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Annals of Clinical Microbiology and Antimicrobials

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https://www.readbyqxmd.com/read/28335779/activity-of-amp2041-against-human-and-animal-multidrug-resistant-pseudomonas-aeruginosa-clinical-isolates
#1
Clotilde Silvia Cabassi, Andrea Sala, Davide Santospirito, Giovanni Loris Alborali, Edoardo Carretto, Giovanni Ghibaudo, Simone Taddei
BACKGROUND: Antimicrobial resistance is a growing threat to public health. Pseudomonas aeruginosa is a relevant pathogen causing human and animal infections, frequently displaying high levels of resistance to commonly used antimicrobials. The increasing difficulty to develop new effective antibiotics have discouraged investment in this area and only a few new antibiotics are currently under development. An approach to overcome antibiotic resistance could be based on antimicrobial peptides since they offer advantages over currently used microbicides...
March 23, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28330484/antibiotic-resistance-and-biofilm-production-among-the-strains-of-staphylococcus-aureus-isolated-from-pus-wound-swab-samples-in-a-tertiary-care-hospital-in-nepal
#2
Ankit Belbase, Narayan Dutt Pant, Krishus Nepal, Bibhusan Neupane, Rikesh Baidhya, Reena Baidya, Binod Lekhak
BACKGROUND: The increasing drug resistance along with inducible clindamycin resistance, methicillin resistance and biofilm production among the strains of Staphylococcus aureus are present as the serious problems to the successful treatment of the infections caused by S. aureus. So, the main objectives of this study were to determine the antimicrobial susceptibility patterns along with the rates of inducible clindamycin resistance, methicillin resistance and biofilm production among the strains of S...
March 23, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28330478/higher-atypical-enteropathogenic-escherichia-coli-a-epec-bacterial-loads-in-children-with-diarrhea-are-associated-with-pcr-detection-of-the-ehec-factor-for-adherence-1-lymphocyte-inhibitory-factor-a-efa1-lifa-gene
#3
Robert Slinger, Kimberley Lau, Michael Slinger, Ioana Moldovan, Francis Chan
BACKGROUND: Typical enteropathogenic Escherichia coli (t-EPEC) are known to cause diarrhea in children but it is uncertain whether atypical EPEC (a-EPEC) do, since a-EPEC lack the bundle-forming pilus (bfp) gene that encodes a key adherence factor in t-EPEC. In culture-based studies of a-EPEC, the presence of another adherence factor, called EHEC factor for adherence/lymphocyte activation inhibitor (efa1/lifA), was strongly associated with diarrhea. Since a-EPEC culture is not feasible in clinical laboratories, we designed an efa1/lifA quantitative PCR assay and examined whether the presence of efa1/lifA was associated with higher a-EPEC bacterial loads in pediatric diarrheal stool samples...
March 23, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28327156/mycobacterium-goodii-endocarditis-following-mitral-valve-ring-annuloplasty
#4
Rohan B Parikh, Matthew Grant
BACKGROUND: Mycobacterium goodii is an infrequent human pathogen which has been implicated in prosthesis related infections and penetrating injuries. It is often initially misidentified as a gram-positive rod by clinical microbiologic laboratories and should be considered in the differential diagnosis. CASE PRESENTATION: We describe here the second reported case of M. goodii endocarditis. Species level identification was performed by 16S rDNA (ribosomal deoxyribonucleic acid) gene sequencing...
March 21, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28320396/occurrence-of-bla-dha-1-mediated-cephalosporin-resistance-in-escherichia-coli-and-their-transcriptional-response-against-cephalosporin-stress-a-report-from-india
#5
Birson Ingti, Deepjyoti Paul, Anand Prakash Maurya, Debajyoti Bora, Debadatta Dhar Chanda, Atanu Chakravarty, Amitabha Bhattacharjee
BACKGROUND: Treatment alternatives for DHA-1 harboring strains are challenging as it confers resistance to broad spectrum cephalosporins and may further limit treatment option when expressed at higher levels. Therefore, this study was designed to know the prevalence of DHA genes and analyse the transcription level of DHA-1 against different β-lactam stress. METHODS: Screening of AmpC β-lactamase phenotypically by modified three dimensional extract method followed by Antimicrobial Susceptibility and MIC determination...
March 21, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28288638/aggregatibacter-actinomycetemcomitans-osteomyelitis-in-a-12%C3%A2-year-old-boy-case-report-emphasizing-the-importance-of-tissue-culture-and-review-of-literature
#6
REVIEW
Ketaki Sharma, Poonam Mudgil, John S Whitehall, Iain Gosbell
BACKGROUND: Aggregatibacter actinomycetemcomitans most commonly causes periodontitis but has been reported to infect heart valves, soft tissue, brain and lungs, and distal bones. Osteomyelitis distal to the jaw is rarely described. CASE PRESENTATION: We report an unusual and rare case of chronic osteomyelitis caused by A. actinomycetemcomitans in the toe of a paediatric patient, and review the available literature. The infection was managed with intravenous antibiotics followed by oral antibiotics...
March 14, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28279173/a-super-infection-in-the-cornea-caused-by-stemphylium-acremonium-and-%C3%AE-streptococcus
#7
Fumika Hotta, Hiroshi Eguchi, Keiko Nishimura, Masahiro Kogiso, Mayumi Ishimaru, Shunji Kusaka, Yoshikazu Shimomura, Takashi Yaguchi
BACKGROUND: Polymicrobial keratitis with fungus and bacteria can lead to blindness and is challenging to treat. Here, we introduce a case of fungal keratitis caused by two different strains in addition to definite bacterial super-infection caused by an α-Streptococcus sp., and describe the importance of microscopic examination. CASE PRESENTATION: A 74-year-old woman, who had a past history of infection with leprosy, presented with conjunctival hyperaemia, pain, and corneal opacity in her right eye...
March 9, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28270154/pandemics-pathogenicity-and-changing-molecular-epidemiology-of-cholera-in-the-era-of-global-warming
#8
REVIEW
Fazle Rabbi Chowdhury, Zannatun Nur, Nazia Hassan, Lorenz von Seidlein, Susanna Dunachie
BACKGROUND: Vibrio cholerae, a Gram-negative, non-spore forming curved rod is found in diverse aquatic ecosystems around the planet. It is classified according to its major surface antigen into around 206 serogroups, of which O1 and O139 cause epidemic cholera. A recent spatial modelling technique estimated that around 2.86 million cholera cases occur globally every year, and of them approximately 95,000 die. About 1.3 billion people are currently at risk of infection from cholera. Meta-analysis and mathematical modelling have demonstrated that due to global warming the burden of vector-borne diseases like malaria, leishmaniasis, meningococcal meningitis, viral encephalitis, dengue and chikungunya will increase in the coming years in the tropics and beyond...
March 7, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28264683/cryptococcal-meningoencephalitis-in-hiv-aids-when-to-start-antiretroviral-therapy
#9
EDITORIAL
Carlos Franco-Paredes, Daniel B Chastain, Alfonso J Rodriguez-Morales, Luis A Marcos
No abstract text is available yet for this article.
March 6, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28253917/brucella-melitensis-virb12-recombinant-protein-is-a-potential-marker-for-serodiagnosis-of-human-brucellosis
#10
Shiva Mirkalantari, Amir-Hassan Zarnani, Mahboobeh Nazari, Gholam Reza Irajian, Nour Amirmozafari
BACKGROUND: The numerous drawbacks of current serological tests for diagnosis of brucellosis which mainly results from cross reactivity with LPS from other gram-negative bacteria have generated an increasing interest to find more specific non-LPS antigens. Previous studies had indicated that Brucella VirB12 protein, a cell surface protein and component of type IV secretion system, induces antibody response during animal infection. However, this protein has not yet been tested as a serological diagnostic marker in human brucellosis...
March 3, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28231795/stryphnodendron-adstringens-and-purified-tannin-on-pythium-insidiosum-in-vitro-and-in-vivo-studies
#11
Rodrigo Trolezi, Juliana Maziero Azanha, Natália Rodrigues Paschoal, Jéssica Luana Chechi, Marcelo José Dias Silva, Viciany Eric Fabris, Wagner Vilegas, Ramon Kaneno, Ary Fernandes Junior, Sandra de Moraes Gimenes Bosco
BACKGROUND: Pythium insidiosum is the etiological agent of pythiosis, an emerging life-threatening infectious disease in tropical and subtropical regions. The pathogen is a fungus-like organism resistant to antifungal therapy, for this reason, most cases need extensive surgical debridments as treatment, but depending on the size and anatomical region of the lesion, such approach is unfeasible. We investigate the fungicidal effect and toxicity of crude bark extract of Stryphnodendron adstringens and commercially available tannin on Pythium insidiosum both in vitro and in vivo...
February 23, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28202022/hematologic-manifestations-of-babesiosis
#12
REVIEW
Tamer Akel, Neville Mobarakai
BACKGROUND: Babesiosis, a zoonotic parasitic infection transmitted by the Ixodes tick, has become an emerging health problem in humans that is attracting attention worldwide. Most cases of human babesiosis are reported in the United States and Europe. The disease is caused by the protozoa of the genus Babesia, which invade human erythrocytes and lyse them causing a febrile hemolytic anemia. The infection is usually asymptomatic or self-limited in the immunocompetent host, or follows a persistent, relapsing, and/or life threatening course with multi-organ failure, mainly in the splenectomized or immunosuppressed patients...
February 15, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28178984/bacteriological-water-quality-in-school-s-drinking-fountains-and-detection-antibiotic-resistance-genes
#13
Denize Gomes Freitas, Rassan Dyego Romão Silva, Luis Artur Mendes Bataus, Mônica Santiago Barbosa, Carla Afonso da Silva Bitencourt Braga, Lilian Carla Carneiro
The fecal coliform can contaminate water of human consumption causing problems to public health. Many of these microorganisms may contain plasmid and transfer them to other bacteria. This genetic material may confer selective advantages, among them resistance to antibiotics. The objectives of this study were to analyze the presence of fecal coliforms in water and at drinker surface, to identify the existence of plasmid, conducting studies of resistance to antibiotics, plasmid stability and capacity of bacterial conjugation...
February 8, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28137277/antimicrobial-resistance-in-coagulase-negative-staphylococci-from-nigerian-traditional-fermented-foods
#14
P T Fowoyo, S T Ogunbanwo
BACKGROUND: Coagulase-negative staphylococci have become increasingly recognized as the etiological agent of some infections. A significant characteristic of coagulase-negative staphylococci especially strains isolated from animals and clinical samples is their resistance to routinely used antibiotics although, resistant strains isolated from fermented foods have not been fully reported. METHODS: A total of two hundred and fifty-five CoNS isolates were subjected to antimicrobial susceptibility test using the disc diffusion technique...
January 31, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28100229/surveillance-of-life-long-antibiotics-a-review-of-antibiotic-prescribing-practices-in-an-australian-healthcare-network
#15
Jillian S Y Lau, Christopher Kiss, Erika Roberts, Kylie Horne, Tony M Korman, Ian Woolley
BACKGROUND: The rise of antimicrobial use in the twentieth century has significantly reduced morbidity due to infection, however it has also brought with it the rise of increasing resistance. Some patients are on prolonged, if not "life-long" course of antibiotics. The reasons for this are varied, and include non-infectious indications. We aimed to study the characteristics of this potential source of antibiotic resistance, by exploring the antibiotic dispensing practices and describing the population of patients on long-term antibiotic therapy...
January 18, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28095918/anti-staphylococcal-activity-resulting-from-epithelial-lining-fluid-elf-concentrations-of-amikacin-inhale-administered-via-the-pulmonary-drug-delivery-system
#16
Islam M Ghazi, Mordechai Grupper, David P Nicolau
BACKGROUND: Amikacin inhale (BAY41-6551), a unique drug-device combination of a specially formulated drug solution and a pulmonary drug delivery system device (AMK-I) is currently under phase III study as an adjunctive therapy to IV antibiotics for the treatment of Gram-negative pneumonia in mechanically ventilated patients. While the epidemiology of nosocomial pneumonia is predominated by Gram-negative pathogens such as Pseudomonas aeruginosa and the Enterobacteriaceae, Staphylococcus aureus is increasingly recognized as a pathogen of concern for these pulmonary based infections...
January 17, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28061852/the-occurrence-of-esbl-producing-escherichia-coli-carrying-aminoglycoside-resistance-genes-in-urinary-tract-infections-in-saudi-arabia
#17
Essam J Alyamani, Anamil M Khiyami, Rayan Y Booq, Majed A Majrashi, Fayez S Bahwerth, Elena Rechkina
BACKGROUND: The infection and prevalence of extended-spectrum β-lactamases (ESBLs) is a worldwide problem, and the presence of ESBLs varies between countries. In this study, we investigated the occurrence of plasmid-mediated ESBL/AmpC/carbapenemase/aminoglycoside resistance gene expression in Escherichia coli using phenotypic and genotypic techniques. METHODS: A total of 58 E. coli isolates were collected from hospitals in the city of Makkah and screened for the production of ESBL/AmpC/carbapenemase/aminoglycoside resistance genes...
January 6, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/27938381/assessment-of-antibiotic-resistance-in-klebsiella-pneumoniae-exposed-to-sequential-in-vitro-antibiotic-treatments
#18
Jeongjin Kim, Ara Jo, Ekachai Chukeatirote, Juhee Ahn
BACKGROUND: Bacteria treated with different classes of antibiotics exhibit changes in susceptibility to successive antibiotic treatments. This study was designed to evaluate the influence of sequential antibiotic treatments on the development of antibiotic resistance in Klebsiella pneumoniae associated with β-lactamase and efflux pump activities. METHODS: The antibiotic susceptibility, β-lactamase activity, and efflux activity were determined in K. pneumoniae grown at 37 °C by adding initial (0 h) and second antibiotics (8 or 12 h)...
December 9, 2016: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/27887603/genetic-elements-associated-with-antimicrobial-resistance-among-avian-pathogenic-escherichia-coli
#19
Amal Awad, Nagah Arafat, Mohamed Elhadidy
BACKGROUND: Avian-pathogenic Escherichia coli (APEC) are pathogenic strains of E. coli that are responsible for one of the most predominant bacterial disease affecting poultry worldwide called avian colibacillosis. This study describes the genetic determinants implicated in antimicrobial resistance among APEC isolated from different broiler farms in Egypt. METHODS: A total of 116 APEC were investigated by serotyping, antimicrobial resistance patterns to 10 antimicrobials, and the genetic mechanisms underlying the antimicrobial-resistant phenotypes...
November 25, 2016: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/27876059/a-prospective-observational-cohort-study-in-primary-care-practices-to-identify-factors-associated-with-treatment-failure-in-staphylococcus-aureus-skin-and-soft-tissue-infections
#20
Grace C Lee, Ronald G Hall, Natalie K Boyd, Steven D Dallas, Liem C Du, Lucina B Treviño, Sylvia B Treviño, Chad Retzloff, Kenneth A Lawson, James Wilson, Randall J Olsen, Yufeng Wang, Christopher R Frei
BACKGROUND: The incidence of outpatient visits for skin and soft tissue infections (SSTIs) has substantially increased over the last decade. The emergence of community-associated methicillin-resistant Staphylococcus aureus (CA-MRSA) has made the management of S. aureus SSTIs complex and challenging. The objective of this study was to identify risk factors contributing to treatment failures associated with community-associated S. aureus skin and soft tissue infections SSTIs. METHODS: This was a prospective, observational study among 14 primary care clinics within the South Texas Ambulatory Research Network...
November 22, 2016: Annals of Clinical Microbiology and Antimicrobials
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