Expression and modulation of aquaporin 5 in hyperoxia induced lung injury

OBJECTIVE: To explore the expression and the modulation of aquaporin 5(AQP5) in hyperoxia induced lung injury

Bibliographische Detailangaben
Veröffentlicht in:Zhongguo wei zhong bing ji jiu yi xue = Chinese critical care medicine = Zhongguo weizhongbing jijiuyixue. - 1998. - 18(2006), 8 vom: 04. Aug., Seite 462-5
1. Verfasser: Tan, Li-ping (VerfasserIn)
Weitere Verfasser: Xu, Feng, Kuang, Feng-wu
Format: Aufsatz
Sprache:Chinese
Veröffentlicht: 2006
Zugriff auf das übergeordnete Werk:Zhongguo wei zhong bing ji jiu yi xue = Chinese critical care medicine = Zhongguo weizhongbing jijiuyixue
Schlagworte:English Abstract Journal Article Research Support, Non-U.S. Gov't Aqp5 protein, rat Aquaporin 5 RNA, Messenger Dexamethasone 7S5I7G3JQL
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245 1 0 |a Expression and modulation of aquaporin 5 in hyperoxia induced lung injury 
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500 |a published: Print 
500 |a Citation Status MEDLINE 
520 |a OBJECTIVE: To explore the expression and the modulation of aquaporin 5(AQP5) in hyperoxia induced lung injury 
520 |a METHODS: Sixty four Wistar rats of 2 weeks old, were randomly assigned to following groups (n=8): air group, hyperoxia 3, 7, 14 days groups, air + dexamethasone (Dex), hyperoxia 3, 7, 14 days + Dex groups. The rats were kept in oxygen chamber at normal pressure (O(2)> or =95%) in hyperoxia groups, and in normal pressure air (O(2)=21%) in room-air group, and the rats in Dex groups were injected with Dex (5 mg.kg(-1).d(-1)) intraperitoneally for 3 consecutive days in room-air or hyperoxia exposure. The expression of AQP5 mRNA level and the location were detected by reverse transcription-polymerase chain reaction and immunohistochemistry respectively 
520 |a RESULTS: AQP5 was strongly labeled in alveolar epithelial type I cells, and was also expressed in the secretory epithelium plasma membrane in the airway. The location of AQP5 in hyperoxia groups was not changed, but the expression of AQP5 mRNA had a notable gradual decline when the time of hyperoxia exposure was prolonged, compared to control group (all P<0.05). There was no difference in AQP5 mRNA level between hyperoxia groups and hyperoxia + Dex groups at different time points (all P<0.05) 
520 |a CONCLUSION: The significant decrease in AQP5 may be an important factor of pulmonary edema formation in hyperoxia-induced lung injury. Dex does not have effect on modulating the AQP5 expression in acute lung injury 
650 4 |a English Abstract 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
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650 7 |a Aquaporin 5  |2 NLM 
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650 7 |a Dexamethasone  |2 NLM 
650 7 |a 7S5I7G3JQL  |2 NLM 
700 1 |a Xu, Feng  |e verfasserin  |4 aut 
700 1 |a Kuang, Feng-wu  |e verfasserin  |4 aut 
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