A, representative Western blots for SNAT1, SNAT2 and SNAT4 in TPM isolated from mice placenta at E18.5. B, bar graph summarizing the Western blot data from control (C, n= 6) and fADN (A, n= 6) infused groups. After normalization to β-actin, the mean density of control samples was assigned an arbitrary value of 1. Individual C and A density values were expressed relative to this mean. Values are given as means + SEM. *P < 0.05 versus control; Student's unpaired t test.