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urinary tract pathogens

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https://www.readbyqxmd.com/read/28737838/improved-bacterial-identification-directly-from-urine-samples-with-matrix-assisted-laser-desorption-ionization-time-of-flight-mass-spectrometry
#1
Koichi Kitagawa, Katsumi Shigemura, Ken-Ichiro Onuma, Masako Nishida, Mayu Fujiwara, Saori Kobayashi, Mika Yamasaki, Tatsuya Nakamura, Fukashi Yamamichi, Toshiro Shirakawa, Issei Tokimatsu, Masato Fujisawa
BACKGROUND: Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) contributes to rapid identification of pathogens in the clinic but has not yet performed especially well for Gram-positive cocci (GPC) causing complicated urinary tract infection (UTI). The goal of this study was to investigate the possible clinical use of MALDI-TOF MS as a rapid method for bacterial identification directly from urine in complicated UTI. METHODS: MALDI-TOF MS was applied to urine samples gathered from 142 suspected complicated UTI patients in 2015-2017...
July 24, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28735999/results-of-real-time-multiplex-polymerase-chain-reaction-assay-in-renal-transplant-recipients-with-sterile-pyuria
#2
M Sarier, M Demir, S Goktas, I Duman, M Buyukkinaci, Y Yuksel, S Tekin, A H Yavuz, A Sengul
Urinary tract infections are a major cause of morbidity and hospitalization after renal transplantation. Patients treated with immunosuppressive drugs suffer not only from common uropathogens but also from opportunistic infections caused by unusual uropathogens. Sterile pyuria is associated with numerous infectious agents including viruses, fungi, and atypical or fastidious organisms. The objective of this study was to investigate the pathogens using real-time multiplex polymerase chain reaction (rtMPCR) assay in sterile pyuria of renal transplant recipients...
July 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28729240/empiric-antibiotic-use-and-susceptibility-in-infants-with-bacterial-infections-a-multicenter-retrospective-cohort-study
#3
Elana A Feldman, Russell J McCulloh, Angela L Myers, Paul L Aronson, Mark I Neuman, Miranda C Bradford, Elizabeth R Alpern, Frances Balamuth, Mercedes M Blackstone, Whitney L Browning, Katie Hayes, Rosalynne Korman, Rianna C Leazer, Lise E Nigrovic, Richard Marble, Emily Roben, Derek J Williams, Joel S Tieder
OBJECTIVES: To assess hospital differences in empirical antibiotic use, bacterial epidemiology, and antimicrobial susceptibility for common antibiotic regimens among young infants with urinary tract infection (UTI), bacteremia, or bacterial meningitis. METHODS: We reviewed medical records from infants <90 days old presenting to 8 US children's hospitals with UTI, bacteremia, or meningitis. We used the Pediatric Health Information System database to identify cases and empirical antibiotic use and medical record review to determine infection, pathogen, and antimicrobial susceptibility patterns...
July 20, 2017: Hospital Pediatrics
https://www.readbyqxmd.com/read/28723471/urinary-tract-infections-in-immunocompromised-patients-with-diabetes-chronic-kidney-disease-and-kidney-transplant
#4
REVIEW
Zafer Tandogdu, Tommaso Cai, Bela Koves, Florian Wagenlehner, Truls Erik Bjerklund-Johansen
CONTEXT: This paper provides a brief overview of urinary tract infections (UTIs) in immunocompromised patients from the perspective of a practicing urologist. OBJECTIVE: The primary objective was to provide an update on UTIs in immunocompromised patients. Diabetes mellitus (DM), chronic kidney disease, and kidney transplant (KT) are the most common clinical cases encountered by urologists. Diagnosis, management, and future research needs are summarised. EVIDENCE ACQUISITION: We conducted a nonsystematic review of the literature...
October 2016: European Urology Focus
https://www.readbyqxmd.com/read/28715352/commensal-bacterial-modulation-of-the-host-immune-response-to-ameliorate-pain-in-a-murine-model-of-chronic-prostatitis
#5
Stephen F Murphy, Anthony J Schaeffer, Joseph D Done, Marsha L Quick, Utkucan Acar, Praveen Thumbikat
The human commensal microflora plays an essential role in modulating the immune response to control homeostasis. Staphylococcus epidermidis, a commensal bacterium most commonly associated with the skin exerts such effects locally, modulating local immune responses during inflammation and preventing superinfection by pathogens such as Staphylococcus aureus. Although the prostate is considered by many to be sterile, multiple investigations have shown that small numbers of gram-positive bacterial species such as S...
August 2017: Pain
https://www.readbyqxmd.com/read/28712037/introduction-of-sample-tubes-with-sodium-azide-as-a-preservative-for-ethyl-glucuronide-in-urine
#6
Marc Luginbühl, Wolfgang Weinmann, Ali Al-Ahmad
Ethyl glucuronide (EtG) is a direct alcohol marker, which is widely used for clinical and forensic applications, mainly for abstinence control. However, the instability of EtG in urine against bacterial degradation or the post-collectional synthesis of EtG in contaminated samples may cause false interpretation of EtG results in urine samples. This study evaluates the potential of sodium azide in tubes used for urine collection to hinder degradation of ethyl glucuronide by bacterial metabolism taking place during growth of bacterial colonies...
July 15, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28711430/implementation-of-a-national-bundle-care-program-to-reduce-catheter-associated-urinary-tract-infection-in-high-risk-units-of-hospitals-in-taiwan
#7
Chih-Cheng Lai, Chun-Ming Lee, Hsiu-Tzy Chiang, Ching-Tzu Hung, Ying-Chun Chen, Li-Hsiang Su, Zhi-Yuan Shi, Jein-Wei Liu, Chang-Pan Liu, Min-Chi Lu, Yin-Ching Chuang, Wen-Chien Ko, Shu-Hui Tseng, Yen-Hsu Chen, Po-Ren Hsueh
BACKGROUND/PURPOSE: This study was intended to investigate the impact of implementation of catheter-associated urinary tract infection (CA-UTI) bundle care on the incidence of CA-UTI in high-risk units. METHODS: Thirteen high-risk units, including medical (n = 5), surgical (n = 3), cardiac intensive care units (n = 2), respiratory care centers (n = 2), and respiratory care ward (n = 1) were included in this quality-improvement project. This study was divided into pre-intervention phase (from January 1 to July 31) and post-intervention phase (from August 1 to October 31) in 2013...
June 26, 2017: Journal of Microbiology, Immunology, and Infection, Wei Mian Yu Gan Ran za Zhi
https://www.readbyqxmd.com/read/28705846/a-novel-case-of-raoultella-planticola-osteomyelitis-and-epidural-abscess
#8
Rogin Subedi, Ryan Dean, William Li, Amit Dhamoon
A spinal epidural abscess is the collection of pus in the epidural space, and is a potentially life-threatening condition that requires early detection and prompt management. Almost two-thirds of cases are caused by Staphylococcus aureus, followed by Gram-negative bacilli which account for approximately 16% of cases. Raoultella planticola is an emerging pathogen, and is an extremely rare cause of invasive infection in humans. It has been reported to cause urinary tract infections, pneumonia, bacteraemia, cholangitis, cholecystitis, conjunctivitis and soft tissue infections...
July 13, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28705671/antibiotic-resistance-in-west-africa-a-systematic-review-and-meta-analysis
#9
REVIEW
Kerlly J Bernabé, Céline Langendorf, Nathan Ford, Jean-Baptiste Ronat, Richard A Murphy
BACKGROUND: Growing data suggest that antibiotic-resistant bacterial infections are common in low and middle-income countries. This review summarizes the microbiology of key bacterial syndromes encountered in West Africa and estimates the prevalence of antimicrobial resistance (AMR) that could compromise first-line empirical treatment. METHODS: We systematically searched for studies reporting on the epidemiology of infection and AMR in West Africa. Within each syndrome, the pooled proportion and 95% confidence intervals were calculated for each pathogen-antibiotic pair, using random effects models...
July 10, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28705666/in-vitro-activity-of-ceftolozane-tazobactam-against-pseudomonas-aeruginosa-and-enterobacteriaceae-isolates-recovered-from-hospitalized-patients-in-germany
#10
Harald Seifert, Barbara Körber-Irrgang, Michael Kresken
To evaluate the activity of ceftolozane/tazobactam in comparison with other broad-spectrum antimicrobials against Pseudomonas aeruginosa and Enterobacteriaceae, 497 non-duplicate P. aeruginosa and 802 Enterobacteriaceae clinical isolates were consecutively collected during the period from September 2014 to April 2015 from patients in Germany with bloodstream, lower respiratory tract, intraabdominal or urinary tract infections. Antimicrobial susceptibility testing was performed by broth microdilution. Results were interpreted according to EUCAST criteria...
July 10, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28689873/chitosans-inhibit-the-growth-and-the-adhesion-of-klebsiella-pneumonia-and-escherichia-coli-clinical-isolates-on-urinary-catheters
#11
Raffaella Campana, Luca Casettari, Eleonora Ciandrini, Lisbeth Illum, Wally Baffone
OBJECTIVE: The aim of this study was to determine the antimicrobial activity of different chitosans (CS) against typical colonizing pathogens of the urinary tract and to assess their efficacy against bacterial adhesion and the subsequent biofilm formation on urinary catheters. METHODS: The antimicrobial activity of high and low molecular weight CS (50 and 150 kDa) at pH 5.0 and 6.0 was tested against Klebsiella pneumoniae and Escherichia coli clinical isolates by time-killing studies...
July 6, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28683780/bacterial-agents-and-antibiotic-resistance-profiles-of-infections-from-different-sites-that-occurred-among-patients-at-debre-markos-referral-hospital-ethiopia-a-cross-sectional-study
#12
Wondemagegn Mulu, Bayeh Abera, Mulat Yimer, Tadesse Hailu, Haimanot Ayele, Dereje Abate
BACKGROUND: In developing countries like Ethiopia, infections with antibiotic resistant bacteria become a real threat. Hence, monitoring of local level antimicrobial resistance profile is indispensable to contain the spread of drug resistant bacteria and intervene poor awareness on antimicrobial resistance. Therefore, this study aimed at determining bacterial and antibiotic resistance profiles of infections from different sites that occurred among patients. METHODS: Retrospective data recorded were analyzed on culture and drug susceptibility test results at Debre Markos Referral Hospital which were performed from 2011 to 2014...
July 6, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28671990/evaluation-of-escherichia-coli-isolates-from-healthy-chickens-to-determine-their-potential-risk-to-poultry-and-human-health
#13
Zachary R Stromberg, James R Johnson, John M Fairbrother, Jacquelyn Kilbourne, Angelica Van Goor, Roy Curtiss, Melha Mellata
Extraintestinal pathogenic Escherichia coli (ExPEC) strains are important pathogens that cause diverse diseases in humans and poultry. Some E. coli isolates from chicken feces contain ExPEC-associated virulence genes, so appear potentially pathogenic; they conceivably could be transmitted to humans through handling and/or consumption of contaminated meat. However, the actual extraintestinal virulence potential of chicken-source fecal E. coli is poorly understood. Here, we assessed whether fecal E. coli isolates from healthy production chickens could cause diseases in a chicken model of avian colibacillosis and three rodent models of ExPEC-associated human infections...
2017: PloS One
https://www.readbyqxmd.com/read/28671080/targeted-surveillance-and-infection-related-risk-factors-of-nosocomial-infection-in-patients-after-neurosurgical-operation
#14
Lixi Jiang, Linping Guo, Rentao Li, Suzhen Wang
The purpose of this study was to investigate the risk factors of nosocomial infection in patients after neurosurgical operations, so as to provide reasonable, effective preventative measures in the future. A total of 1,600 patients with brain tumors, hydrocephalus, craniocerebral trauma and vascular disease treated in the neurosurgery room were chosen for targeted surveillance; and through analysis on the clinical data of patients, the incidence of nosocomial infection, the site of infection and the distribution of pathogens, we investigated the infection-related risk factors...
May 2017: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28670302/prevalence-and-genetic-diversity-of-enterococcus-faecalis-isolates-from-mineral-water-and-spring-water-in-china
#15
Lei Wei, Qingping Wu, Jumei Zhang, Weipeng Guo, Moutong Chen, Liang Xue, Juan Wang, Lianying Ma
Enterococcus faecalis is an important opportunistic pathogen which is frequently detected in mineral water and spring water for human consumption and causes human urinary tract infections, endocarditis and neonatal sepsis. The aim of this study was to determine the prevalence, virulence genes, antimicrobial resistance and genetic diversity of E. faecalis from mineral water and spring water in China. Of 314 water samples collected from January 2013 to January 2014, 48 samples (15.3%) were contaminated E. faecalis...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28668680/antimicrobial-activities-of-lcb10-0200-a-novel-siderophore-cephalosporin-against-the-clinical-isolates-of-pseudomonas-aeruginosa-and-other-pathogens
#16
Sang-Hun Oh, Hee-Soo Park, Hye-Shin Kim, Jeong-Yul Yun, Kyuman Oh, Young-Lag Cho, Jin-Hwan Kwak
Infections caused by multidrug-resistant bacteria, including Pseudomonas aeruginosa, are threating public health worldwide. Therefore, a novel antibacterial agent is needed for treating these infections. Here, we investigated the in vitro and in vivo activities of a novel siderophore-conjugated cephalosporin LCB10-0200 against the clinical isolates of Gram-negative baeria, including multidrug-resistant P. aeruginosa. In vitro susceptibility to LCB10-0200 was assessed by performing a two-fold agar dilution method, as described by Clinical and Laboratory Standards Institute...
June 28, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28668171/emerging-nanotechnology-based-strategies-for-diagnosis-and-therapeutics-of-urinary-tract-infections-a-review
#17
REVIEW
M S Kumar, A P Das
At present, various diagnostic and therapeutic approaches are available for urinary tract infections. But, still the quest for development of more rapid, accurate and reliable approach is an unending process. The pathogens, especially uropathogens are adapting to new environments and antibiotics day by day rapidly. Therefore, urinary tract infections are evolving as hectic and difficult to eradicate, increasing the economic burden to the society. The technological advances should be able to compete the adaptability characteristics of microorganisms to combat their growth in new environments and thereby preventing their infections...
June 26, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/28652313/identification-and-characterization-of-klebsiella-pneumoniae-two-lpxl-lipid-a-late-acyltransferases-and-their-role-in-virulence
#18
Grant Mills, Amy Dumigan, Timothy Kidd, Laura Hobley, José A Bengoechea
Klebsiella pneumoniae causes a wide range of infections, from urinary tract infections to pneumonia. The lipopolysaccharide is a virulence factor of this pathogen, although there are gaps in our understanding of its biosynthesis. Here we report the characterization of K. pneumoniae LpxL which encodes one of the enzymes responsible for late secondary acylation of immature lipid A molecules. Analysis of the available K. pneumoniae genomes revealed that this pathogen encodes two orthologues of Escherichia coli LpxL...
June 26, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28641352/-do-general-surgeons-feel-adequately-prepared-for-the-complex-questions-associated-with-the-handling-of-multi-resistant-pathogens-results-of-the-mr2-survey
#19
Matthias May, Philipp J Spachmann, Steffen Lebentrau, Harald Schumacher, Christian Gilfrich, Hans-Martin Fritsche, Malte Vetterlein, Sabine Brookman-May, Martin Schostak, Florian M Wagenlehner, Maximilian Burger, Alexander Novotny, Robert Obermaier
Background At the present time, there is no evidence available as to the knowledge of general surgeons regarding multi-resistant pathogens (MRP) and the rational use of antibiotic medication (antibiotic stewardship/ABS) compared with physicians from other disciplines. Methods As part of the MR2 survey (Multiinstitutional Reconnaissance of practice with MultiResistant bacteria - a survey focussing on German hospitals), a questionnaire comprising 4 + 35 items was distributed to urologists, internists, gynaecologists and general surgeons in 18 hospitals...
June 2017: Zentralblatt Für Chirurgie
https://www.readbyqxmd.com/read/28638594/high-burden-of-antimicrobial-resistance-among-gram-negative-bacteria-causing-healthcare-associated-infections-in-a-critical-care-unit-of-nepal
#20
Narayan Prasad Parajuli, Subhash Prasad Acharya, Shyam Kumar Mishra, Keshab Parajuli, Basista Prasad Rijal, Bharat Mani Pokhrel
BACKGROUND: Healthcare associated infections (HCAI) and antimicrobial resistance are principal threats to the patients of intensive care units and are the major determining factors for patient outcome. They are associated with increased morbidity, mortality, excess hospitalization and financial costs. The present study is an attempt to investigate the spectrum and antimicrobial resistance of bacterial isolates involved in healthcare associated infections (HCAI) in the patients of a critical care unit at a tertiary care university hospital in Kathmandu, Nepal...
2017: Antimicrobial Resistance and Infection Control
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