Abstract
Objective
To investigate the effect of Modified Xiaochaihu Decoction (MXD, 加味小柴胡汤) on collagen degradation in rats with chronic pancreatitis (CP).
Methods
Rats were injected dibutyltin dichloride (DBTC, 7 mg/kg of body weight) into the right caudal vein to induce CP model. Thirty heallhy male Wistar rats were randomly divided into three groups by a random number table: the control, the model and the treatment groups. Rats of treatment group were administered MXD (10 g/kg of body weight) orally once daily starting from the day post-model establishment. Pancreatic tissues were harvested after 28-day feeding and fibrosis was evaluated by picro-sirius red staining. The contents of collagen type I and III were detected using enzymelinked immunosorbent assay (ELISA), the expression of matrix metalloproteinase 13 (MMP13) and tissue inhibitor of metalloproteinase 1 (TIMP1) was analyzed by Western blot and real-time polymerase chain reaction (PCR).
Results
The fibrosis scoring of pancreatic tissues, the concentrations of collagen type I and III, the expression levels of MMP13 and TIMP1 proteins and mRNA in the model group were all increased compared with the control group (P<0.05). After treatment with MXD, the fibrosis scoring of pancreatic tissues, the concentrations of collagen type I and III, the expression levels of MMP13 proteins and mRNA in the teatment group were all decreased compared with the model group (P<0.05), but there were no significant differences in the expression levels of TIMP1 proteins and mRNA (P>0.05).
Conclusions
MXD could promote collagen degradation and reverse pancreatic fibrosis in CP rats via a mechanism involve up-regulation of MMP13 expression.
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Zhang SK and Cui NQ designed this study; Zhuo YZ, Hu JG, Liu JH, Li DH and Cui LH performed the experiments; Zhang SK wrote the manuscript. All authors have read and approved the final manuscript.
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The authors declare that they have no competing interests.
Supported by the National Natural Science Foundation of China (No. 81102686)
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Zhang, Sk., Cui, Nq., Zhuo, Yz. et al. Modified Xiaochaihu Decoction (加味小柴胡汤) Promotes Collagen Degradation and Inhibits Pancreatic Fibrosis in Chronic Pancreatitis Rats. Chin. J. Integr. Med. 26, 599–603 (2020). https://doi.org/10.1007/s11655-017-2413-0
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DOI: https://doi.org/10.1007/s11655-017-2413-0