Figure 1

Serum FSH and LH levels. (A) FSH and (B) LH levels before (white bars) and 24 hours after a single injection of recombinant FSH (450 IU sc) (black bars) in 10 women with PCOS and 8 normally cycling women (control). The FSH injection was given to the women with PCOS twice, i.e. first 15-20 days after a spontaneous period (before progesterone treatment) and second after a 20-days treatment with progesterone per os (after progesterone treatment). The FSH injection was given to the normally cycling women on cycle day 3. After the FSH injection, serum FSH levels increased and serum LH levels decreased significantly. A. *p < 0.05, comparison with corresponding values before the FSH injection. B. a,b,c,d,e,f,g p < 0.05.