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https://www.readbyqxmd.com/read/29138589/clinical-characteristics-and-outcome-of-toxicity-from-amanita-mushroom-poisoning
#1
Satariya Trakulsrichai, Charuwan Sriapha, Achara Tongpoo, Umaporn Udomsubpayakul, Sunun Wongvisavakorn, Sahaphume Srisuma, Winai Wananukul
Objective: To describe and analyze the clinical characteristics and outcome of amatoxin poisoning cases. Methods: We performed a retrospective cohort study of amatoxin poisoning cases from Ramathibodi Poison Center Toxic Exposure Surveillance System, from May 2013 to August 2015. Results: There were 30 consultations with a total of 55 poisoning cases. Most cases were male and from the north-east region. Hepatitis, acute kidney injury, jaundice, and coagulopathy accounted for 74%, 46...
2017: International Journal of General Medicine
https://www.readbyqxmd.com/read/29112711/pharmacokinetics-and-pharmacodynamic-target-attainment-of-benzylpenicillin-in-an-adult-severely-ill-sub-saharan-african-patient-population
#2
Jeannet C Bos, Reinier M van Hest, Mabor C Mistício, Ginto Nunguiane, Cláudia N Lang, José C Beirão, Ron A A Mathôt, Jan M Prins
Background: In intensive care (ICU) patients, systemic exposure of β-lactam antibiotics can be altered, and positive clinical outcome is associated with increasing fT>MIC ratios. In sub-Saharan African (SSA) hospitals, benzylpenicillin (PEN) is frequently used for the empirical treatment of severe pneumococcal infections. Pharmacokinetic data for non-ICU hospitalized populations are lacking. Methods: We performed a population pharmacokinetic (PPK) study in an adult Mozambican hospital population treated intravenously with PEN from October 2014-November 2015...
November 3, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29074716/antimicrobial-resistance-in-uk-neonatal-units-neonin-infection-surveillance-network
#3
Benjamin Cailes, Christina Kortsalioudaki, Jim Buttery, Santosh Pattnayak, Anne Greenough, Jean Matthes, Alison Bedford Russell, Nigel Kennea, Paul T Heath
OBJECTIVE: To define the susceptibilities of the common causative pathogens of neonatal sepsis in the UK. DESIGN: Retrospective analysis of the prospectively collected neonIN infection surveillance network data between 2005 and 2014. SETTING: 30 neonatal units in the UK. PATIENTS: Newborns admitted to participating neonatal units who return a positive blood, cerebrospinal fluid or urine culture and are treated with at least 5 days of appropriate antibiotics...
October 26, 2017: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/28961884/synergistic-antibiotic-activity-against-planktonic-and-biofilm-embedded-streptococcus-agalactiae-streptococcus-pyogenes-and-streptococcus-oralis
#4
Mercedes Gonzalez Moreno, Andrej Trampuz, Mariagrazia Di Luca
Objectives: To determine the antimicrobial activity against streptococcal biofilm in species mostly isolated from implant-associated infections and examine the effect of enzyme treatment of biofilm on the antimicrobial activity of different antibiotics. Methods: The activities of fosfomycin, rifampicin, benzylpenicillin, daptomycin, gentamicin, levofloxacin, proteinase K and their combinations on planktonic and/or biofilm-embedded standard laboratory strains of Streptococcus agalactiae, Streptococcus pyogenes and Streptococcus oralis were investigated in vitro by standard methods and isothermal microcalorimetry...
November 1, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28910943/-study-on-antibiotic-resistance-of-escherichia-coli-and-enterococcus-colonized-in-intestine-of-neonates-from-neonatal-intensive-care-unit
#5
X F Li, Z J Liu, X Chen, J Li, Z G Cui, B Kan, J R Ma, J H Cui
Objective: To understand the antibiotic resistance of bacteria colonized in intestine of the neonates from neonatal intensive care unit (NICU) and provide evidence to guide clinical antibiotic treatment. Methods: From May, 2014 to May, 2015, a total of 572 stool samples were collected from the neonates of NICU in our hospital. Escherichia coli and Enterococcus were detected with VITEK-2 system. Results: A total of 328 strains of E. coli and 243 strains of Enterococcus were isolated respectively in this study...
September 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28887287/characterization-of-simvastatin-acid-uptake-by-organic-anion-transporting-polypeptide-3a1-oatp3a1-and-influence-of-drug-drug-interaction
#6
Amandla Atilano-Roque, Melanie S Joy
Human organic anion transporting polypeptide 3A1 (OATP3A1) is predominately expressed in the heart. The ability of OATP3A1 to transport statins into cardiomyocytes is unknown, although other OATPs are known to mediate the uptake of statin drugs in liver. The pleiotropic effects and uptake of simvastatin acid were analyzed in primary human cardiomyocytes and HEK293 cells transfected with the OATP3A1 gene. Treatment with simvastatin acid reduced indoxyl sulfate-mediated reactive oxygen species and modulated OATP3A1 expression in cardiomyocytes and HEK293 cells transfected with the OATP3A1 gene...
December 2017: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/28753737/uplc-ms-ms-method-for-therapeutic-drug-monitoring-of-ten-antibiotics-used-in-intensive-care-units
#7
Nahed El-Najjar, Julian Hösl, Thomas Holzmann, Jonathan Jantsch, André Gessner
Large variation in the levels of different ß-lactams and other antibiotics used in critically ill patients has been documented. The aim of this study is to establish and validate a fast ultra-performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS) method for the simultaneous analysis of ten antibiotics (Meropenem, Cefepime, Ceftazidime, Piperacillin, Benzylpenicillin, Ampicillin, Flucloxacillin, Linezolid, and Sulfamethoxazole/Trimethoprim) in human plasma according to European Medicines Agency (EMA) guidelines...
July 28, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/28747897/identification-of-emerging-human-mastitis-pathogens-by-maldi-tof-and-assessment-of-their-antibiotic-resistance-patterns
#8
María Marín, Rebeca Arroyo, Irene Espinosa-Martos, Leónides Fernández, Juan M Rodríguez
Lactational mastitis constitutes one of the main causes of undesired weaning, depriving the mother-infant pair from the benefits of breastfeeding; therefore, this condition should be considered a relevant public health issue. The role of specific microorganisms remains unclear since human milk cultures and antibiotic susceptibility testing (AST) are not routinely performed, despite the fact that this would be key to ensure an early and effective diagnosis and treatment. The objective of this study was to describe the culturable microbial diversity in 647 milk samples from breastfeeding women with clinical symptoms of mastitis by Matrix-Assisted Laser Desorption Ionization Time-of-Flight Mass Spectrometry (MALDI-TOF) VITEK MS technology and to analyze the antimicrobial susceptibility profiles of a collection of isolates from these samples by the VITEK 2 AST system...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28687280/prevalence-and-characteristics-of-clostridium-perfringens-and-clostridium-difficile-in-dogs-and-cats-attended-in-diverse-veterinary-clinics-from-the-madrid-region
#9
Sergio Álvarez-Pérez, José L Blanco, Celine Harmanus, Ed J Kuijper, Marta E García
Despite extensive research on the epidemiology of pathogenic clostridia in dogs and cats, most published studies focus on a selected animal population and/or a single veterinary medical centre. We assessed the burden of Clostridium perfringens and C. difficile shedding by small animals in 17 veterinary clinics located within the Madrid region (Spain) and differing in size, number and features of animals attended and other relevant characteristics. In addition, we studied the genetic diversity and antibiotic susceptibility of recovered isolates...
July 5, 2017: Anaerobe
https://www.readbyqxmd.com/read/28652437/increased-resistance-of-skin-flora-to-antimicrobial-prophylaxis-in-patients-undergoing-hip-revision-arthroplasty
#10
Heinrich M L Mühlhofer, Lukas Deiss, Philipp Mayer-Kuckuk, Florian Pohlig, Norbert Harrasser, Ulrich Lenze, Hans Gollwitzer, Christian Suren, Peter Prodinger, Rüdiger VON Eisenhart-Rothe, Johannes Schauwecker
BACKGROUND/AIM: Prosthetic joint infection (PJI) remains a major complication after total joint replacement and is the primary indication for revision arthroplasty. Specifically, coagulase-negative Staphylococci (CNS) can cause low-grade infections. Despite the use of cephalosporin-based antimicrobial prophylaxis (AMP) and antiseptic treatment at the surgical site, evidence suggests that a significant number of cases of dermal CNS results in low-grade PJI. Thus, this study examined the bacterial colonization and resistance patterns at the surgical site...
July 2017: In Vivo
https://www.readbyqxmd.com/read/28647397/actinomyces-radicidentis-and-actinomyces-haliotis-coccoid-actinomyces-species-isolated-from-the-human-oral-cavity
#11
Rolf Claesson, Ulf Sjögren, Anders Esberg, Malin Brundin, Margareta Granlund
There are few reports on the bacterial species Actinomyces radicidentis in the literature. In this study, putative A. radicidentis isolates were collected from 16 root canal samples from 601 examined patients. The isolates were examined by biochemical tests, 16S rRNA gene sequencing, Arbitrarily-primed (AP-) PCR, antibiotic susceptibility testing, and MALDI-TOF analyses. In parallel, two A. radicidentis reference strains and two putative A. radicidentis isolates from United Kingdom were tested. Sixteen of the 18 isolates were confirmed as A...
June 21, 2017: Anaerobe
https://www.readbyqxmd.com/read/28618388/simultaneous-determination-of-nine-%C3%AE-lactam-antibiotics-in-human-plasma-by-an-ultrafast-hydrophilic-interaction-chromatography-tandem-mass-spectrometry
#12
Alan Abdulla, Soma Bahmany, Rixt A Wijma, Bart C H van der Nagel, Birgit C P Koch
Contemporary β-lactam antibiotic dosing is debatable in severely ill patients, since the occurrence of pathophysiological changes in critical illness can result in great inter-individual variability. Therapeutic drug monitoring (TDM) is a commonly used dosing strategy to optimize exposure and thereby minimize toxicity and maximize the efficacy. Currently, TDM of β-lactam antibiotics is rarely performed, due to poor availability in clinical practice. We describe an ultrafast Hydrophilic-Interaction Chromatography (HILIC) based UPLC-MS/MS method for the determination of amoxicillin, benzylpenicillin, cefotaxime, cefuroxime, ceftazidime, flucloxacillin, imipenem, meropenem and piperacillin in human plasma...
August 15, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28614439/residual-volume-in-vials-of-antibiotics-used-in-pediatrics
#13
Caroline Magna Pessoa Chaves, Carolina Martins Bezerra, Francisca Elisângela Teixeira Lima, Maria Vera Lúcia Moreira Leitão Cardoso, Said Gonçalves da Cruz Fonseca, Viviane Martins da Silva
OBJECTIVE: Quantifying residual volume contained in vials of antibiotics used in pediatrics. METHOD: This is an experiment involving samples from vials of antibiotics used in a pediatric hospital. Residual volume was identified by calculating the difference in weight measurement before and after the vials were washed. Evaluation of the residual volume difference in the vials was determined by the Wilcoxon non-parametric test for a sample and established at a significance level of 5%...
June 12, 2017: Revista da Escola de Enfermagem da U S P
https://www.readbyqxmd.com/read/28566082/-femoral-hemodialysis-catheter-related-bacteremia-due-to-globicatella-sanguinis-challenges-in-species-identification
#14
Elif Aktaş, Nafia Canan Gürsoy, Tamer Sakacı, Yener Koç, Aziz Ahmad Hamidi, Emin Bulut, Duygu Erdemir, Barış Otlu
In this case, catheter-related bacteremia due to Globicatella sanguinis in a 43 years old female patient undergoing hemodialysis with the diagnosis of diabetic nephropathy was presented and the methods in the laboratory diagnosis of the rare opportunistic pathogen, Globicatella cins, were nvestigated. A set of peripheral blood cultures and simultaneous catheter culture was obtained from the patient in third of May 2016. Biochemical tests, Phoenix (Becton Dickinson, USA) and MicroScan (Beckman Coulter, USA) automated systems and matrix assisted laser desorption/ionization-time of flight-mass spectrometry (MALDI-TOF MS) based Microflex MS (Bruker, Daltonics, Germany) and VITEK MS (database v2...
April 2017: Mikrobiyoloji Bülteni
https://www.readbyqxmd.com/read/28559267/penicillin-dried-blood-spot-assay-for-use-in-patients-receiving-intramuscular-benzathine-penicillin-g-and-other-penicillin-preparations-to-prevent-rheumatic-fever
#15
Madhu Page-Sharp, Jonathan Coward, Brioni R Moore, Sam Salman, Lewis Marshall, Timothy M E Davis, Kevin T Batty, Laurens Manning
Rheumatic heart disease (RHD) remains an important global health challenge. Administration of benzathine penicillin (BPG) every 3 to 4 weeks is recommended as a secondary prophylaxis to prevent recurrent episodes of acute rheumatic fever and subsequent RHD. Following intramuscular injection, BPG is hydrolyzed to penicillin G (benzylpenicillin). However, little is known of the pharmacokinetics (PK) of BPG in pediatric populations at high risk of RHD or of the pharmacokinetic-pharmacodynamic relationship between penicillin exposure and clinically relevant outcomes...
August 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28522308/development-of-a-ssdna-aptamer-for-detection-of-residual-benzylpenicillin
#16
A-Young Lee, Na-Reum Ha, In-Pil Jung, Sang-Heon Kim, A-Ru Kim, Moon-Young Yoon
Antibiotics are useful for improving the living conditions of livestock. However, residual antibiotics induce several human diseases such as food-borne illness and infection of carbapenem-resistant Enterobacteriaceae (CRE). In this study, the identification of a benzylpenicillin-specific aptamer was selected by rGO-SELEX (reduced Graphene Oxide-Systematic Evolution of Ligands by EXponential enrichment). A random ssDNA library was incubated with rGO for adsorption and eluted with benzylpenicillin. As a result of the selection process, a DNA aptamer was found that specifically bound to benzylpenicillin with high binding affinity, Kd = 383...
August 15, 2017: Analytical Biochemistry
https://www.readbyqxmd.com/read/28512690/translational-studies-on-a-ready-to-use-intramuscular-injection-of-penethamate-for-bovine-mastitis
#17
I G Tucker, R Jain, F Alawi, K Nanjan, O Bork
Bovine mastitis caused by bacterial infections of the mammary gland (udder) of dairy cows is a costly pathology for the dairy industry due to direct and indirect losses in production. Penethamate, a pro-drug of benzylpenicillin, is used by intramuscular injection (IM). The existing products are powders which must be reconstituted in water-for-injection and this presents difficulties in the field. Penethamate is too unstable to be formulated as an aqueous formulation but a chemically stable suspension formulation was possible in certain oils; however, some literature suggests that such formulations would have unacceptable prolonged release...
May 16, 2017: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/28391717/modulation-of-antibiotic-activity-by-the-hydroalcoholic-extract-from-leaves-of-caryocar-coriaceum-wittm
#18
Luís J de Lacerda Neto, A G B Ramos, M R Kerntopf, H D M Coutinho, L J Quintans-Junior, J R G S Almeida, J Ribeiro-Filho, I R A Menezes
The aim of this study was to identify the presence of tannins, phenols and flavonoids on the hydroalcoholic extract of Caryocar coriaceum leaves (HECCL) and to determine the antioxidant and antibacterial activity of this extract. The extract was tested alone (1024-1 μg/mL) or associated (MIC/8) with several antibiotics in order to identify any antibacterial activity against multiresistant bacterial strains (Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa). The existence of tannins, total phenols (901...
April 9, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28348807/successful-treatment-of-listeria-monocytogenes-prosthetic-valve-endocarditis-using-rifampicin-and-benzylpenicillin-in-combination-with-valve-replacement
#19
Tasnim Hasan, William Chik, Sharon Chen, Jen Kok
Introduction.Listeria monocytogenes is an uncommon cause of prosthetic valve endocarditis (PVE). Recommended antimicrobial therapy typically includes intravenous β-lactams with or without synergistic aminoglycosides. In vitro studies have previously identified antagonism when rifampicin has been used in combination with β-lactams. However, in vivo data of rifampicin use are limited despite its enhanced anti-biofilm activity. Case presentation. A 63-year-old male presented with fever and back pain. L. monocytogenes bacteraemia and bioprosthetic aortic valve endocarditis was confirmed, along with spinal discitis and osteomyelitis...
February 2017: JMM Case Reports
https://www.readbyqxmd.com/read/28348790/streptococcus-pneumoniae-bacteraemia-due-to-parotitis-in-a-patient-with-systemic-sclerosis-and-secondary-sj%C3%A3-gren-s-syndrome
#20
Irene Yuen Lin Yii, Jamie Bee Xian Tan, Warren Weng Seng Fong
INTRODUCTION: Invasive pneumococcal disease is an uncommon and notifiable disease in Singapore. It is often associated with significant morbidity and mortality. We report a rare case of invasive pneumococcal bacteraemia due to parotitis in a patient with systemic sclerosis and secondary Sjögren's syndrome. We also present a retrospective review of Streptococcus pneumoniae bacteraemia cases in Singapore General Hospital from January 2011 to April 2016. CASE PRESENTATION: A 59-year-old Malay lady with a history of systemic sclerosis with secondary Sjögren's syndrome presented with fever and left parotid gland swelling...
October 2016: JMM Case Reports
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