Long-term expression of hGH in transduced mice. Mice infected with hGH-GLp65 or hGH-H-GLp65 received, 4 weeks after infection, biodegradable pellets (360 μg/pellet, released in 60 days) by transplantation containing mifepristone (+) or carrier (−) only. Mice were weighed, and blood was drawn 3, 13, 20, and 27 days after drug administration. (A) hGH levels (micrograms per milliliter). The numbers of mice for each construct is three; bars show the standard error. (B) Weight of the mice (grams).