Fig. 3. Serum testosterone levels. Hemolysis prevented the separation of serum in one sample from the control group and three samples each from the STZ and STZ/4HR groups. These samples weren’t included in the testosterone analysis. The control group displayed higher testosterone levels than the 4HR group, but this difference lacked statistical significance (P > 0.05). On the other hand, a marked difference was evident between the STZ group and the STZ/4HR group (**P < 0.01). STZ, streptozotocin; 4HR, 4-hexylresorcinol.
