فهرست نشریات علمی دسترسی آزاد ایران

Background: Diabetes mellitus (types 1 and 2) leads to secondary complications such as neuropathy, which reduce a patient’s qualityof life. Apelin and its receptor, APJ, have been shown to have antinociceptive effects and to decrease blood glucose levels.Objectives: The present experimental study was conducted in Iran and investigated the role of apelin, which is used to manage type1 diabetes mellitus, during exercise training.Materials and Methods: Male Wistar rats (n = 36) were assigned by simple random allocation to six groups (n = 6): non-diabetic(ND), diabetic (D), sedentary non-diabetic (SND), sedentary diabetic (SD), exercise non-diabetic (END), and exercise diabetic (ED).Diabetes was induced by a single subcutaneous injection of streptozotocin (50 mg/kg). Exercise training consisted of treadmillrunning 60 minutes/day5 days/week for 10 weeks. The tail-flick test was used to assess the thermal pain threshold, and an apelinenzyme immunoassay kit was utilized to assess plasma apelin levels.Results: Plasma apelin level was higher (0.3 vs. 0.1, P < 0.0001) and the tail-flick latency was lower (2.2 vs. 3.8, P < 0.0001) in theD group than in the ND group. After the training program, plasma apelin levels decreased in the exercise groups, and the tail-flicklatency increased in the ED group. No correlation was found between apelin blood concentrations and tail-flick latency followingthe training program in the ED group.Conclusions: These findings suggest that apelin does not play any significant role in regulating the pain threshold in type 1 diabetesmellitus during exercise training.