyrrhizic acid OT - alcoholic hepatitis OT - chemokines OT - cytokines OT - optimal ratio EDAT- 2019/07/02 06:00 MHDA- 2019/07/02 06:01 PMCR- 2019/05/10 CRDT- 2019/07/02 06:00 PHST- 2018/05/08 00:00 [received] PHST- 2018/11/07 00:00 [accepted] PHST- 2019/07/02 06:00 [entrez] PHST- 2019/07/02 06:00 [pubmed] PHST- 2019/07/02 06:01 [medline] PHST- 2019/05/10 00:00 [pmc-release] AID - ETM-0-0-7572 [pii] AID - 10.3892/etm.2019.7572 [doi] PST - ppublish SO - Exp Ther Med. 2019 Jul;18(1):172-178. doi: 10.3892/etm.2019.7572. Epub 2019 May 10.