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Effect of Xinhuang Pian on pancreatic apoptosis in rat with acute pancreatitis

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Author:
No author available
Journal Title:
CHINESE JOURNAL OF PANCREATOLOGY
Issue:
3
DOI:
10.3760/cma.j.issn.1674-1935.2010.03.012
Key Word:
胰腺炎;细胞凋亡;新癀片;Bcl-2;c-Myc;Pancereatitis;Apoptosis;Xinhuang Pian;Bcl-2;c-Myc

Abstract: Objective To investigate the effect of Xinhuang Pian on pancreatic apoptosis and the protein expression of Bcl-2 and c-Myc in rat with acute pancreatitis (AP). Methods 90 Wister rats were randomly divided into 3 groups, including control group, AP group and Xinhuang Pian treatment (XP) group.AP model was induced by pancreaticobiliary injection of 5% sodium taurocholate (1ml/kg weight). Rats in XP group were given Xinhuang Pian solution (480 mg/kg weight) lavage 30min after AP induction, The rats were sacrificed at 6, 12, 24 h after AP induction, and serum amylase levels were determed, pancreatic pathological change was observed; apoptosis was determined by TUNEL method. The determination of Bcl-2and c-Myc protein expression was performed by Western blot. Results 12 h after AP induction, serum amylase, pancreatic pathological scores, apoptotic indexes and the protein expression of Bcl-2 and c-Myc were (1927 ± 186) U/L, 0, 0.59 ± 0. 12, 0.406 ± 0. 112, 0. 185 ± 0. 046 in control group; (5611 ± 473) U/L,2.65 ± 0. 56, 3.80 ± 0. 91, 0. 282 ± 0.082, 0. 339 ± 0. 076 in AP group; and (4572 ± 400) U/L, 2.40 ± 0. 75,7.15 ± 0. 86, 0. 220 ± 0.068, 0. 302 ± 0. 090 in XP group. The levels of serum amylase, pancreatic pathological scores, apoptotic indexes and the protein expression of c-myc in AP and XP group were all significantly higher than those in control group (P < 0. 05), while the protein expression of Bcl-2 was significanfiy lower than that in control group ( P < 0.05 ). Compared with AP group, the levels of serum amylase, pancreatic pathological scores, protein expression of Bcl-2 were all significanfiy lower in XP group (P < 0. 05 ), but the apoptotic indexe was significantly higher (P < 0. 05 ), and there was no significat change of expression of c-Myc protein.Conclusions Xinhuang Pian may induce the pancreatic apoptosis through down-regulating Bcl-2 protein expression, and result in the alleviation of pancreatic inflammatory reaction.

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