Fig. 2

Effect of hindlimb unloading on gonadotropins and sex steroid hormones in male rats. a and b: Serum levels of kisspeptin (ng/ml) and GnRH (pg/ml) in the control and HU group (n = 10/group). c and d: represent the circulating concentrations of LH and FSH (mIU/ml) in the control and HU group (n = 10/group). e: Show serum concentrations of testosterone hormone (ng/ml) in both control and HU group (n = 10/group). **P < 0.01 and ***P < 0.001 by Student’s t-test