Experimental maternal and neonatal folate status relationships in nonhuman primates

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Abstract
The influence of maternal dietary folic acid intake on folate status was studied in Cebus albifrons monkeys by feeding 10 or 250 micrograms/100 kcal dietary folic acid during pregnancy and 4 wk postpartum. Maternal, infant, and nonpregnant hematologic indices; blood and liver folate concentrations; and urinary formiminoglutamic acid excretion all varied with dietary folate intake and pregnancy status as did milk folate concentration in lactating dams. Maternal folate status, determined by plasma, red blood cell, and milk folate concentrations, as well as urinary formiminoglutamic acid excretion, all were correlated significantly with liver folate concentrations in neonates (r = 0.740, r = 0.919, r = 0.936, and r = −0.851, respectively). Results in these primates showed that neonatal folate status was related significantly to the dietary folate intake and folate status of the mother during pregnancy and lactation.