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proteus mirabilis in urine

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https://www.readbyqxmd.com/read/29138084/determination-immunogenic-property-of-truncated-mrph-flic-as-a-vaccine-candidate-against-urinary-tract-infections-caused-by-proteus-mirabilis
#1
Zakaria Bameri, Mohammad Reza Asadi Karam, Mehri Habibi, Parastoo Ehsani, Saeid Bouzari
Proteus mirabilis is common cause of urinary tract infections (UTIs) especially in complicated UTIs which are resistant to antibiotic therapy, Consequently, an ideal vaccine is inevitably required. The N-terminal domain of MrpH (Truncated form of MrpH) lies between the most critical antigens of P. mirabilis to consider as vaccine candidate. FliC of Salmonella typhimurium induces several pathways of immunity system, which leads to produce antibody and cytokines. In this study, adjuvant properties of FliC and efficacy of truncated MrpH as important antigen, in tMrpH...
November 11, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29111434/empiric-treatment-of-lower-urinary-tract-infections-in-the-face-of-spreading-multi-drug-resistance-in-vitro-study-of-nitroxoline-effectiveness
#2
A Sobke, O Makarewicz, M Baier, C Bär, W Pfister, S G Gatermann, M W Pletz, C Forstner
The spread of antimicrobial resistance challenges the empiric treatment in urinary tract infections (UTI). Among others, nitrofurantoin is recommended for first line treatment, but acceptance among clinicians is limited due to chronic nitrofurantoin-induced lung toxicity and insufficient coverage of Enterobacteriaceae other than Escherichia coli. Nitroxoline seems to be an alternative to nitrofurantoin due to its favourable safety profile but data on its current in vitro susceptibility are sparse. In this study susceptibility to nitroxoline was tested against 3,012 urinary clinical isolates (including multidrug-resistant bacteria and Candida spp...
October 27, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/29032522/comparative-characteristic-of-antimicrobial-resistance-in-geriatric-hospital-a-retrospective-cohort-study
#3
G Goltsman, E H Mizrahi, A Leibovitz, G Gal, O Gorelik, E Lubart
BACKGROUND AND AIMS: To examine antimicrobial resistance of commonly isolated pathogens in elderly hospitalized patients. METHODS: Data regarding all clinically significant isolates from blood and urine cultures of patients admitted to a multilevel geriatric hospital during March 2015 to April 2016 were collected. Antimicrobial susceptibility testing was performed according to Clinical and Laboratory Standard Institute guidelines. RESULTS: Escherichia coli, Proteus mirabilis, and Klebsiella pneumoniae were the most common isolates, with proportions of extended spectrum beta-lactamase positivity of 60, 40, and 61% respectively...
October 14, 2017: Aging Clinical and Experimental Research
https://www.readbyqxmd.com/read/29028588/formation-of-struvite-urinary-stones-and-approaches-towards-the-inhibition-a-review
#4
REVIEW
Poppy Das, Gaurav Gupta, Vinodhini Velu, Rajendra Awasthi, Kamal Dua, Himaja Malipeddi
BACKGROUND: Struvite is one of the most common urinary/kidney stones, composed of magnesium ammonium phosphate (MgNHPO4·H2O). They are also termed as infection stones as these are associated with urinary tract infections. Numerous studies have been carried out to examine the growth and inhibition of struvite stones. OBJECTIVE: This review summarizes various reports on the factors responsible for inducing struvite stones in the kidney and gives a detailed account of studies on inhibition of growth of struvite crystals...
October 10, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28939900/fluoxetine-and-thioridazine-inhibit-efflux-and-attenuate-crystalline-biofilm-formation-by-proteus-mirabilis
#5
Jonathan Nzakizwanayo, Paola Scavone, Shirin Jamshidi, Joseph A Hawthorne, Harriet Pelling, Cinzia Dedi, Jonathan P Salvage, Charlotte K Hind, Fergus M Guppy, Lara M Barnes, Bhavik A Patel, Khondaker M Rahman, Mark J Sutton, Brian V Jones
Proteus mirabilis forms extensive crystalline biofilms on indwelling urethral catheters that block urine flow and lead to serious clinical complications. The Bcr/CflA efflux system has previously been identified as important for development of P. mirabilis crystalline biofilms, highlighting the potential for efflux pump inhibitors (EPIs) to control catheter blockage. Here we evaluate the potential for drugs already used in human medicine (fluoxetine and thioridazine) to act as EPIs in P. mirabilis, and control crystalline biofilm formation...
September 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28922100/frequency-and-antibiotic-resistance-of-bacteria-implicated-in-community-urinary-tract-infections-in-north-aveiro-between-2011-and-2014
#6
Tânia Costa, Inês Linhares, Ricardo Ferreira, Jasmin Neves, Adelaide Almeida
AIMS: The present study aims to evaluate the predominance of uropathogens responsible for urinary tract infection (UTI) and determine their resistance patterns, to assess if the recommended empirical treatment is appropriate for the studied population. Samples were collected in Aveiro (Portugal) from an ambulatory service between June 2011 and June 2014. RESULTS: From the 4,270 positive urine samples for UTI, 3,561 (83%) were from women and only 709 (17%) were from men...
September 18, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/28827106/evaluation-of-biofilm-induced-urinary-infection-stone-formation-in-a-novel-laboratory-model-system
#7
Trace Hobbs, Logan N Schultz, Ellen G Lauchnor, Robin Gerlach, Dirk Lange
PURPOSE: Infection stones, which comprise approximately 15% of all urinary tract stones, are induced by infection with urease-positive pathogens. The bacteria in the stone matrix present significant treatment impediments compared to metabolic kidney stones. While much is known about how urinary composition regulates metabolic stone formation, there is a general lack of knowledge of which urinary factors regulate the rate of infection stone formation. Unfortunately more in-depth research into infection stones is limited by the lack of suitable models for real-time study of bacterial biofilm formation and stone formation under varying conditions...
August 19, 2017: Journal of Urology
https://www.readbyqxmd.com/read/28804662/fungal-bezoar-a-rare-cause-of-ureteral-obstruction
#8
Nabil Zeineddine, Wissam Mansour, Sandy El Bitar, Marco Campitelli, Neville Mobarakai
A 52-year-old male, with diabetes mellitus and alcoholic liver disease, presented to the Emergency Room for right flank pain of 3 days' duration, associated with dysuria. Physical examination revealed right flank tenderness with fever and hypotension; laboratory findings showed acute kidney injury and large blood and leucocytes in the urine. A CT abdomen and pelvis showed hydronephrosis of the right collecting system of a horseshoe kidney with air and hyperdense debris in the renal pelvis. Patient was treated for multisensitive Proteus mirabilis emphysematous pyelonephritis, and a right nephrostomy tube was inserted...
2017: Case Reports in Infectious Diseases
https://www.readbyqxmd.com/read/28621642/spectrum-and-antibiotic-resistance-of-uropathogens-between-2004-and-2015-in-a-tertiary-care-hospital-in-hungary
#9
András Magyar, Béla Köves, Károly Nagy, András Dobák, Vinodh Kumar Adithyaa Arthanareeswaran, Péter Bálint, Florian Wagenlehner, Péter Tenke
PURPOSE: Surveillance of the bacterial spectrum and antibiotic-resistance patterns of locally occurring uropathogens is essential to serve as a basis for empirical treatment of urinary tract infections (UTIs), as antibiotic-resistance rates may vary geographically with significant differences between countries and regions, and with time. METHODOLOGY: We retrospectively analysed all urine samples taken in the department of urology in a tertiary care hospital in Hungary from January 2004 to December 2015...
June 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28612707/genetic-characteristic-of-class-1-integrons-in-proteus-mirabilis-isolates-from-urine-samples
#10
Chih-Ming Chen, Chih-Ho Lai, Hwa-Jene Wu, Lii-Tzu Wu
BACKGROUND: Proteus mirabilis is an opportunistic pathogen, commonly associated with complicated urinary tract infections (UTIs). UTIs caused by multidrug-resistant Proteus mirabilis have increased worldwide. Multidrug-resistance of Gram-negative enteric bacteria is usually associated with class 1 integrons. PURPOSES: To investigate the prevalence and characterize gene cassettes of class 1 integrons in multidrug-resistant P. mirabilis Methods: From 2006 to 2008, 314 P...
June 2017: BioMedicine
https://www.readbyqxmd.com/read/28558707/effect-of-the-2014-clinical-and-laboratory-standards-institute-urine-specific-breakpoints-on-cefazolin-susceptibility-rates-at-a-community-teaching-hospital
#11
Daniel B Chastain, Ijang Ngando, Christopher M Bland, Carlos Franco-Paredes, W Anthony Hawkins
BACKGROUND: Enterobacteriaceae, which include Escherichia coli, Klebsiella pneumoniae, and Proteus mirabilis, are identified as the infectious etiology in the majority of urinary tract infections (UTIs) in community hospitals across the United States. The minimum inhibitory concentration (MIC) is a useful tool when choosing an appropriate antibacterial agent. Recent changes to the 2014 Clinical and Laboratory Standards Institute (CLSI) guidelines included reporting a urine-specific cefazolin breakpoint for enterobacteriaceae (susceptible ≤16 mcg/mL)...
May 30, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28497048/antimicrobial-resistance-patterns-in-women-with-positive-urine-culture-does-menopausal-status-make-a-significant-difference
#12
Pawel Miotla, Katarzyna Romanek-Piva, Michal Bogusiewicz, Ewa Markut-Miotla, Aneta Adamiak, Andrzej Wróbel, Małgorzata Zebrowska, Sara Wawrysiuk, Katarzyna Mendyk, Ewa Rechberger, Agata Jakubczak, Tomasz Rechberger
Aim. Urinary tract infection (UTI) is considered one of the most common bacterial infections in women. The aim of this study was to investigate the types of uropathogens present, as well as the degree of antimicrobial drug resistance seen among premenopausal (n = 2748) and postmenopausal (n = 1705) women with uncomplicated UTI. Methods. Urinary samples (n = 4453) collected from women with UTI were analyzed in terms of uropathogens present. These were considered as positive if bacterial growth was ≥10(5) colony forming units (CFUs)/mL...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28470147/assessment-of-urinary-pharmacokinetics-and-pharmacodynamics-of-orbifloxacin-in-healthy-dogs-with-ex-vivo-modelling
#13
Takae Shimizu, Kazuki Harada, Saki Manabe, Taku Tsukamoto, Norihiko Ito, Yoshiaki Hikasa
PURPOSE: The aim of this study was to investigate the urinary pharmacokinetics (PK) of orbifloxacin (OBFX) administered at 5 mg kg-1 in six healthy dogs. A further aim was to use an ex vivo model to evaluate the urinary PK and pharmacodynamics (PD) of OBFX to determine its urinary bactericidal titre (UBT), which represents the maximal dilution of urine allowing bactericidal activity. METHODOLOGY: Fourteen urinary tract infection (UTI) pathogenic strains of five bacterial species (Escherichia coli, Pseudomonas aeruginosa, Klebsiella pneumoniae, Proteus mirabilis and Staphylococcuspseudintermedius) were used...
May 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28408060/bacterial-epidemiology-and-antimicrobial-resistance-profiles-of-urinary-specimens-of-the-elderly
#14
F Gravey, G Loggia, A de La Blanchardière, V Cattoir
OBJECTIVE: Although urinary tract infections are the second leading cause of infections among patients aged above 65 years, data on bacterial epidemiology of urinary specimens in these patients is scarce. Our aim was to describe the main bacterial species found at significant levels in urine specimens of the elderly and to determine their antimicrobial resistance profiles. METHODS: From October 2012 to October 2015, all urinary specimens (catheter-related or not) received at the laboratory of microbiology of the university hospital of Caen (France) were retrospectively studied...
April 10, 2017: Médecine et Maladies Infectieuses
https://www.readbyqxmd.com/read/28390962/in-vitro-activity-of-fosfomycin-trometamol-and-other-oral-antibiotics-against-multidrug-resistant-uropathogens
#15
Maria Lina Mezzatesta, Giulia La Rosa, Gaetano Maugeri, Tiziana Zingali, Carla Caio, Andrea Novelli, Stefania Stefani
Clinical midstream and urinary catheter isolates (n = 106) of extended-spectrum β-lactamase (ESBL)-positive Escherichia coli, Klebsiella pneumoniae carbapenemase (KPC)-producing Klebsiella pneumoniae, Proteus mirabilis and meticillin-resistant Staphylococcus saprophyticus were tested against fosfomycin using the agar dilution method, the broth microdilution method and the gradient test described by the Clinical and Laboratory Standards Institute. Nitrofurantoin, co-trimoxazole, amoxicillin/clavulanic acid, cefuroxime, levofloxacin and ciprofloxacin were tested using the gradient test alone...
June 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28348778/veb-1-extended-spectrum-%C3%AE-lactamase-producing-multidrug-resistant-proteus-mirabilis-sepsis-outbreak-in-a-neonatal-intensive-care-unit-in-india-clinical-and-diagnostic-implications
#16
Sarika Jain, Rajni Gaind, Charu Kothari, Rachna Sehgal, A Shamweel, S S Thukral, Harish K Chellani
INTRODUCTION: Extended-spectrum β-lactamase (ESBL)-producing Enterobacteriaceae, multidrug-resistant (MDR) pathogens, are increasingly implicated in nosocomial outbreaksworldwide, particularly in neonatal intensive care units (NICUs). Proteus mirabilis is an uncommon nosocomial pathogen causing sepsis in neonates. CASE PRESENTATION: We report an outbreak of ESBL-positive MDR P. mirabilis sepsis involving five babies within 10 days in a NICU, which was promptly detected and managed...
August 2016: JMM Case Reports
https://www.readbyqxmd.com/read/28299769/the-effect-of-urinary-catheters-on-microbial-biofilms-and-catheter-associated-urinary-tract-infections
#17
Sahra Kirmusaoglu, Seyhun Yurdugül, Ahmet Metin, Suphi Vehid
PURPOSE: The aims of this study were to determine relationship between biofilm producer microorganisms attached to urinary catheters (UCs) and urinary catheter-associated urinary tract infections (CAUTIs), to determine the rate of CAUTI development and the relationship between CAUTI and catheterization period in catheterized patients. MATERIALS AND METHODS: Urinary catheters from 143 inpatients who were hospitalized in Abant Izzet Baysal University Hospital Urinary Service, and urine samples of these patients before and after catheterization of urinarycatheter were collected...
March 16, 2017: Urology Journal
https://www.readbyqxmd.com/read/28239050/necrotizing-suppurative-nephritis-in-a-japanese-black-feedlot-steer-due-to-proteus-mirabilis-infection
#18
Tadatsugu Abe, Ayako Iizuka, Hirokazu Kojima, Kumiko Kimura, Tomoyuki Shibahara, Makoto Haritani
A Japanese black feedlot steer suddenly died after exhibiting astasia and cramping of the extremities. Necropsy of the animal revealed that the right kidney was enlarged and pale with severe nephrolithiasis. The urinary bladder displayed mucosal hemorrhage. Upon bacteriological investigation, Proteus mirabilis was isolated from the liver, spleen, right kidney, lungs and urine. Histopathological examination revealed necrotizing suppurative nephritis with the presence of numerous gram-negative bacilli and fibrinous suppurative cystitis with no bacilli...
April 5, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28150092/antimicrobial-activity-study-of-triclosan-loaded-wbpu-on-proteus-mirabilis-in-vitro
#19
Ye Tian, Zhongyu Jian, Jianzhong Wang, Wei He, Qinyu Liu, Kunjie Wang, Hong Li, Hong Tan
OBJECTIVES: To evaluate the antimicrobial activity study of triclosan-loaded waterborne polyurethanes (WBPU) on Proteus mirabilis in vitro. MATERIALS AND METHODS: Inhibition zone assays on petri plates with triclosan-loaded WBPU samples were used to test its antimicrobial activity on Proteus mirabilis. Models of the catheterized bladder supplied with artificial urine infected with Proteus mirabilis were employed to confirm the antimicrobial activity of triclosan-loaded WBPU...
April 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28031261/copper-is-a-host-effector-mobilized-to-urine-during-urinary-tract-infection-to-impair-bacterial-colonization
#20
Amanda N Hyre, Kylie Kavanagh, Nancy D Kock, George L Donati, Sargurunathan Subashchandrabose
Urinary tract infection (UTI) is a major global infectious disease affecting millions of people annually. Human urinary copper (Cu) content is elevated during UTI caused by uropathogenic Escherichia coli (UPEC). UPEC upregulates the expression of Cu efflux genes during clinical UTI in patients as an adaptive response to host-derived Cu. Whether Cu is mobilized to urine as a host response to UTI and its role in protection against UTI remain unresolved. To address these questions, we tested the hypothesis that Cu is a host effector mobilized to urine during UTI to limit bacterial growth...
March 2017: Infection and Immunity
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