the rapid dissociation of the febp-estradiol complex under non-equilibrium conditions probably led to over-estimation of free steroid concentration and thus to an apparent increase in the affinity of 8 s receptor for estradiol with age ( for female brain cytosol kd=9.5 x 10 ( -10 ) m at 3-5 days and 2.7 x 10 ( -10 ) m at 18-23 days ) .
C0086045
concentration
C0006104
brain