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https://www.readbyqxmd.com/read/29050757/ionophore-a23187-shows-anti-tuberculosis-activity-and-synergy-with-tebipenem
#1
Wei Huang, Julien Briffotaux, Xinwei Wang, Lili Liu, Pei Hao, Mena Cimino, Maria Virginia Buchieri, Amine Namouchi, Jose-Antonio Ainsa, Brigitte Gicquel
The objective of this study was to find molecules with anti-mycobacterial activity from a natural compounds library, investigate their mechanisms of resistance, and assess their synergy with antibiotics. We screened a library of 2582 natural compounds with Mycobacterium aurum with the aim of identifying molecules with anti-mycobacterial activity. The hits with the lowest MICs in M. aurum were also tested for their antimicrobial activity in other mycobacterial species including M. tuberculosis complex strains...
December 2017: Tuberculosis
https://www.readbyqxmd.com/read/29047169/non-immediate-reading-skin-tests-and-prolonged-challenges-in-non-immediate-hypersensitivity-to-beta-lactams-in-children
#2
G Lezmi, F Alrowaishdi, A Bados-Albiero, P Scheinmann, J de Blic, C Ponvert
BACKGROUND: A minority of children reporting non-immediate reactions to beta-lactams (BLs) are allergic. Allergy workup usually includes late-reading (48-72h) skin tests (ST) and short (1-3 days) drug provocation tests (DPT), regardless of the chronology of the index reaction. The sensitivity of hyper-late-reading (≥ 6-7 days) ST and of prolonged DPT for the diagnosis of non-immediate hypersensitiviy to BLs are yet to be determined. OBJECTIVES: To establish the diagnostic values of late- and hyper-late-reading ST and of prolonged DPT in children reporting non-immediate reactions to BLs...
October 19, 2017: Pediatric Allergy and Immunology
https://www.readbyqxmd.com/read/29044738/overview-of-mechanisms-of-antibiotic-resistance-in-pseudomonas-aeruginosa-an-ocular-perspective
#3
REVIEW
Dinesh Subedi, Ajay Kumar Vijay, Mark Willcox
Treatment of Pseudomonas aeruginosa eye infections often becomes a challenge due to the ability of this bacterium to be resistant to antibiotics via intrinsic and acquired mechanisms. Transfer of resistance due to interchangeable genetic elements is an important mechanism for the rapid transfer of antibiotic resistance in this pathogen. As a result, drug-resistant strains are becoming increasingly prevalent worldwide. This review systematically analyses data from recent publications to describe the global prevalence and antibiotic sensitivity of ocular P...
October 18, 2017: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/29028569/occurrence-of-transferable-antibiotic-resistances-in-commercialized-ready-to-eat-mealworms-tenebrio-molitor-l
#4
Andrea Osimani, Federica Cardinali, Lucia Aquilanti, Cristiana Garofalo, Andrea Roncolini, Vesna Milanović, Marina Pasquini, Stefano Tavoletti, Francesca Clementi
The present study aimed to assess the occurrence of transferable determinants conferring resistance to tetracyclines, macrolide-lincosamide-streptogramin B, vancomycin, beta-lactams, and aminoglycosides in 40 samples of commercialized edible mealworms (Tenebrio molitor L.) purchased from European Union (EU) and non-EU producers. A high prevalence of tet(K) was observed in all of the samples assayed, with percentages of PCR-based positivity that ranged from 80% (samples from Thailand) to 100% (samples from the Netherlands, Belgium and France)...
October 5, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/29027128/continuous-infusion-versus-intermittent-bolus-of-beta-lactams-in-critically-ill-patients-with-respiratory-infections-a-systematic-review-and-meta-analysis
#5
REVIEW
Young R Lee, Pamela D Miller, Saeed K Alzghari, Delilah D Blanco, Jackson D Hager, Kailey S Kuntz
BACKGROUND: Critically ill patients display altered pharmacokinetics and pharmacodynamics and are more likely to be infected with more resistant pathogens. Beta-lactam antibiotics exhibit time-dependent pharmacodynamics; therefore, it is postulated that continuous infusion (CI) may optimize these parameters. OBJECTIVE: To perform a systematic review and meta-analysis of the available literature comparing CI versus intermittent bolus (IB) of beta-lactam antibiotics in critically ill adult patients with respiratory infections to determine if clinical benefits exist...
October 12, 2017: European Journal of Drug Metabolism and Pharmacokinetics
https://www.readbyqxmd.com/read/29021959/constrictive-pericarditis-caused-by-cutibacterium-propionibacterium-acnes-a-case-report-and-review-of-literature
#6
Troels Bek Jensen, Makhmud Abu El Kheyr, Rajesh Mohey
Constrictive and effusive-constrictive pericarditis are rare cardiac disorders. Only rarely are the conditions caused by purulent infection, and even more infrequently by anaerobe bacteria. We describe a case of constrictive - and effusive-constrictive pericarditis due to Cutibacterium (formerly Propionibacterium) acnes in a 75-year old, immunocompetent and previously healthy patient without any predisposition. The patient was successfully treated with subtotal pericardiectomy and beta-lactam antibacterials...
2017: IDCases
https://www.readbyqxmd.com/read/29020364/antimicrobial-resistance-in-gram-negative-rods-causing-bacteremia-in-hematopoietic-stem-cell-transplant-patients-intercontinental-prospective-study-of-infectious-diseases-working-party-of-the-european-bone-marrow-transplantation-group
#7
Diana Averbuch, Gloria Tridello, Jennifer Hoek, Malgorzata Mikulska, Hamdi Akan, Lucrecia Yanez San Segundo, Thomas Pabst, Tülay Özçelik, Galina Klyasova, Irene Donnini, Depei Wu, Zafer Gülbas, Tsila Zuckerman, Aida Botelho de Sousa, Yves Beguin, Aliénor Xhaard, Emmanuel Bachy, Per Ljungman, Rafael de la Camara, Jelena Rascon, Isabel Ruiz Camps, Antonin Vitek, Francesca Patriarca, Laura Cudillo, Radovan Vrhovac, Peter J Shaw, Tom Wolfs, Tracey O'Brien, Batia Avni, Gerda Silling, Firas Al Sabty, Stelios Graphakos, Marja Sankelo, Henrik Sengeloev, Srinivas Pillai, Susanne Matthes, Frederiki Melanthiou, Simona Iacobelli, Jan Styczynski, Dan Engelhard, Simone Cesaro
Background: This intercontinental study aimed to study Gram-negative rods (GNR) resistance in hematopoietic stem cell transplantation (HSCT). Methods: GNR bacteremias occurring during six months post-HSCT (February/2014-May/2015) were prospectively collected, and analysed for rates and risk factors for resistance to fluoroquinolones, non-carbapenem anti-Pseudomonas beta-lactams (non-carbapenems), carbapenems and multidrug-resistance (MDR). Results: Sixty-five HSCT centers from 25 countries (Europe, Australia, Asia) reported data on 655 GNR episodes/704 pathogens in 591 patients (Enterobacteriaceae, 73%; non-fermentatives, 24% and 3% others)...
July 26, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29020162/successful-therapy-of-a-multi-resistant-ebsl-shv-12-producing-and-fluoroquinolone-resistant-salmonella-enterica-subsp-enterica-serovar-typhi-infection-using-combination-therapy-of-meropenem-and-fosfomycin
#8
Carola-Ellen Kleine, Stefan Schlabe, Gunnar T R Hischebeth, Ernst Molitor, Yvonne Pfeifer, Jan-Christian Wasmuth, Ulrich Spengler
We report a traveler who aquired a Salmonella enterica subsp. enterica serovar Typhi strain with resistance against beta-lactams, cephalosporins (ESBL-SHV-12) and quinolones (PMQR qnrB7). After clinical deterioration using meropenem-monotherapy treatment success was achieved after commencement of fosfomycin in conjunction with high-dose meropenem. The case illustrates clinical challenges of multi-resistant S.Typhi.
July 27, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29017750/trends-and-relationship-between-antimicrobial-resistance-and-antibiotic-use-in-xinjiang-uyghur-autonomous-region-china-based-on-a-3-year-surveillance-data-2014-2016
#9
Haishaerjiang Wushouer, Zhao-Xia Zhang, Jian-Hua Wang, Ping Ji, Qing-Fang Zhu, Renagu Aishan, Lu-Wen Shi
PURPOSES: The objective of the study was to identify the trends and relations between antimicrobial resistance (AMR) and antibiotic use in the Xinjiang Uyghur Autonomous Region in Western China from 2014 to 2016. METHODS: A retrospective, descriptive analysis of AMR prevalence, and trends and relations between AMR and antibiotic use during the 3-year period was performed. RESULTS: Third-generation cephalosporin-resistant Escherichia coli was the most prevalent resistant pathogen in terms of both resistance density and resistance proportion...
October 7, 2017: Journal of Infection and Public Health
https://www.readbyqxmd.com/read/29017424/development-of-a-statewide-antibiogram-to-assess-regional-trends-in-antibiotic-resistant-eskape-organisms
#10
Anthony J Guarascio, Laura M Brickett, Timothy J Porter, Nancy D Lee, Erin E Gorse, Jordan R Covvey
BACKGROUND: Hospitals and other facilities utilize antibiograms as tools for optimal antibiotic selection. Currently, no measures compare broad trends on the regional level, despite interest for more comprehensive data, particularly for antibiotic-resistant ESKAPE organisms. OBJECTIVE: To collect and compare regional health-care facility antibiogram data for ESKAPE organisms to form a cumulative antibiogram. METHODS: Health-care facilities were identified using the publicly accessible Pennsylvania Department of Health web site...
January 1, 2017: Journal of Pharmacy Practice
https://www.readbyqxmd.com/read/28993338/activity-of-ceftolozane-tazobactam-and-ceftazidime-avibactam-against-beta-lactam-resistant-pseudomonas-aeruginosa-isolates
#11
Romney M Humphries, Janet A Hindler, Annie Wong-Beringer, Shelley A Miller
Ceftolozane-tazobactam (C/T) and ceftazidime-avibactam (CZA) minimum inhibitory concentrations were evaluated for a collection of 309 beta-lactam resistant isolates of Pseudomonas aeruginosa recovered from three institutions in Los Angeles, CA. Overall, 12.0% of isolates were susceptible to imipenem, 15.9% to meropenem, 20.7% to piperacillin-tazobactam, 24.6% to ceftazidime and 25.9% to cefepime, 72.5% to C/T and 61.8% to CZA. Among C/T-resistant isolates, 9.1% were CZA-susceptible, whereas 36.4% of CZA-resistant isolates were susceptible to C/T...
October 9, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28993173/role-of-mexab-oprm-and-mexxy-oprm-efflux-pumps-and-class-1-integrons-in-resistance-to-antibiotics-in-burn-and-intensive-care-unit-isolates-of-pseudomonas-aeruginosa
#12
Hamid Reza Goli, Mohammad Reza Nahaei, Mohammad Ahangarzadeh Rezaee, Alka Hasani, Hossein Samadi Kafil, Mohammad Aghazadeh, Mojtaba Nikbakht, Younes Khalili
BACKGROUND: The overexpression of efflux pumps and existence of class 1 integrons are the most important mechanisms that contribute to antimicrobial resistance in Pseudomonas aeruginosa especially in burn and Intensive Care Units (ICUs). The present study evaluated the role of MexAB-OprM and MexXY-OprM efflux pumps and class 1 integrons in resistance to antibiotics in burn and ICU isolates of P. aeruginosa. METHODS: Fifteen burn and forty-two ICU isolates were obtained from four hospitals in Northwest Iran...
October 6, 2017: Journal of Infection and Public Health
https://www.readbyqxmd.com/read/28989114/is-a-randomized-trial-of-a-short-course-of-aminoglycoside-added-to-beta-lactam-antibiotics-for-empirical-treatment-in-critically-ill-patients-with-sepsis-justified
#13
David S Y Ong, Cornelis H van Werkhoven, Olaf L Cremer, Guy E Thwaites, Marc J M Bonten
Short-term adjunctive treatment with aminoglycosides in critically ill patients is advocated in guidelines for the empirical treatment of sepsis, despite lack of evidence from randomized trials. A large observational study recently reported more nephrotoxicity and a trend to worse patient outcome in critically ill patients receiving aminoglycosides added to beta-lactam antibiotics. Here, we discuss if a randomized controlled trial to obtain a more definite answer is justified and how it could be performed.
October 5, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28982078/use-of-a-filtering-process-to-remove-solid-waste-and-antibiotic-resistance-genes-from-effluent-of-a-flow-through-fish-farm
#14
Young Beom Kim, Jong Hun Jeon, Sangki Choi, Jingyeong Shin, Yunho Lee, Young Mo Kim
The objective of this study was to investigate reduction in antibiotic resistance genes (ARGs) via targeting solid waste in effluent from a flow-through aquaculture in South Korea. The level of suspended solids in the filtrates was approximately 12.5±2.3mg/L, corresponding to a removal efficiency of 68.8±5.7% irrespective of variations in the size of the filter pores. The total number of particles in the effluent was reduced to the lowest numbers of particles using a filter pore size of 25μm, corresponding to a removal efficiency of 40...
October 2, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28981235/-lower-respiratory-tract-infections-in-immunocompetent-adult
#15
F Jacobs
Lower respiratory tract infections represent one of the main causes of mortality in the world. They essentially consist of bronchitis, acute exacerbations of chronic obstructive bronchopulmonary diseases (COPD) and acute pneumonia. If acute bronchitis is mainly of viral origin, acute exacerbations of COPD and pneumonia are mainly due to a trio of bacteria (Streptococcus pneumoniae, Haemophilus influenzae, and Moraxella catarrhalis). Other pathogens as many viruses and atypical bacteria such as Mycoplasma pneumoniae, Legionella, some Enterobacteriaceae and very rarely Pseudomonas aeruginosa are also implicated...
2017: Revue Médicale de Bruxelles
https://www.readbyqxmd.com/read/28980026/-bacterial-sepsis-diagnostics-and-calculated-antibiotic-therapy
#16
REVIEW
D C Richter, A Heininger, T Brenner, M Hochreiter, M Bernhard, J Briegel, S Dubler, B Grabein, A Hecker, W A Krüger, K Mayer, M W Pletz, D Störzinger, N Pinder, T Hoppe-Tichy, S Weiterer, S Zimmermann, A Brinkmann, M A Weigand, Christoph Lichtenstern
The mortality of patients with sepsis and septic shock is still unacceptably high. An effective antibiotic treatment within 1 h of recognition of sepsis is an important target of sepsis treatment. Delays lead to an increase in mortality; therefore, structured treatment concepts form a rational foundation, taking relevant diagnostic and treatment steps into consideration. In addition to the assumed focus and individual risks of each patient, local resistance patterns and specific problem pathogens must be taken into account for selection of anti-infection treatment...
October 4, 2017: Der Anaesthesist
https://www.readbyqxmd.com/read/28978682/comparison-of-different-phenotypic-approaches-to-screen-and-detect-mecc-harboring-methicillin-resistant-staphylococcus-aureus
#17
André Kriegeskorte, Evgeny A Idelevich, Andreas Schlattmann, Franziska Layer, Birgit Strommenger, Olivier Denis, Gavin K Paterson, Mark A Holmes, Guido Werner, Karsten Becker
Similar to mecA, mecC confers resistance against beta-lactams, leading to the phenotype of a methicillin-resistant Staphylococcus aureus (MRSA). However, mecC-harboring MRSA pose special difficulties in their detection. The aim of this study was to assess and compare different phenotypic systems for screening, identification, and susceptibility testing of mecC-positive MRSA isolates. A well-characterized collection of mecC-positive S. aureus isolates (n = 111) was used for evaluation. Routinely used approaches were studied to determine their suitability to correctly identify mecC-harboring MRSA including three (semi-)automated antimicrobial susceptibility testing (AST) systems and five selective chromogenic agar plates...
October 4, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28969183/meropenem-induced-hypokalemia
#18
T V Anuhya, Raviraj Acharya, Sharath MadhyasthaA, Ram Bhat, Veena Nayak
Meropenam, a beta-lactam antibiotic has been used for severe infections of skin, tissue, intra- abdominal and urogenital infections in hospitalized patients. The common adverse effects reported are diarrhoea, vomiting, rashes and hypersensitivity reactions. Here we report two cases of meropenam induced hypokalemia, wherein, meropenam was prescribed for cellulitis and urinary tract infection in the first and second case respectively. Hypokalemia can manifest as muscular weakness, fatigue, muscle cramps, constipation, ileus, flaccid paralysis, hyporeflexia, hypercapnia, tetany, rhabdomyolysis or respiratory failure...
August 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28965636/management-of-children-with-hypersensitivity-to-antibiotics-and-monoclonal-antibodies
#19
REVIEW
Allison Eaddy Norton, Ana Dioun Broyles
Proper management of drug allergy in children is based on a thorough history, in vitro testing (if available), in vivo testing, and drug challenge. This approach has been well developed with beta-lactam drugs but not with non-beta-lactam drugs and monoclonal antibodies. Children commonly develop rashes during an antibiotic course, which can lead to misdiagnosis of drug allergy. Clinical reactions to monoclonal antibodies vary and are managed depending on the type. A better knowledge of drug reactions that can occur in antibiotic allergy and monoclonal allergy can aid a provider in better management of their drug-allergic pediatric patients...
November 2017: Immunology and Allergy Clinics of North America
https://www.readbyqxmd.com/read/28965632/penicillin-and-beta-lactam-hypersensitivity
#20
REVIEW
Daniel Har, Roland Solensky
Ten percent of patients report penicillin allergy, but more than 90% of these individuals can tolerate penicillins. Skin testing remains the optimal method for evaluation of possible IgE-mediated penicillin allergy and is recommended by professional societies, as the harms for alternative antibiotics include antimicrobial resistance, prolonged hospitalizations, readmissions, and increased costs. Removal of penicillin allergy leads to decreased utilization of broad-spectrum antibiotics, such as fluoroquinolones and vancomycin...
November 2017: Immunology and Allergy Clinics of North America
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