Figure 4

Effects of melatonin (1 nM) on aromatase mRNA steady-state levels induced by prostaglandin E₂ (PGE₂). Data are expressed as a percentage of the control group (mean±s.e.m.). a, P<0.001 vs that of control; b, P<0.001 vs that of PGE₂; c, P<0.05 vs that of PGE₂; d, P<0.05 vs that of PGE₂+melatonin 1 nM.