Blood levels of proteinase inhibitors in pre-eclampsia.

The blood levels of alpha 2-macroglobulin, alpha 1-antitrypsin, CT inactivator, antithrombin III and alpha 2-antiplasmin were measured in 18 primigravidae with moderate or severe pre-eclampsia and in 18 gestation-matched primigravidae with uncomplicated pregnancy. The mean levels of the proteinase inhibitors did not differ between the pre-eclampsia and uncomplicated pregnancy groups.