Aim: We aimed to investigate the protective effect of caffeic acid phenethyl ester (CAPE) on acetylsalicylic acid (ASA)-induced lung damage in rats in the present study.
Methods: A total of 40 rats were randomly divided into five groups, with eight rats in each group-group 1: control, not receiving any medication; group 2: ASA (50 mg/kg/day); group 3: ASA (50 mg/kg/day) plus CAPE (20 μg/kg/day); group 4: ASA (100 mg/kg/day); and group 5: ASA (100 mg/kg/day) plus CAPE (20 μg/kg/day). ASA and CAPE were given via orogastric gavage for 5 days. The total oxidant status (TOS), total antioxidant capacity (TAC), oxidant stress index (OSI), and paraoxonase-1 (PON-1) activity of the blood samples and lung tissues were determined. Histopathological examinations of the lung tissues were performed by using light microscopic methods.
Results: CAPE treatment significantly increased antioxidant PON-1 level both in the lung tissue and plasma (p < .05). Plasma antioxidant marker (TAC, PON-1) levels significantly increased and oxidant marker (TOS, OSI) levels significantly decreased in CAPE-treated rats (groups 3,5) compared to ASA given no-CAPE groups (group 2,4) (p < .05). Treatment with CAPE improved pulmonary interstitial inflammation and eosinophil accumulation due to ASA histopathologically.
Conclusion: Eosinophil-rich inflammation and oxidative stress play important roles in ASA-induced lung toxicity, and CAPE may protect against ASA-induced lung toxicity by reduction of oxidative damage and inflammation in rats.
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| http://dx.doi.org/10.3109/08941939.2016.1149641 | DOI Listing |
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