Figure 7.

Representative immunoblots (A) and blot density analysis (B) of peptide/histidine transporter 1 (PhT1), peptide transporter 1 (PepT1), and peptide transporter 2 (PepT2) in the placenta of mice at day 17. In the control group, pregnant mice were fed a diet containing free Met. In the 35% Met group, pregnant mice were fed a Met-deficient diet with intraperitoneally injection of 35% of the Met contained in the control diet. The 25% Met-Met group was treated as described for the 35% Met group, except that 25% of the injected Met was replaced with methionyl-methionine (Met-Met). The data are expressed as the mean ± SEM; three placentas were selected randomly from each group, n = 3. The different letters indicate significant differences, p < 0.05.