Table 1: The effects of dibutyl phthalate (DBP) and monobutyl phthalate (MBP) on androgen production in rat immature Leydig cells.

Androstanediol (ng/106 cells/3 h)Testosterone (ng/106 cells/3 h)
ControlDBPMBPControlDBPMBP

Basal
LH
8BR-cAMP
22R-OH-cholesterol
Pregnenolone
Progesterone
Androstenedione
TestosteroneNDNDND
DihydrotestosteroneNDNDND

Mean ± SEM, = 4~12. ND = not detected. Identical letters indicate that there are no significant differences between two groups for either androstanediol or testosterone production.