The classical and alternate pathways of complement in oral contraceptive users.


Whole complement (CH50), C3, C4, the alternate pathway activity of complement (APH50) and factor B were measured in 159 women currently taking oral contraceptives and in 186 women who were not taking the pill. The mean levels of all components of the complement, except APH50, were found to be elevated in current users compared to non-users. The elevation in… (More)