“Morphine and nalorphine (10-2-l0-3 M) significantly stimulated the incorporation of P132 into lysophosphatidylinositol, phosphatidylinositol, phosphatidylserine, phosphatidylethanolamine , phosphatidic acid and diphosphoinositide about 26 to 299% and inhibited the uptake of P132 into phosphatidylcholine 46 to 59%.”