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https://www.readbyqxmd.com/read/28197380/the-influence-of-gut-decontamination-prophylactic-antibiotics-on-acute-graft-versus-host-disease-and-survival-following-allogeneic-hematopoietic-stem-cell-transplantation
#1
Bertrand Routy, Caroline Letendre, David Enot, Maxime Chénard-Poirier, Vikram Mehraj, Noémie Charbonneau Séguin, Khaled Guenda, Kathia Gagnon, Paul-Louis Woerther, David Ghez, Silvy Lachance
The intestinal microbiota plays a key role in the pathogenesis of acute graft-versus-host disease (aGVHD). High-dose conditioning regimens given prior to allogeneic hematopoietic stem cell transplantation (aHSCT) modulate the composition of gut microbiota and damage the gut epithelial barrier, resulting in increased systemic inflammation. We assessed whether gut decontamination with antibiotics (ATB) prior to aHSCT influenced the frequency of aGVHD and mortality in 500 patients from two Canadian centers between 2005 and 2012...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28195985/prosthetic-joint-infections-in-patients-undergoing-carpal-tunnel-release
#2
Wenjing Zeng, Deborah Paul, Thomas Kemp, John Elfar
INTRODUCTION: Little information is available regarding the rate of prosthetic joint infections (PJIs) in patients undergoing carpal tunnel release (CTR) without antibiotic prophylaxis. Hand surgeons should be aware of patients' history of arthroplasty. METHODS: All patients who underwent CTR at our institution between 2012 and 2014 were identified and their charts were reviewed to identify those who had a history of total hip, knee, and/or shoulder arthroplasty...
March 2017: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/28192951/identification-and-quantification-of-intravenous-therapy-drugs-using-normal-raman-spectroscopy-and-electrochemical-surface-enhanced-raman-spectroscopy
#3
Stephanie Zaleski, Kathleen A Clark, Madison M Smith, Jan Y Eilert, Mark Doty, Richard P Van Duyne
Errors in intravenous (IV) drug therapies can cause human harm and even death. There are limited label-free methods that can sensitively monitor the identity and quantity of the drug being administered. Normal Raman spectroscopy (NRS) provides a modestly sensitive, label-free, and completely noninvasive means of IV drug sensing. In the case that the analyte cannot be detected within its clinical range with Raman, a label-free surface-enhanced Raman spectroscopy (SERS) approach can be implemented to detect the analyte of interest...
January 30, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28181543/meca-related-structure-in-methicillin-resistant-coagulase-negative-staphylococci-from-street-food-in-taiwan
#4
Tsung-Ying Yang, Wei-Wen Hung, Lin Lin, Wei-Chun Hung, Sung-Pin Tseng
Antibiotic-resistant patterns, a mecA homologue complex, and staphylococcal cassette chromosome mec (SCCmec) were analysed in samples of ready-to-eat (RTE) street food in Taiwan. RTE food samples (270) were collected in three densely populated Taiwanese cities between June and November 2014. Among 14 strains being identified as methicillin-resistant coagulase-negative staphylococci (MRCoNS), genetic diversities was determined by PFGE analysis. SCCmec types IV, V, VIII and TXG-24 were detected in 9, and mecASs (a mecA homologue) detected in 8...
February 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28179118/genetic-diversity-of-methicillin-resistant-staphylococcus-aureus-strains-isolated-from-burn-patients-in-iran-st239-sccmec-iii-t037-emerges-as-the-major-clone
#5
Mehdi Goudarzi, Mahnaz Bahramian, Mahboobeh Satarzadeh Tabrizi, Edet E Udo, Agnes Marie Sá Figueiredo, Maryam Fazeli, Hossein Goudarzi
Methicillin-resistant Staphylococcus aureus (MRSA) as a major cause of infection in health care, hospital and community settings is a global health concern. The purpose of this study was to determine the antibiotic susceptibility pattern and distribution of circulating molecular types of MRSA in a burn hospital in Tehran, the capital of Iran. During a 10-month study period, 106 Staphylococcus aureus isolates were assessed. Isolates were subjected to susceptibility testing using the disk diffusion method and Polymerase Chain Reaction (PCR) for detection of mecA, fem and nuc genes...
February 5, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28178305/clinical-utility-of-c-reactive-protein-to-predict-treatment-response-during-cystic-fibrosis-pulmonary-exacerbations
#6
Ashutosh Sharma, Gordon Kirkpatrick, Virginia Chen, Kate Skolnik, Zsuzsanna Hollander, Pearce Wilcox, Bradley S Quon
RATIONALE: C-reactive protein (CRP) is a systemic marker of inflammation that correlates with disease status in cystic fibrosis (CF). The clinical utility of CRP measurement to guide pulmonary exacerbation (PEx) treatment decisions remains uncertain. OBJECTIVES: To determine whether monitoring CRP during PEx treatment can be used to predict treatment response. We hypothesized that early changes in CRP can be used to predict treatment response. METHODS: We reviewed all PEx events requiring hospitalization for intravenous (IV) antibiotics over 2 years at our institution...
2017: PloS One
https://www.readbyqxmd.com/read/28173753/conjugative-type-ivb-pilus-recognizes-lipopolysaccharide-of-recipient-cells-to-initiate-papi-1-pathogenicity-island-transfer-in-pseudomonas-aeruginosa
#7
Toan Phuoc Hong, Michelle Q Carter, Paolo Struffi, Stefano Casonato, Youai Hao, Joseph S Lam, Stephen Lory, Olivier Jousson
BACKGROUND: Pseudomonas aeruginosa pathogenicity island 1 (PAPI-1) is one of the largest genomic islands of this important opportunistic human pathogen. Previous studies have shown that PAPI-1 encodes several putative virulence factors, including a major regulator of biofilm formation and antibiotic-resistance traits. PAPI-1 is horizontally transferable into recipient strains lacking this island via conjugation mediated by the specialized type IV pilus. The PAPI-1 encodes a cluster of ten genes associated with the synthesis and assembly of the type IV pilus...
February 7, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28168081/tetracyclines-in-food-and-feedingstuffs-from-regulation-to-analytical-methods-bacterial-resistance-and-environmental-and-health-implications
#8
REVIEW
Fabio Granados-Chinchilla, César Rodríguez
Antibiotics are widely used as growth promoters in animal husbandry; among them, the tetracyclines are a chemical group of relevance, due to their wide use in agriculture, surpassing in quantities applied almost every other antibiotic family. Seeing the considerable amounts of tetracyclines used worldwide, monitoring of these antibiotics is paramount. Advances must be made in the analysis of antibiotics to assess correct usage and dosage of tetracyclines in food and feedstuffs and possible residues in pertinent environmental samples...
2017: Journal of Analytical Methods in Chemistry
https://www.readbyqxmd.com/read/28167248/agreement-between-pre-operative-and-intra-operative-bacteriological-samples-in-85-chronic-peri-prosthetic-infections
#9
Valérie Matter-Parrat, Cécile Ronde-Oustau, Cyril Boéri, Jeannot Gaudias, Jean-Yves Jenny
BACKGROUND: Whether pre-operative microbiological sampling contributes to the management of chronic peri-prosthetic infection remains controversial. We assessed agreement between the results of pre-operative and intra-operative samples in patients undergoing single-stage prosthesis exchange to treat chronic peri-prosthetic infection. HYPOTHESIS: Agreement between pre-operative and intra-operative samples exceeds 75% in patients undergoing single-stage exchange of a hip or knee prosthesis to treat chronic peri-prosthetic infection...
February 3, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28159661/molecular-characteristics-of-methicillin-resistant-staphylococcus-aureus-mrsa-strains-isolated-from-patients-with-bacteremia-based-on-mlst-sccmec-spa-and-agr-locus-types-analysis
#10
Mehdi Goudarzi, Sima Sadat Seyedjavadi, Mohammad Javad Nasiri, Hossein Goudarzi, Raheleh Sajadi Nia, Hossein Dabiri
The widespread emergence of methicillin resistant Staphylococcus aureus, as a common cause of nosocomial infections, is becoming a serious concern in global public health. The objective of the present study was to investigate antimicrobial susceptibility pattern, frequency of virulence genes and molecular characteristics of methicillin-resistant Staphylococcus aureus strains isolated from patients with bacteremia. A total of 128 methicillin-resistant Staphylococcus aureus isolates were collected during February 2015 to January 2016...
February 1, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28152085/a-putative-multi-replicon-plasmid-co-harboring-beta-lactamase-genes-blakpc-2-blactx-m-14-and-blatem-1-and-trimethoprim-resistance-gene-dfra25-from-a-klebsiella-pneumoniae-sequence-type-st-11-strain-in-china
#11
Yu Tang, Pinghua Shen, Wei Liang, Jialin Jin, Xiaofei Jiang
The global emergence of Klebsiella pneumoniae carbapenemase (KPC)-producing Klebsiella pneumoniae poses a major public health threat requiring immediate and aggressive action. Some older generation antibiotics, such as trimethoprim, serve as alternatives for treatment of infections. Here, we determined the complete nucleotide sequence of plasmid pHS091147, which co-harbored the carbapenemase (blaKPC-2) and trimethoprim resistance genes (dfrA25) from a Klebsiella pneumoniae sequence type (ST) 11 clone recovered in Shanghai, China...
2017: PloS One
https://www.readbyqxmd.com/read/28151765/necrotizing-soft-tissue-infection-or-sweet-syndrome-surgery-versus-no-surgery-a-case-report
#12
Tiffany M N Otero, Samuel R Barber, D Dante Yeh, Sadeq A Quraishi
The authors report a case of necrotizing Sweet syndrome in a 24-year-old transsexual male who presented with recurrent myonecrosis of the neck/upper chest. On index admission, computer tomography revealed gas and fat stranding of the sternocleidomastoid and pectoralis major muscle-findings suggestive of a necrotizing soft tissue infection. Despite debridement procedures and intravenous antibiotic therapy, myonecrosis of the affected areas persisted. Evaluation of tissue samples by dermatopathology revealed neutrophilic infiltration extending into the dermis and muscle necrosis, findings consistent with necrotizing Sweet syndrome...
February 1, 2017: A & A Case Reports
https://www.readbyqxmd.com/read/28138432/spontaneous-nephrocutaneous-fistula-rare-complication-of-xanthogranulomatous-pyelonephritis
#13
Rami Alazab, Hamzeh M Ghawanmeh, Faris Abushamma, Omar Ababneh, Anas I Al-Karasneh
Renocutaneous fistulae may occur as a result of chronic infection, especially in the setting of calculous disease.(1) Spontaneous renocutaneous is rare.(2) Usually nephrocutanous fistula developed in patient with previous renal surgery, trauma, tumors, and chronic urinary tract infection with abscess formation. We report a case of spontaneous nephrocutaneous fistula. A 37-year-old women previously well presented to ER department with purulent discharge and a palpable mass on the left lumbar area. CT scan with IV contrast fistulous tract seen within the subcutaneous plane in Left lumbar region tracking towards retroperitoneal space, and in continuity with of left kidney...
February 2017: Urology Case Reports
https://www.readbyqxmd.com/read/28128910/current-practice-of-antibiotic-utilization-for-renal-colic-in-the-emergency-room
#14
Bryan Hinck, Benjamin Larson, Shubha De, Manoj Monga
INTRODUCTION: Urinalysis (UA) in the emergency setting for patients with nephrolithiasis produces potentially confusing results leading to treatment of presumed urinary tract infections (UTIs). Our objective was to evaluate the use of antibiotics in patients with nephrolithiasis in a large network of emergency departments (EDs). METHODS: A retrospective analysis of all ED visits associated with an ICD-9 diagnosis of nephrolithiasis and a CT scan between 2010 and 2013 was performed...
January 27, 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/28128086/vesicular-contact-reaction-may-progress-into-erythema-multiforme
#15
Magdalena Czarnecka-Operacz, Dorota Jenerowicz, Joanna Szulczyńska-Gabor, Ewa Teresiak-Mikołajczak, Joanna Szyfter-Harris, Monika Bowszyc-Dmochowska
Dear Editor, Erythema multiforme is considered an acute skin condition, characterized by a self-limiting and sometimes recurrent course. It is regarded as a type IV hypersensitivity reaction associated with certain infections, medications, and other various triggers. Allergic contact dermatitis is in turn a delayed type of induced allergy as a result of cutaneous contact with a specific allergen to which the patient develops specific sensitivity. This type of cutaneous reaction is associated with inflammation manifesting with erythema, edema, and vesicles...
December 2016: Acta Dermatovenerologica Croatica: ADC
https://www.readbyqxmd.com/read/28124965/-bacteremia-caused-by-ciprofloxacin-resistant-salmonella-serotype-kentucky-a-case-report-and-the-review-of-literature
#16
Tuba Müderris, Fatma Yekta Ürkmez, Şeref Alp Küçüker, Muhammet Fethi Sağlam, Gül Ruhsar Yılmaz, Rahmet Güner, Revasiye Güleşen, Ziya Cibali Açıkgöz
Salmonella infections can be seen in four clinical types, namely gastroenteritis, bacteremia/sepsis, enteric fever and carriage. These infections can result in uncomplicated diarrhea in most cases, but can lead to invasive disease requiring antimicrobial therapy and can be life-threatening in elderly or immunocomprimised patients. Broad-spectrum cephalosporins and fluoroquinolones are crucial options in the treatment of the invasive infections. Ciprofloxacin resistance is rarely seen in non-typhoid Salmonella enterica isolates, and only in S...
October 2016: Mikrobiyoloji Bülteni
https://www.readbyqxmd.com/read/28122106/retropharyngeal-and-parapharyngeal-abscesses-factors-in-medical-management-failure
#17
James Kosko, Justin Casey
Retropharyngeal and parapharyngeal abscesses are the most common deep neck infections in the pediatric population. How best to treat these patients, be it intravenous antibiotics or immediate surgical incision and drainage, has long been debated. The purpose of this study was to evaluate patient and abscess characteristics associated with failure of medical treatment. We retrospectively examined 46 patients between 1999 and 2009 at Arnold Palmer Children's Hospital in Orlando. Patient charts were reviewed, and data collected included age, gender of the patient, size of the abscess, days of admission to the hospital, admission to the intensive care unit, and surgical intervention, if applicable...
January 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/28113087/ex-vivo-antibacterial-activity-of-levofloxacin-against-escherichia-coli-and-its-pharmacokinetic-profile-following-intravenous-and-oral-administrations-in-broilers
#18
Hong Ki Lee, Virginia DeVito, Cristina Vercelli, Clara Tramuta, Patrizia Nebbia, Giovanni Re, Kaspars Kovalenko, Mario Giorgi
The use of antibiotics is necessary to treat bacterial diseases. Determination of optimal dosage in the target animals is increasingly being recognized as vital for maximizing efficacy and minimizing the risk of resistance, so this study aimed to evaluate the pharmacokinetics/pharmacodynamics (PK/PD) of levofloxacin in broilers. Using a parallel study design, each group of animals (n=20) received 5mg/kg of levofloxacin intravenously (IV) and orally (PO). Plasma, serum and tissues were collected for PK and PD studies...
January 12, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28108677/in-vitro-susceptibility-to-19-agents-other-than-%C3%AE-lactams-among-third-generation-cephalosporin-resistant-enterobacteriaceae-recovered-on-hospital-admission
#19
A Mischnik, P Baumert, A Hamprecht, A M Rohde, S Peter, S Feihl, J Knobloch, H Gölz, A Kola, B Obermann, C Querbach, M Willmann, F Gebhardt, E Tacconelli, P Gastmeier, H Seifert, W V Kern
OBJECTIVES: As part of the multicentre Antibiotic Therapy Optimisation Study, MIC values of 19 non-β-lactam agents were determined for third-generation cephalosporin-resistant Escherichia coli, Klebsiella species and Enterobacter species (3GCREB) isolates collected in German hospitals. METHODS: A total of 328 E. coli, 35 Klebsiella spp. (1 Klebsiella oxytoca and 34 Klebsiella pneumoniae) and 16 Enterobacter spp. (1 Enterobacter aerogenes and 15 Enterobacter cloacae) isolates were submitted to broth microdilution antimicrobial susceptibility testing with the MICRONAUT system...
January 19, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28107364/genetic-attributes-of-e-coli-isolates-from-chlorinated-drinking-water
#20
Michaela D J Blyton, David M Gordon
Escherichia coli, is intimately associated with both human health and water sanitation. E. coli isolates from water can either be (i) host associated commensals, indicating recent faecal contamination; (ii) diarrheal pathogens or (iii) extra-intestinal pathogens that pose a direct health risk; or (iv) free-living. In this study we genetically characterised 28 E. coli isolates obtained from treated drinking water in south eastern Australia to ascertain their likely source. We used full genome sequencing to assign the isolates to their phylogenetic group and multi-locus sequence type...
2017: PloS One
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