Figure 5.
High folic acid intake altered folate metabolism in liver of lactating mothers and led to changes in choline metabolism. (A) Total MTHFR protein was reduced in FASD mothers (n = 5/group). (B) The ratio of the phosphorylated MTHFR isoform (less active) to the non-phosphorylated isoform was increased in the FASD group (n = 5/group). mRNA expression of (C) methionine synthase (Mtr) was reduced, (D) methionine synthase reductase (Mtrr) was increased and (E) Pemt was increased due to FASD (n = 7/group). (F) There was a trend towards lower GPC due to diet in maternal plasma, (n = 7/group, #P = 0.06). Values are means ± SEM; *P < 0.05, ***P < 0.005.