Aquaporin 1 plays an important role in myocardial edema caused by cardiopulmonary bypass surgery in goat

  • Authors:
    • Yumei Yan
    • Jianbin Huang
    • Fangbao Ding
    • Ju Mei
    • Jiaquan Zhu
    • Hao Liu
    • Kun Sun
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  • Published online on: January 3, 2013     https://doi.org/10.3892/ijmm.2013.1228
  • Pages: 637-643
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Abstract

Myocardial stunning, which is closely related to myocardial edema, is a severe complication that may occur following cardiac surgery. In this study, we examined the expression of aquaporin 1 (AQP1) and Connexin 43 (Cx43) following cardiopulmonary bypass (CPB) surgery in goats. We assessed myocardial muscle tissue water content according to changes in dry-wet weight. Our results showed that AQP1 expression and myocardial muscle tissue water content increased significantly 6 h after CPB surgery, reaching peak levels 48 h after surgery; additionally, the protein expression of Cx43 was inversely correlated with AQP1 expression. Overexpression of AQP1 during CPB surgery enhanced the degree of myocardial edema, whereas the addition of water channel protein inhibitor Hg2+ in cold crystalloid cardioplegia and knockdown of AQP1 during surgery weakened the degree of myocardial edema. These findings revealed that the severity of myocardial edema after CPB surgery is correlated with AQP1 protein expression levels, suggesting the important role played by AQP1 protein in the regulation of Cx43 in the pathological progression of myocardial edema.
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March 2013
Volume 31 Issue 3

Print ISSN: 1107-3756
Online ISSN:1791-244X

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Spandidos Publications style
Yan Y, Huang J, Ding F, Mei J, Zhu J, Liu H and Sun K: Aquaporin 1 plays an important role in myocardial edema caused by cardiopulmonary bypass surgery in goat. Int J Mol Med 31: 637-643, 2013
APA
Yan, Y., Huang, J., Ding, F., Mei, J., Zhu, J., Liu, H., & Sun, K. (2013). Aquaporin 1 plays an important role in myocardial edema caused by cardiopulmonary bypass surgery in goat. International Journal of Molecular Medicine, 31, 637-643. https://doi.org/10.3892/ijmm.2013.1228
MLA
Yan, Y., Huang, J., Ding, F., Mei, J., Zhu, J., Liu, H., Sun, K."Aquaporin 1 plays an important role in myocardial edema caused by cardiopulmonary bypass surgery in goat". International Journal of Molecular Medicine 31.3 (2013): 637-643.
Chicago
Yan, Y., Huang, J., Ding, F., Mei, J., Zhu, J., Liu, H., Sun, K."Aquaporin 1 plays an important role in myocardial edema caused by cardiopulmonary bypass surgery in goat". International Journal of Molecular Medicine 31, no. 3 (2013): 637-643. https://doi.org/10.3892/ijmm.2013.1228