after 8 and 12 wk of exposure to spp , hcg treatment increased the total amounts of t precursors ( except p at 8 wk ) in the testes , but the values attained in animals exposed to 12 wk of spp remained below those observed in hamsters kept in a long photoperiod ( 14l:10d ) , suggesting that gonadotropin replacement alone may be insufficient to normalize testicular steroidogenesis .
C0018062
hcg
C0018061
gonadotropin