What Happens to Adipokines and Cytokine in Overweight and Obese Girls with Central Precocious Puberty When They Exercise and Stop Exercising? A randomized Controlled Trial
Abstract Background we investigate the levels of adiponectin, resistin, tumor necrosis factor-alpha (TNF-α) and signs of puberty progression after 12-weeks of combined exercise and 4-weeks of detraining. Methods Thirty overweight and obese girls (age7-9) with precocious puberty who injected Differlin were randomly divided into two groups (exercise and control). At the beginning, blood samples were obtained from all subjects and serum levels of adiponectin, resistin and TNF-α were measured. Exercise group performed 60minutes of combined (aerobic and resistance) exercises 3 times a week for 12-weeks.Control group did not receive any exercise. 48 hours after the last training session and after four weeks of detraining, blood samples were collected in the second and third stage, respectively. Blood samples were collected from the control group in both steps. BMI, cholesterol, triglyceride, signs of puberty progression (bone age, uterine lengths, ovarian volumes), luteinising hormone (LH) and follicle-stimulating hormone (FSH) were measured on all three occasions. Results In the exercise group, adiponectin significantly increased and resistin significantly decreased after 12-weeks. After 4-weeks of detraining, adiponectin significantly decreased and resistin significantly increased. TNF-α levels did not change significantly during the study. There was no significant difference in all of the factors in the control group. Throughout the 16-week study period, the rate of puberty and LH significantly decreased in both exercise and control groups but FSH and LH/FSH significantly decreased in exercise group, alone. Conclusion Combined exercise increased adiponectin and decreased resistin and rate of puberty. After 4-weeks of detraining, these effects diminished but did not disappear. Trial registration: Trial registration: ISRCTN, ISRCTN39938. Registered 24 may 2021 - Retrospectively registered, https://www.isrctn.com/trialist