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- W2366857155 abstract "AIM:To investigate the expression of PPARγ and Nrf2/γ-GCS-h in inflammatory cells in bronchoalveolar lavage fluid(BALF) of guinea pig with bronchial asthma of acute episode,and to explore the roles of PPARγ on Nrf2/γ-GCS-h expression. METHODS: Forty adult male guinea pigs were randomly divided into 4 groups (10 guinea pigs in each group): control group (group A),asthmatic group (group B),dexamethasone treatment group (group C) and rogridone treatment group (group D). The asthmatic model was established by an ovalbumin challenge method. BALF was collected,and the total cell count and the proportion of the inflammatory cells were measured. After centrifugation,the concentrations of ROS and MDA in the clear supernatant were detected. The methods of in situ hybridization and immunohistochemistry were used for detecting the expression of PPARγ and Nrf2/γ-GCS-h at mRNA and protein levels. RESULTS: The proportion of eosinophils (EOS) in BALF in group B was significantly higher than that in groups A,C and D (P0.01). The concentrations of ROS and MDA in BALF of group B was the highest. The difference of ROS and MDA was statistically significant (all P0.05) as compared to the control. The results of immunohistochemistry and in situ hybridization indicated that the A value was the lowest in group B as compared to that in groups A,C and D (all P0.01). In group B,the positive correlations were observed between PPARγ and Nrf2/γ-GCS-h,between γ-GCS-h and Nrf2. A negative correlation between the proportion of EOS in BALF and the expression of PPARγ and Nrf2/γ-GCS-h was also observed (all P0.05). CONCLUSION: In acute asthmatic models induced by ovalbumin,the expression of PPARγ and Nrf2/γ-GCS-h is decreased,and PPARγ may up-regulate the expression of Nrf2/γ-GCS-h to inhibit the inflammatory and oxidative reactions,indicating a new way for prevention and treatment of bronchial asthma." @default.
- W2366857155 created "2016-06-24" @default.
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- W2366857155 date "2010-01-01" @default.
- W2366857155 modified "2023-09-24" @default.
- W2366857155 title "Expression of PPARγ,Nrf2 and γ-GCS-h in inflammatory cells in bronchoalveolar lavage fluid of guinea pigs with bronchial asthma" @default.
- W2366857155 hasPublicationYear "2010" @default.
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