[STRUCTURAL-FUNCTIONAL STATUS OF THE LYMPH TISSUE OF MICE LYMPHATIC NODES FOLLOWING THE 30-DAY FLIGHT ONBOARD SPACECRAFT BION-M1].

The article reports the results of studying the lymph tissue of mesenteric and cervical lymphatic nodes in C57BL/6N mice after the 30-day orbital flight onboard biosatellite Bion-M1. Histological and morphometric investigations revealed changes in the ratio of the nodes structural-functional zones and microstructure. Reductions in reticular cells, plasmocytes, macrophages and blasts in the nodes point to degradation of both humoral and cellular immunity.