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Biomedical subjects

Z G Starobinets

Publications and source records attributed to Z G Starobinets.

14 recordsLinked to original sources

[Antibacterial activity of some trichomonacidal agents].

In vitro and in vivo antibacterial activity of metronidazole preparations was studied in comparison to that of nitazole in various dosage forms: solution, aerosol, suspension and suppository. The metronidazole preparations inhibited only anaerobic organisms and were efficient in experimental infections caused by them. Unlike the metronidazole preparations, the dosage forms of nitazole inhibited the growth not only of anaerobic organisms but also that of staphylococci and had a therapeutic effect on infections caused by these organisms.

Aerosols↗

[Experimental and clinical study of nitazol as an antibacterial drug in the complex treatment of peritonitis].

Antibacterial properties of the Soviet drug nitazol which is a derivative of imidazole were studied. It was shown that nitazol in a dose of 4-8 micrograms/ml was highly active against gram-negative nonsporulating anaerobes, gram-positive anaerobic cocci and spore-forming Clostridia spp. Unlike metronidazole, it was efficient against both standard and clinical strains of facultative anaerobes such as E. coli, S. aureus and Klebsiella spp. isolated from patients with peritonitis and being poly-resistant to antibiotics. It was found in vitro that the antibacterial effect of nitazol was higher when it was used in combination with some antibiotics. It was demonstrated on experimental models of peritonitis caused by Staphylococcus spp. and E. coli in mice that nitazol used alone or in combination with gentamicin had a favourable effect on the animal survival and lifespan. The combination of nitazol with gentamicin was applied in the combined treatment of appendicular peritonitis in 80 children and its high therapeutic efficacy was stated. Nitazol is useful as an antibacterial drug in the combined treatment of children with purulent peritonitis.

Animals↗

[Antibacterial activity of nitazole and its use in combined treatment of appendicular peritonitis in children].

The experimental-clinical investigations have demonstrated the high effectiveness of the native preparation Nitazole against the Gram-negative non-spore-forming anaerobic bacteria, Gram-positive anaerobic cocci, spore-forming Clostridium, certain facultative anaerobes. This permits to recommend it for the use as an antibacterial preparation for the treatment of peritonitis in children.

Anti-Bacterial Agents↗

[The effect of dexamethoxin on the integrity of cytoplasmic membrane in gram-positive and gram-negative microorganisms].

Decamethoxin is shown to be able to increase membrane permeability of Pseudomonas aeruginosa, Escherichia coli and Micrococcus lysodeikticus, that is confirmed by a loss of compounds with the absorption maximum at 260 nm by cells. Parallel with this the number of viable individuals has fallen and activity of dehydrogenases has been inhibited. The aspartate and alanine aminotransferase activity was not inhibited by decamethoxin and even increased. Decamethoxin lysed the protoplasts of the tested microorganisms. At high decamethoxin concentrations (over 500 micrograms/ml for P. aeruginosa and over 200 mu/ml--for E. coli) the outflow of components from the cells of gram-negative bacteria ceased, that may be associated with the coagulation changes in the cytoplasm. A loss of the low-molecular components by M. lysodeikticus cells and lysis of protoplasts proceeded less intensely than the same processes in the gram-negative microorganisms, that is explained by a less resistance of M. lysodeikticus to decamethoxin and earlier coagulation of the cytoplasm preventing lysis.

Anti-Bacterial Agents↗