Cyclic variations in glycoprotein synthesis in the columnar cells of the human cervix.

The rate of glycoprotein synthesis by the columnar cells of the human endocervix was measured during one cycle in 12 women by autoradiography. An increase in the rate of synthesis was associated with an increase in the plasma oestradiol concentration. A change in progesterone concentration in the blood did not seem to influence cervical glycoprotein synthesis. The ratio between the different cell types in the epithelium, basal cells, ciliated cells and mucus cells did not show cyclic variation in the cycles studied.