Maternal liver TfR and hepcidin expression. Maternal liver TfR (A) and hepcidin (B) mRNA expression in Rowett Hooded Lister (RHL) and Wistar rats exposed to a control or low iron diet prior to and during pregnancy. Data are presented as means ± s.e.m. for n = 8–11 per group. Expression is normalised to cDNA fluorescence at 80°C.