The expression profile of aquaporin 1 in rat myocardium after severe burns.

Turkish journal of medical sciences

PubMedID: 26281310

Li W, Zha L, Li Z, Huang Y, Zhou Y. The expression profile of aquaporin 1 in rat myocardium after severe burns. Turk J Med Sci. 2015;45(3):481-8.
BACKGROUND/AIM
To investigate the myocardial expression profile of aquaporin 1 (AQP1) in rats after severe burns.

MATERIALS AND METHODS
Ninety healthy male adult Wistar rats were randomly assigned to the following treatments: sham operation (control group, n = 6), immediate fluid resuscitation treatment post scalding (IF group, n = 42), and delayed fluid resuscitation treatment after scalding (DF group, n = 42). At 3, 6, 12, 24, 48, 72, and 120 h after scalding, myocardial water contents were assayed and AQP1 expressions were detected by real-time polymerase chain reaction and western blot. The AQP levels in the myocardium at 12 h after scalding were assayed by gene microarrays.

RESULTS
Scald injuries resulted in significantly synchronized increases in the myocardial water contents and the myocardial mRNA and protein expression of AQP1, with a peak at 12 h after scalding. Rats receiving delayed fluid resuscitation treatment had more severe myocardial edema and significantly higher myocardial AQP1 expressions than the rats receiving immediate fluid resuscitation treatment. The mRNAs of 6 other AQPs (AQP2, 3, 4, 6, 7, and 12b) were found to be changed in the myocardium among rats with different treatments.

CONCLUSION
AQP1 may play a functional role in the development of myocardial edema after scalding. Targeting AQP1 may provide opportunities for therapeutic intervention in myocardial edema following severe burns.