Expression pattern of aquaporin 4 and 5 in the middle ear of guinea pigs with secretory otitis media

被引:14
|
作者
Zhang, Qian [2 ]
Liu, Changjian [2 ]
Wang, Jianqun [2 ]
Sun, Jianhe
Hu, Yingyan
Chen, Guangtao
Li, Xingqi [1 ]
机构
[1] Chinese Peoples Liberat Army Gen Hosp, Hosp 301, Inst Otolaryngol, Beijing 100853, Peoples R China
[2] Nanjing Univ, Sch Med, Drum Tower Hosp, Dept Otolaryngol Head & Neck Surg, Nanjing 210008, Peoples R China
关键词
Secretory otitis media; SOM; aquaporin; 4; 5; AQP4; AQP5; middle ear; water transport; water balance; FLUID TRANSPORT; LUNG;
D O I
10.3109/00016480902974183
中图分类号
R76 [耳鼻咽喉科学];
学科分类号
100213 ;
摘要
Conclusions: Our study suggests that aquaporins 4 and 5 (AQP4 and AQP5) in the middle ear cavity may play a vital role in the homeostasis of the tubotympanum and in the course of the accumulation of the effusion in secretory otitis media (SOM). Objective: To explore the pathological change in water homeostasis in the middle ear in SOM and to observe the expression and regulation of AQP4 and AQP5 in the middle car cavity in SOM. Materials and Methods: Reverse transcriptase polymerase chain reaction (RT-PCR) and Western blotting were used to detect AQP4 and AQP5 in the bullae of animal models of SOM and normal animals. The expression patterns of AQP4 and AQP5 in the SOM group were compared with those in the normal group. Results: RT-PCR and immunoblot analyses revealed that mRNAs encoding AQP4 and AQP5 were expressed in the middle ear membrane of the guinea pigs in both groups; AQP4 was also detected as 33 kDa protein in both groups. Quantitative analysis of RT-PCR and Western blotting revealed that expression of AQP4 and AQP5 was higher in the SOM group than in the control group.
引用
收藏
页码:68 / 74
页数:7
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