Roepke J L, Kirksey A
Am J Clin Nutr. 1979 Nov;32(11):2257-64. doi: 10.1093/ajcn/32.11.2257.
Vitamin B6 nutriture was assessed during pregnancy and lactation to determine whether previous use of oral contraceptive agents (OCA) resulted in reduced reserves of the vitamin. Vitamin B6 levels were measured in maternal serum and urine at 5 and 7 months gestation and at delivery, in cord serum and in milk at 3 and 14 days postpartum. Long-term use of OCA (greater than 30 months) resulted in low levels of vitamin B6 in maternal serum at 5 months gestation and at delivery and in milk compared with values for short-term (1 to 30 months) and nonusers of OCA. Levels of vitamin B6 were also lower in the cord serum of long-term users of OCA as compared to nonusers.
在孕期和哺乳期评估了维生素B6营养状况，以确定先前使用口服避孕药（OCA）是否会导致该维生素储备减少。在妊娠5个月和7个月时、分娩时、产后3天和14天测定了母血和母尿、脐血及乳汁中的维生素B6水平。与短期（1至30个月）使用OCA者及未使用OCA者相比，长期使用OCA（超过30个月）导致妊娠5个月时、分娩时母血及乳汁中维生素B6水平较低。与未使用OCA者相比，长期使用OCA者的脐血中维生素B6水平也较低。
