Do mitochondrial proteases act on STARD3 to activate progesterone synthesis in human syncytiotrophoblast?
Metalloproteases from human placental mitochondria are involved in steroidogenesis through the proteolytic activation of STARD3. 1,10-Phenanthroline inhibits STARD3 proteolytic cleavage. The 28-kDa protein and the amino terminal truncated-STARD3 stimulate steroidogenesis in a comparable rate, suggesting that both proteins share similar properties, probably the START domain that is involved in cholesterol binding.
Mothers reported more stress compared with fathers, above all for PRA. A parental intervention was effective in reducing stress-role alteration in mothers, but not fathers. Parental interventions should take into account that help for fathers could be different from help for mothers.