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Impact of maternal growth on placental system A transporter mRNA expression. A: SLC38A1. B: SLC38A2. C: SLC38A4. Growing (n = 13) and nongrowing (n = 13) teenagers had significantly lower placental SLC38A1 mRNA expression than adults (n = 10). Growing teenagers had significantly lower placental SLC38A2 mRNA expression than adults. TBP, TATA box binding protein. Box and whisker plots. Kruskal-Wallis test with Dunn's post hoc test: *P < 0.05, **P < 0.01.
