Maternal and Fetal Nutrient Concentrations

The earliest applications of techniques for chronic catheterization of fetal blood vessels included simultaneous measurement of maternal and fetal blood concentrations of gases, nutrients, and metabolites under different nutritional and physiological conditions. It soon became apparent that for some important nutrients, such as glucose, fetal concentration closely parallels maternal concentration with a gradient favoring continuous transfer from dam to fetus in sheep, cattle, horses, and pigs[4] (Fig. 2). For other vital nutrients, such as amino acids and calcium, relations between maternal and fetal concentrations are much less apparent. For calcium and many amino acids, fetal concentration is persistently greater than maternal concentration. Under normal conditions, maternal and fetal blood oxygen tensions and concentrations and acid base status are tightly regulated, and a strong, positive maternal fetal oxygen gradient is maintained. However, maternal hypoxemia induced naturally by altitude or artificially in hypobaric chambers is associated with development of fetal hypoxemia and acidemia.[2]

101 Everyday Tips for Losing 10 Pounds

101 Everyday Tips for Losing 10 Pounds

Studies show obesity may soon overtake tobacco as the leading cause of death in world. Who Else Could Use 101 'Everyday' Ways to Lose 10 Pounds or more and Keep it Off! You've been putting it off too long. Hey, everyone needs to lose weight from time to time. You're no different!

Get My Free Ebook


Post a comment