Figure 4. MT and follicular development [74, 75]. Abbreviations: MT, melatonin; R, melatonin receptor; ROS, reactive oxygen species; CAT, catalase; SOD, superoxide dismutase; GPx, glutathione peroxidase; FSH, follicle stimulating hormone; LH, luteinizing hormone; MIH, maturation-inducing hormone; P, progestational hormone; A, androstenedione; NAT, N-acetyltransferase; and HOMT, hydroxyindole-O-methyltransferase.