Supplements of vitamin A and of carotene during pregnancy; their effect on the levels of vitamin A and carotene in the blood of mother and of newborn infant.

摘要: IN A PREVIOUS communication 1 we reported that the concentration of vitamin in blood decreases during last trimester pregnancy. Thus, mean value plasma 70 women, six months pregnant or less, was 105.4 U.S.P. units per hundred cubic centimeters, whereas 62 patients third 91.1 centimeters. On other hand, there no significant drop carotene three In 9 12 women for whom levels were determined both early and late pregnancy, diminished; ranged from 8 to 88 units. No definite correlation could be ascertained between fall