Evaluation of N-acetylcysteine treatment in acute pancreatitis-induced lung injury

作者：Yubero Sara; Ramudo Laura; Manso Manuel A; Collia Francisco; De Dios Isabel^*

来源：Inflammation Research, 2012, 61(7): 699-705.

DOI：10.1007/s00011-012-0462-6

• Acute pancreatitis
• Adhesion molecules
• Chemokines
• Lung
• N-Acetylcysteine

Pulmonary complications are frequent during acute pancreatitis (AP). We investigate the effects of N-acetylcysteine (NAC) on lung injury in mild and severe AP. %26lt;br%26gt;Mild and severe AP was induced in rats by bile-pancreatic duct obstruction (BPDO) and infusion of 3.5 % sodium taurocholate (NaTc) into the bile-pancreatic duct, respectively. NAC (50 mg/kg) was given 1 h before and 1 h after AP. %26lt;br%26gt;Amylase activity was measured in plasma. Lungs were harvested for mRNA expression analysis of monocyte chemoattractant protein-1 (MCP-1), cytokine-induced neutrophil chemoattractant (CINC), P-selectin and intercellular adhesion molecule-1 (ICAM-1), myeloperoxidase (MPO) activity and histological examination. %26lt;br%26gt;Hyperamylasemia was reduced by NAC in both AP models. NAC down-regulated MCP-1, CINC and P-selectin in BPDO- but not in NaTc-induced AP. Pulmonary insults did not vary in mild AP and were exacerbated in severe AP by NAC treatment. NAC reduced lung MPO activity in mild but not in severe AP. %26lt;br%26gt;Although NAC treatment down-regulated inflammatory mediators in lungs during AP it did not prevent leukocyte infiltration, which could be responsible for maintaining the lung injury. As a result, NAC aggravated the lung damage in severe AP and failed to exert beneficial effects in the mild disease model.

• 出版日期2012-7