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https://www.readbyqxmd.com/read/29337626/comparative-analysis-of-pasteurella-multocida-isolates-from-acute-and-chronic-fowl-cholera-cases-in-hungary-during-the-period-2005-through-2010
#1
Boglárka Sellyei, Ákos Thuma, Dmitriy Volokhov, Zsuzsanna Varga
Fowl cholera (FC) is a highly contagious and economically important disease of poultry worldwide. This study was performed on 218 Pasteurella multocida isolates collected from separated breeding farms or backyards with acute and chronic FC cases in multiple localities across Hungary during the period 2005-2010. All isolates were characterized by a broad range of biochemical, serological, and molecular methods, as well as their antibiotic susceptibility to aminoglycosides (A), macrolides (M), penicillins (P), quinolones (Q), cephalosporins, sulphonamides (S), and tetracyclines (T) was determined...
December 2017: Avian Diseases
https://www.readbyqxmd.com/read/29335824/broad-spectrum-resistance-of-pseudomonas-aeruginosa-from-shellfish-infrequent-acquisition-of-novel-resistance-mechanisms
#2
Ana Maravić, Ivica Šamanić, Matilda Šprung, Željana Fredotović, Nada Ilić, Josipa Dragičević, Jasna Puizina
Pseudomonas aeruginosa is one the most common multidrug-resistant pathogens worldwide. It has been previously detected in marine shellfish, but its antibiotic resistance in such environment has not been explored. By combining PCR detection of acquired genes, and resistance-nodulation-cell division (RND) efflux studying, we investigated the multifactorial resistance traits of 108 P. aeruginosa isolates recovered from wild-growing Mediterranean mussels (Mytilus galloprovincialis) in Croatia. Eleven different resistance profiles were found, with the main mechanism being the overexpression of intrinsic efflux pump(s), particularly MexAB-OprM...
January 15, 2018: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29333678/supplementary-feeding-as-a-source-of-multiresistant-salmonella-in-endangered-egyptian-vultures
#3
Guillermo Blanco
Wild birds have repeatedly been highlighted as vectors in the dissemination of livestock and human pathogens. Here, the occurrence, serotypes and antimicrobial resistance of Salmonella were assessed in adult Egyptian vultures (Neophron percnopterus), to test the hypothesis that infection is associated with the consumption of swine carcasses provided at supplementary feeding stations (SFSs). Faeces of year-round resident griffon vultures (Gyps fulvus) were also tested to assess whether infection was acquired in the breeding grounds of both species or in the African wintering quarters of Egyptian vultures...
January 14, 2018: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/29313864/trend-of-mdr-microorganisms-isolated-from-the-biological-samples-of-patients-with-hai-and-from-the-surfaces-around-that-patient
#4
Vincenza La Fauci, Gaetano Bruno Costa, Adriana Arena, Elvira Ventura Spagnolo, Cristina Genovese, Maria Angela Palamara, Raffaele Squeri
Healthcare-associated infections (HAI) continue to be a major public health concern. A number of epidemiologically relevant HAI microorganisms are multidrug-resistant (MDR) germs that can spread rapidly and/or carry multiple resistance to antibiotics. They are the cause of high mortality and possible nosocomial epidemics. For this reason, we implemented microbiological surveillance acquiring samples from patients with HAI and environmental samples from the surfaces surrounding those patients. A retrospective study was carried out from January 2014 to December 2016 in two departments of the University Hospital in Messina, Italy: the Microbiology and the Hygiene Laboratories...
January 9, 2018: New Microbiologica
https://www.readbyqxmd.com/read/29304207/changes-in-the-epidemiological-landscape-of-invasive-candidiasis
#5
Frederic Lamoth, Shawn R Lockhart, Elizabeth L Berkow, Thierry Calandra
The epidemiology of invasive candidiasis has evolved in recent years, warranting a review of the changes and the implications for current and future diagnosis and treatment. The overall burden of invasive candidiasis remains high, particularly in the expanding populations of patients at risk of opportunistic infection, such as the elderly or immunosuppressed. Progressive shifts from Candida albicans to non-albicans Candida spp. have been observed globally. The recent emergence of novel, multiresistant species, such as Candida auris, amplifies the call for vigilance in detection and advances in treatment...
January 1, 2018: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/29301193/antibiotic-resistance-of-acinetobacter-spp-isolates-from-the-river-danube-susceptibility-stays-high
#6
Clemens Kittinger, Alexander Kirschner, Michaela Lipp, Rita Baumert, Franz Mascher, Andreas H Farnleitner, Gernot E Zarfel
Acinetobacter spp. occur naturally in many different habitats, including food, soil, and surface waters. In clinical settings, Acinetobacter poses an increasing health problem, causing infections with limited to no antibiotic therapeutic options left. The presence of human generated multidrug resistant strains is well documented but the extent to how widely they are distributed within the Acinetobacter population is unknown. In this study, Acinetobacter spp. were isolated from water samples at 14 sites of the whole course of the river Danube...
December 30, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29290482/first-report-on-extended-spectrum-beta-lactamase-esbl-producing-escherichia-coli-from-european-free-tailed-bats-tadarida-teniotis-in-portugal-a-one-health-approach-of-a-hidden-contamination-problem
#7
Andreia Garcês, Susana Correia, Francisco Amorim, José Eduardo Pereira, Gilberto Igrejas, Patrícia Poeta
The main aim of this study was to characterize the diversity of extended-spectrum beta-lactamases (ESBLs) in Escherichia coli isolates from European free tailed-bats (Tadarida teniotis) in Portugal. ESBL-producing E. coli isolates were recovered from 14 of 146 faecal samples (9.6%) and a total of 19 isolates were completely characterized. The more prevalent beta-lactamase genes detected were blaCTX-M-1 (57.9%) and blaCTX-M-3 (36.8%), followed by blaSHV (31.6%), blaTEM (21.1%), blaOXA (10.5%) and blaCTX-M-9 (10...
December 23, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/29280153/methods-for-identification-and-differentiation-of-different-shewanella-spp-isolates-for-diagnostic-use
#8
V Jung-Schroers, A Jung, M Ryll, J Bauer, F Teitge, D Steinhagen
Shewanella spp. are Gram-negative, rod-shaped, motile bacteria that are widely distributed in marine and freshwater environments. The bacteria are present in the physiological microflora of fish from temperate waters and are known as fish spoilage species. From clinically healthy fish and from fish with skin ulcerations, Shewanella spp. is regularly isolated, indicating a possible role as fish pathogen. In this study, 74 isolates of Shewanella spp. were analysed. For species identification, biochemical techniques, 16S rRNA sequencing, MALDI-TOF MS and the Sherlock Microbial Identification System (MIS) based on the composition of fatty acid ethyl esters were compared...
December 27, 2017: Journal of Fish Diseases
https://www.readbyqxmd.com/read/29277529/comparative-genomics-of-the-rmtb-carrying-inci1-st136-plasmids-in-avian-escherichia-coli-isolates-from-chickens-in-china
#9
Li Yuan, Jian-Hua Liu, Xiang-Dang Du, Zhi-Yong Zong, Min Chen, Gong-Zheng Hu, Yu-Shan Pan
Eight rmtB-carrying avian Escherichia coli strains from a farm in China were characterized in our previous study, but little is known about the backbones and entire multiresistance regions (MRRs) of these plasmids. Here, three rmtB-carrying IncI1 ST136 plasmids were analyzed by whole-plasmid sequencing and compared. These plasmids were composed of an 83,470-bp IncI1 backbone carrying genes responsible for plasmid replication, transfer, maintenance, and stability functions, and a 17,330-bp MRR for pEC006 and pEC007, and a 34,626-bp MRR for pEC008...
December 22, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/29277142/carriage-of-multidrug-resistant-bacteria-among-pediatric-patients-before-and-during-their-hospitalization-in-a-tertiary-pediatric-unit-in-tunisia
#10
Miniar Tfifha, Asma Ferjani, Manel Mallouli, Nesrine Mlika, Saoussen Abroug, Jalel Boukadida
The pandemic spread of multidrug-resistant (MDR) bacteria (i.e., methicillin-resistant Staphylococcus aureus (MRSA), extended-spectrum b-lactamase-producing Enterobacteriaceae (ESBLPE), vancomycin-resistant enterococci, carbapenemase-producing Enterobacteriaceae (CPE), multiresistant Pseudomonas aeruginosa and multiresistant Acinetobacter baumannii) pose a threat to healthcare Worldwide. We found limited data of MDR bacteria in pediatric patients hospitalized in Tunisian tertiary healthcare.The aim of the study is to evaluate the acquisition rate of MDR acquisition during hospitalization and to explore some of the associated risk factors for both carriage and acquisition at the pediatric department, Sahloul University Hospital...
December 2018: Libyan Journal of Medicine
https://www.readbyqxmd.com/read/29276613/vita-activa-in-biotechnology-what-we-do-with-fungi-and-what-fungi-do-with-us
#11
EDITORIAL
Martin Weinhold, Edeltraud Mast-Gerlach, Vera Meyer
Filamentous fungi are fascinating microorganisms. One of the reasons why it is so worthwhile to take a closer look at them is their capacity to produce secondary metabolites. Some of these substances have the potential to be of great use for mankind, such as it was the case with penicillin and its discovery in 1928. Almost a century later, the situation in healthcare could possibly turn back to the state before the development of the first antibiotics. Due to an overuse of antibiotics we are facing a surge of multiresistant bacteria that are not inhibited by any of the currently known drugs...
2017: Fungal Biology and Biotechnology
https://www.readbyqxmd.com/read/29275130/evaluation-of-antibacterial-and-modifying-action-of-catechin-antibiotics-in-resistant-strains
#12
Fernanda Mateus Silva Gomes, Jayze da Cunha Xavier, Joycy Francely Sampaio Dos Santos, Yedda Maria Lobo Soares de Matos, Saulo Relison Tintino, Thiago Sampaio de Freitas, Henrique Douglas Melo Coutinho
Diseases caused by bacteria are today one of the great problems of present time. Access to over-the-counter medication, the indiscriminate use of antibacterials and high rates of hospitalization have contributed to the increase in cases. This picture has led to the search for new alternative drugs. Thus, secondary metabolites have been reported as a possible treatment option, being evidenced in many researches to ascertain their combination with existing drugs. This research aimed to evaluate the antibacterial effect and the antibiotic activity modifying action of the catechin compound against Pseudomonas aeruginosa, Escherichia coli and Staphylococcus aureus multiresistant strains...
December 21, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29229976/a-novel-tn1696-like-composite-transposon-tn6404-harboring-bla-imp-4-in-a-klebsiella-pneumoniae-isolate-carrying-a-rare-esbl-gene-bla-sfo-1
#13
Kai Zhou, Wei Yu, Ping Shen, Haifeng Lu, Baohong Wang, John W A Rossen, Yonghong Xiao
Genetic determinants of a clinical Klebsiella pneumoniae isolate (KP1814) coproducing IMP-4 and a rare ESBL gene SFO-1 was investigated. KP1814 belongs to a novel sequence type (ST) assigned to ST2270. WGS identified four circular DNA sequences in KP1814, including two multidrug-resistance (MDR) plasmids, one virulence plasmid, and one circular form. The MDR plasmid pKP1814-1 (299.9 Kb) is untypeable, and carries two large mosaic multiresistance regions (MRRs). bla SFO-1 and bla IMP-4 co-exists on MRR1, and bla SFO-1 is associated with an IS/Tn-independent genetic context...
December 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29229656/informing-future-research-for-carriage-of-multiresistant-gram-negative-bacteria-problems-with-recruiting-to-an-english-stool-sample-community-prevalence-study
#14
Donna M Lecky, Deborah Nakiboneka-Ssenabulya, Tom Nichols, Peter Hawkey, Kim Turner, Keun-Taik Chung, Mike Thomas, Helen Lucy Thomas, Li Xu McCrae, Sahida Shabir, Susan Manzoor, Adela Alvarez-Buylla, Steve Smith, Cliodna McNulty
OBJECTIVES: This study aims to highlight problems with recruiting to an English stool sample community prevalence study. It was part of a larger cross-sectional research to determine the risk factors for the presence of extended-spectrum beta-lactamase and carbapenemase-producing coliforms in stool samples of the asymptomatic general English population. SETTING: Four National Health Service primary care trusts (PCTs) of England representing a different section of the population of England: Newham PCT; Heart of Birmingham Teaching PCT; Shropshire County PCT; and Southampton City PCT...
December 10, 2017: BMJ Open
https://www.readbyqxmd.com/read/29225976/intensive-care-in-a-patient-with-toxic-epidermal-necrolysis
#15
J Wallenborn, M Fischer
Toxic epidermal necrolysis (TEN) is a serious adverse drug reaction with high lethality, which usually requires intensive-medical care. A 44-year-old man developed generalized exanthema with increasing exfoliation and mucosal involvement after taking allopurinol, ibuprofen, and etoricoxib. The clinical diagnosis of TEN was histologically confirmed. Prednisolone therapy with 3 mg/kg body weight (BW) was not able to prevent further progress to finally 80% of the body surface, and infliximab 5 mg/kg BW was given as a single dose...
2017: Case Reports in Critical Care
https://www.readbyqxmd.com/read/29193368/curcumin-an-antibiotic-resistance-breaker-against-a-multiresistant-clinical-isolate-of-mycobacterium-abscessus
#16
Emanuela Marini, Mara Di Giulio, Gloria Magi, Silvia Di Lodovico, Maria Enrica Cimarelli, Andrea Brenciani, Antonia Nostro, Luigina Cellini, Bruna Facinelli
Curcumin, a phenolic compound extracted from Curcuma longa, exerts multiple pharmacological effects, including an antimicrobial action. Mycobacterium abscessus, an environmental, nontuberculous, rapidly growing mycobacterium, is an emerging human pathogen causing serious lung infections and one of the most difficult to treat, due to its multidrug resistance and biofilm-forming ability. We wanted to evaluate the antimicrobial and antivirulence activity of curcumin and its ability to synergize with antibiotics against a clinical M...
November 29, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/29186145/respective-impact-of-implementation-of-prevention-strategies-colonization-with-multiresistant-bacteria-and-antimicrobial-use-on-the-risk-of-early-and-late-onset-vap-an-analysis-of-the-outcomerea-network
#17
Wafa Ibn Saied, Bertrand Souweine, Maité Garrouste-Orgeas, Stéphane Ruckly, Michael Darmon, Sébastien Bailly, Yves Cohen, Elie Azoulay, Carole Schwebel, Aguila Radjou, Hatem Kallel, Christophe Adrie, Anne-Sylvie Dumenil, Laurent Argaud, Guillaume Marcotte, Samir Jamali, Laurent Papazian, Dany Goldgran-Toledano, Lila Bouadma, Jean-Francois Timsit
RATIONALE: The impact of prevention strategies and risk factors for early-onset (EOP) versus late-onset (LOP) ventilator-associated pneumonia (VAP) are still debated. OBJECTIVES: To evaluate, in a multicenter cohort, the risk factors for EOP and LOP, as the evolution of prevention strategies. METHODS: 7,784 patients with mechanical ventilation (MV) for at least 48 hours were selected into the multicenter prospective OUTCOMEREA database (1997-2016)...
2017: PloS One
https://www.readbyqxmd.com/read/29185252/multidrug-resistant-or-antimicrobial-resistant-pathogens-alternatives-to-new-antibiotics
#18
Anne-Sophie Brunel, Benoit Guery
For the last few decades, multidrug resistance has become an increasing concern for both Gram-positive and Gram-negative bacteria. The number of new molecules has dramatically decreased and antibiotic resistance is now a priority in the international community. Facing this new threat, a large number of new as well as "old" solutions are now being discussed in the medical community to propose an alternative to antibiotic treatments. A first option is to potentiate the effect of existing molecules through combinations to circumvent the individual molecule resistance...
November 29, 2017: Swiss Medical Weekly
https://www.readbyqxmd.com/read/29184097/csl2-a-novel-chimeric-bacteriophage-lysin-to-fight-infections-caused-by-streptococcus-suis-an-emerging-zoonotic-pathogen
#19
Roberto Vázquez, Mirian Domenech, Manuel Iglesias-Bexiga, Margarita Menéndez, Pedro García
Streptococcus suis is a Gram-positive bacterium that infects humans and various animals, causing human mortality rates ranging from 5 to 20%, as well as important losses for the swine industry. In addition, there is no effective vaccine for S. suis and isolates with increasing antibiotic multiresistance are emerging worldwide. Facing this situation, wild type or engineered bacteriophage lysins constitute a promising alternative to conventional antibiotics. In this study, we have constructed a new chimeric lysin, Csl2, by fusing the catalytic domain of Cpl-7 lysozyme to the CW_7 repeats of LySMP lysin from an S...
November 28, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29184076/deciphering-how-cpl-7-cell-wall-binding-repeats-recognize-the-bacterial-peptidoglycan
#20
Noemí Bustamante, Manuel Iglesias-Bexiga, Noelia Bernardo-García, Noella Silva-Martín, Guadalupe García, María A Campanero-Rhodes, Esther García, Isabel Usón, Rubén M Buey, Pedro García, Juan A Hermoso, Marta Bruix, Margarita Menéndez
Endolysins, the cell wall lytic enzymes encoded by bacteriophages to release the phage progeny, are among the top alternatives to fight against multiresistant pathogenic bacteria; one of the current biggest challenges to global health. Their narrow range of susceptible bacteria relies, primarily, on targeting specific cell-wall receptors through specialized modules. The cell wall-binding domain of Cpl-7 endolysin, made of three CW_7 repeats, accounts for its extended-range of substrates. Using as model system the cell wall-binding domain of Cpl-7, here we describe the molecular basis for the bacterial cell wall recognition by the CW_7 motif, which is widely represented in sequences of cell wall hydrolases...
November 28, 2017: Scientific Reports
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