Aim: to study antimicrobial activity of variants of polymeric compound polyazolidinammonium modified by iodine hydrate-ions (PAAG-M), depending on the polymeric chain length and concentration of the iodine hydrate-ions against standard strains of gram-positive and gram-negative bacteria as well as microscopic fungi. Materials and methods. Minimum inhibitory concentrations of all variants of the polymeric compound for tested microbial strains have been determined by using serial dilution method. Results. High sensitivity of Eschehchia coli 113-13 and Pseudomonas aeruginosa ATCC 27853 was shown to the variants of PAAG-M with molecular weight <100 and 100-200 kD. Staphylococcus aureus 209 P was more sensitive to the variants with molecular weight 200-350 and 400-500 kD. Direct relation of sensitivity was demonstrated for all microbial strains on the increase of iodine hydrate-ions concentration in the polymeric compound. Standard strain Candida albicans 13108 was sensitive to variants of the polymer with maximum iodine hydrate-ions concentration. Conclusion. The received results allow to carry out a choice of the most effective chemotherapeutic antimicrobic preparations depending on biological properties of the activator of infectious process.
Vakaraeva M.M., Uljanov V.Yu., Nechaeva O.V., Luneva I.0., Tikhomirova E.l., Shapoval O.G., Zayarskiy D.A. Assessment of antimicrobial activity of polyazolidinammonium modified by iodine hydrate ions depending on its physical and chemical characteristics. // Saratov Journal of Medical Scientific Research, Vol. 11, Issue 3, 2015, pp. 255-257

The Purpose of the work is to research siofor influence (metformin) on the activity of the process of lipid peroxidation and antioxidant activity of blood serum at patients with metabolic syndrome. Material and Methods. 62 patients with metabolic syndrome at the age from 30 till 60 were examined and treated by siofor (1700 mg per day) during a year. The process of lipid peroxidation was studied due to the level of lipid hydroperoxide of blood serum. Antioxidant capacity was based on the antioxidant reaction in the blood serum with definite number of exogenic hydrogen dioxide (mkmole/l) with the method of ELISA. Results. Intensification of process of lipid peroxidation has been observed at patients with metabolic syndrome —the level of lipid hydroperoxide of blood serum has been 2,9 (1,94; 3,9) mkM, antioxidant activity of blood serum has been decreased — 276,4 (239,0; 379,9) mkmole/l. In 12 months of siofor intake hydroperoxide level has been decreased till 1,1 (0,8; 1,9) mkM, but antioxidant activity has been increased and amounted 320,0 (278,9; 334,3) mkmole/l. Conclusion. Siofor has been proved to be a highly effective medicine for correction of process of lipid peroxidation and for improvement of antioxidant activity of blood serum at patients with metabolic syndrome.
Chernysheva E.N., Panova T.N. Siofor influence on the process of lipid peroxidation and antioxidant status at patients with metabolic syndrome // Saratov Journal of Medical Scientific Research, Vol. 9, Issue 4, 2013, pp. 744-748

The purpose of the work is to investigate the antimicrobial activity of aqueous alcoholic extract of large stonecrop and purple stonecrop. Material and Methods. The effects of large stonecrop (Sedum maximum (L.) Hoffm.) and purple stonecrop (S. telepium L.) on aqueous solution of alcoholic extracts on Staphylococcus aureus АТС С 209R, Pseu-domonas aeruginosa ATCC 27835, Escherichia coli ATCC 25922 have been studied by the method of double serial dilution followed by seeding on solid culture media. As a result of the work the minimum inhibitory concentrations for all extracts to all the studied cultures have been found. Stonecrop extracts have bactericidal action. Conclusion. Antimicrobial activity has been determined for the extracts of both species for all researched samples of microbial strains.
Plastun V.0., Raikova S.V., Durnova N.A., Shub G.M., Komarova E.A. The study of antimicrobial activity of stonecrop extracts (Sedum maximum (L.) Hoffm., S. telephium I.) // Saratov Journal of Medical Scientific Research, Vol. 9, Issue 4, 2013, pp. 640-643

A novel in situ core@shell structure consisting of nanoparticles of Ag (Ag Nps) and AgI in agarose matrix (Ag@ AgI/agarose) has been synthesized as a hybrid, in order to have an efficient antibacterial agent for repetitive usage with no toxicity. The synthesized core@shell structure is very well characterized by XRD, UV−visible, photoluminescence, and TEM. A detailed antibacterial studies including repetitive cycles are carried out on Gram-negative Escherichia coli (E. coli) and Grampositive Staphylococcus aureus (S. aureus) bacteria in saline water, both in dark and on exposure to visible light. The hybrid could be recycled for the antibacterial activity and is nontoxic toward human cervical cancer cells (HeLa cells). The water insoluble Ag@AgI in agarose matrix forms a good coating on quartz, having good mechanical strength. EPR and TEM studies are carried out on the Ag@AgI/agarose and the bacteria, respectively, to elucidate a possible mechanism for killing of the bacteria.

Рurposе. To study antimicrobial activity of fume of the essential oil of peppermint against gram-positive and gram-negative bacteria. Materials and methods: The screening study of antimicrobial activity of solutions of essential oil by disk-diffusion method and activity of essential oil fume of own preparation and pharmaceutical form of oil according to standard strains of Staphylococcus aureus, Pseudomonas aeruginosa, Esсherichia coli and 12 clinical strains of staphylococci (6 methicillin-resistant and 6 methicillin-sensitive) has been carried out. Results: Essential oil of own preparation and pharmaceutical form showed equal antimicrobial activity against strains of staphylococci. Essential oil of own preparation has been determined to reveal higher activity against gram-negative strains. Conclusion: Received data have proved the presence of antimicrobial activity against all strains of microorganisms and mostly against staphy-lococci
Raikova S.V., Golikov A.G., Shub G.M., Durnova N.A., Shapoval O.G., Rakhmetova A.Yu. Antimicrobial activity of peppermint essential oil (Mentha piperita L.) // Saratov Journal of Medical Scientific Research, Vol. 7, Issue 4, 2011, pp. 787-790

A novel method based on ex situ dispersion of silver nanoparticles within the monomers and subsequent emulsion polymerization using water-in-sc-CO2 medium is introduced in this paper. Silver nanoparticles were synthesized by chemical reduction of silver nitrate using sodium borohydrate as a reducing agent and polydimethylsiloxane (PDMS) as a stabilizer in the water-in-sc-CO2 medium. The stable dispersion of silver nanoparticles was added slowly during the polymerization of styrene in the water-in-sc-CO2 maintaining the temperature at 70oC and pressure at 20.68MPa respectively. The silver nanoparticles encapsulated within polymer particles were characterized by UV-visible spectroscopy, XRD, TGA, SEM and TEM. The silver/polystyrene nanocomposite particles exhibited antimicrobial activity against a number of bacteria. The current work represents a simple, reproducible and universal way to prepare a variety of metal–polymer nanocomposite particles.

Copper encapsulated polystyrene nanocomposite particles were prepared through ex-situ dispersion of Cu nanoparticles into monomer droplets and subsequent polymerization using water-in-sc-CO2 at 70oC. First, colloidal dispersion of copper nanoparticles were synthesized by chemical reduction of copper chloride (CuCl2) using sodium borohydrate (NaBH4) as reducing agent. Colloidal dispersion of copper nanoparticles was added slowly during the polymerization of styrene using water-in-sc-CO2 medium at 70oC and 20.68 MPa. Cu nanoparticle encapsulated polymer particles were characterized by UV, XRD, TGA, SEM and TEM. Cu nanoparticles were uniformly distributed inside the polymer matrix during the polymerization process. This work represents a simple way to prepare a variety of metal nanoparticles encapsulated polymer particles using water-in sc-CO2 medium. The Cu/polystyrene nanocomposite particles exhibit antimicrobial activity against a number of bacteria. The current work represents a simple and universal way to prepare a variety of metal–polymer nanocomposite materials.