Gynaecology & Obstetrics General 92d211cd Anti-phospholipid Antibody syndrome is Characterized by all except A Antibodies directed against phospholipid binding proteins. B Inhibition of syncytiotrophoblast differentiation. C Central nervous system involvement is least common. D High risk of placental infarction and early-onset pre-eclampsia. High-Yield Explanation Central nervous system involvement is one of the most prominent clinical manifestations in APLAS.