[Changes in the migration and adhesive activity of polymorphonuclear leukocytes as 1 of the characteristics of Gram-negative bacteria isolated from patients with suppurative lung destruction].

The influence of Gram-negative bacteria on the migratory and adhesive activity of polymorphonuclear leukocytes (PMNL) in the peripheral blood of clinically normal donors has been studied by the specially developed method with the use of Boyden chambers. Pseudomonas and enterobacteria have been found to produce complex and various effects on the above-mentioned properties of PMNL. When incubated in fresh serum, Gram-negative bacteria are capable of enhancing the migratory activity of PMNL, this property being least pronounced in P.

[Immunobiologic study of the role of heterogenetic antigens of uropathogenic strains of E. coli].

Analysis of 140 strains of E. coli isolated from patients with pyelonephritis has demonstrated heterogeneous antigens (in 44.3% of cases) related to ABO antigens against human red blood cells.