Wyniki wyszukiwania - AGRO

1

Evaluation of the effects of antibiotics on cytotoxicity of EGFP and DsRed2 fluorescent proteins used for stable cell labeling

100%

Zakrzewska K. E., Samluk A., Pluta K. D., Pijanowska D. G.

Acta Biochimica Polonica

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2014

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tom 61

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nr 4

2

Influence of antibiotics on growth dynamics and movement ability of Salmonella rods

100%

Rzedzicki J., Bos M., Kolasa A.

Polish Journal of Veterinary Sciences

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2004

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tom 07

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nr 4

Variety of traits important in diagnostics and epidemiology of pathogenic microorganisms may change due to antibiotics. Movement ability, that is characteristic for every serovar except from Salmonella Gallinarum-Pullorum, is important to salmonellas. In own experiments using semi-fluid MSRV medium, it was found that a decrease in salmonella sensibility to selected antibiotics and chemiotherapeutics due to passage might lead to weakening of its movement ability. Movement ability of all strains (S. Enteritidis, S. Dublin, S. Typhimurium) after passage with amoxycillin, neomycin, Colistin and enrofloxacin became weakened as compared to results achieved before passage. The strongest inhibition of movement ability was most often observed in strains after passage on medium with Colistin. It seems to be associated with the action mechanism of the antibiotic. Colistin injuries cellular membranes, where flagella (active motoric organ of Salmonella) are anchored. Appearance of drug-resistance as a result of passage at the presence of antibiotics may cause variability of biochemical properties of Salmonella rods and leads to weakening of movement ability of ciliated Salmonella.

3

The effect of polyene antibiotic filipin on pig red blood cells

100%

Knopik-Skrocka A., Klafaczynska A., Bielawski J.

Cellular and Molecular Biology Letters

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2002

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tom 07

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nr Suppl.

4

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Effects of antibiotics on acquired immunity in vivo - current state of knowledge

88%

Pomorska-Mol M., Pejsak Z.

Polish Journal of Veterinary Sciences

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2012

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tom 15

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nr 3

Antibiotics are widely used in the therapy of infections. Besides the respective interactions between antibiotics and pathogens it seems that antibiotics also directly interact with the immune system. Some commonly used antibiotics are currently known to have effects on the innate immune response, as shown by in vitro, ex vivo and also in vivo animal experiments and clinical studies. Most of the experimental papers published to date, as well as most reviews, relate to how antibiotics affect the innate immune response or non-specific monocyte or lymphocyte proliferation. However the effects of antibiotics on the adaptive immune response are still not well characterized. This review of the literature considering different in vivo experiments indicate the real importance of interrelations existing between acquired immune responses and antibiotics, however, the mechanism of immunomodulatory effects of antibiotics are still poorly understood. Currently, data on the immunomodulating effects of antibiotics often remain heterogeneous, contradictory or insufficient, but most results published to date revealed the immunosuppressive effect of antibiotics on the antigen- specific immune response in vivo. In pigs as well as in poultry herds, it is not uncommon practice to add antibiotics to drinking water or feed at the time of vaccination. Information on the effects of such practices on the immune system of animals is restricted and more in vivo studies are needed to investigate the effects of antimicrobial drugs on the immune system, especially in the field conditions.

5

Improvement of rifamycins production by Amycolatopsis mediterranei in batch and fed-batch cultures

88%

El-Enshasy H. A., Beshay U. I., El-Diwany A. I., Omar H. M., El-Kholy A. G. E., El-Najar R.

Acta Microbiologica Polonica

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2003

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tom 52

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nr 3

6

Antimicrobial effect of crude extracts of Nigella sativa on multiple antibiotics-resistant bacteria

88%

Morsi N. M.

Acta Microbiologica Polonica

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2000

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tom 49

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nr 1

7

The resistance to betalactam antibiotics of lactose-positive and lactose-negative strains of Escherichia coli

88%

Janicka G., Wojciechowska D., Harenska K., Porada J., Klyszejko C.

Acta Microbiologica Polonica

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1997

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tom 46

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nr 4

8

Staphylococcus cohnii - resident of hospital environment: cell-surface features and resistance to antibiotics

88%

Szewczyk E. M., Rozalska M.

Acta Microbiologica Polonica

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2000

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tom 49

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nr 2

9

The interaction of amphotericin B and zeaxanthin in lipid membranes: A spectroscopic study

88%

Gagos M., Herec M., Gruszecki W. I.

Cellular and Molecular Biology Letters

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2002

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tom 07

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nr Suppl.

10

Antibiotic sensitivity of neustonic bacteria in Lake Jeziorak Maly

88%

Walczak M., Donderski W.

Polish Journal of Environmental Studies

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2004

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tom 13

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nr 4

This paper presents the results of research on the antibiotic sensitivity of bacteria inhabiting the surface microlayer (SM) and the subsurface water (SSW) of Lake Jeziorak Mały. It follows from the results that doxycycline, oxytetracycline and nalidixic acid are characterized by the strongest antibacterial effect. For some antibiotics, different strengths of the effect on bacteria isolated from the surface microlayer and subsurface water have been observed.

11

Prevalence of antimicrobial substances in animal feedingstuffs

88%

Przenioslo-Siwczynska M., Kwiatek K.

Bulletin of the Veterinary Institute in Puławy

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2006

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tom 50

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nr 3

12

Fluctuating membrane pores - a possible mechanism for the action of the antibiotic peptide KLA1

88%

Kim D., Dathe M., Bezrukov S., Hauss T., Dante S., Klosgen B.

Cellular and Molecular Biology Letters

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2005

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tom 10

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nr Suppl.

13

Bacterial resistance and clinical effectiveness of combinations of beta-lactam with aminoglycoside antibiotic on the example of Vetramycin and Siccovet

88%

Kania B. F., Kania K., Sutiak V.

Medycyna Weterynaryjna

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2005

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tom 61

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nr 07

14

Determination of nystatin in honey by liquid chromatography coupled with mass spectrometry

75%

Cepurnieks G., Bartkevics V., Zeile Z.

Polish Journal of Food and Nutrition Sciences

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2011

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tom 61

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nr Suppl.1

15

Opportunities and threats in the post-antibiotic era

75%

Weiner M.

Health Problems of Civilization

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2018

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tom 12

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nr 2

The following article reviews the issue of antibiotic resistance of microorganisms to meropenem in intensive care units in Ukraine. An increase in meropenem inefficiency against microorganisms in intensive care units has been observed in the last years. The data analysis suggests a significant predominance of gram-negative flora: A. baumannii, Р. aeruginosa, Antimicrobial resistance happens when microorganisms change when they are exposed to antibiotics. Then, treatment becomes ineffective and infections persist in the body, increasing the risk of spreading to other persons. The new resistance mechanisms that are emerging and spreading globally cause that the so far applied methods of treatment do not work, threatening the human ability to resist common infectious diseases, which in turn results in prolonged infections or even death. Antimicrobial resistance occurs naturally over time, usually through genetic changes. However, the misuse and overuse of antimicrobials are accelerating this process. It has become common to overuse and misuse antibiotics both in people and animals, which are often prescribed without professional oversight. Antimicrobial resistance is a complex problem that affects all of society and is driven by many interconnected factors. Single, isolated interventions have limited impact. Coordinated action is required to minimise the emergence and spread of antimicrobial resistance.

16

Antibiotic biosynthesis and secondary metabolism in high-yielding strains of Streptomyces, Penicillium chrysogenum and Acremonium chrysogenum

75%

Kurzatkowski W., Kuczerowska J.

Postępy Mikrobiologii

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2017

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tom 56

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nr 4

17

Inhibitory effect of antibiotics on the growth of heterotrophic bacteria inhabiting marine beach

75%

Perlinski P., Mudryk Z.

Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline

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2009

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tom 13 part II

The objective of the present study was to evaluate heterotrophic bacteria capable of growth in the presence of different antibiotics and their mixture in such dynamic ecosystem as marine beach. Mixture antibiotics had the strongest inhibitory effect on the growth of bacteria inhabiting sand of studied beach. Culturable bacteria were more resistant to ampicillin than to novobiocin and tetracycline. Inhibitory influence antibiotics on growth bacteria inhabiting studied beach were in the following order: mixture antibiotics > novobiocin > tetracycline > ampicillin.

18

Sensivity of Bacillus thuringiensis var. kurstaki to antibiotics and other bactericidal compounds

75%

Lipa J. J., Jarosz J.

Prace Naukowe Instytutu Ochrony Roślin

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1988

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tom 30

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nr 1-2

19

Microscopic-electron examinations of the influence of the selected antibiotics on the secretory cells of the mammary gland

75%

Cegielski M.

Folia Histochemica et Cytobiologica

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1986

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tom 24

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nr 4

20

LC determination and stability assessment of macrolide antibiotics azithromycin and spiramycin in bulk and tablet samples

75%

Mahmoudi A.

International Letters of Natural Sciences

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2015

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tom 47

Development and validation of rapid HPLC method for quantifying macrolide antibiotics azithromycin (AZI) and spiramycin (SPI) in bulk and tablet samples is described. Determination was performed on a reversed phase C18 ODB column (250×4.6 nm I.D) at ambient temperature, and employing a UV-detection set at 210 nm. The mobile phase consists of acetonitrile –2-methyl-2- propanol–hydrogenphosphate buffer, pH 6.2, with 1.8% triethylamine (32:8: up to 100, v/v/v), delivered at a flow-rate of 1.1 mL min-1. The assay is linear in concentration ranges of: 0.004–4.8 and 0.0003–1.2 mg mL−1 for azithromycin and spiramycin, respectively, with detection limit of 0.02% for SPI and 0.03% for AZI. Recovery experiments revealed recovery of 98.51–100.82%. The applicability of this method in stability assessment studies is evaluated.

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