in order to test whether the decrease in serum tsh was due to an intrapituitary increase in t3 , hril-1 was injected in hypothyroid rats : the fall of serum tsh was not prevented and it fell in 5 h from 14.05 +/- 0.56 to 9.66 +/- 0.98 ng/ml ( 31 % , p less than 0.01 , n = 14 ) .
C0086418
hril-1
C0021753
hril-1