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e. coli in children

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https://www.readbyqxmd.com/read/28222699/suspicion-of-respiratory-tract-infection-with-multidrug-resistant-enterobacteriaceae-epidemiology-and-risk-factors-from-a-paediatric-intensive-care-unit
#1
Hanna Renk, Lenja Stoll, Felix Neunhoeffer, Florian Hölzl, Matthias Kumpf, Michael Hofbeck, Dominik Hartl
BACKGROUND: Multidrug-resistant (MDR) infections are a serious concern for children admitted to the Paediatric Intensive Care Unit (PICU). Tracheal colonization with MDR Enterobacteriaceae predisposes to respiratory infection, but underlying risk factors are poorly understood. This study aims to determine the incidence of children with suspected infection during mechanical ventilation and analyses risk factors for the finding of MDR Enterobacteriaceae in tracheal aspirates. METHODS: A retrospective single-centre analysis of Enterobacteriaceae isolates from the lower respiratory tract of ventilated PICU patients from 2005 to 2014 was performed...
February 21, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28209599/role-of-shp2-protein-tyrosine-phosphatase-in-sert-inhibition-by-enteropathogenic-e-coli-epec
#2
Megha Singhal, Christopher Manzella, Vinay Soni, Waddah A Alrefai, Seema Saksena, Gail A Hecht, Pradeep K Dudeja, Ravinder K Gill
Enteropathogenic E. coli (EPEC), one of the diarrheagenic E. coli pathotypes, is among the most important food-borne pathogens infecting children worldwide. Inhibition of serotonin transporter (SERT), that regulates extracellular availability of serotonin (5-HT), has been previously implicated in EPEC-associated diarrhea. EPEC was shown to inhibit SERT via activation of protein tyrosine phosphatases (PTPase), albeit the specific PTPase involved is not known. Current studies aimed to identify EPEC activated PTPase and its role in SERT inhibition...
February 16, 2017: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/28190609/evaluation-of-a-new-real-time-pcr-assay-for-the-direct-detection-of-diarrheagenic-escherichia-coli-in-stool-specimens
#3
U Eigner, A Hiergeist, A Veldenzer, M Rohlfs, R Schwarz, M Holfelder
Diarrheagenic E. coli (DEC) are one of the most common causes for diarrhea worldwide, especially in children. We evaluated the rapid RIDA ® GENE (RG) real-time multiplex PCR assays (R-Biopharm, Darmstadt, Germany) for the detection of the most important diarrheagenic E. coli. Three hundred fifteen liquid or non-formed stool specimens were examined. The results of the RG multiplex assays were compared to specific PCR methods. The sensitivity and specificity of the RG PCRs were as follows, 100%/100% for the detection of EHEC, 96...
February 1, 2017: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/28183731/c-septicum-complicating-hemolytic-uremic-syndrome-survival-without-surgical-intervention
#4
Rachel M Engen, Elizabeth Y Killien, Jessica L Davis, Jordan M Symons, Silvia M Hartmann
Clostridium septicum is an anaerobic bacterium that causes rapidly progressive myonecrosis, bacteremia, and central nervous system infection. It has been reported as a complication of Escherichia coli hemolytic uremic syndrome (HUS) in 8 children worldwide; 5 children died, and the 3 reported survivors had surgically treated disease. We present 3 cases of C septicum complicating HUS in children, including the first 2 reported cases of survival without surgical intervention. All patients presented with classic cases of HUS with initial clinical improvement followed by deterioration...
February 9, 2017: Pediatrics
https://www.readbyqxmd.com/read/28178312/escherichia-albertii-a-novel-human-enteropathogen-colonizes-rat-enterocytes-and-translocates-to-extra-intestinal-sites
#5
Denise Yamamoto, Rodrigo T Hernandes, Ana Maria A Liberatore, Cecilia M Abe, Rodrigo B de Souza, Fabiano T Romão, Vanessa Sperandio, Ivan H Koh, Tânia A T Gomes
Diarrhea is the second leading cause of death of children up to five years old in the developing countries. Among the etiological diarrheal agents are atypical enteropathogenic Escherichia coli (aEPEC), one of the diarrheagenic E. coli pathotypes that affects children and adults, even in developed countries. Currently, genotypic and biochemical approaches have helped to demonstrate that some strains classified as aEPEC are actually E. albertii, a recently recognized human enteropathogen. Studies on particular strains are necessary to explore their virulence potential in order to further understand the underlying mechanisms of E...
2017: PloS One
https://www.readbyqxmd.com/read/28164415/e-coli-contamination-of-child-complementary-foods-and-association-with-domestic-hygiene-in-rural-bangladesh
#6
Sarker Masud Parvez, Laura Kwong, Musarrat Jabeen Rahman, Ayse Ercumen, Amy J Pickering, Probir K Ghosh, Md Zahidur Rahman, Kishor Kumar Das, Stephen P Luby, Leanne Unicomb
OBJECTIVE: To determine the frequency and concentration of E. coli in child complementary food and its association with domestic hygiene practices in rural Bangladesh. METHOD: 608 households with children <2 years were enrolled. We collected stored complementary food samples, performed spot checks on domestic hygiene and measured ambient temperature in the food storage area. Food samples were analyzed using the IDEXX most probable number (MPN) method with Colilert-18 media to enumerate E...
February 6, 2017: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/28107866/potential-of-zimbabwean-commercial-probiotic-products-and-strains-of-lactobacillus-plantarum-as-prophylaxis-and-therapy-against-diarrhoea-caused-by-escherichia-coli-in-children
#7
Walter Chingwaru, Jerneja Vidmar
OBJECTIVE: To evaluate the potential of commercial fermented products sold in the country, and strains of Lactobacillus plantarum (L. plantarum) as prophylaxis and therapy against diarrhoea in children. METHODS: The antimicrobial potential of cultures of lactobacilli enriched from 4 Zimbabwean commercial food/beverage products: Dairibord Lacto sour milk (DLSM), Probrand sour milk (PSM), Kefalos Vuka cheese (KVC) and Chibuku opaque beer (COB); and four strains of L...
January 2017: Asian Pacific Journal of Tropical Medicine
https://www.readbyqxmd.com/read/28096977/high-rates-of-multidrug-resistance-among-uropathogenic-escherichia-coli-in-children-and-analyses-of-esbl-producers-from-nepal
#8
Narayan Prasad Parajuli, Pooja Maharjan, Hridaya Parajuli, Govardhan Joshi, Deliya Paudel, Sujan Sayami, Puspa Raj Khanal
BACKGROUND: Emergence of Extended-spectrum beta-lactamase producing Escherichia coli causing urinary tract infections (UTI) among pediatric patients is an increasing problem worldwide. However, very little is known about pediatric urinary tract infections and antimicrobial resistance trend from Nepal. This study was conducted to assess the current antibiotic resistance rate and ESBL production among uropathogenic Escherichia coli in pediatric patients of a tertiary care teaching hospital of Nepal...
2017: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/28095119/fecal-carriage-of-extended-spectrum-%C3%AE-lactamase-producing-enterobacteriaceae-strains-is-associated-with-worse-outcome-in-patients-hospitalized-in-the-pediatric-oncology-unit-of-beni-messous-hospital-in-algiers-algeria
#9
Chafiaa Medboua-Benbalagh, Abdelaziz Touati, Rachida Kermas, Alima Gharout-Sait, Lucien Brasme, Halima Mezhoud, Djamila Touati, Thomas Guillard, Christophe de Champs
OBJECTIVES: The current study aimed to investigate extended-spectrum β-lactamase-producing Enterobacteriaceae (ESBL-E) fecal carriage in children with different cancers admitted in the pediatric oncology unit of Beni-Messous Hospital (Algiers, Algeria). MATERIALS AND METHODS: Rectal swabs from children with cancer were sampled from February 2012 to May 2013 within 48 hours following their admission. After species identification and detection of ESBL production by double-disk synergy test (DD test), antibiotic susceptibility was determined by the standard disk diffusion method...
January 17, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/28093532/soil-ingestion-is-associated-with-child-diarrhea-in-an-urban-slum-of-nairobi-kenya
#10
Valerie Bauza, R M Ocharo, Thanh H Nguyen, Jeremy S Guest
Diarrhea is a leading cause of mortality in children under 5 years of age. We conducted a cross-sectional study of 54 children aged 3 months to 5 years old in Kibera, an urban slum in Nairobi, Kenya, to assess the relationship between caregiver-reported soil ingestion and child diarrhea. Diarrhea was significantly associated with soil ingestion (adjusted odds ratio = 9.9, 95% confidence interval = 2.1-47.5). Soil samples from locations near each household were also collected and analyzed for Escherichia coli and a human-associated Bacteroides fecal marker (HF183)...
January 16, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28076655/fecal-total-iron-concentration-is-inversely-associated-with-fecal-lactobacillus-in-preschool-children
#11
Sasank Kalipatnapu, Sivaraman Kuppuswamy, Giriprasad Venugopal, Venkatesh Kaliaperumal, Balamurugan Ramadass
BACKGROUND: Iron deficiency is associated with stunting and poor performance in children. Oral iron supplementation is widely promoted to correct iron deficiency. However, excess iron may be toxic to beneficial luminal gut bacteria and could support growth of pathobionts. OBJECTIVE: To analyze the fecal total iron concentration and fecal Lactobacillus levels in a cohort of stunted and normal children. DESIGN: The study was undertaken in two different locations...
January 11, 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28062285/a-review-on-strategies-for-decreasing-e-%C3%A2-coli-o157-h7-risk-in-animals
#12
REVIEW
Pardis Saeedi, Maryam Yazdanparast, Elham Behzadi, Ali Hatef Salmanian, Seyed Latif Mousavi, Shahram Nazarian, Jafar Amani
Enterohemorrhagic Escherichia coli (EHEC) serotype O157:H7 is a food-borne pathogen that younger children are most prone to this microorganism. Hemolytic Uremic Syndrome (HUS) caused by EHEC, leads to the destruction of red blood cells and kidney failure. The virulence of E.coli O157:H7 is attributed to fimbriae, that facilitate colonization of bacteria within the colon and verotoxins (VT) or Shiga toxins (Stx) that are released into the blood. Although, in most cases, the infection is self-limitedin young children and aged population, it may cause HUS...
January 3, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28057514/systemic-effects-of-subtilase-cytotoxin-produced-by-escherichia-coli-o113-h21
#13
E Abril Seyahian, Gisela Oltra, Federico Ochoa, Santiago Melendi, Ricardo Hermes, James C Paton, Adrienne W Paton, Nestor Lago, Mauricio Castro Parodi, Alicia Damiano, Cristina Ibarra, Elsa Zotta
: Subtilase cytotoxin (SubAB) is a member of the AB5 cytotoxin family and is produced by certain strains of Shiga toxigenic Escherichia coli. The toxin is known to be lethal to mice, but the pathological mechanisms that contribute to Uremic Hemolytic Syndrome (HUS) are poorly understood. In this study we show that intraperitoneal injection of a sublethal dose of SubAB in rats triggers a systemic response, with ascitic fluid accumulation, heart hypertrophy and damage to the liver, colon and kidney...
January 3, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28043633/development-of-escherichia-coli-and-mycobacterium-smegmatis-recombinants-expressing-major-mycobacterium-tuberculosis-specific-antigenic-proteins
#14
Hanady A Amoudy, Hussain A Safar, Abu S Mustafa
OBJECTIVE/BACKGROUND: Mycobacterium tuberculosis is an obligate pathogenic bacterial species in the family Mycobacteriaceae and the causative agent of most tuberculosis (TB) cases. Until today, the only approved TB vaccine is Bacille Calmette Guerin (BCG), which has been used since 1921. While BCG provides fairly effective protection for infants and young children, its efficacy in adults is variable around the world. This could be due to several parameters including strains of the vaccine and exposure of individuals to different environmental bacterial infections...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28039159/gut-microbiota-differs-between-children-with-inflammatory-bowel-disease-and-healthy-siblings-in-taxonomic-and-functional-composition-a-metagenomic-analysis
#15
Rebecca Luise Knoll, Kristoffer Forslund, Jens Roat Kultima, Claudius U Meyer, Ulrike Kullmer, Shinichi Sunagawa, Peer Bork, Stephan Gehring
Current treatment for pediatric IBD patients is often ineffective, with serious side effects. Manipulating the gut microbiota via fecal microbiota transplantation (FMT) is an emerging treatment approach but remains controversial. We aimed to assess the composition of the fecal microbiome through a comparison of pediatric IBD patients to their healthy siblings, evaluating risks and prospects for FMT in this setting. A Case-Control (Sibling) Study was conducted analyzing fecal samples of six children with Crohn's Disease (CD), six children with Ulcerative Colitis (UC) and 12 healthy siblings by metagenomic sequencing...
December 30, 2016: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/28034476/defining-cases-of-severe-pediatric-diarrhea-for-an-efficacy-trial-of-an-enterotoxigenic-escherichia-coli-etec-vaccine-report-on-an-international-workshop-washington-dc-march-2016
#16
Thomas F Wierzba, Alexandra Bourgis
Enterotoxigenic Escherichia coli (ETEC) causes severe acute watery diarrhea. No ETEC vaccine is available but candidates are in development, including ETVAX, an oral, whole-cell inactivated vaccine. ETVAX is being tested in a descending-age trial in Bangladesh. If found safe and immunogenic, investigators may test it for efficacy in children. Like oral rotavirus vaccines, we expect that ETVAX will be most effective at decreasing the incidence of moderate-to-severe ETEC episodes. Thus, for an efficacy trial outcome, it will be necessary to triage patients into moderate-to-severe versus mild disease...
January 23, 2017: Vaccine
https://www.readbyqxmd.com/read/28025699/surveillance-of-gram-negative-bacteria-impact-of-variation-in-current-european-laboratory-reporting-practice-on-apparent-multidrug-resistance-prevalence-in-paediatric-bloodstream-isolates
#17
J A Bielicki, D A Cromwell, A Johnson, T Planche, M Sharland
This study evaluates whether estimated multidrug resistance (MDR) levels are dependent on the design of the surveillance system when using routine microbiological data. We used antimicrobial resistance data from the Antibiotic Resistance and Prescribing in European Children (ARPEC) project. The MDR status of bloodstream isolates of Escherichia coli, Klebsiella pneumoniae and Pseudomonas aeruginosa was defined using European Centre for Disease Prevention and Control (ECDC)-endorsed standardised algorithms (non-susceptible to at least one agent in three or more antibiotic classes)...
December 26, 2016: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28005691/clinical-and-bacterial-risk-factors-for-mortality-in-children-with-carbapenem-resistant-enterobacteriaceae-bloodstream-infections-in-india
#18
Laura E B Nabarro, Chaitra Shankar, Akila Prakasam, Georgekutty Mathew, Visali Jeyaseelan, Balaji Veeraraghavan, Valsan P Verghese
BACKGROUND: Carbapenem-resistant Enterobacteriaceae (CRE) are an increasing cause of nosocomial infection in hospitalized children worldwide. Few studies have investigated risk factors for mortality in children with CRE bloodstream infection (BSI). Data are particularly scarce in areas where NDM and OXA carbapenemases predominate. Here, we investigate mortality rates, clinical and microbiologic risk factors for mortality in 50 pediatric patients with CRBSI in India. METHOD: Children younger than 17 years old with meropenem-resistant Klebsiella pneumoniae or Escherichia coli isolated from blood culture in 2014 and 2015 were identified from laboratory records...
December 21, 2016: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/27991739/paediatric-hus-cases-related-to-the-consumption-of-raw-milk-sold-by-vending-machines-in-italy-quantitative-risk-assessment-based-on-escherichia-coli-o157-official-controls-over-7%C3%A2-years
#19
F Giacometti, P Bonilauri, S Piva, G Scavia, S Amatiste, D M Bianchi, M N Losio, S Bilei, G Cascone, D Comin, P Daminelli, L Decastelli, G Merialdi, R Mioni, A Peli, A Petruzzelli, F Tonucci, G Liuzzo, A Serraino
A quantitative risk assessment (RA) was developed to estimate haemolytic-uremic syndrome (HUS) cases in paediatric population associated with the consumption of raw milk sold in vending machines in Italy. The historical national evolution of raw milk consumption phenomenon since 2008, when consumer interest started to grow, and after 7 years of marketing adjustment, is outlined. Exposure assessment was based on the official Shiga toxin-producing Escherichia coli O157:H7 (STEC) microbiological records of raw milk samples from vending machines monitored by the regional Veterinary Authorities from 2008 to 2014, microbial growth during storage, consumption frequency of raw milk, serving size, consumption preference and age of consumers...
December 19, 2016: Zoonoses and Public Health
https://www.readbyqxmd.com/read/27981921/emerging-trends-of-bloodstream-infections-a-six-year-study-at-a-paediatric-tertiary-care-hospital-in-kabul
#20
Tariq Mahmud Tariq, Esmatullah Rasool
OBJECTIVE: To determine the frequency of pathogens causing bloodstream infections and evaluate their trends and antibiogram patterns among in-patients in a paediatric tertiary care centre. STUDY DESIGN: Descriptive study. PLACE AND DURATION OF STUDY: French Medical Institute for Mothers and Children (FMIC), Kabul, Afghanistan in two phases, from January 2010 to December 2015. METHODOLOGY: Results of blood cultures from suspected cases of sepsis admitted in the FMIC, from January 2010 to December 2012 (Period-1), and from January 2013 to December 2015 (Period-2) were completed...
November 2016: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
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