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Jun 4, 2022Keywords:
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Main Article Content
Pulegone ameliorates inflammation and oxidative stress in L-arginine-induced acute pancreatitis in mice by regulating the activation of p38 MAPK pathway
Abstract
Purpose: To evaluate the effects of pulegone (PLG) on inflammation and oxidative stress in L-arginineinduced acute pancreatitis (AP), and determine its molecular mechanism.
Methods: Hematoxylin-Eosin (H & E) staining assay were performed, and histopathological score, blood glucose concentration, and serum amylase level were evaluated in order to assess the effects of PLG on pancreatic injury in L-arginine-induced AP mice. Enzyme linked immunosorbent assay (ELISA) was conducted to assess the levels of myeloperoxidase (MPO), malonaldehyde (MDA) and inflammatory factors (IL-6, TNF-α and IL-1β) in L-arginine-induced AP mice. Serum lactate dehydrogenase (LDH) and relative levels of ROS generation in L-arginine-induced AP mice were determined using an LDH kit and immunofluorescence assay, respectively. The effect of pulegone (PLG) on the activation of p38 MAPK pathway in L-arginine-induced AP mice was evaluated by Western blot.
Results: Significant pancreatic tissue injury occurred in L-arginine-induced AP mice was revealed. PLG alleviated the pathological injury of pancreatitis, and decreased the blood glucose concentration and serum amylase level in L-arginine-induced AP mice. In addition, PLG inhibited oxidative stress and inflammatory responses, and was enabled to inhibit the activation of p38 MAPK pathway in L-arginineinduced AP mice. Furthermore, PLG exhibited protective effect against the development of pancreatic injury in L-arginine-induced AP mice.
Conclusion: PLG ameliorates L-arginine-induced inflammation and oxidative stress in AP mice in vivo by inhibiting p38 MAPK pathway, and therefore, is a potential therapeutic agent for the management of acute pancreatitis.
