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Article

Effect of glucocorticoids on aquaporin-1 in guinea pigs with otitis media with effusion

  • Authors:
    • Chenjie Yu
    • Xinyan Cui
    • Feng Chen
    • Jun Yang
    • Xiaoyun Qian
    • Xia Gao
  • View Affiliations / Copyright

    Affiliations: Department of Otolaryngology, Head and Neck Surgery, Drum Tower Hospital, Nanjing University School of Medicine, Nanjing, Jiangsu 210008, P.R. China, Department of Otolaryngology, The First Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China, Department of Pathology, Drum Tower Hospital, Nanjing University School of Medicine, Nanjing, Jiangsu 210008, P.R. China
  • Pages: 1589-1592
    |
    Published online on: April 2, 2013
       https://doi.org/10.3892/etm.2013.1036
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Abstract

The aim of this study was to explore the pathological changes in water homeostasis and the effects of glucocorticoids on aquaporin‑1 (AQP1) in guinea pigs with otitis media with effusion (OME). Immunohistochemistry and western blotting were used to detect AQP1 in the bullae of OME models, which were induced by reversible Eustachian tube (ET) obstruction. Animals in the dexamethasone (dexa) group received dexa via intraperitoneal injection for 7 days and the pathological changes and expression patterns of AQP1 were compared with those in the OME group. In this study, 22 guinea pigs exhibited effusion 3-7 days after surgery, of which two were sacrificed. Six (60%) animals in the OME group and 9 (90%) in the dexa group presented no sign of effusion on postoperative day 14. AQP1 was detected as an 28‑kDa protein in the two groups. Immunohistochemical analysis revealed that AQP1 was expressed in subepithelial fibroblasts and capillary endothelial cells. Western blot analysis revealed that the levels of AQP1 protein were markedly higher in the dexa group compared with the OME group. In conclusion, our study emphasized the significance of AQP1 in the pathophysiology of OME and suggests that glucocorticoids may regulate water homeostasis via an AQP1-regulated pathway.
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Copy and paste a formatted citation
Spandidos Publications style
Yu C, Cui X, Chen F, Yang J, Qian X and Gao X: Effect of glucocorticoids on aquaporin-1 in guinea pigs with otitis media with effusion. Exp Ther Med 5: 1589-1592, 2013.
APA
Yu, C., Cui, X., Chen, F., Yang, J., Qian, X., & Gao, X. (2013). Effect of glucocorticoids on aquaporin-1 in guinea pigs with otitis media with effusion. Experimental and Therapeutic Medicine, 5, 1589-1592. https://doi.org/10.3892/etm.2013.1036
MLA
Yu, C., Cui, X., Chen, F., Yang, J., Qian, X., Gao, X."Effect of glucocorticoids on aquaporin-1 in guinea pigs with otitis media with effusion". Experimental and Therapeutic Medicine 5.6 (2013): 1589-1592.
Chicago
Yu, C., Cui, X., Chen, F., Yang, J., Qian, X., Gao, X."Effect of glucocorticoids on aquaporin-1 in guinea pigs with otitis media with effusion". Experimental and Therapeutic Medicine 5, no. 6 (2013): 1589-1592. https://doi.org/10.3892/etm.2013.1036
Copy and paste a formatted citation
x
Spandidos Publications style
Yu C, Cui X, Chen F, Yang J, Qian X and Gao X: Effect of glucocorticoids on aquaporin-1 in guinea pigs with otitis media with effusion. Exp Ther Med 5: 1589-1592, 2013.
APA
Yu, C., Cui, X., Chen, F., Yang, J., Qian, X., & Gao, X. (2013). Effect of glucocorticoids on aquaporin-1 in guinea pigs with otitis media with effusion. Experimental and Therapeutic Medicine, 5, 1589-1592. https://doi.org/10.3892/etm.2013.1036
MLA
Yu, C., Cui, X., Chen, F., Yang, J., Qian, X., Gao, X."Effect of glucocorticoids on aquaporin-1 in guinea pigs with otitis media with effusion". Experimental and Therapeutic Medicine 5.6 (2013): 1589-1592.
Chicago
Yu, C., Cui, X., Chen, F., Yang, J., Qian, X., Gao, X."Effect of glucocorticoids on aquaporin-1 in guinea pigs with otitis media with effusion". Experimental and Therapeutic Medicine 5, no. 6 (2013): 1589-1592. https://doi.org/10.3892/etm.2013.1036
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