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Mini Review | 26-August-2016

The Role of Staphylococcus aureus in Secondary Infections in Patients with Atopic Dermatitis (AD)

Staphylococcus aureus colonizes the mucous membrane of the nasal vestibule of a significant number of healthy people. These microorgan­isms are opportunistic pathogens, that in favorable conditions, may cause infections of various course, location or manifestation. Second­ary infections emerge in cases when other risk factors contribute to such a change. One of the diseases during which S. aureus changes its saprophytic character to a pathogenic one is atopic dermatitis (AD), an

Aneta Buda, Jacek Międzobrodzki

Polish Journal of Microbiology, Volume 65 , ISSUE 3, 253–259

Original Paper | 27-September-2017

Polish Physicians’ Attitudes Towards Antibiotic Prescription and Antimicrobial Resistance

physicians (91%) considered that antimicrobial resistance is a major problem at present. The majority of physicians indicated the reasons for prescribing the antibiotic are related to health factors, such as optimal recovery (best effectiveness, least side effects) (80%), latest therapeutic guidelines (70%) and microbiological/epidemiological factors (63%). Knowledge of the National Recommendations for the management of Community-Acquired Respiratory Tract Infections 2010(NR-CA-RTI) developed within

Beata Mazińska, Waleria Hryniewicz

Polish Journal of Microbiology, Volume 66 , ISSUE 3, 309–319

Original Paper | 30-June-2018

The Usefulness of Chromogenic Media for Qualitative and Semi-Quantitative Diagnostic of Urinary Tract Infections


Polish Journal of Microbiology, Volume 67 , ISSUE 2, 213–218

Original Paper | 09-March-2018

Comparison of Methods Used for the Diagnosis of Epstein-Barr Virus Infections in Children

The accurate diagnosis of Epstein-Barr virus (EBV) infections is important, as many other infectious agents or diseases can cause similar symptoms. In this study, sera of pediatric patients who were suspected to have an EBV infection, were sent to Eskisehir Osmangazi University Faculty of Medicine, Department of Clinical Microbiology, and investigated by IFA, ELISA, immunoblotting and Real-time PCR. The performances of these tests were compared with IFA. The rates of agreement between ELISA and

Nilgun Kasifoglu, Semra Oz, Ener Cagri Dinleyici, Tercan Us, Ozcan Bor, Gul Durmaz, Yurdanur Akgun

Polish Journal of Microbiology, Volume 67 , ISSUE 1, 81–88

Short Communication | 07-June-2016

Characterization of Staphylococcal Cassette Chromosome mec (SCCmec) in Methicillin-Resistant Staphylococcus epidermidis Strains Isolated from Biomaterial-Associated Infections and their Antibiotic Resistance Patterns

, none of these strains showed resistance to tigecycline and only four strains were resistant to rifampin i.e. antibiotics which are very efficient in treating biofilm-associated infections.

Ewa Szczuka, Karolina Bosacka, Adam Kaznowski

Polish Journal of Microbiology, Volume 65 , ISSUE 2, 215–217

Original Paper | 30-June-2018

Isolation of Bacteriocin-producing Staphylococcus spp. Strains from Human Skin Wounds, Soft Tissue Infections and Bovine Mastitis

A collection of 206 Staphylococcus spp. isolates was investigated for their ability to produce compounds exhibiting antistaphylococcal activity. This group included Staphylococcus aureus, Staphylococcus epidermidis, Staphylococcus xylosus strains recovered from bovine mastitis (n = 158) and human skin wounds and soft tissues infections (n = 48). Production of substances with antimicrobial activity was observed in six strains. Five of them were recovered from bovine mastitis, and one was


Polish Journal of Microbiology, Volume 67 , ISSUE 2, –

Original Paper | 28-June-2017

Trends of Bloodstream Infections in a University Greek Hospital during a Three-Year Period: Incidence of Multidrug-Resistant Bacteria and Seasonality in Gram-negative Predominance

The aim of the study was to assess the epidemiology, the incidence of multidrug-resistant bacteria and bloodstream infections’ (BSIs) seasonality in a university hospital. This retrospective study was carried out in the University General Hospital of Patras, Greece, during 2011–13 y. Blood cultures from patients with clinical presentation suggestive of bloodstream infection were performed by the BacT/ALERT System. Isolates were identified by Vitek 2 Advanced Expert System

Fevronia Kolonitsiou, Matthaios Papadimitriou-Olivgeris, Anastasia Spiliopoulou, Vasiliki Stamouli, Vasileios Papakostas, Eleni Apostolopoulou, Christos Panagiotopoulos, Markos Marangos, Evangelos D. Anastassiou, Myrto Christofidou, Iris Spiliopoulou

Polish Journal of Microbiology, Volume 66 , ISSUE 2, 171–180

Mini Review | 30-March-2017

Application of Metagenomic Analyses in Dentistry as a Novel Strategy Enabling Complex Insight into Microbial Diversity of the Oral Cavity

The composition of the oral microbiome in healthy individuals is complex and dynamic, and depends on many factors, such as anatomi­cal location in the oral cavity, diet, oral hygiene habits or host immune responses. It is estimated at present that worldwide about 2 billion people suffer from diseases of the oral cavity, mainly periodontal disease and dental caries. Importantly, the oral microflora involved in local infections may spread and cause systemic, even life-threatening infections

Aleksandra Burczyńska, Łukasz Dziewit, Przemysław Decewicz, Izabela Strużycka, Marta Wróblewska

Polish Journal of Microbiology, Volume 66 , ISSUE 1, 9–15

Article | 16-April-2018

Should We Rethink Toxoplasmosis?

Historically, acute infections by Toxoplasma gondii (T. gondii) were not considered problematic in children and adults. Congenital infections caused concern due to effects on the developing foetus. Unless severe, symptoms such as chorioretinitis often only appeared later with periodic reactivation of chronic infection. Current thinking about the role of T. gondii has changed substantially. Researchers now believe that acute infections in children and adults, and their periodic reactivation once

Michael G. Gleeson, B. App. Sc., (Phty), M. Spec. Ed.

International Journal of Orientation & Mobility, Volume 1 , ISSUE 1, 73–78

Original Paper | 31-August-2018

3D/4D contrast-enhanced urosonography (ceVUS) in children – is it superior to the 2D technique?

Magdalena Maria Woźniak, Paweł Osemlak, Aikaterini Ntoulia, Halina Borzęcka, Beata Bieniaś, Agnieszka Brodzisz, Grzegorz Jędrzejewski, Anna Drelich-Zbroja, Maciej Powerski, Maciej Pech, Andrzej Paweł Wieczorek

Journal of Ultrasonography, Volume 18 , ISSUE 73, 120–125

Original Paper | 15-March-2016

Streptococcus anginosus (milleri) Group Strains Isolated in Poland (1996–2012) and their Antibiotic Resistance Patterns

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

Katarzyna Obszańska, Izabella Kern-Zdanowicz, Aleksandra Kozińska, Katarzyna Machura, Elżbieta Stefaniuk, Waleria Hryniewicz, Izabela Sitkiewicz

Polish Journal of Microbiology, Volume 65 , ISSUE 1, 33–41

Original Paper | 10-December-2018

Emergence of High-level Gentamicin Resistance among Enterococci Clinical Isolates from Burn Patients in South-west of Iran: Vancomycin Still Working

Enterococcus faecalis and Enterococcus faecium are among the main agents associated with nosocomial infections with high mortality in immunocompromised patients. Antibiotic resistance, especially against gentamicin and vancomycin among Enterococci, is a risk factor that could increase the morbidity and mortality rate. 179 Enterococci isolates from burn patients were included in this study. Antibiotic susceptibility testing was done using the disk diffusion test and minimum inhibitory


Polish Journal of Microbiology, Volume 67 , ISSUE 4, 401–406

Original Paper | 15-March-2016

Effectiveness of Antipseudomonal Antibiotics and Mechanisms of Multidrug Resistance in Pseudomonas aeruginosa

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

Mohamed E. El Zowalaty, Béla Gyetvai

Polish Journal of Microbiology, Volume 65 , ISSUE 1, 23–32

Original Paper | 10-December-2018

Primary and Secondary Bacteremia Caused by Proteus spp.: Epidemiology, Strains Susceptibility and Biofilm Formation

Abstract Proteus spp. is an etiological factor of urinary tract and bloodstream infections. The aim of this study was the retrospective analysis of susceptibility of Proteus spp. strains isolated from bloodstream infections (BSIs) as well as similarity evaluation of the strains isolated from different clinical samples. Proteus spp. strains were isolated in 2009–2017 from hospital patients. Identification was based on the colony’s morphology and biochemical or MALDI-TOF MS analyzes. The


Polish Journal of Microbiology, Volume 67 , ISSUE 4, 471–478

Short Communication | 28-June-2017

Early KPC-Producing Klebsiella pneumoniae Bacteremia among Intensive Care Unit Patients Non-Colonized upon Admission

Among 140 patients colonized by KPC-producing Klebsiella pneumoniae (KPC-Kp) between fourth and seventh day of Intensive Care Unit stay, 24 developed bacteraemia immediately after colonization. Colistin-resistance of the colonizing isolate was the factor significantly associated with early KPC-Kp bacteraemia (P < 0.001; OR 6.6, 95% CI 2.4–18.4), a worrisome finding since infections by colistin-resistant isolates is associated with increased mortality due to limited remaining

Matthaios Papadimitriou-Olivgeris, Fotini Fligou, Iris Spiliopoulou, Christina Bartzavali, Vasiliki Dodou, Sophia Vamvakopoulou, Kyriaki Koutsileou, Anastasia Zotou, Evangelos D. Anastassiou, Myrto Christofidou, Markos Marangos

Polish Journal of Microbiology, Volume 66 , ISSUE 2, 251–254

Original Paper | 10-December-2018

A Novel Approach to Study the Effect of Ciprofloxacin on Biofilms of Corynebacterium spp. Using Confocal Laser Scanning Microscopy

Abstract Non-diphtherial corynebacteria are Gram-positive rods that cause opportunistic infections, what is supported by their ability to produce biofilm on artificial surfaces. In this study, the characteristic of the biofilm produced on vascular and urological catheters was determined using a confocal microscopy for the most frequently involved in infections diphtheroid species. They were represented by the reference strains of Corynebacterium striatum ATCC 6940 and C. amycolatum ATCC 700207


Polish Journal of Microbiology, Volume 67 , ISSUE 4, 431–440

original-paper | 30-November-2017

Interferon Gamma Release Assays in Patients with Respiratory Isolates of Non-Tuberculous Mycobacteria – a Preliminary Study

immunological response assessed by IGRAs (Demkow 2011). This observation may be important, especially in the countries with low Tb burden, defined by European Centre for Disease Prevention and Control experts as notification rate lower than 20 per 100 000 population (ECDC/WHO 2018), and with increased incidence of diseases caused by NTM (Prevots et al. 2010). In Poland, as well as in Slovakia and in the United Kingdom, a large proportion of NTM infections have been caused by M. kansasii, possibly


Polish Journal of Microbiology, Volume 68 , ISSUE 1, 1–5

Short Communication | 07-June-2016

Enteroviruses Associated with Aseptic Meningitis in Poland, 2011–2014

). The highest frequency of neurological infections (32.7%) occurred in children aged 5–9 years, mostly males (63.9%).

Magdalena Wieczorek, Agnieszka Figas, Arleta Krzysztoszek

Polish Journal of Microbiology, Volume 65 , ISSUE 2, 231–235

Short Communication | 27-September-2017

Genetic Characterization of Human Enteroviruses Associated with Hand, Foot and Mouth Diseases in Poland, 2013–2016

first report of CVA6 infections associated with HFMD in Poland. These results emphasize the need for continuous monitoring of HFMD and facilitation of the diagnosis using molecular approaches.

Magdalena Wieczorek, Agnieszka Ciąćka, Arleta Krzysztoszek, Agnieszka Figas, Leszek Szenborn

Polish Journal of Microbiology, Volume 66 , ISSUE 3, 405–409

original-paper | 30-November-2018

New Insight into Genotypic and Phenotypic Relatedness of Staphylococcus aureus Strains from Human Infections or Animal Reservoirs

alarms that the most antimicrobial-resistant healthcare-associated infections are caused by the methicillin-resistant S. aureus (MRSA). Estimating the level of distribution, the MRSA isolates are responsible for 10% to 25% of all staphylococcal infections in Poland; in Slovakia, these rates are even higher (25% to 50%). Moreover, an increasing problem is the expansion of community-acquired MRSA (ECDC 2015). Staphylococcal strains carrying antimicrobial-resistance genes colonize a vast range of animal


Polish Journal of Microbiology, Volume 68 , ISSUE 1, 93–104

Research paper | 13-December-2017


This paper proposes system identification on application of nonlinear AR (NAR) based on Artificial Neural Network (ANN) for monitor of dengue infections. In building the model, three selection criteria, i.e. the final prediction error (FPE), Akaike’s Information Criteria (AIC), and Lipschitz number were used. Each of the models is divided into two approaches, which are unregularized approach and regularized approach. The findings indicate that NARMAX model with regularized approach yields

H. Abdul Rahim, F. Ibrahim, M. N. Taib

International Journal on Smart Sensing and Intelligent Systems, Volume 3 , ISSUE 4, 783–806

Mini Review | 28-December-2016

Viral Infection of the Heart: Pathogenesis and Diagnosis

Viral infections of the heart cause serious clinical problems, either as infectious myocarditis, which usually is a consequence of acute infection or as idiopathic dilated cardiomyopathy, resulting rather from a chronic infection. This minireview presents an up-to-date view on patho­mechanisms of viral infection of the heart tissues, the role of immune system in controlling infectious process at its various stages and current possibilities of recognizing viral infection of the heart with

Mateusz Kuffner, Agnieszka Pawlak, Maciej Przybylski

Polish Journal of Microbiology, Volume 65 , ISSUE 4, 391–398

Short Communication | 28-December-2016

The Usefulness of Biosynthetic Vascular Graft Omniflow II and Autologous Veins for the Treatment of Massive Infection of Dacron Vascular Graft with Enterococcus faecalis HLAR

Infections of vascular grafts are the most severe complications in vascular surgery. We present the case of a 73-year-old male with infection of a dacron prosthesis with a strain of Enterococcus faecalis. The patient was treated with replacement of a full prosthesis with a combined graft constructed from Biosynthetic Vascular graft Omniflow and autologous veins. This graft is recommended for implantation in patients with a higher risk of infection. Our case is one of the first reported usage of

Witold Woźniak, Robert Bajno, Michał Świder, Piotr Ciostek

Polish Journal of Microbiology, Volume 65 , ISSUE 4, 471–474

original-paper | 27-March-2019

In Vitro and In Vivo Activity of Zabofloxacin and Other Fluoroquinolones Against MRSA Isolates from A University Hospital in Egypt

Introduction Staphylococcus aureus has been considered as one of the pathogenic bacteria responsible for a wide variety of diseases. Such diseases range from slight skin infections to critical infections including septicemia (Tokajian 2014). After the introduction of methicillin in 1959, methicillin-resistant S. aureus (MRSA) has transpired as a significant hospital-associated pathogen (Tokajian 2014). The widespread of MRSA and its capability for escalating in hospitals and community settings


Polish Journal of Microbiology, Volume 68 , ISSUE 1, 59–69

Short Communication | 30-March-2017

Outpatient Antibiotic Consumption Fluctuations in a View of Unreasonable Antibacterial Therapy

significant. Statistically significant differences in various drug forms dispensation were also observed. Increased consumption of antibiotics in seasons of influenza-like illnesses might be connected with a lack of proper diagnostics or numerous cases of bacterial co-infections.

Marcin Ciszewski, Tomasz Czekaj, Eligia M. Szewczyk

Polish Journal of Microbiology, Volume 66 , ISSUE 1, 119–123

Short Communication | 04-December-2017

Inhibition of Multidrug-Resistant Gram-Positive and Gram-Negative Bacteria by a Photoactivated Porphyrin

. coli and P. aeruginosa showed very low susceptibility.In a later stage, suspensions of Gram-negative bacteria were processed with EDTA before photo-activation, obtaining a significant decrease in viable counts. In view of the results, if the combination of low porphyrin concentrations and short irradiation times will be effectivein vivo also, this approach could be a possible alternative to antibiotics, in particular against localized infections due to multidrug-resistant microorganisms.

Moreno Bondi, Anna Mazzini, Simona De Niederhäusern, Ramona Iseppi, Patrizia Messi

Polish Journal of Microbiology, Volume 66 , ISSUE 4, 533–536

Mini Review | 04-September-2018

Are Probiotic Really Safe for Humans?

(for animal use) and designer probiotics (genetically modified probiotics). Safety assessment of bacterial strains used as probiotics should be carefully studied. Even though probiotic bacteria have the generally recognized as safe (GRAS status), there are several reports about side effects triggered by the presence of these organisms. Microorganisms used as probiotics may cause systemic infections, stimulate the immune system, disturb metabolism and participate in horizontal gene transfer.


Polish Journal of Microbiology, Volume 67 , ISSUE 3, 251–258

Original Paper | 28-December-2016

High Seroprevalence of CMV Among Women of Childbearing Age Implicates High Burden of Congenital Cytomegalovirus Infection in Poland

Cytomegaloviruses are common worldwide, with variable frequency of infections. The infection in pregnancy may lead to pregnancy loss or serious sequelae for the child. To understand the risk posed by CMV in Poland we conducted cross-sectional study on women aged 15–49 basing on existing serum bank. Age dependent CMV incidence, the rates of congenital infection and sequelae were modelled from sero-prevalence, literature and demographic data. The overall anti-CMV IgG prevalence was 81.9

Joanna Siennicka, Milena Dunal-Szczepaniak, Agnieszka Trzcińska, Paulina Godzik, Magdalena Rosińska

Polish Journal of Microbiology, Volume 65 , ISSUE 4, 425–432

Case report | 25-January-2018

Does duration and sampling of external ventricular drainage systems influence infection rate?

External ventricular drainage systems are often necessary in neurological and neurosurgical patients. The purpose of this literature review is to review the problem of external ventricular drain related infections resulting from repeated cerebrospinal fluid sampling and manipulation of the drain systems. The aim is to provide an appropriate improved protocol for care of patients undergoing external ventricular drainage treatment. Routine analysis of cerebrospinal fluid is often performed to

Nomathemba Moyo

Australasian Journal of Neuroscience, Volume 26 , ISSUE 2, 7–14

Original Paper | 30-March-2017

Expression of the Fluoroquinolones Efflux Pump Genes acrA and mdfA in Urinary Escherichia coli Isolates

Escherichia coli is one of the most frequent causes of urinary tract infections. Efflux system overexpression is reported to contribute to E. coli resistance to several antibiotics. Our aim in this study was to investigate the relation between antibiotic resistance and the expres­sion of the efflux pump genes acrA and mdfA in E. coli by real-time reverse transcription-PCR. We tested the in vitro susceptibilities to 12 antibiotics in 28 clinical isolates of E. coli obtained from urine

Sarah M. Abdelhamid, Rania R. Abozahra

Polish Journal of Microbiology, Volume 66 , ISSUE 1, 25–30

Original Paper | 04-December-2017

The Prevalence of Exoenzyme S Gene in Multidrug-Sensitive and Multidrug-Resistant Pseudomonas aeruginosa Clinical Strains

Pseudomonas aeruginosa rods are one of the most commonly isolated microorganisms from clinical specimens, usually responsible for nosocomial infections. Antibiotic-resistant P. aeruginosa strains may present reduced expression of virulence factors. This fact may be caused by appropriate genome management to adapt to changing conditions of the hospital environment. Virulence factors genes maybe replaced by those crucial to survive, like antimicrobial resistance genes. The aim of this study was

Tomasz Bogiel, Aleksander Deptuła, Joanna Kwiecińska-Piróg, Małgorzata Prażyńska, Agnieszka Mikucka, Eugenia Gospodarek-Komkowska

Polish Journal of Microbiology, Volume 66 , ISSUE 4, 427–431

Original Paper | 10-December-2018

Drug Susceptibility of Non-tuberculous Strains of Mycobacterium Isolated from Birds from Poland

antituberculous drugs most commonly used in the treatment of mycobacterial infections in humans. For drug susceptibility tests, drugs such as isoniazid, rifampicin, streptomycin, ethambutol, ofloxacin, capreomycin, cycloserine and ethionamide were used. A high degree of drug resistance was demonstrated, particularly in Mycobacterium avium. Isolates of Mycobacterium xenopi showed a relatively good susceptibility to the drugs tested. The drug resistance of Mycobacterium genavense has not been determined, but


Polish Journal of Microbiology, Volume 67 , ISSUE 4, 487–492

Article | 21-July-2017

Agamermis (Nematoda: Mermithidae) Infection in South Carolina Agricultural Pests

Native and invasive stink bugs (Hemiptera: Pentatomidae) and the closely related invasive Megacopta cribraria (Hemiptera: Plataspidae) are agricultural pests in the southeastern United States. Natural enemies, from various phyla, parasitize these pests and contribute to population regulation. We specifically investigated Nematoda infections in pentatomid and plataspid pests in one soybean field in South Carolina in 2015. Nematodes were identified through molecular and morphological


Journal of Nematology, Volume 48 , ISSUE 4, 290–296

Mini Review | 04-September-2018

Secondary Metabolites of Actinomycetes and their Antibacterial, Antifungal and Antiviral Properties

The growing resistance of microorganisms towards antibiotics has become a serious global problem. Therapeutics with novel chemical scaffolds and/or mechanisms of action are urgently needed to combat infections caused by multidrug resistant pathogens, including bacteria, fungi and viruses. Development of novel antimicrobial agents is still highly dependent on the discovery of new natural products. At present, most antimicrobial drugs used in medicine are of natural origin. Among the natural


Polish Journal of Microbiology, Volume 67 , ISSUE 3, 259–272

original-paper | 30-November-2017

Antibiotic Susceptibility of Cronobacter spp. Isolated from Clinical Samples

meningitis, necrotizing enterocolitis, and bloodstream infections in neonates and infants. The infections caused by these bacteria are often severe with fatal health consequences. The lethality rate of meningitis in infants was estimated to be 41.9% with death occurring within hours after the manifestation of symptoms (Willis et al. 1988; Friedemann 2009; Holy and Forsythe 2014). The surviving individuals usually develop irreversible sequelae including serious neurological complications such as


Polish Journal of Microbiology, Volume 68 , ISSUE 1, 1–10

Original Paper | 28-December-2016

Gas Gangrene of Different Origin Associated with Clostridium perfringens Type A in Three Patients Simultaneously Hospitalized in a Single Department of Orthopedics and Traumatology in Poland

originating from the three studied patients represent three genetically different restrictive patterns which correspondedto three different clones – clone A, clone B and clone C. As a result of the study, it is possible to conclude that the studied patients simulta­neously hospitalized in a single Department of Orthopedics and Traumatology developed three different endogenous infections.

Monika Brzychczy-Włoch, Dorota Ochońska, Anna Piotrowska, Małgorzata Bulanda

Polish Journal of Microbiology, Volume 65 , ISSUE 4, 399–406

Original Paper | 09-March-2018

The Very Low Frequency of Epstein-Barr JC and BK Viruses DNA in Colorectal Cancer Tissues in Shiraz, Southwest Iran

Viruses including Epstein-Barr virus (EBV), JCV and BKV have been reported to be associated with some cancers. The association of these viruses with colorectal cancers remains controversial. Our objective was to investigate their infections association with adenocarcinoma and adenomatous polyps of the colon. Totally, 210 paraffin-embedded tissue specimens encompassing 70 colorectal adenocarcinoma, 70 colorectal adenomatous and 70 colorectal normal tissues were included. The total DNA was

Jamal Sarvari, Shahab Mahmoudvand, Neda Pirbonyeh, Akbar Safaei, Seyed Younes Hosseini

Polish Journal of Microbiology, Volume 67 , ISSUE 1, 73–79

Mini Review | 30-June-2018

Bacteriological, Clinical and Virulence Aspects of Aeromonas-associated Diseases in Humans

scepticemia, skin, eye, wound and respiratory tract infections in humans. Several virulence and antibiotic resistance genes have been identified and isolated from this group, which if present in their mobile genetic elements, may be horizontally transferred to other naive environmental bacteria posing threat to the society. The extensive and indiscriminate use of antibiotics has given rise to many resistant varieties of bacteria. Multidrug resistance genes, such as NDM1, have been identified in this group


Polish Journal of Microbiology, Volume 67 , ISSUE 2, –

Original Paper | 10-December-2018

Emodin Reduces the Activity of (1,3)-β-D-glucan Synthase from Candida albicans and Does Not Interact with Caspofungin

Abstract Candidiasis is the most common opportunistic yeast infection, with Candida albicans as a paramount causative species. (1,3)-β-D-glucan is one of the three main targets of clinically available antifungal agents used to treat Candida infections. It is one of the most abundant fungal cell wall components. Echinocandins represent the newest class of antifungals affecting cell wall biosynthesis through non-competitive inhibition of (1,3)-β-D-glucan synthase. Therefore, treatment with


Polish Journal of Microbiology, Volume 67 , ISSUE 4, 463–470

Article | 24-July-2017

Gossypium arboreum Accessions Resistant to Rotylenchulus reniformis

after inoculation. The 15 accessions supporting the fewest infections (PI 529992, PI 615755, PI 615766, PI 615788, PI 615848, PI 615856, PI 615950, PI 615977, PI 615991, PI 616008, PI 616016, PI 616062, PI 616126, PI 616159, and A2 553) were evaluated again in confirmation tests lasting 8 wk. The combined totals of nematodes extracted from soil and eggs extracted from roots were analyzed. All 15 accessions tested supported significantly smaller reniform nematode populations than


Journal of Nematology, Volume 48 , ISSUE 4, 223–230

Original Paper | 30-March-2017

Antimicrobial Effects of Platelet-rich Plasma against Selected Oral and Periodontal Pathogens

Antimicrobial properties of platelet rich plasma (PRP) against various microorganisms have been recently pointed out. PRP could be an alternative to conventional antibiotics in preventing oral and periodontal infections. We examined whether PRP has in vitro antimicrobial properties against Aggregatibacter actinomycetemcomitans, Prophyromonas gingivalis, Staphylococcus aureus and Candida albicans. PRP and platelet-poor plasma (PPP) were obtained from whole blood of 10 healthy volunteers and 10

Reham L. Aggour, Lina Gamil

Polish Journal of Microbiology, Volume 66 , ISSUE 1, 31–37

Original Paper | 04-December-2017

Temperature, pH and Trimethoprim-Sulfamethoxazole Are Potent Inhibitors of Biofilm Formation by Stenotrophomonas maltophilia Clinical Isolates

Stenotrophomonas maltophilia, an opportunistic pathogen usually connected with healthcare-associated infections, is an environmental bacterium. Intrinsic resistance to multiple antibiotics, with different virulence determinants in the last decade classified this bacterium in the group of global multiple drug resistant (MDR) organism. S. maltophilia clinical isolates, were collected from tertiary care pediatric hospital in Belgrade, Serbia to investigate influence of different factors on biofilm

Marjan Biočanin, Haowa Madi, Zorica Vasiljević, Milan Kojić, Branko Jovčić, Jelena Lozo

Polish Journal of Microbiology, Volume 66 , ISSUE 4, 433–438

short-communication | 05-July-2019

Evaluation of The Pathogenic Potential of Insecticidal Serratia marcescens Strains to Humans

determine the genetic similarity of Gram-negative rods (Rasschaert et al. 2005; Henriques et al. 2006; Moura et al. 2007; Czajkowski et al. 2010; Mokracka et al. 2011). The analysis revealed a high similarity of all S. marcescens isolates cultured from S. exigua intestinal track. DNA profiles of strains that caused infections of S. exigua varied significantly from that of the strain infecting A. segetum. The strains made three clusters, yet we did not treat them as clones as they differed in resistance


Polish Journal of Microbiology, Volume 68 , ISSUE 2, 185–191

Original Paper | 28-December-2016

Genotyping and Clinicoepidemiological Characterization of Rotavirus Acute Gastroenteritis in Egyptian Children

children ≤ 3 years-old with AGE. RVA G and P typing were performed with type-specific primers. RVA was detected in 48.9% of patients. Higher rates of RVA infections, 73.3% were detected in infants < 1 year-old. Breast-fed infants were significantly fewer in RVA positive group (P = 0.0006). Non-breast­feeding was a major risk factor for RVA AGE (OR 0.3, P = 0.02). RVA diarrhea occurred mostly in autumn and winter months (55.4% and 26.6%) with a significant difference in autumn (P = 0.0005) and

Niveen Saudy, Walaa Othman Elshabrawy, Ahmed Megahed, Mona F. Foad, Aly F. Mohamed

Polish Journal of Microbiology, Volume 65 , ISSUE 4, 433–442

Original Paper | 28-June-2017

Genetic Characterization of a Novel Composite Transposon Carrying armA and aac(6)-Ib Genes in an Escherichia coli Isolate from Egypt

Aminoglycosides are used in treating a wide range of infections caused by Gram-positive and Gram-negative bacteria; however, amino­glycoside resistance is common and occurs by several mechanisms. Among these mechanisms is bacterial rRNA methylation by the 16S rRNA methyl transferase (16S-RMTase) enzymes; but data about the spread of this mechanism in Egypt are scarce. Cephalosporins are the most commonly used antimicrobial agents in Egypt; therefore, this study was conducted to determine

Mona T. Kashef, Omneya M. Helmy

Polish Journal of Microbiology, Volume 66 , ISSUE 2, 163–169

Original Paper | 10-December-2018

Microbiology and Drug Resistance of Pathogens in Patients Hospitalized at the Nephrology Department in the South of Poland

Abstract A retrospective study was conducted among 498 patients with urinary tract infections (UTI) referred to our department from January 2013 to December 2015. This study was performed to evaluate the etiology of UTI and the antibiotic susceptibility profile of Escherichia coli (E. coli) as the main etiological factor in different age groups. Urine samples were examined using standard microbiological methods. Three hundred sixty-three samples (72.9%) were identified as E. coli, of which 29


Polish Journal of Microbiology, Volume 67 , ISSUE 4, 517–524

Case report | 29-June-2016

Ultrasound imaging as the basis of a clinical diagnosis of systemic bartonellosis in a patient after bone marrow transplantation. A case report

Infections in immunocompromised patients after hematopoietic stem cell transplantation can have a severe and atypical course. Some opportunistic pathogens are difficult to detect in microbiological tests, and that is why treatment success depends on an accurate clinical diagnosis. This article presents a case of a 7-year-old girl with severe aplastic anemia treated with bone marrow transplantation with post-transplantation period complicated by persistent, hectic fever, with peak episodes of 39

Aleksandra Krasowska-Kwiecień, Jolanta Goździk, Magdalena Woźniak, Wojciech Czogała

Journal of Ultrasonography, Volume 16 , ISSUE 65, 204–209

Review | 31-August-2018

Ultrasound screening for pyelectasis in pregnant women. Clinical necessity or “art for art’s sake”?

of pregnancy and in multiple pregnancies. Pyelectasis during pregnancy rarely causes clinical symptoms and often does not require treatment. Nevertheless, urine retention in the renal pelvicalyceal system is conducive to the development of asymptomatic bacteriuria and may be a risk factor for recurrent urinary tract infections, pyelonephritis and acute kidney failure; it may also cause renal colic. In consequence, this condition can lead to intrauterine infection and premature labor in the

Piotr Szkodziak

Journal of Ultrasonography, Volume 18 , ISSUE 73, 152–157

Review | 29-June-2016

Standards for the assessment of salivary glands – an update

particular emphasis on lesions indicating high risk of malignancy. In acute bacterial inflammation, the salivary glands appear as hypoechoic, enlarged or normal-sized, with increased parenchymal flow. The echogenicity is significantly increased in viral infections. Degenerative lesions may be seen in chronic inflammations. Hyperechoic deposits with acoustic shadowing can be visualized in lithiasis. Parenchymal fibrosis is a dominant feature of sialosis. Sjögren syndrome produces different pictures of

Piotr Zajkowski, Aleksandra Ochal-Choińska

Journal of Ultrasonography, Volume 16 , ISSUE 65, 175–190

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