Read by QxMD icon Read

Polish Journal of Microbiology

Bogdan Minea, Valentin Nastasa, Anna Kolecka, Magdalena Mares, Narcisa Marangoci, Irina Rosca, Mariana Pinteala, Monica Hancianu, Mihai Mares
This is the first Romanian investigation of oral candidosis in patients suffering of HIV-infection or type 1 diabetes mellitus (T1DM). Candida albicans was the dominant species in both types of isolates: n = 14 (46.7%) in T1DM, n = 60 (69.8%) in HIV. The most frequent non-albicans Candida spp. were Candida kefyr (n = 6; 20%) in T1DM and Candida dubliniensis (n = 8; 9.3%) in HIV. Resistance to fluconazole was detected only in the HIV non-albicans Candida group (n = 8; 9.3%). All isolates were susceptible to VOR...
2016: Polish Journal of Microbiology
Tatjana Vilibic-Cavlek, Ljubo Barbic, Vladimir Stevanovic, Goranka Petrovic, Gordana Mlinaric-Galinovic
A total of 52 serum samples from patients with symptoms suggestive of tick-borne encephalitis virus (TBEV) infection and positive IgM and/or IgG antibodies were tested for IgG avidity. Acute/recent TBEV infection was confirmed by low/borderline avidity index (AI) in 94.8% IgM positive/IgG positive samples, while in 5.2% high AI was found indicating persisting IgM antibodies. Majority of IgM negative/IgG positive samples (78.6%) showed high AI consistent with past TBEV infection. However, in 21.3% patients without measurable IgM antibodies current/recent infection was confirmed by AI...
2016: Polish Journal of Microbiology
Anirudha Paul, Samir Kumar Mukherjee
Nickel resistant bacterial strain Enterobacter asburiae KUNi5 was isolated and showed resistance up to 15 mM and could remove Ni optimally better at 37 degrees C and pH 7. Maximum removal was found at initial concentration of 0.5 to 2 mM, however, growth and Ni removal were affected by other heavy metals. Major amount of the metal was accumulated in the membrane fractions and certain negatively charged groups were found responsible for Ni binding. KUNi5 could also produce 1-aminocyclopropane-1-carboxylate deaminase, indole-acetic acid and siderophore...
2016: Polish Journal of Microbiology
Elzbieta Stefaniuk, Anna Baraniak, Monika Fortuna, Waleria Hryniewicz
This study was conducted to compare of the yeasts identification results obtained with two new systems using the MALDI-TOF MS technique with the ones obtained using the routine identification methods of Candida spp. in clinical microbiology laboratories. All 124 Candida spp. isolates were recovered from the routine examination of clinical specimens in microbiological laboratories and collected in the Centre of Quality Control in Microbiology in Warsaw (Poland). Our findings confirm the high agreement (98%) of fungal identification using the standard, biochemistry laboratory methods and mass spectrometry technique...
2016: Polish Journal of Microbiology
Ivette Espinosa, Michel Báez, Evelyn Lobo, Siomara Martínez, Marcelo Gottschalk
The aim of this study was to investigate the capacity of Streptococcus suis strains to form biofilms and to evaluate the antimicrobial activity of Penicillin G and N-acetylcystein (NAC) on both S. suis sessile and planktonic forms. Only non-typeable isolates of S. suis were correlated with a greater biofilm formation capacity. The MCI of Penicillin G and NAC required for inhibiting biofilm growth were higher than the required concentration for inhibiting planktonic growth. The combinations of NAC and Penicillin G showed a strong synergistic activity that inhibited biofilm formation and disrupted the pre-formed biofilm of S...
2016: Polish Journal of Microbiology
Anna Zawistowska-Rojek, Tomasz Zareba, Agnieszka Mrówka, Stefan Tyski
The aim of this study was to perform the microbiological analysis of quality of 25 probiotic products, available on the Polish market. Analysis of bacterial viability in probiotic products showed that not all of these preparations possess a suitable number of bacteria. Moreover, some of the tested probiotic products contained bacterial strains other than those declared by the manufacturer. All tested strains recovered from probiotic products were found to be resistant to metronidazole and susceptible to nitrofurantoin...
2016: Polish Journal of Microbiology
Alicja Ekiel, Małgorzata Aptekorz, Piotr Kłuciński, Dominika Smolec, Barbara Wiechuła, Jarosław Jóźwiak, Gayane Martirosian
The prevalence of urogenital mycoplasmas in men with NGU in Upper Silesia (Poland) was studied. Mycoplasmas were detected in 36.7% men (Ureaplasma parvum and Mycoplasma genitalium were found in 30% and 16.7% respectively). Urealyticum urealyticum was not detected. We suggest including M. genitalium in the diagnostic scheme for nongonococcal urethritis (NGU).
2016: Polish Journal of Microbiology
Aleksandra Banaszkiewicz, Brygida Targońska, Kinga Kowalska-Duplaga, Katarzyna Karolewska-Bochenek, Agnieszka Sieczkowska, Agnieszka Gawrońska, Urszula Grzybowska-Chlebowczyk, Elzbieta Krzesiek, Izabella Łazowska-Przeorek, Maria Kotowska, Edyta Sienkiewicz, Jarosław Walkowiak, Hanna Gregorek, Andrzej Radzikowski, Piotr Albrecht
The aim of this study was to evaluate the serotype-specific pneumococcal status of children and adolescents with inflammatory bowel disease (IBD) who were naïve to pneumococcal vaccination before administering the 13-valent pneumococcal conjugate vaccine (PCV 13). This was an open, prospective study on children and adolescents aged 5-18 years who had IBD and were naïve to pneumococcal vaccination. A single dose of PCV 13 was administered to each patient. The geometric mean concentrations (GMCs) were measured for all 13 serotypes...
2016: Polish Journal of Microbiology
Rama Sowmya, Nakkarike M Sachindra
Carotenoids are known to possess immense nutraceutical properties and microorganisms are continuously being explored as natural source for production of carotenoids. In this study, pigmented bacteria belonging to Flavobacteriaceae family were isolated using kanamycin-containing marine agar and identified using the molecular techniques and their phenotypic characteristics were studied along with their potential to produce carotenoids. Analysis of random amplification of polymorphic DNA (RAPD) banding patterns and the fragment size of the bands indicated that the 10 isolates fall under two major groups...
2016: Polish Journal of Microbiology
Yasemin Gulecal-Pektas
The microbiology of caves is an important topic for better understanding subsurface biosphere diversity. The diversity and taxonomic composition of bacterial communities associated with cave walls of the Oylat Cave was studied first time by molecular cloning based on Sanger/pyrosequencing approach. Results showed an average of 1,822 operational taxonomic units per sample. Clones analyzed from Oylat Cave were found to belong to 10 common phyla within the domain Bacteria. Proteobacteria dominated the phyla, followed by Actinobacteria, Acidobacteria and Nitrospirae...
2016: Polish Journal of Microbiology
Murat Ozdal, Ozlem Gur Ozdal, Omer Faruk Alguri
Extensive applications of organochlorine pesticides like endosulfan have led to the contamination of soil and environments. Five different bacteria were isolated from cockroaches living in pesticide contaminated environments. According to morphological, physiological, biochemical properties, and total cellular fatty acid profile by Fatty Acid Methyl Esters (FAMEs), the isolates were identified as Pseudomonas aeruginosa G1, Stenotrophomonas maltophilia G2, Bacillus atrophaeus G3, Citrobacter amolonaticus G4 and Acinetobacter lwoffii G5...
2016: Polish Journal of Microbiology
Aleksandra Rajnisz, Adam Guśpiel, Magdalena Postek, Joanna Ziemska, Anna Laskowska, Daniel Rabczenko, Jolanta Solecka
The nutritional requirements and environmental conditions for a submerged culture of Streptomyces sp. 8812 were determined. Batch and fed-batch Streptomyces sp. 8812 fermentations were conducted to obtain high activity of secondary metabolites. In the study several factors were examined for their influence on the biosynthesis of the active metabolites-7-hydroxy-6-oxo-2,3,4,6-tetrahydroisoquinoline-3-carboxy acid (C10H9NO4) and N-acetyl-3,4-dihydroxy-L-phenylalanine (C11H13NO5): changes in medium composition, pH of production medium, various growth phases of seed culture, amino acid supplementation and addition of anion exchange resin to the submerged culture...
2016: Polish Journal of Microbiology
Heba A El-Refai, Mona S Shafei, Hanan Mostafa, Abdel-Monem H El-Refai, Eman M Araby, Fawkia M El-Beih, Saadia M Easa, Sanaa K Gomaa
Gamma irradiation is used on Penicillium cyclopium in order to obtain mutant cells of high L-asparaginase productivity. Using gamma irradiation dose of 4 KGy, P. cyclopium cells yielded L-asparaginase with extracellular enzyme activity of 210.8 ± 3 U/ml, and specific activity of 752.5 ± 1.5 U/mg protein, which are 1.75 and 1.53 times, respectively, the activity of the wild strain. The enzyme was partially purified by 40-60% acetone precipitation. L-asparaginase was immobilized onto Amberlite IR-120 by ionic binding...
2016: Polish Journal of Microbiology
Katarzyna Obszańska, Izabella Kern-Zdanowicz, Aleksandra Kozińska, Katarzyna Machura, Elzbieta Stefaniuk, Waleria Hryniewicz, Izabela Sitkiewicz
Streptococcus anginosus, Streptococcus intermedius and Streptococcus constellatus form a group of related streptococcal species, namely the Streptococcus Anginosus Group (SAG). The group, previously called "milleri" had been rarely described until 1980/1990 as source of infections. Nowadays SAG bacteria are often described as pathogens causing predominantly purulent infections. The number of infections is highly underestimated, as SAG strains are often classified in the microbiology laboratory as less virulent "viridans streptococci" Epidemiological situation regarding SAG infections in Poland has been unrecognized, therefore we performed a retrospective analysis of strains isolated between 1996 and 2012...
2016: Polish Journal of Microbiology
Mohamed E El ZOWALATYl, Bpla Gyetvaii
Pseudomonas aeruginosa is a leading human pathogen that causes serious infections at various tissues and organs leading to life threatening health problems and possible deadly outcomes. Resistance patterns vary widely whether it is from hospitals or community acquired infections. Reporting resistance profiles to a certain antibiotics provide valuable information in a given setting, but may be extrapolated outside the sampling location. In the present study, P. aeruginosa isolates were screened to determine their susceptibilities against anti-pseudomonal antimicrobial agents and possible existing mechanisms of resistance were determined...
2016: Polish Journal of Microbiology
Mostafa E Eissa, Ahmed S Nouby
Neutralization method evaluation is an important first step in a disinfectant validation study program. It is also crucial in assessment of the efficiency of microbial recovery media in the presence of a residual biocidal agent. In the present study, four commercially available peroxygen/silver-based disinfectant formulae--intended to be used in a pharmaceutical facility sanitization program--were tested at two dilutions against three Gram-positive cocci and one yeast; Staphylococcus aureus (ATCC 6538), Kucoria rhizophila (ATCC 9341) and Candida albicans (ATCC 10231) and Staphylococcus capitis as an environmental monitoring (EM) isolate sample (identified by miniaturized biochemical identification system)...
2016: Polish Journal of Microbiology
Linglin Zhang, Meng Mei, Chan Yu, Wenwen Shen, Lixin Ma, Jiewang He, Li Yi
Yersinia species are bacterial pathogens that can cause plague and intestinal diseases after invading into human cells through the Three Secretion System (TTSS). The effect of pathogenesis is mediated by Yersinia outer proteins (Yop) and manifested as down-regulation of the cytokine genes expression by inhibiting nuclear factor-κ-gene binding (NF-κB) and mitogen-activated protein kinase (MAPK) pathways. In addition, its pathogenesis can also manipulate the disorder of host innate immune system and cell death such as apoptosis, pyroptosis, and autophagy...
2016: Polish Journal of Microbiology
(no author information available yet)
No abstract text is available yet for this article.
2016: Polish Journal of Microbiology
Monika Kozińska, Ewa Augustynowicz-Kopeć
In total, 1095 Mycobacterium tuberculosis clinical isolates from 282 patients with drug-resistant and 813 with drug-sensitive tuberculosis (TB) in Poland during 2007-2011 were analysed. Seventy-one (6.5%) patients were found to have strains of Beijing genotype as defined by spoligotyping. The majority of patients were Polish-born; among foreign-born a large proportion came from Chechnya and Vietnam. Analysis showed strong associations between Beijing genotype infection and MDR, pre-XDR and XDR resistance, with a considerable relative risk among new patients, suggesting that this is due to increased spread of drug-resistant strains rather than acquisition of resistance during treatment...
2015: Polish Journal of Microbiology
Monika Krajewska, Michał Załuski, Anna Zabost, Blanka Orłowska, Ewa Augustynowicz-Kopeć, Krzysztof Anusz, Marek Lipiec, Marcin Weiner, Krzysztof Szulowski
Bovine tuberculosis is an infectious disease that occurs in many species of both domestic and wild animals, as well as those held in captivity. The etiological factor is the acid resistant bacillus (Mycobacterium bovis or Mycobacterium caprae), which is characterized by the major pathogenicity among mycobacteria belonging to the Mycobacterium tuberculosis complex. The material from 8 antelopes from the zoo, suspected for tuberculosis were examined, and M. bovis strains were isolated from 6 of them. The spoligotyping method showing spoligo pattern 676763777777600...
2015: Polish Journal of Microbiology
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"