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https://www.readbyqxmd.com/read/28533107/ehs-matrix-incubated-in-media-containing-penicillin-retains-sufficient-concentrations-of-antibiotic-to-inhibit-growth-of-susceptible-microorganisms
#1
Mark P Murphy, Dagmara A Niedziela, Orla M Keane
In studying the interaction between bacteria and host cells in vitro, the latter are frequently cultured on commercially available biotic matrices such as Matrigel® or Geltrex®. To avoid contamination, host cells are commonly grown in the presence of antibiotics. However, we present here the finding that cell culture on such a matrix in the presence of antibiotics interferes with the outcome of subsequent infection experiments by virtue of diminished bacterial survival. By comparing outcomes for penicillin-susceptible and resistant strains of Staphylococcus aureus, we show that residual penicillin remains in the matrix despite the antibiotics' withdrawal from culture...
May 19, 2017: Journal of Microbiological Methods
https://www.readbyqxmd.com/read/28532461/national-post-market-surveillance-assessment-of-veterinary-medicines-in-korea-during-the-past-decade
#2
JeongWoo Kang, Hae-Chul Park, Yang Ho Jang, Md Akil Hossain, Kyunghun Jeong, Mi Young Jeong, Seon-Jong Yun, Sung-Won Park, Dae Gyun Kim, Kwang-Jick Lee
BACKGROUND: Veterinary medicines have been widely used for the prevention and treatment of diseases, growth promotion, and to promote feeding efficacy in livestock. As the veterinary medicine industry has steadily grown, it is crucial to set up a baseline for the quality of medicine as well as the insufficiency or excessiveness of the active ingredients in drug products to ensure the compliance, safety and efficacy of these medicines. Thus, the 10 years data of post-marketing quality control study was summarized to determine the rate and extent of non-compliance of these medicines and to establish baseline data for future quality control measures of veterinary medicine...
May 22, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28531208/phylogenetic-analysis-of-emergent-streptococcus-pneumoniae-serotype-22f-causing-invasive-pneumococcal-disease-using-whole-genome-sequencing
#3
Walter H B Demczuk, Irene Martin, Linda Hoang, Paul Van Caeseele, Brigitte Lefebvre, Greg Horsman, David Haldane, Jonathan Gubbay, Sam Ratnam, Gregory German, Jennifer Daley Bernier, Lori Strudwick, Allison McGeer, George G Zhanel, Gary Van Domselaar, Morag Graham, Michael R Mulvey
Since implementation of the 13-valent polyvalent conjugate vaccine (PCV13) in Canada during 2010, the proportion of PCV13 serotypes causing invasive pneumococcal disease (IPD) has declined from 55% (n = 1492) in 2010 to 31% (n = 764) in 2014. A concurrent increase of non-PCV13 serotypes has occurred and 22F has become the most prevalent serotype in Canada increasing from 7% (n = 183) to 11% (n = 283). Core single nucleotide variant phylogenetic analysis was performed on 137 Streptococcus pneumoniae serotype 22F isolates collected across Canada from 2005-2015...
2017: PloS One
https://www.readbyqxmd.com/read/28530088/-common-treatment-for-acute-tonsillitis-in-the-community
#4
Oded Mazor, Martine Granek-Catarivas, Shmuel Giveon
BACKGROUND: Streptococcal tonsillitis among adults is a common diagnosis. There is wide agreement regarding the recommended treatment, which is Phenoxymethyl Penicillin (Penicillin V) 1000 mg daily (usually 500 mg BID for 10 days). OBJECTIVES: Description of the variability of routine antibiotic treatment prescribed by family physicians in the community for the treatment of acute tonsillitis (which represents a common diagnosis in primary care), and observation of the prescribed antibiotics adherence to the guidelines...
September 2016: Harefuah
https://www.readbyqxmd.com/read/28529888/simultaneous-streptococcus-pneumoniae-empyema-in-fraternal-twins
#5
Alvaro E Galvis, Sana Kamboj, Craig Nakamura
Streptococcus pneumoniae is the most common bacterial cause of community acquired pneumonia. The current trend in Streptococcus pneumoniae infections has been the rise of multi-drug resistance in the last two decades. We present the case of a pair of 16-month old African-American fraternal twins who presented to the emergency room on the same day for symptoms consistent with pneumonia. Upon further examination, the twins showed remarkably similar symptoms, and cultures revealed penicillin-resistant Streptococcus pneumoniae in both twins...
2017: IDCases
https://www.readbyqxmd.com/read/28528779/atypical-articular-presentations-in-indian-children-with-rheumatic-fever
#6
Euden Bhutia, Dinesh Kumar, Mohan Kundal, Sunil Kishore, Atul Juneja
BACKGROUND: The objective of the study was to describe the clinical characteristics of atypical articular presentations during the initial outbreak and recurrence in patients with acute rheumatic fever (ARF) in the paediatric age group. METHODS: This was a retrospective, observational study conducted between January 2012 and December 2014 on all suspected cases of acute rheumatic fever (ARF) fulfilling either WHO 2004 or Australian guidelines with atypical articular manifestations ie, presence of at least one of the following features: duration of symptoms more than three weeks; monoarthritis/arthralgia; involvement of small joints of hand and feet and/or cervical spine and/or hip joint; and, not responding to salicylates in one week...
April 24, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28526836/characterisation-of-antibiotic-prescriptions-for-acute-respiratory-tract-infections-in-danish-general-practice-a-retrospective-registry-based-cohort-study
#7
Rune Aabenhus, Malene Plejdrup Hansen, Laura Trolle Saust, Lars Bjerrum
Inappropriate use of antibiotics is contributing to the increasing rates of antimicrobial resistance. Several Danish guidelines on antibiotic prescribing for acute respiratory tract infections in general practice have been issued to promote rational prescribing of antibiotics, however it is unclear if these recommendations are followed. We aimed to characterise the pattern of antibiotic prescriptions for patients diagnosed with acute respiratory tract infections, by means of electronic prescriptions, labeled with clinical indications, from Danish general practice...
May 19, 2017: NPJ Primary Care Respiratory Medicine
https://www.readbyqxmd.com/read/28525325/epidemiology-of-intramammary-infections-with-staphylococcus-aureus-and-mastitis-streptococci-in-a-dairy-cattle-herd-with-a-history-of-recurrent-clinical-mastitis
#8
H Vlkova, V Babak, I Vrtkova, D Cervinkova, D Marosevic, M Moravkova, Z Jaglic
The aim of the present work was to examine a dairy herd with an anamnesis of recurrent clinical mastitis and decreased milk production. A total of 239 individual cow milk samples originating from asymptomatic cows were collected at four-month intervals and examined mainly for the presence of Staphylococcus aureus and mastitis streptococci using standard cultivation methods. In total, 29.7% and 9.2% samples were positive for S. aureus and mastitis streptococci, respectively. Unlike for mastitis streptococci, the prevalence of animals positive for S...
March 28, 2017: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/28522992/molecular-characterization-of-community-acquired-staphylococcus-aureus-bacteremia-in-young-children-in-southern-mozambique-2001-2009
#9
Delfino Vubil, Marcelino Garrine, Ulla Ruffing, Sozinho Acácio, Betuel Sigaúque, Pedro L Alonso, Lutz von Müller, Mathias Herrmann, Inácio Mandomando
Background: The emergence of community-acquired Staphylococcus aureus infections is increasingly recognized as life threating problem worldwide. In Manhiça district, southern Mozambique, S. aureus is the leading cause of community-acquired bacteremia in neonates. Methods: Eighty-four S. aureus isolates from children less than 5 years admitted to Manhiça District Hospital from 2001 to 2009 were randomly selected and genetically characterized by DNA microarray and spa typing. Antimicrobial susceptibility was determined by VITEK 2...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28522729/draft-genome-sequences-of-two-streptococcus-pneumoniae-serotype-19a-sequence-type-226-clinical-isolates-from-hungary-hu17-with-high-level-beta-lactam-resistance-and-hu15-of-a-penicillin-sensitive-phenotype
#10
Martin Rieger, Dalia Denapaite, Reinhold Brückner, Patrick Maurer, Regine Hakenbeck
The draft genome sequences of two multiple-antibiotic-resistant Streptococcus pneumoniae isolates from Hungary, Hu15 and Hu17, are reported here. Strain Hu15 is penicillin susceptible, whereas Hu17 is a high-level-penicillin-resistant strain. Both isolates belong to the serotype 19A sequence type 226, a single-locus variant (in the ddl locus) of the Hungary(19A)-6 clone.
May 18, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28522372/effective-antimicrobial-activity-of-a-peptide-mutant-cbf-14-2-against-penicillin-resistant-bacteria-based-on-its-unnatural-amino-acids
#11
Wei Kang, Hanhan Liu, Lingman Ma, Mengxiao Wang, Shanshan Wei, Pengbo Sun, Meiling Jiang, Min Guo, Changlin Zhou, Jie Dou
Broad spectrum activities, a unique mode of actions and rare resistant variants make antimicrobial peptide (AMP) a potential alternative to antibiotics. However, AMPs still have limitations in clinical development due to their physiological stability, toxicity and manufacturing costs. Cbf-14, derived from cathelicidin-BF has been proven to be effective against drug-resistant bacteria. Herein, a series of Cbf-14 mutants were designed to overcome these limitations. Design strategies included substitutions of lysine (Lys) or leucine (Leu) with similar residues such as ornithine (Orn) and norleucine (Ile), which are unnatural amino acids, to generate AMPs with enhanced therapeutic potential...
May 15, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28522282/quality-indicators-for-the-use-of-systemic-antibiotics-in-dentistry
#12
Rugzan Jameel Hussein, Robert Krohn, Petra Kaufmann-Kolle, Gerald Willms
BACKGROUND: Risks resulted from using systemic antibiotics such as increasing rates of bacterial resistance, allergy and side effects should be always weighed individually for each patient against any potential benefits. Routine antibiotic prescribing must be therefore discouraged. The Federal Joint Committee ("Gemeinsamer Bundesauschuss", G-BA) commissioned the AQUA-Institute with the development of an external quality assurance procedure, examining systemic antibiotic use in periodontal, conservative and surgical treatments in ambulatory dental health care...
May 15, 2017: Zeitschrift Für Evidenz, Fortbildung und Qualität Im Gesundheitswesen
https://www.readbyqxmd.com/read/28520865/impact-of-an-integrated-antibiotic-allergy-testing-program-on-antimicrobial-stewardship-a-multicenter-evaluation
#13
Jason A Trubiano, Karin A Thursky, Andrew J Stewardson, Karen Urbancic, Leon J Worth, Cheryl Jackson, Wendy Stevenson, Michael Sutherland, Monica A Slavin, M Lindsay Grayson, Elizabeth J Phillips
Background.: Despite the high prevalence of patient-reported antibiotic allergy (so-called antibiotic allergy labels [AALs]) and their impact on antibiotic prescribing, incorporation of antibiotic allergy testing (AAT) into antimicrobial stewardship (AMS) programs (AAT-AMS) is not widespread. We aimed to evaluate the impact of an AAT-AMS program on AAL prevalence, antibiotic usage, and appropriateness of prescribing. Methods.: AAT-AMS was implemented at two large Australian hospitals during a 14-month period beginning May 2015...
May 18, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28520761/antibiotic-use-in-south-korea-from-2007-to-2014-a-health-insurance-database-generated-time-series-analysis
#14
Juhee Park, Euna Han, Soo Ok Lee, Dong-Sook Kim
BACKGROUND: Inappropriate antibiotic use significantly contributes to antibiotic-resistance, resulting in reduced antibiotic efficacy and increasing physical burden and cost of disease. The goal of this study was to explore antibiotic usage patterns in South Korea using 2007-2014 health insurance claims data. METHODS: We used the Health Insurance Review & Assessment Service data, which represents nearly the entire population of South Korea, to discern patterns in antibiotic prescribing practices...
2017: PloS One
https://www.readbyqxmd.com/read/28518018/penicillin-resistance-of-nonvaccine-type-pneumococcus-before-and-after-pcv13-introduction-united-states
#15
Cheryl P Andam, Colin J Worby, Ryan Gierke, Lesley McGee, Tamara Pilishvili, William P Hanage
Introduction of 13-valent pneumococcal conjugate vaccine in the United States was not associated with a significant change in prevalence of penicillin resistance in nonvaccine type serotypes because of the variable success of highly resistant serotypes. Differences in regional serotype distribution and serotype-specific resistance contributed to geographic heterogeneity of penicillin resistance.
June 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28516866/invasive-serotype-35b-pneumococci-including-an-expanding-serotype-switch-lineage-united-states-2015-2016
#16
Sopio Chochua, Benjamin J Metcalf, Zhongya Li, Hollis Walker, Theresa Tran, Lesley McGee, Bernard Beall
We used whole-genome sequencing to characterize 199 nonvaccine serotype 35B pneumococcal strains that caused invasive pneumococcal disease (IPD) in the United States during 2015-2016 and related these findings to previous serotype 35B IPD data obtained by Active Bacterial Core surveillance. Penicillin-nonsusceptible 35B IPD increased during post-pneumococcal 7-valent conjugate vaccine years (2001-2009) and increased further after implementation of pneumococcal 13-valent conjugate vaccine in 2010. This increase was caused primarily by the 35B/sequence type (ST) 558 lineage...
June 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28516842/serotype-distribution-antimicrobial-resistance-and-prevalence-of-pilus-islets-in-pneumococci-following-the-use-of-conjugate-vaccines
#17
Mitsuyo Kawaguchiya, Noriko Urushibara, Meiji Soe Aung, Masaaki Shinagawa, Satoshi Takahashi, Nobumichi Kobayashi
PURPOSE: In Japan, the 7-valent pneumococcal vaccine (PCV7) was introduced in 2010 and, in 2013, the PCV7 was replaced with the 13-valent pneumococcal vaccine (PCV13). This study was conducted to investigate serotypes, antimicrobial resistance and prevalence of pilus islets in pneumococcal isolates from inpatients in a Japanese tertiary hospital. METHODOLOGY: From April 2011 to February 2016, 151 isolates [95 (18 children, 77 adults) and 56 (19 children, 37 adults) in the PCV7 and PCV13 periods, respectively] were collected...
May 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28516494/recommendations-for-approaches-to-meticillin-resistant-staphylococcal-infections-of-small-animals-diagnosis-therapeutic-considerations-and-preventative-measures-clinical-consensus-guidelines-of-the-world-association-for-veterinary-dermatology
#18
REVIEW
Daniel O Morris, Anette Loeffler, Meghan F Davis, Luca Guardabassi, J Scott Weese
BACKGROUND: Multiple drug resistance (MDR) in staphylococci, including resistance to the semi-synthetic penicillinase-resistant penicillins such as meticillin, is a problem of global proportions that presents serious challenges to the successful treatment of staphylococcal infections of companion animals. OBJECTIVES: The objective of this document is to provide harmonized recommendations for the diagnosis, prevention and treatment of meticillin-resistant staphylococcal infections in dogs and cats...
June 2017: Veterinary Dermatology
https://www.readbyqxmd.com/read/28515641/molecular-typing-and-antimicrobial-susceptibility-of-staphylococcus-aureus-strains-isolated-from-raw-milk-cheese-minced-meat-and-chicken-meat-samples
#19
Hayriye Yeşim Can, Mehmet Elmalı, Alper Karagöz
The objectives of this study were: i) to detect the presence of Staphylococcus aureus and methicillin-resistant S. aureus (MRSA) in raw milk, cheese, beef minced meat, and chicken meat samples; ii) to evaluate the antimicrobial susceptibility of the isolates; and iii) to determine clonal relation among the isolates by using pulsed-field gel electrophoresis (PFGE) method. Therefore, a total of 160 food samples were randomly collected between August 2014 and May 2015 in Hatay province, located in the southern Turkey...
2017: Korean Journal for Food Science of Animal Resources
https://www.readbyqxmd.com/read/28512231/survey-on-antimicrobial-prescribing-patterns-in-small-animal-veterinary-practice-in-emilia-romagna-italy
#20
A Barbarossa, J Rambaldi, V Miraglia, M Giunti, G Diegoli, A Zaghini
This investigation provides for the first time a general view of the prescribing patterns of antimicrobials in small animal practice in Emilia Romagna, Italy. In the context of a project on antimicrobial resistance managed by the Regional Veterinary Service, veterinary clinicians were invited to voluntarily complete an online questionnaire. This was designed to gather information on antimicrobial prescribing practices and biosecurity measures and to understand the perception of the issue specific to this region of Italy...
May 16, 2017: Veterinary Record
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