Core body temperature of animals was maintained at 36.5 to 37.5℃ during and after the study procedures. The rats were treated with gentamicin (40 mg/kg, intramuscular injection; Caspian Tamin Company, Iran) twice a day for the first 3 days as prophylaxis against urinary tract infection. The urinary bladders were pressed three times a day by the time that bladder function returned to normal. The rats were also injected subcutaneously with 25 ml/kg lactated Ringer’s solution (Caspian Tamin Company, Iran) for 2 days after SCI as once a day (Edalat et al., 2013).