[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.

[Microflora and its antibiotic sensitivity in chronic pharyngitis treated by cryotherapy].

Antibiotic sensitivity of the pharynx mucosa microflora in patients with chronic pharyngitis subjected to cryotherapy was studied. Examination of 36 patients showed that cryotherapy at a temperature of -1950 markedly decreased the number of the grown colonies, their qualitative characteristics being changed. In 10 days both the quantitative and the qualitative characteristics of the flora completely reduced.

[Comparative study of mycoplasmae and stable L-forms of bacteria].

A comparative study of mycoplasmae and L-form bacteria was carried out. Both of them were well passaged on a special nutrient medium with the addition of thallium acetate, i.e.

[Isolation of Mycoplasma from the urine of patients with chronic pyelonephritis].

Bacteriological analysis of urine of 150 patients with chronic pyelonephritis was performed. As a result mycoplasma was isolated from urine of 25 patients. Mycoplasma and Coli bacteria or Proteus were isolated simultaneously from urine of 10 patients.

[L-forms of bacteria in the urine of patients with chronic pyelonephritis].

The authors present the data concerning the study of 200 patients suffering from chronic pyelonephritis; in 28 of these L-forms of bacteria were revealed in the urine. Of 46 L-cultures isolated from these patients 13 reversed into bacterial forms, 8 failed to reverse and were referred to the stable L-forms; the rest 25 L-cultures perished during the 8th--10th passage. This led to a supposition that the relapses and exacerbations of the infectious process in pyelonephritis were associated with the change of the L-forms into bacterial ones, and that the persistence of the L-forms in the kidney tissue promoted the maintenance of the chronic process.