Human Reproduction, Vol. 8, No. 8, pp. 1168-1172, 1993
© 1993 European Society of Human Reproduction and Embryology
research-article |
Physiology: Autonomic nervous modulation and effects of a prostaglandin synthase inhibitor on human cervical secretion
Department of Obstetrics and Gynaecology, Karolinska Hospital S-104 01 Stockholm, Sweden
Correspondence: 1To whom correspondence should be addressed
Modulation of cervical secretion at ovulation time was studied in 10 women with regular menstruations. In an in-vivo model with repeated collection of mucus samples during three 90-min periods, the amounts of mucus in a control cycle and in three experimental cycles were compared. Drugs interacting with the autonomic nervous system and a prostaglandin synthase inhibitor were administered at time of ovulation. The cholinomimetic drug carbacholine significantly increased cervical secretion, while the anticholinergic drug butylscopolamine markedly inhibited this secretion. A long-lasting decrease in secretion was seen after administration of the prostaglandin synthase inhibitor diclofenac. Beside regulation of cervical secretion by the ovarian hormones, these results suggest an autonomic nervous modulation of cervical secretion, and in addition an impact on cervical secretion by a prostaglandin synthase inhibitor. The effects on fertility regulation in the female are discussed.
Key words: autonomic nerves/cervical secretion/cervix uteri/cholinergic/prostaglandin H synthase inhibitors