addition of progesterone at concentrations of 5-20 micrograms/ml into the culture of normal early placenta caused a decrease in the cellular levels of hcg alpha mrna and hcg beta mrna after a 24-h culture , and exhibited a decline in immunoreactive hcg and hcg alpha levels released into the media together with a decrease in immunoreactive hcg alpha and hcg beta levels in the explanted tissues after a 48-h culture .
C0086418
hcg
C0106132
hcg beta