Transport from mother to fetus

Oxygen Transport from Mother to Fetus Sickle Cell Anemia... 

The compensatory relation between DHA and n-6 DPA levels is clearer in placental transport between mothers and fetuses. Crawford et al. (19) showed gradual increases in DHA level from maternal plasma, fetal cord blood, fetal liver, to fetal brain. They designated the increase as a biomagnification of DHA (19). The same pronunciation of chi for blood, milk, knowledge, wisdom, and soul was used in the ancient... 

Sterol-A -isomerase deficiency, known as Conradi-HUnermann syndrome (CDPX2), is an X-linked dominant disorder. Clinical manifestations of this disorder include skeletal abnormalities, chondrodysplasia punctata, craniofacial anomalies, cataracts, and skin abnormalities. The 7-dehydrocholesterol reductase deficiency, known as Smith-Lemli-Opitz syndrome (SLO) is an autosomal recessive disorder occurring in about 1 in 20,000 births. Clinical manifestations of affected individuals include craniofacial abnormalities, microcephaly, congenital heart disease, malformation of the limbs, psychomotor retardation, cerebral maldevelopment, and urogenital anomalies. Measurement of 7-dehydrocholesterol in amniotic fluid during second trimester or in neonatal blood specimen has been useful in the identification of the disorder. The sterol-A " -reductase deficiency causes a developmental phenotype similar to SLO syndrome and is associated with accumulation of desmosterol. The inability of de novo fetal synthesis of cholesterol combined with its inadequate transport from the mother to the fetus appears... 

The transfer of zinc across perfused placentas is slow only - 3% of maternal zinc reached the fetal compartment in 2 hours (Beer et al. 1992). The in vitro transfer of zinc between mother and fetus is bidirectional, with binding in the placenta (Beer et al. 1992). It is proposed that zinc uptake in the placenta involves a potassium/zinc transport system (Aslam and McArdle 1992). Newborns may also be exposed to zinc from their mothers by milk transfer of zinc during lactation (Rossowska and Nakamoto 1992). 

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