INVESTIGATION OF PREBIOTIC, IMMUNOSTIMULATING PROPERTIES OF FUCOSE AND ITS EFFECT ON REPRODUCTIVE FUNCTION

Aim. Investigation of the effect of fucose in the diet on the gastrointestinal microflora of experimental animals with experimental dysbiosis, the humoral factors of nonspecific immunity, as well as the degree of fucosylation of oocytes and the proportion of oocytes that can be fertilized. Materials and methods. Prebiotic properties of fucose were studied by analyzing the luminal microflora of experimental mice against the background of experimental dysbiosis. Investigation of factors of nonspecific immunity was carried out after immunization of mice according to the level of antibody formation in blood serum by the method of enzyme immunoassay. The degree of fucosylation of oocytes was assessed by the intensity of their luminescence upon microscopy of oocytes of experimental mice on a fluorescent microscope. Results. The use of fucose in all tested doses led to the restoration of the composition and quantity of the gastrointestinal microflora. For the correction of dysbiosis, the optimal concentration of fucose was 0.02% of the body weight of the experimental animals. Inclusion of fucose in a diet of experimental animals in the amount of 0.008% to the body weight provided the highest level of immune response. The degree of fucosylation of oocytes, the proportion of oocytes capable of fertilization was increased when fucose were introduced in the amount of 0.008% to the body weight of the mice. Conclusion. Bifidogenic and lactogenic activity of fucose is established. The ability of fucose to stimulate an increase in the level of antibodies in in blood serum is shown. The tendency of positive effect of fucose in the diet of mice on the degree of fucosylation of oocytes was revealed