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Macrolide AND pneumonia

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https://www.readbyqxmd.com/read/28215918/molecular-detection-of-genes-responsible-for-macrolide-resistance-among-streptococcus-pneumoniae-isolated-in-north-lebanon
#1
Salam El Ashkar, Marwan Osman, Rayane Rafei, Hassan Mallat, Marcel Achkar, Fouad Dabboussi, Monzer Hamze
In recent years, the increased use of macrolides was linked with the emergence of resistance Streptococcus pneumoniae worldwide. The main aim of this study was to determine the prevalence of S. pneumoniae resistant to macrolides and to identify the macrolide resistance genotypes among clinical isolates collected in North Lebanon. Disk diffusion susceptibility method was performed for 132 strains of S. pneumoniae isolated over a period of 5 years in North Lebanon. Polymerase Chain Reaction followed by pyrosequencing was carried out for confirmation of phenotypic diagnosis...
February 16, 2017: Journal of Infection and Public Health
https://www.readbyqxmd.com/read/28166162/increasing-role-of-macrolide-anti-inflammatory-therapy-in-secondary-organizing-pneumonia
#2
Arjan S Flora, Hermann Simo, Ragheb Assaly
No abstract text is available yet for this article.
January 26, 2017: American Journal of Therapeutics
https://www.readbyqxmd.com/read/28164610/an-investigation-of-the-frequency-of-upper-respiratory-tract-infection-pathogens-and-their-antibiotic-patterns-in-tonsils-and-adenoids-of-adenotonsillectomy-patients
#3
Yasar Nakipoglu, Gulsen Gunel, Deniz Kanliada, Levent Aydemir, Nezahat Gurler, Bulent Gurler
BACKGROUND: We aimed to investigate the potentially pathogenic bacteria of upper respiratory tract infections (URTIs) and their susceptibilities to different antibiotics. METHODS: Two-hundred adenoid and tonsil specimens from 100 patients who had undergone adenotonsillectomy were obtained and analyzed bacteriologically. Identification of the pathogens was made by conventional or commercial identification systems and antibiotic susceptibility tests were carried out by disk diffusion method...
August 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/28161038/treatment-of-infections-caused-by-rhodococcus-equi
#4
REVIEW
Steeve Giguère
Pneumonia caused by Rhodococcus equi remains an important cause of disease and death in foals. The combination of a macrolide (erythromycin, azithromycin, or clarithromycin) with rifampin remains the recommended therapy for foals with clinical signs of infection caused by R equi. Most foals with small, subclinical ultrasonographic pulmonary lesions associated with R equi recover without therapy, and administration of antimicrobial agents to these subclinically affected foals does not hasten lesion resolution relative to administration of a placebo...
February 1, 2017: Veterinary Clinics of North America. Equine Practice
https://www.readbyqxmd.com/read/28148730/a-multicenter-collaborative-to-improve-care-of-community-acquired-pneumonia-in-hospitalized-children
#5
Kavita Parikh, Eric Biondi, Joanne Nazif, Faiza Wasif, Derek J Williams, Elizabeth Nichols, Shawn Ralston
BACKGROUND AND OBJECTIVES: The Value in Inpatient Pediatrics Network sponsored the Improving Care in Community Acquired Pneumonia collaborative with the goal of increasing evidence-based management of children hospitalized with community acquired pneumonia (CAP). Project aims included: increasing use of narrow-spectrum antibiotics, decreasing use of macrolides, and decreasing concurrent treatment of pneumonia and asthma. METHODS: Data were collected through chart review across emergency department (ED), inpatient, and discharge settings...
February 1, 2017: Pediatrics
https://www.readbyqxmd.com/read/28132873/detection-of-macrolide-resistance-genes-in-culture-negative-specimens-from-bangladeshi-children-with-invasive-pneumococcal-diseases
#6
Md Hasanuzzaman, Roly Malaker, Maksuda Islam, Abdullah H Baqui, Gary L Darmstadt, Cynthia G Whitney, Samir K Saha
OBJECTIVES: In recent years, an increasing prevalence of macrolide resistance among pneumococci in Bangladesh has been observed. However, the scenario remains incomplete, as few isolates (<1%) are available from pneumonia cases and most pneumococcal meningitis cases (>80%) are culture-negative. This study optimised a triplex PCR method to detect macrolide resistance genes (MRGs) (mefA and ermB) and cpsA from culture-negative pneumococcal cases to predict the prevalence and level of macrolide resistance...
January 26, 2017: Journal of Global Antimicrobial Resistance
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
#7
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/28107399/changes-in-molecular-characteristics-of-mycoplasma-pneumoniae-in-clinical-specimens-from-children-in-beijing-between-2003-and-2015
#8
Hongmei Sun, Guanhua Xue, Chao Yan, Shaoli Li, Hanqing Zhao, Yanling Feng, Liqiong Wang
The molecular characteristics of 480 Mycoplasma pneumoniae polymerase chain reaction-positive specimens (331 were previously reported and 149 were newly reported) collected from pediatric patients in Beijing, China, between 2003 and 2015 were analyzed. Genotype M4-5-7-2/P1 were the most prevalent across the 13-year study period, although the isolation and mutation rates for this genotype varied between the periods 2003-2007, 2008-2013, and 2014-2015. In addition, there was a close association between the M4-5-7-2 genotype and macrolide resistance...
2017: PloS One
https://www.readbyqxmd.com/read/28103180/fluoroquinolone-macrolide-and-ketolide-resistance-in-haemophilus-parainfluenzae-from-south-africa
#9
Regina Esinam Abotsi, Usha Govinden, Krishnee Moodley, Sabiha Essack
Fluoroquinolones and ketolides are among the drugs of choice for the treatment of Haemophilus parainfluenzae infections. There has been a report of an emerging fluoroquinolone and telithromycin resistance in H. parainfluenzae isolates from the private sector of KwaZulu-Natal Province of South Africa that necessitates molecular investigation. The aim of this study is to characterize these resistance delineating mutations in genes commonly associated with reduced susceptibility. Ten H. parainfluenzae isolates retrieved from the sputum of 10 patients with H...
January 19, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/28074049/in-vitro-antibacterial-activity-of-%C3%AE-methoxyimino-acylide-derivatives-against-macrolide-resistant-pathogens-and-mutation-analysis-in-23s-rrna
#10
Hiroyuki Sugiyama, Ippei Yoshida, Mayumi Ueki, Katsuhiko Tanabe, Akira Manaka, Keiichi Hiramatsu
We characterized in vitro activities of α-methoxyimino acylides against macrolide-resistant clinical isolates of Streptococcus pneumoniae, Streptococcus pyogenes and Mycoplasma pneumoniae with ribosome modification or substitution and selected acylide-resistant mutants to clarify the binding point of the acylides. The acylides had low MICs against erm(B) gene-containing S. pneumoniae and S. pyogenes (MIC90s, 1-4 μg ml(-1)). For M. pneumoniae, although they had poor potencies against macrolide-resistant strains with the A2058G (Escherichia coli numbering) mutation in 23S rRNA (MICs, >32 μg ml(-1)), one of them showed in vitro activities against macrolide-resistant strains with the A2058U or A2059G mutations (MICs, 0...
January 11, 2017: Journal of Antibiotics
https://www.readbyqxmd.com/read/28068956/cost-effectiveness-of-antibiotic-treatment-strategies-for-community-acquired-pneumonia-results-from-a-cluster-randomized-cross-over-trial
#11
Cornelis H van Werkhoven, Douwe F Postma, Marie-Josee J Mangen, Jan Jelrik Oosterheert, Marc J M Bonten
BACKGROUND: To determine the cost-effectiveness of strategies of preferred antibiotic treatment with beta-lactam/macrolide combination or fluoroquinolone monotherapy compared to beta-lactam monotherapy. METHODS: Costs and effects were estimated using data from a cluster-randomized cross-over trial of antibiotic treatment strategies, primarily from the reduced third payer perspective (i.e. hospital admission costs). Cost-minimization analysis (CMA) and cost-effectiveness analysis (CEA) were performed using linear mixed models...
January 10, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28064542/antibiotic-treatment-patterns-costs-and-resource-utilization-among-patients-with-community-acquired-pneumonia-a-us-cohort-study
#12
Christopher J Llop, Edward Tuttle, Glenn S Tillotson, Kerry LaPlante, Thomas M File
OBJECTIVES: The current treatment options for patients with community-acquired pneumonia (CAP) often present a trade-off between the potential for treatment failure and safety concerns. We set out to investigate real-world outcomes associated with the use of currently available antimicrobial treatment options for CAP in both the outpatient and inpatient (non-intensive care unit [ICU]) settings. METHODS: This claims-based retrospective study included adult patients diagnosed with CAP and treated with antibiotic therapies, including any oral fluoroquinolone, macrolide, or beta-lactam monotherapy in the outpatient setting, and intravenous (IV) levofloxacin or IV azithromycin/ceftriaxone in the inpatient setting...
February 2017: Hospital Practice (Minneapolis)
https://www.readbyqxmd.com/read/28060039/epidemiology-and-molecular-characteristics-of-mycoplasma-pneumoniae-during-an-outbreak-of-m-pneumoniae-associated-stevens-johnson-syndrome
#13
Louise K Francois Watkins, Daniel Olson, Maureen H Diaz, Xia Lin, Alicia Demirjian, Alvaro J Benitez, Jonas M Winchell, Christine C Robinson, Kirk A Bol, Mary P Glodé, Samuel R Dominguez, Lisa A Miller, Preeta K Kutty
BACKGROUND: An increase in Mycoplasma pneumoniae-associated Stevens-Johnson syndrome (SJS) cases at a Colorado pediatric hospital led to an outbreak investigation. We describe the epidemiologic and molecular characteristics of M. pneumoniae among SJS case-patients and surrounding community members during the outbreak. METHODS: M. pneumoniae PCR-positive respiratory specimens from 5 Colorado hospitals and 4 referral laboratories underwent confirmatory PCR testing; positive specimens then underwent multilocus variable-number tandem-repeat analysis (MLVA) and macrolide resistance testing...
January 3, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28039377/detection-of-serotype-distribution-and-drug-resistance-of-streptococcus-pneumoniae-isolated-from-pediatric-patients
#14
Junrong Wang, Fenqin Liu, Peiran Ao, Xianneng Li, Haixiao Zheng, Di Wu, Nina Zhang, Junping Yu, Junhui Yuan, Xiuying Wu
OBJECTIVE: To analyze the serotype distribution and drug resistance of Streptococcus pneumoniae isolated from pediatric patients in a Chinese hospital. METHODS: From October 2011 to May 2014, we collected 284 isolates (including 217 noninvasive and 67 invasive strains). We tested the antimicrobial susceptibility of these specimens using the Epsilomer test and disk diffusion method, and the expression of macrolide resistant genes ermB and mefA by polymerase chain reaction...
December 29, 2016: Laboratory Medicine
https://www.readbyqxmd.com/read/28028949/clarithromycin-decreases-il-6-concentration-in-serum-and-bal-fluid-in-patients-with-cryptogenic-organizing-pneumonia
#15
Elżbieta Radzikowska, Adriana Roży, Paulina Jagus, Małgorzata Polubiec-Kownacka, Elżbieta Wiatr, Joanna Chorostowska-Wynimko, Kazimierz Roszkowski-Śliż
BACKGROUND: Inflammatory cytokines are involved in the development of cryptogenic organizing pneumonia (COP). It has been shown that macrolides inhibit cytokine production in the alveolar macrophages of COP patients. OBJECTIVES: The aim of the study was to assess the concentrations of interleukin 1β (IL-1β), IL-6, IL-8 and transforming growth factor β (TGF-β) in serum and in bronchoalveolar lavage fluid (BAL-f) in COP patients treated with clarithromycin (CAM)...
September 2016: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/28006650/rise-of-multidrug-resistant-non-vaccine-serotype-15a-streptococcus-pneumoniae-in-the-united-kingdom-2001-to-2014
#16
Carmen Sheppard, Norman K Fry, Shazad Mushtaq, Neil Woodford, Rosy Reynolds, Regina Janes, Rachel Pike, Robert Hill, Maimuna Kimuli, Peter Staves, Michel Doumith, Timothy Harrison, David M Livermore
Conjugate vaccines have reduced pneumococcal disease in vaccinated children and unvaccinated adults, but non-vaccine serotypes are of concern, particularly if antibiotic resistant. We reviewed Streptococcus pneumoniae collected via: (i) the British Society for Antimicrobial Chemotherapy (BSAC) surveillances from 2001-2014; (ii) Public Health England's (PHE) invasive isolate surveillance from 2005-2014 and (iii) referral to PHE for resistance investigation from 2005-2014. Serotype 15A increased in all series, with many representatives showing triple resistance to macrolides, tetracyclines and penicillin...
December 15, 2016: Euro Surveillance: Bulletin Européen sur les Maladies Transmissibles, European Communicable Disease Bulletin
https://www.readbyqxmd.com/read/27994923/microbiological-features-of-upper-respiratory-tract-infections-in-bulgarian-children-for-the-period-1998-2014
#17
Raina Tzvetanova Gergova, Guergana Petrova, Stefan Gergov, Petko Minchev, Ivan Mitov, Tanya Strateva
BACKGROUND: Across the globe, upper respiratory tract infections (URTIs) are the most prevalent cause of morbidity in childhood. AIMS: The aim of our study is to analyze the incidence and etiology of bacterial URTIs in Bulgarian children, as well as the increasing antimicrobial resistance to the most common etiologic agents over a period of 17 years. STUDY DESIGN: Retrospective study. METHODS: The study material comprised the data from 4768 patients (aged 1-16 years) with URTI during the period from 1998-2014...
November 2016: Balkan Medical Journal
https://www.readbyqxmd.com/read/27965070/fluoroquinolones-or-macrolides-in-combination-with-%C3%AE-lactams-in-adult-patients-hospitalized-with-community-acquired-pneumonia-a-systematic-review-and-meta-analysis
#18
REVIEW
Konstantinos Z Vardakas, Kyriakos K Trigkidis, Matthew E Falagas
OBJECTIVE: The best treatment option for hospitalized patients with community-acquired pneumonia (CAP) has not been defined. The effectiveness of β-lactam/fluoroquinolone (BLFQ) vs β-lactam/macrolide (BLM) combination for the treatment of patients with CAP was evaluated. METHODS: PubMed, Scopus and the Cochrane Library were searched for observational cohort studies, non-randomized and randomized controlled trials providing data for patients with CAP receiving BLM or BLFQ...
December 10, 2016: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/27960214/principles-of-antibiotic-management-of-community-acquired-pneumonia
#19
Michael T Bender, Michael S Niederman
Community-acquired pneumonia (CAP) encompasses a broad spectrum of disease severity and may require outpatient, inpatient, or intensive care management. Successful treatment hinges on expedient delivery of appropriate antibiotic therapy tailored to both the likely offending pathogens and the severity of disease. This review summarizes key principles in starting treatment and provides recommended empiric therapy regimens for each site of care. In addition, we discuss the antimicrobial and anti-inflammatory role macrolides play in CAP, as well as specific information for managing individual CAP pathogens such as community-acquired methicillin-resistant Staphylococcus aureus and drug-resistant Streptococcus pneumoniae...
December 2016: Seminars in Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/27960207/antibiotic-resistance-in-community-acquired-pneumonia-pathogens
#20
Richard G Wunderink, Yudong Yin
The overwhelming majority of cases of community-acquired pneumonia (CAP) can be treated with the standard antibiotic regimens of a macrolide and cephalosporin or a fluoroquinolone. Despite high rates, current levels of β-lactam resistance generally do not result in treatment failure for patients with CAP when appropriate agents and doses are used. Following the introduction of the pneumococcal conjugate vaccines, the incidence of invasive pneumococcal disease declined drastically, coinciding with a decrease in penicillin resistance...
December 2016: Seminars in Respiratory and Critical Care Medicine
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