A) Cocaine-sired male (n=5 rats, 5 litters) offspring showed increased expression of Crhr2 transcript compared to saline-sired male offspring (n=4 animals, 4 litters). There was no effect of sire on Crf, Crhr1, Nr3c2, or Nr3c1 expression levels. B) Cocaine-sired male offspring (n=6, 5 litters) showed increased levels of CRFR2 protein compared to saline-sired male (n=4 rats, 4 litters). Western blots for CRFR2 and GAPDH are shown on the right. Data are shown as mean ± SEM, * p<0.05.