luteal cells isolated between days 17-20 of the menstrual cycle secreted progesterone ( p ) during short-term incubation ( 21.6 +/- 1.2 ngp/ml/5 x 10 ( 4 ) cells/3 hr , x +/- s.e. , n = 7 ) and responded to the addition of 1-100 ng hcg with a significant ( p less than 0.05 ) increase in p secretion .
C1327616
secreted
C0007634
cells