[Immunoenzyme analysis in the determination of antibodies to main classes of cell phospholipids in human blood].

A modified ELISA is proposed for detecting antiphospholipid antibodies of the IgM and IgG isotypes, including antibodies to cardiolipin, phosphatidylserine, phosphatidylethanolamine, phosphatidylinositol, phosphatidylcholine, and sphingomyelin in human blood serum. The degree of phospholipid saturation, its phase (lamellar or hexagonal), purity, oxidation index of the phospholipid preparation, and conditions of solid phase treatment are important factors providing a sufficiently high sensitivity and reliability of measurements. The clinical value of the method was demonstrated in examinations of 70 patients with habitual abortions. The method can be used in studies of the spectrum of antiphospholipid antibodies in different diseases involving an increase of their blood serum level.