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https://www.readbyqxmd.com/read/29752821/species-distribution-virulence-factors-and-antimicrobial-resistance-of-acinetobacter-spp-isolates-from-dogs-and-cats-a-preliminary-study
#1
Yui Kimura, Kazuki Harada, Takae Shimizu, Tomomi Sato, Akari Kajino, Masaru Usui, Yutaka Tamura, Yuzo Tsuyuki, Tadashi Miyamoto, Asami Ohki, Masahisa Watarai
We investigated the prevalence of virulence factors and antimicrobial resistance among 67 Acinetobacter spp. isolates, consisting of 21 Acinetobacter baumannii and 46 non-baumannii Acinetobacter from companion animals. The PCR analysis showed that the most prevalent virulence gene was afa/draBC (29.9%), followed by papC (22.4%) and cvaC (20.9%). Antimicrobial susceptibility testing revealed that resistance to gentamicin (14.9%) and ciprofloxacin (11.9%) was relatively prevalent. Five gentamicin- and/or ciprofloxacin-resistant A...
May 12, 2018: Microbiology and Immunology
https://www.readbyqxmd.com/read/26587840/multilocus-sequence-typing-and-virulence-profiles-in-uropathogenic-escherichia-coli-isolated-from-cats-in-the-united-states
#2
Xiaoqiang Liu, Kamoltip Thungrat, Dawn M Boothe
The population structure, virulence, and antimicrobial resistance of uropathogenic E. coli (UPEC) from cats are rarely characterized. The aim of this study was to compare and characterize the UPEC isolated from cats in four geographic regions of USA in terms of their multilocus sequence typing (MLST), virulence profiles, clinical signs, antimicrobial resistance and phylogenetic grouping. The results showed that a total of 74 E. coli isolates were typed to 40 sequence types with 10 being novel. The most frequent phylogenetic group was B2 (n = 57)...
2015: PloS One
https://www.readbyqxmd.com/read/26518125/relationship-between-phylogenetic-groups-antibiotic-resistance-and-patient-characteristics-in-terms-of-adhesin-genes-in-cystitis-and-pyelonephritis-isolates-of-escherichia-coli
#3
Doganhan Kadir Er, Devrim Dundar, Huseyin Uzuner, Agim Osmani
Extraintestinal pathogenic Escherichia coli (E. coli) is considered as the main causative agent of urinary tract infections worldwide. The relationship between antimicrobial resistance, phylogenetic groups, patient characteristics and adhesin virulence genes are complex and not fully understood. In this study, among 146 urinary isolates of E. coli, phylogenetic groups and various adhesin virulence genes were examined with multiplex Polymerase Chain Reaction methods. Patient characteristics divided into sex, cystitis and pyelonephritis; community-acquired and hospital-acquired; complicated and uncomplicated infection...
December 2015: Microbial Pathogenesis
https://www.readbyqxmd.com/read/23774186/persistence-and-prevalence-of-pathogenic-and-extended-spectrum-beta-lactamase-producing-escherichia-coli-in-municipal-wastewater-treatment-plant-receiving-slaughterhouse-wastewater
#4
Alpha Amadou Diallo, Hubert Brugère, Monique Kérourédan, Véronique Dupouy, Pierre-Louis Toutain, Alain Bousquet-Mélou, Eric Oswald, Delphine Bibbal
We compared the prevalence of pathogenic and extended-spectrum beta-lactamase (ESBL) - producing Escherichia coli in effluents of a municipal wastewater treatment plant (WWTP) receiving wastewater from a slaughterhouse. A total of 1248 isolates were screened for the presence of virulence genes associated with enterohemorrhagic E. coli (EHEC) (stx1, stx2, and eae) and extraintestinal pathogenic E. coli (ExPEC) (sfa/focDE, kpsMT K1, hlyA, papEF, afa/draBC, clbN, f17A and cnf). The prevalence of atypical enteropathogenic E...
September 1, 2013: Water Research
https://www.readbyqxmd.com/read/23227061/regional-differences-in-phylogenetic-group-of-escherichia-coli-strains-isolated-from-children-with-urinary-tract-infection-in-korea
#5
Ui-Yoon Choi, Seung Beom Han, Soo Young Lee, Jin Han Kang, Sun Mi Kim, Sang Hyuk Ma
PURPOSE: We phylogenetically analyzed the Escherichia coli strains isolated from children with urinary tract infection (UTI) in 2 regions of Korea. Virulence factors (VFs) and antibiotic resistance of the strains were also determined to compare the possible differences. METHODS: A total of 138 E. coli strains were collected from the 2 regions; Gyeongin (78 strains) and Gyeongnam (60 strains). The phylogenetic groups were determined using the triplex polymerase chain reaction (PCR) method and multiplex PCRs were used to detect 7 VFs genes (fimH, papC, iutA, hlyA, sfa/focDE, afa/draBC, and kpsMT II)...
November 2012: Korean Journal of Pediatrics
https://www.readbyqxmd.com/read/21466767/bacterial-characteristics-of-importance-for-recurrent-urinary-tract-infections-caused-by-escherichia-coli
#6
REVIEW
Karen Ejrnæs
Urinary tract infections (UTIs) are among the most common bacterial infectious diseases encountered in clinical practice and account for significant morbidity and high medical costs. Escherichia coli is the most predominant pathogen causing 80-90% of community-acquired UTIs and 30-50% of nosocomially-acquired UTIs. Recurrent UTIs (RUTIs) are reported in 25% of women within 6 months of an acute UTI episode and pose a major problem. The aim of the present thesis was to look for bacterial characteristics of importance for recurrence of UTI caused by E...
April 2011: Danish Medical Bulletin
https://www.readbyqxmd.com/read/18486439/correlation-between-virulence-factors-and-in-vitro-biofilm-formation-by-escherichia-coli-strains
#7
Plínio Naves, Gema del Prado, Lorena Huelves, Matilde Gracia, Vicente Ruiz, Jorge Blanco, Ghizlane Dahbi, Miguel Blanco, María del Carmen Ponte, Francisco Soriano
The ability of 15 Escherichia coli strains to form biofilms on polystirene plates was studied. The strains were serotyped, and their phenotypic expression of surface virulence factors (VFs), and antibiotic susceptibility was also determined. Moreover, 30 VFs-associated genes were analysed, including 15 adhesins (papC, papG and its three alleles, sfa/focDE, sfaS, focG, afa/draBC, iha, bmaE, gafD, nfaE, fimH, fimAvMT78, agn43, F9 fimbriae and type 3 fimbriae-encoding gene clusters), four toxins (hlyA, cnf1, sat and tsh), four siderophore (iron, fyuA, iutA and iucD), five proctetins/invasion-encoding genes (kpsM II, kpsMT III, K1 kps variant- neuC, traT and ibeA), and the pathogenicity island malX and cvaC...
August 2008: Microbial Pathogenesis
https://www.readbyqxmd.com/read/17981835/virulence-factors-in-escherichia-coli-with-ctx-m-15-and-other-extended-spectrum-beta-lactamases-in-the-uk
#8
E Karisik, M J Ellington, D M Livermore, N Woodford
OBJECTIVES: Multiresistant Escherichia coli with CTX-M-15 extended-spectrum beta-lactamase (ESBL) are widespread in the UK. We examined their phylogenetic groups and virulence factors. METHODS: Clinical E. coli isolates (n = 114), collected between 2003 and 2006, were phylogenetically grouped and screened by PCR for 33 virulence factor genes. They included representatives of the five major UK epidemic E. coli strains with CTX-M-15 enzyme, as well as non-clonal isolates with CTX-M or other types of ESBLs...
January 2008: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/15632421/influence-of-the-age-and-sex-of-human-hosts-on-the-distribution-of-escherichia-coli-ecor-groups-and-virulence-traits
#9
David M Gordon, Steven E Stern, Peter J Collignon
Escherichia coli were isolated from the faeces of 266 individuals living in the Canberra region of Australia. The isolates were characterized for their ECOR group membership (A, B1, B2 or D) and for the presence of 29 virulence-associated traits. Overall, 19.5 % of the strains were members of group A, 12.4 % B1, 45.1 % B2 and 22.9 % D. The frequency with which strains belonging to the four ECOR groups were observed varied with the age and sex of the hosts from which they were isolated. In males, the probability of isolating A or D strains increased with host age, whilst the probability of detecting a group B2 strain declined...
January 2005: Microbiology
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