Fig. 5
From: The in vitro modulation of steroidogenesis by inflammatory cytokines and insulin in TM3 Leydig cells

Cell viability (a), testosterone (b) and progesterone (c) results for TM3 cell exposure to various concentrations of insulin. Cell viability was significantly increased at 0.01, 0.1 and 1 ng/ml insulin. Testosterone concentrations were significantly increased for all concentrations, while progesterone concentrations significantly declined. For testosterone, ANOVA repeated measures analysis of variance was significant (P = 0.015), as was the one-way analysis of variance (P < 0.001). For progesterone, ANOVA repeated measures analysis of variance was statistically significant (P < 0.001), as was the one-way analysis of variance (P < 0.001)