Effect of Hypoxia on the Calcium and Magnesium Content, Lipid Peroxidation Level, and Ca²⁺-ATPase Activity of Syncytiotrophoblast Plasma Membranes from Placental Explants

Table 2

Lipid peroxidation (as TBARS), PMCA, and and content of syncytiotrophoblast plasma membranes from freshly prepared placental explants.

Measured parameters	BM		MVM
TBARS (nmol malondialdehyde/mg prot)	0.46 ± 0.11	(5)	0.61 ± 0.17	(5)
PMCA activity (nmol Pi/mg prot·min)	61 ± 4	(5)	110 ± 5	(5)
Membrane Ca^2+ content (µmol/g prot)	67 ± 4	(5)	75 ± 5	(8)
Membrane Mg^2+ content (µmol/g prot)	50 ± 3	(4)	55 ± 3	(8)

Values are expressed as the means ± S.E. for the indicated between parentheses.