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- W3081602884 abstract "Ketoprofen is a widely used NSAID which incurs gastric mucosal damage. The high mobility group Box 1 (HMGB1) protein is a DNA-binding protein which exerts robust inflammatory actions, however, its role in ketoprofen-induced gastric damage has not been explored. Additionally, no previous studies have linked HMGB1/RAGE/NF-κB, DJ-1/Nrf2/HO-1 and PI3K/mTOR pathways in ketoprofen-induced gastropathy. The current work aimed to explore the potential of morin, a flavonoid with marked antioxidant/anti-inflammatory actions, to protect against ketoprofen-evoked gastric damage. Moreover, the underlying mechanisms, including the impact of morin on HMGB1/RAGE/NF-κB, DJ-1/Nrf2/HO-1 and PI3K/mTOR pathways were addressed. Immunoblotting and ELISA were used to examine the expression of target signals. Morin (50 mg/kg, p. o.) attenuated the severity of gastric injury via lowering of ulceration/hemorrhage and macroscopic damage scores. Meanwhile, it attenuated the histopathologic aberrations/damage scores. In the context of inflammation, morin suppressed TNF-α and myeloperoxidase levels and enhanced IL-10. Furthermore, it inhibited HMGB1/RAGE/NF-κB pathway through downregulating HMGB1, RAGE and phospho–NF–κBp65 protein expression. Morin successfully inhibited gastric mucosal oxidative stress through lowering of lipid peroxides and boosting of reduced glutathione, glutathione peroxidase and total antioxidant capacity. It also boosted DJ-1/Nrf2/HO-1 pathway via upregulating DJ-1, Nrf2 and HO-1 protein expression. Additionally, morin counteracted the apoptotic events by downregulating the proapoptotic Bax and Bax/Bcl-2 ratio and augmenting the PI3K/mTOR pathway through upregulating PI3Kp110α and phospho-mTOR protein expression. In conclusion, the current study demonstrates, for the first time, that morin shows a promise for the management of ketoprofen-induced mucosal insult through targeting of HMGB1/RAGE/NF-κB, DJ-1/Nrf2/HO-1 and PI3K/mTOR pathways." @default.
- W3081602884 created "2020-09-08" @default.
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- W3081602884 date "2020-10-01" @default.
- W3081602884 modified "2023-10-17" @default.
- W3081602884 title "Mechanistic perspective of morin protection against ketoprofen-induced gastric mucosal injury: Targeting HMGB1/RAGE/NF-κB, DJ-1/Nrf2/HO-1 and PI3K/mTOR pathways" @default.
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- W3081602884 doi "https://doi.org/10.1016/j.abb.2020.108552" @default.
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