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- W4200450669 abstract "Idiopathic pulmonary fibrosis (IPF) is a chronic interstitial disease of the lung tissue that causes symptoms such as coughing and asthma. It is caused by inflammatory factors and oxidative stress. In vivo model of IPF is induced by bleomycin (BLM,) a chemotherapeutic agent. We have investigated the effect of dapsone on bleomycin-induced IPF in adult male Wistar rats due to its anti-inflammatory and anti-oxidative stress effects. The animals were randomly divided into 5 groups (Control, BLM, BLM + dapsone 1, BLM + Dapsone 3, BLM + Dapsone 10). The control group received normal water and food. In the fibrosis group, bleomycin (BLM) (5 mg/kg) was used to induce pulmonary fibrosis by intratracheal administration. Three groups of animals were treated daily with single doses of 1, 3, and 10 mg dapsone by intraperitoneal injection 1 h after receiving BLM for 2 weeks. The activity of antioxidant enzymes superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx), and oxidative stress markers such as myeloperoxidase (MPO), malondialdehyde (MDA), protein carbonyl (PC) and nitrite were measured to evaluate bleomycin and therapeutic effect of dapsone. The histological assays of lung tissues were done by Hematoxylin-eosin (H & E) and Masson's trichrome staining. BLM reduced the activity of oxidative enzymes and increased the oxidative stress markers, while treatment with dapsone has reversed the results. In addition, the total number of cells as inflammatory cells such as neutrophils and eosinophils were examined. It has been indicated BLM increased these cells, and dapsone decreased them. The results of H & E and Masson's trichrome staining showed that dapsone reduced inflammation and alveolar wall thickness and BLM-induced pulmonary fibrosis. According to the findings of this study, dapsone seems to have therapeutic effects on pulmonary fibrosis through its anti-inflammatory and anti-oxidative stress properties and reduction of the toxic effects of bleomycin." @default.
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- W4200450669 date "2022-02-01" @default.
- W4200450669 modified "2023-10-06" @default.
- W4200450669 title "Protective effect of dapsone against bleomycin-induced lung fibrosis in rat" @default.
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- W4200450669 doi "https://doi.org/10.1016/j.yexmp.2021.104737" @default.
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