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Effect of prenatal testosterone exposure on IRβ protein expression. IR-β levels were determined in gastrocnemius muscle from intact and orchiectomized control and prenatally TP-exposed males. Representative Western blots for IR-β (top) and blot density obtained from densitometric scanning of IR-β normalized to GAPDH (bottom) are shown. Values are presented as the mean ± SEM (n = 5–8 animals in each group). Different superscript letters indicate significant differences (P < 0.05).
