[MORPHOLOGICAL CHANGES IN THE LIVER OF MICE WITH ANTIPHOSPHOLIPID SYNDROME AND ADMINISTRATION OF NITRIC OXIDE SYNTHESIS MODULATORS].

The aim of the research is to study the effect of L-arginine, the precursor of nitric oxide, and aminoguanidine, the inhibitor of inducible nitric oxide synthase, on morpho-functional changes in the liver of BALB/c mice with antiphospholipid syndrome. The study was carried out on 50 female BALB/c mice modelled with antiphospholipid syndrome. L-arginine (25 mg/kg) and aminoguanidine (10 mg/kg) were used for its correction. The material for microscopic study was taken by the method of Horalsky. The liver tissue samples were stained with hematoxylin and eosin. Significant hemodynamic disorders with manifestations of thrombosis in the liver in cases of antiphospholipid syndrome followed by destructive-degenerative changes of the stoma and parenchyma have been established. Administration of L-arginine in antiphospholipid syndrome caused restoration of the lobular and beam organization of the liver. The maximum effect on the morphological state of the liver was observed in using a combination of L-arginine and aminoguanidine. The protective effect of L-arginine and aminoguanidine on the microcirculation has been proved that evidences liver function restoration in mice with antiphospholipid syndrome.