Read by QxMD icon Read


Matti Uhari
Enterobacteriaceae can produce β-lactamases that are capable of hydrolysing extended-spectrum cephalosporins, namely cefotaxime, ceftriaxone, ceftizoxime and ceftatzidime. Today there are more than 1,600 different known β-lactamases (1) and, although the first reports of extended spectrum beta-lactamases (ESBL) were from Germany and England, ESBL producing bacteria have been particularly common in France (2). This article is protected by copyright. All rights reserved.
October 20, 2016: Acta Paediatrica
Christian Geier, Jessica Davis, Marc Siegel
A previously healthy 66-year-old woman living in the Mid-Atlantic USA presented to the hospital with lethargy, ataxia and slurred speech. 2 weeks prior she had removed a tick from her right groin. She reported malaise, fevers, diarrhoea, cough and a rash. Physical examination revealed a maculopapular rash on her chest, and lung auscultation revealed bi-basilar rales. Laboratory tests were remarkable for hyponatraemia, leucopenia and thrombocytopenia. Chest X-ray demonstrated bilateral pleural effusions with pulmonary oedema...
October 6, 2016: BMJ Case Reports
Etienne Paris, Tonio Piscopo, Karen Cassar
Actinomycosis is a relatively rare infection caused by Gram-positive bacteria. We present the case of a 54-year-old, previously healthy, male patient with a history of severe penicillin allergy who developed severe pneumonia and empyema caused by Actinomyces meyeri. Presenting symptoms included productive cough, right upper quadrant pain, and chills and rigors. He required drainage of the empyema via tube and prolonged antibiotic treatment with intravenous ceftriaxone for 2 weeks followed by oral doxycycline for 6 months...
2016: Case Reports in Infectious Diseases
Alma Fernanda Sanchez-Maldonado, Mueen Aslam, Cara Service, Claudia Narváez-Bravo, Brent P Avery, Roger Johnson, Tineke H Jones
This study investigated the frequency of Salmonella serovars on pig carcasses at various processing steps in two commercial pork processing plants in Alberta, Canada and characterized phenotypic and genotypic antimicrobial resistance (AMR) and PFGE patterns of the Salmonella isolates. Over a one year period, 1000 swab samples were collected from randomly selected pigs at two slaughter plants. Sampling points were: carcass swabs after bleeding (CSAB), carcass swabs after de-hairing (CSAD, plant A) or skinning (CSASk, plant B), carcass swabs after evisceration (CSAE), carcass swabs after pasteurization (CSAP, plant A) or washing (CSAW, plants B) and retail pork (RP)...
October 7, 2016: International Journal of Food Microbiology
Tal Lorberbaum, Kevin J Sampson, Jeremy B Chang, Vivek Iyer, Raymond L Woosley, Robert S Kass, Nicholas P Tatonetti
BACKGROUND: QT interval-prolonging drug-drug interactions (QT-DDIs) may increase the risk of life-threatening arrhythmia. Despite guidelines for testing from regulatory agencies, these interactions are usually discovered after drugs are marketed and may go undiscovered for years. OBJECTIVES: Using a combination of adverse event reports, electronic health records (EHR), and laboratory experiments, the goal of this study was to develop a data-driven pipeline for discovering QT-DDIs...
October 18, 2016: Journal of the American College of Cardiology
Giulia Landini, Tiziana Di Maggio, Francesco Sergio, Jean-Denis Docquier, Gian Maria Rossolini, Lucia Pallecchi
The effect of high NAC concentrations (10 and 50 mM) on antibiotic activity against 40 strains of respiratory pathogens was investigated. NAC compromised carbapenem activity (mostly imipenem and, to a lesser extent, meropenem and ertapenem) in a dose-dependent fashion. Chemical instability of carbapenems in the presence of NAC was demonstrated. With other antibiotics, 10 mM NAC had no major effects, while 50 mM NAC sporadically decreased (ceftriaxone and aminoglycosides) or increased (penicillins) antibiotic activity...
October 10, 2016: Antimicrobial Agents and Chemotherapy
Andrej Weintraub, Mamun-Ur Rashid, Carl Erik Nord
Solithromycin is a novel fluoroketolide with high activity against bacteria associated with community-acquired respiratory tract infections as well as gonorrhea. However, data on the activity of solithromycin against anaerobic bacteria from the normal intestinal microbiota are scarce. In this study, 1024 Gram-positive and Gram-negative anaerobic isolates from the normal intestinal microbiota were analyzed for in-vitro susceptibility against solithromycin and compared to azithromycin, amoxicillin/clavulanic acid, ceftriaxone, metronidazole and levofloxacin by determining the minimum inhibitory concentration (MIC)...
October 7, 2016: Anaerobe
Carolien M Wind, Maarten F Schim van der Loeff, Magnus Unemo, Rob Schuurman, Alje P van Dam, Henry J C de Vries
BACKGROUND: Performing a test of cure (TOC) could demonstrate success or failure of antimicrobial treatment of Chlamydia trachomatis infection, but recommendations for the timing of a TOC using nucleic acid amplification tests (NAATs) are inconsistent. We assessed time to clearance of C. trachomatis after treatment, using modern RNA- and DNA-based NAATs. METHODS: We analysed data from patients with a C. trachomatis and Neisseria gonorrhoeae coinfection who visited the STI Clinic Amsterdam, The Netherlands, from March through October 2014...
October 11, 2016: BMC Infectious Diseases
Pushpa Bhawan Mal, Kauser Jabeen, Joveria Farooqi, Magnus Unemo, Erum Khan
BACKGROUND: Accurate detection of Neisseria gonorrhoeae antimicrobial resistance is essential for appropriate management and prevention of spread of infection in the community. In this study Calibrated Dichotomous Sensitivity (CDS) and Clinical Laboratory Standards Institute (CLSI) disc diffusion methods were compared with minimum inhibitory concentration (MIC) by Etest in Neisseria gonorrhoeae isolates from Karachi, Pakistan. CDS and CLSI disc diffusion techniques, and Etest for ceftriaxone, penicillin G, spectinomycin and ciprofloxacin against 100 isolates from years 2012-2014 were performed...
October 10, 2016: BMC Microbiology
Patrick C Donnelly, Rebecca M Sutich, Ryan Easton, Oluwatunmise A Adejumo, Todd A Lee, Latania K Logan
BACKGROUND: Ceftriaxone is a third-generation cephalosporin with broad-spectrum activity against both Gram-positive and Gram-negative bacteria. Despite its effectiveness, its use for the treatment of infections in neonatal patients has been limited because of concern about its potential toxicity. OBJECTIVE: Our aim was to review the literature for an association between ceftriaxone and cardiopulmonary events, hyperbilirubinemia, and pseudolithiasis among neonates...
October 7, 2016: Paediatric Drugs
Yusuf S Althobaiti, Fahad S Alshehri, Atiah H Almalki, Youssef Sari
Methamphetamine (METH) is one of the psychostimulants that is co-abused with ethanol. Repeated exposure to high dose of METH has been shown to cause increases in extracellular glutamate concentration. We have recently reported that ethanol exposure can also increase the extracellular glutamate concentration and downregulate the expression of glutamate transporter subtype 1 (GLT-1). GLT-1 is a glial transporter that regulates the majority of extracellular glutamate. A Wistar rat model of METH and ethanol co-abuse was used to examine the expression of GLT-1 as well as other glutamate transporters such as cystine/glutamate exchanger (xCT) and glutamate aspartate transporter (GLAST)...
2016: Frontiers in Neuroscience
Oyebola Fasugba, Brett G Mitchell, George Mnatzaganian, Anindita Das, Peter Collignon, Anne Gardner
This study describes the antimicrobial resistance temporal trends and seasonal variation of Escherichia coli (E. coli) urinary tract infections (UTIs) over five years, from 2009 to 2013, and compares prevalence of resistance in hospital- and community-acquired E. coli UTI. A cross sectional study of E. coli UTIs from patients attending a tertiary referral hospital in Canberra, Australia was undertaken. Time series analysis was performed to illustrate resistance trends. Only the first positive E. coli UTI per patient per year was included in the analysis...
2016: PloS One
Gertrudis Horna, María L Molero, Liliana Benites, Sigri Roman, Luz Carbajal, Erik Mercado, María E Castillo, Rito Zerpa, Eduardo Chaparro, Roger Hernandez, Wilda Silva, Francisco Campos, Andy Saenz, Isabel Reyes, Alex Villalobos, Theresa J Ochoa
Objective To 1) describe the correlation between the zones of inhibition in 1-µg oxacillin disk diffusion (ODD) tests and penicillin and ceftriaxone minimum inhibitory concentrations (MICs) of meningeal and non-meningeal strains of Streptococcus pneumoniae and 2) evaluate the usefulness of the ODD test as a predictor of susceptibility to penicillin in S. pneumoniae and as a quick and cost-effective method easily implemented in a routine clinical laboratory setting. Methods S. pneumoniae isolates from healthy nasopharyngeal carriers less than 2 years old, obtained in a multicentric cross-sectional study conducted in various Peruvian hospitals and health centers from 2007 to 2009, were analyzed...
August 2016: Revista Panamericana de Salud Pública, Pan American Journal of Public Health
Yusuf S Althobaiti, Atiah H Almalki, Sujan C Das, Fahad S Alshehri, Youssef Sari
Repeated exposure to high doses of methamphetamine (METH) is known to alter several neurotransmitters in certain brain regions. Little is known about the effects of ceftriaxone (CEF), a β-lactam antibiotic, known to upregulate glutamate transporter subtype 1, post-treatment on METH-induced depletion of dopamine and serotonin (5-HT) tissue content in brain reward regions. Moreover, the effects of METH and CEF post-treatment on glutamate and glutamine tissue content are not well understood. In this study, Wistar rats were used to investigate the effects of METH and CEF post-treatment on tissue content of dopamine/5-HT and glutamate/glutamine in the nucleus accumbens (NAc) and prefrontal cortex (PFC)...
October 1, 2016: Neuroscience Letters
Willeke F Westendorp, Jan-Dirk Vermeij, Matthijs C Brouwer, Y B W E M Roos, Paul J Nederkoorn, Diederik van de Beek
BACKGROUND: Stroke-associated infections occur frequently and are associated with unfavorable outcome. Previous cohort studies suggest a protective effect of beta-blockers (BBs) against infections. A sympathetic drive may increase immune suppression and infections. AIM: This study is aimed at investigating the association between BB treatment at baseline and post-stroke infection in the Preventive Antibiotics in Stroke Study (PASS), a prospective clinical trial...
October 5, 2016: Cerebrovascular Diseases
Sandeep Kumar, Gaurav Bhanjana, Arvind Kumar, Kapila Taneja, Neeraj Dilbaghi, Ki-Hyun Kim
The use of nanocarriers to enhance drug delivery efficacy has been increasing in the healthcare field due to their tunable surface properties. In this study, ceftriaxone-loaded solid lipid nanoparticles (CL-SLNPs) were synthesized using a water-in-oil-in-water (w/o/w) type double emulsification method. The formulation was optimized using response surface methodology (RSM) and was characterized using transmission electron microscopy (TEM), photon correlation spectroscopy (PCS), and UV-vis and Fourier transform infrared (FTIR) spectroscopy...
September 30, 2016: Chemistry and Physics of Lipids
Carlos Gustavo Trujillo, Mauricio Plata, Juan Ignacio Caicedo, Juan Guillermo Cataño Cataño, Angela Marcela Mariño Alvarez, Diana Castelblanco, Daniela Robledo
OBJECTIVES: To determine the impact of rectal swabs (RSs) on infectious complications (IC) following prostate biopsy (PB). METHODS: A retrospective cohort study was conducted including all patients subjected to PB between 2009 and 2013. Group B consisted of patients with a RS and group A of patients without. RS reported the presence of gram-positive or negative germs, sensitive or resistant to ciprofloxacin. Antimicrobial prophylaxis was adjusted to the result. Frequency of IC in each group was determined...
2016: Urologia Internationalis
Myrella Cariry Lira, Paricia Emília Naves Givisiez, Francisca Geovânia Canafístula De Sousa, Marciane Magnani, Evandro Leite De Souza, Denis Augusto Spricigo, Wondwossen Abebe Gebreyes, Celso José Bruno De Oliveira
INTRODUCTION: Biofilm-associated antimicrobial resistance is of increasing importance to the maintenance and spread of foodborne pathogens in the food industry. This study aimed to investigate the ability to form biofilm and the antimicrobial resistance of staphylococci contaminating small-scale goat milk dairy plants. METHODOLOGY: Sixty isolates were tested for antimicrobial resistance against 20 drugs by the microdilution method. Biofilm-forming traits were assessed by the microtiter plate method (MtP), Congo red agar method (CRA), and icaD gene detection by polymerase chain reaction (PCR)...
September 30, 2016: Journal of Infection in Developing Countries
Malik Asif Humayun, Tristan Richardson, Augustin Brooks
A 17-year-old male presented with diarrhoea and malaise following his return from Kenya and Tunisia. He was managed as a case of traveller's diarrhoea. Stool cultures were negative for pathogenic bacterial growth. Two weeks later he presented with worsening lower back pain. MRI of lumbosacral spine suggested L1 osteomyelitis. CT-guided spinal aspirate grew no organisms and repeat viral serology and blood cultures (including tuberculosis screening) were negative. He was treated with a 6-week course of ceftriaxone...
September 30, 2016: BMJ Case Reports
Iryna Janssen, Paul Cooper, Katrin Gunka, Maja Rupnik, Daniela Wetzel, Ortrud Zimmermann, Uwe Groß
Since data about Clostridium difficile infection in sub-Saharan Africa are scarce, we determined its epidemiology and risk factors in a cross-sectional study in Eikwe, a rural community in Ghana. We tested stool samples from 176 hospitalized patients with diarrhoea and from 131 asymptomatic non-hospitalized individuals for C. difficile and some other enteric pathogens. The overall prevalence rate of C. difficile was 4.9% with ribotype 084 being predominant. With 75% of the isolates, a high rate of nontoxigenic strains was present in symptomatic patients, most of whom had no other identified enteric pathogens...
September 24, 2016: International Journal of Medical Microbiology: IJMM
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"