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https://www.readbyqxmd.com/read/29352171/a-urine-dependent-human-urothelial-organoid-offers-a-potential-alternative-to-rodent-models-of-infection
#1
Harry Horsley, Dhanuson Dharmasena, James Malone-Lee, Jennifer L Rohn
Murine models describe a defined host/pathogen interaction for urinary tract infection, but human cell studies are scant. Although recent human urothelial organoid models are promising, none demonstrate long-term tolerance to urine, the natural substrate of the tissue and of the uropathogens that live there. We developed a novel human organoid from progenitor cells which demonstrates key structural hallmarks and biomarkers of the urothelium. After three weeks of transwell culture with 100% urine at the apical interface, the organoid stratified into multiple layers...
January 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29351876/vital-signs-analysis-algorithm-detects-inflammatory-response-in-premature-infants-with-late-onset-sepsis-and-necrotizing-enterocolitis
#2
Leena B Mithal, Ram Yogev, Hannah L Palac, Daniel Kaminsky, Ilan Gur, Karen K Mestan
BACKGROUND: Nonspecific clinical signs and suboptimal diagnostic tests limit accurate identification of late onset sepsis (LOS) and necrotizing enterocolitis (NEC) in premature infants, resulting in significant morbidity and antibiotic overuse. An infant's systemic inflammatory response may be identified earlier than clinical suspicion through analysis of multiple vital signs by a computerized algorithm (RALIS). AIM: To evaluate the revised RALIS algorithm for detection of LOS and NEC in preterm infants...
January 16, 2018: Early Human Development
https://www.readbyqxmd.com/read/29351769/protocol-to-disseminate-a-hospital-site-controlled-intervention-using-audit-and-feedback-to-implement-guidelines-concerning-inappropriate-treatment-of-asymptomatic-bacteriuria
#3
Barbara W Trautner, Pooja Prasad, Larissa Grigoryan, Sylvia J Hysong, Jennifer R Kramer, Suja Rajan, Nancy J Petersen, Tracey Rosen, Dimitri M Drekonja, Christopher Graber, Payal Patel, Paola Lichtenberger, Timothy P Gauthier, Steve Wiseman, Makoto Jones, Anne Sales, Sarah Krein, Aanand Dinkar Naik
BACKGROUND: Antimicrobial stewardship to combat the spread of antibiotic-resistant bacteria has become a national priority. This project focuses on reducing inappropriate use of antimicrobials for asymptomatic bacteriuria (ASB), a very common condition that leads to antimicrobial overuse in acute and long-term care. We previously conducted a successful intervention, entitled "Kicking Catheter Associated Urinary Tract Infection (CAUTI): the No Knee-Jerk Antibiotics Campaign," to decrease guideline-discordant ordering of urine cultures and antibiotics for ASB...
January 19, 2018: Implementation Science: IS
https://www.readbyqxmd.com/read/29349716/detection-of-bovine-carriers-of-leptospira-by-serological-bacteriological-and-molecular-tools
#4
Melissa H Pinna, Gabriel Martins, Ana Paula Loureiro, Walter Lilenbaum
Bovine leptospirosis is an important infectious disease that causes reproductive problems and economic risks, particularly in the tropics. The present study aimed to determine the extent of Leptospira infection among bovines on a slaughterhouse from Rio de Janeiro, Brazil via serological, bacteriological, and molecular tests. Two hundred eight bovines were examined in total, and we obtained 208 blood samples for serology, 198 urine samples collected via direct bladder puncture for polymerase chain reaction (PCR) and culture, 208 kidney samples (one from each animal) for PCR and culture, and 92 vaginal fluid samples from sterile swabs for PCR and culture...
January 18, 2018: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/29345286/cyclooxygenase-2-expression-is-induced-by-celecoxib-treatment-in-lung-cancer-cells-and-is-transferred-to-neighbor-cells-via-exosomes
#5
Jayoung Kim, Seung-Woo Hong, Seonghan Kim, Daejin Kim, Dae Young Hur, Dong-Hoon Jin, Bomi Kim, Yeong Seok Kim
Lung cancer is one of most common types of cancer worldwide. Lung cancer results in a death higher rate each year compared to colon, breast and prostate cancer combined. Celecoxib is a selective inhibitor of cyclooxygenase-2 (COX‑2), an enzyme of which the expression is induced by various stimuli, such as inflammation. In addition, celecoxib triggers COX-2 loading on exosomes. Exosomes are small vesicles composed of a lipid bilayer membrane and are found in most biological fluids, such as blood breast milk and urine...
February 2018: International Journal of Oncology
https://www.readbyqxmd.com/read/29342250/pneumococcal-community-acquired-pneumonia-detected-by-serotype-specific-urinary-antigen-detection-assays
#6
Richard G Wunderink, Wesley H Self, Evan J Anderson, Robert Balk, Sherene Fakhran, Daniel Mark Courtney, Chao Qi, Derek J Williams, Yuwei Zhu, Cynthia G Whitney, Matthew R Moore, Anna Bramley, Seema Jain, Kathryn M Edwards, Carlos G Grijalva
Background: Streptococcus pneumoniae is considered the leading bacterial cause of pneumonia in adults. Yet, it was not commonly detected by traditional culture-based and conventional urinary testing in a recent multicenter etiology study of adults hospitalized with community-acquired pneumonia (CAP). We used novel serotype-specific urinary antigen detection (SSUAD) assays to determine whether pneumococcal cases were missed by traditional testing. Methods: We studied adult patients hospitalized with CAP at 5 hospitals in Chicago and Nashville (2010-2012) and enrolled in the Etiology of Pneumonia in the Community (EPIC) study...
January 12, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29340148/reducing-unnecessary-culturing-a-systems-approach-to-evaluating-urine-culture-ordering-and-collection-practices-among-nurses-in-two-acute-care-settings
#7
Robert Redwood, Mary Jo Knobloch, Daniela C Pellegrini, Matthew J Ziegler, Michael Pulia, Nasia Safdar
Background: Inappropriate ordering and acquisition of urine cultures leads to unnecessary treatment of asymptomatic bacteriuria (ASB). Treatment of ASB contributes to antimicrobial resistance particularly among hospital-acquired organisms. Our objective was to investigate urine culture ordering and collection practices among nurses to identify key system-level and human factor barriers and facilitators that affect optimal ordering and collection practices. Methods: We conducted two focus groups, one with ED nurses and the other with ICU nurses...
2018: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/29339393/early-clinical-assessment-of-the-antimicrobial-activity-of-finafloxacin-compared-to-ciprofloxacin-in-sub-sets-of-microbiologically-characterized-isolates
#8
Andreas Vente, Christine Bentley, Mark Lückermann, Paul Tambyah, Axel Dalhoff
INTRODUCTION: Two phase II studies were performed in patients with uncomplicated (uUTI) and complicated urinary tract infections or acute pyelonephritis (cUTI/PN) to compare finafloxacin (300 mg b.i.d, p.o. for uUTI 800 mg q.d., i.v. for cUTI/PN) and ciprofloxacin (250 mg b.i.d, p.o. for uUTI and 400 mg b.i.d., i.v. for cUTI/PN). The early response to the study medications was evaluated in the microbiological-intent-to treat population (mITT) at day 3. RESULTS: 21% of the isolates were ciprofloxacin-resistant, 13...
January 16, 2018: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29338914/prophylactic-antibiotics-following-radical-cystectomy-reduces-urinary-tract-infections-and-readmission-for-sepsis-from-a-urinary-source
#9
Ryan P Werntz, Ann Martinez-Acevedo, Hamed Amadi, Ryan Kopp, Jeffrey La Rochelle, Theresa Koppie, Christopher Amling, Kamran P Sajadi
INTRODUCTION: Urinary tract infections (UTI) and sepsis contribute significantly to the morbidity associated with cystectomy and urinary diversion in the first 30 days. We hypothesized that continuous antibiotic prophylaxis decreased UTIs in the first 30 days following radical cystectomy. METHODS: Patients with urothelial carcinoma of the bladder who underwent a radical cystectomy with urinary diversion for bladder cancer at Oregon Health and Science University from January 2014 to May 2015 were included in the study...
January 12, 2018: Urologic Oncology
https://www.readbyqxmd.com/read/29336836/current-status-of-tissue-engineering-applied-to-bladder-reconstruction-in-humans
#10
C Gasanz, C Raventós, J Morote
CONTEXT AND OBJECTIVE: Bladder reconstruction is performed to replace or expand the bladder. The intestine is used in standard clinical practice for tissue in this procedure. The complications of bladder reconstruction range from those of intestinal resection to those resulting from the continuous contact of urine with tissue not prepared for this contact. In this article, we describe and classify the various biomaterials and cell cultures used in bladder tissue engineering and reviews the studies performed with humans...
January 11, 2018: Actas Urologicas Españolas
https://www.readbyqxmd.com/read/29333509/rate-and-association-of-lower-urinary-tract-infection-with-recurrence-after-transurethral-resection-of-bladder-tumor
#11
Byung Soo Kim, Bum Sik Tae, Ja Hyeon Ku, Cheol Kwak, Hyeon Hoe Kim, Chang Wook Jeong
Purpose: To evaluate the rate of pyuria and bacteriuria after transurethral resection of bladder tumor (TURBT). Materials and Methods: We retrospectively evaluated data obtained from 363 patients who underwent TURBT between October 2012 and December 2013 at Seoul National University Hospital. Urinalysis and urine culture were assessed at 3, 6, 12, and 24 months postoperatively. Primary endpoint was the rate of bacteriuria (≥105/mL in a midstream) and pyuria (white blood cells ≥5/high-power field)...
January 2018: Investigative and Clinical Urology
https://www.readbyqxmd.com/read/29325432/risk-factors-for-primary-failure-of-metallic-ureteral-stents-experience-from-a-tertiary-center
#12
Jui-Shan Hsu, Chao-Yuan Huang, Kao-Lang Liu, Po-Ming Chow
INTRODUCTION: We provide primary patency rate of metallic ureteral stents in cancer patients and investigate the factors affecting primary patency. METHODS: All cancer patients who had received metallic stents for malignant ureteral obstruction between July 2009 and November 2012 in our institute were included. No patients were excluded. Patient profiles, imaging studies, and lab data were collected. Patient profiles included age, gender, body height, body weight, body mass index, cancer types, treatment for cancer, response to cancer treatment, methods of stent insertion, and prior ordinary stents...
January 12, 2018: Journal of Endourology
https://www.readbyqxmd.com/read/29324763/factors-associated-with-urinary-tract-infections-among-hiv-1-infected-patients
#13
Agata Skrzat-Klapaczyńska, Bartłomiej Matłosz, Agnieszka Bednarska, Marcin Paciorek, Ewa Firląg-Burkacka, Andrzej Horban, Justyna D Kowalska
BACKGROUND: Urinary tract infections remain an important yet underinvestigated clinical problem among HIV infected patients. Here we analyze factors associated with its occurrence and the spectrum of bacterial pathogens identified in the group of patients followed at the HIV Out-Patient Clinic in Warsaw. METHODS: Clinic database collected all medical information on patients routinely followed since 1994 to 2015. All patients with available urine culture were included into analyses, only the first culture was included...
2018: PloS One
https://www.readbyqxmd.com/read/29323234/caveolin-1-promotes-renal-water-and-salt-reabsorption
#14
Yan Willière, Aljona Borschewski, Andreas Patzak, Tatiana Nikitina, Carsten Dittmayer, Anna L Daigeler, Markus Schuelke, Sebastian Bachmann, Kerim Mutig
Caveolin-1 (Cav1) is essential for the formation of caveolae. Little is known about their functional role in the kidney. We tested the hypothesis that caveolae modulate renal salt and water reabsorption. Wild-type (WT) and Cav1-deficient (Cav1-/-) mice were studied. Cav1 expression and caveolae formation were present in vascular cells, late distal convoluted tubule and principal connecting tubule and collecting duct cells of WT but not Cav1-/- kidneys. Urinary sodium excretion was increased by 94% and urine flow by 126% in Cav1-/- mice (p < 0...
January 11, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29323086/a-rare-case-of-shewanella-putrefaciens-bacteremia-in-a-patient-of-road-traffic-accident
#15
Ritesh Ranjan, Priti Chowdhary
Shewanella putrefaciens rarely causes human infection. These are mostly found in environment and food stuffs. Shewanella are often found in mixed culture. It has been implicated in cellulitis, otitis media, and septicemia. It may be found in respiratory tract, urine, feces, and pleural fluid. There is no definite guideline for therapeutic option. In general, these are susceptible to various antimicrobial agents but are often resistant to penicillin and cephalothin. We report a rare case of bacteremia by S. putrefaciens in a patient of head injury with polytrauma after a road traffic accident...
October 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/29322236/-urosepsis
#16
Mathias W Pletz, Sebastian Weis, Christina Forstner, Florian Wagenlehner
Urosepsis is defined as a severe disease due to organ failure caused by a urinary tract infection. An empirical antibiotic therapy should be instigated within the first hour after diagnosis. Urine cultures and blood cultures should be performed before antibiotic treatment. Further diagnostics should be carried out at an early stage to enable an interventional focus control in the case of urinary tract obstruction or abscess formation, if necessary. Gram-negative pathogens are most frequently isolated. Extended spectrum beta-lactamase (ESBL) forming bacteria as a cause of urosepsis are increasing...
January 10, 2018: Der Urologe. Ausg. A
https://www.readbyqxmd.com/read/29321419/useful-predictive-factors-for-bacteremia-among-outpatients-with-pyelonephritis
#17
Nobuhiro Nakamura, Yuki Uehara, Sayato Fukui, Kazutoshi Fujibayashi, Hirohide Yokokawa, Toshio Naito
Objectives The aim of this study was to identify predictive factors for bacteremia conveniently and quickly among outpatients diagnosed with pyelonephritis. Patients All patients who were diagnosed with pyelonephritis at the outpatient clinic in the Department of General Medicine of Juntendo University Hospital from April 1, 2008, to June 30, 2015, were enrolled. Patients from whom blood cultures had not been taken were excluded. Methods Clinical information was extracted from medical charts. Factors potentially predictive of bacteremia were analyzed using a t-test and Fisher's exact test, followed by a multivariable logistic regression model analysis...
January 11, 2018: Internal Medicine
https://www.readbyqxmd.com/read/29320984/prevalence-and-antibiotic-susceptibility-of-uropathogens-from-cases-of-urinary-tract-infections-uti-in-shashemene-referral-hospital-ethiopia
#18
Wubalem Desta Seifu, Alemayehu Desalegn Gebissa
BACKGROUND: Urinary tract infection (UTI) remains to be one of the most common infectious diseases diagnosed in developing countries. And a widespread use of antibiotics against uropathogens has led to the emergence of antibiotic resistant species. A laboratory based cross-sectional survey was conducted in Shashemene referral hospital to determine the prevalence and antibiotic susceptibility of uropathogens. METHODS: We have collected 384 clean catch mid-stream urine samples from all suspected UTI outpatients using sterile screw capped container...
January 10, 2018: BMC Infectious Diseases
https://www.readbyqxmd.com/read/29319583/the-infectious-and-non-infectious-etiology-clinical-picture-and-outcome-of-neutropenia-in-immunocompetent-hospitalized-children
#19
Odeya David, Yariv Fruchtman, Ruslan Sergienko, Joseph Kapelushnik, Eugene Leibovitz
BACKGROUND: Acquired neutropenia in immunocompetent children is common and its differential diagnosis ranges from benign causes to life-threatening diseases. We described the etiology, clinical picture and outcome of new onset neutropenia in immunocompetent children assessed in the emergency department and hospitalized at our medical center. PATIENTS AND METHODS: Previously healthy children admitted with neutropenia (absolute neutrophil count [ANC] <1.5 x 10/L) were included...
January 9, 2018: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/29319486/evaluating-factors-that-dictate-struvite-stone-composition-a-multi-institutional-clinical-experience-from-the-edge-research-consortium
#20
Ryan Kendrick Flannigan, Andrew Battison, Shubha De, Mitchell R Humphreys, Markus Bader, Ekaterina Lellig, Manoj Monga, Ben H Chew, Dirk Lange
INTRODUCTION: Struvite stones account for 15% of urinary calculi and are typically associated with urease-producing urinary tract infections and carry significant morbidity. This study aims to characterize struvite stones based on purity of stone composition, bacterial speciation, risk factors, and clinical features. METHODS: Retrospective data was collected from patients diagnosed with infection stones between 2008 and 2012. Stone analysis, perioperative urine cultures, bacterial speciation, and clinical data were collected and analyzed...
December 22, 2017: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
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