[Mineralocorticoids in cervical mucous and female blood serum: levels in the preovulatory phase of the menstrual cycle].

Preovulatory cervical mucous of normal cycles was checked in 8 women for the presence of deoxycorticosterone (DOC), corticosterone and aldosterone. Cervical mucous DOC varied from lower to higher levels, and corticosterone concentration was several fold lower than in the blood serum. No aldosternone was detected in the cervical mucous. High cervical mucous DOC levels may indicate its synthesis by glandular cells of the cervix. Low corticosterone cervical mucous levels may indicate its transfer from the blood.