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Macrolide AND pneumonia

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https://www.readbyqxmd.com/read/28821894/assessment-of-genotypic-macrolide-resistance-among-mycoplasma-pneumoniae-infections-in-children-in-singapore
#1
Liat Hui Loo, Han Yang Soong, Matthias Maiwald, Nancy Ws Tee
No abstract text is available yet for this article.
July 2017: Annals of the Academy of Medicine, Singapore
https://www.readbyqxmd.com/read/28811193/a-novel-detection-procedure-for-mutations-in-the-23s-rrna-gene-of-mycoplasma-pneumoniae-with-peptide-nucleic-acid-mediated-loop-mediated-isothermal-amplification-assay
#2
Jun Sakai, Takuya Maeda, Norihito Tarumoto, Kazuhisa Misawa, Shinsuke Tamura, Kazuo Imai, Toshiyuki Yamaguchi, Satoshi Iwata, Takashi Murakami, Shigefumi Maesaki
Rapid and easy detection of a single nucleotide point mutation of bacterial genes, which is directly linked to drug susceptibility, is essential for the proper use of antimicrobial agents. Here, we established a detection method using a peptide nucleic acid mediated loop-mediated amplification (LAMP) assay for macrolide (ML)-susceptible Mycoplasma pneumoniae. This assay specifically detected the absence of missense mutations encoding the central loop of domain V in the gene encoding 23S rRNA, which can reduce the affinity for MLs and subsequently generate ML-resistant strains of M...
August 12, 2017: Journal of Microbiological Methods
https://www.readbyqxmd.com/read/28799307/guiding-principles-for-the-use-of-fluroquinolones-in-out-patient-community-settings-of-india-panel-consensus
#3
Agam Vora, K Krishnaprasad
INTRODUCTION: Respiratory tract infections have been an important cause of morbidity and mortality worldwide that is looming large especially in context of antibiotic resistance that is confronted both by a pulmonologist as well as a general practitioner. A reflection to this trend has been the rising phenomenon of MICs as shown the respiratory pathogens towards conventional antibiotics including macrolides or β lactam/β lactamase inhibitor combinations. Respiratory fluoroquinolones offer broad yet potent cover of respiratory pathogens leading to their obvious choice for empirical therapy for clinical persisters or high risk cases with prior history of antibiotics not-withstanding the clinical concerns in tropical countries...
August 2017: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/28792379/streptococcus-pneumoniae-and-lytic-antibiotic-therapy-are-we-adding-insult-to-injury-during-invasive-pneumococcal-disease-and-sepsis
#4
Lauren April Brown, Andrea M Mitchell, Tim J Mitchell
Streptococcus pneumoniae (S. pneumoniae), otherwise known as 'the pneumococcus', is a fascinating microbe that continues to pose a significant problem to public health. Currently there are no specific National Institute for Clinical Excellence (NICE) or British Thoracic Society (BTS) clinical guidelines referring to the treatment of invasive pneumococcal infection. NICE clinical guidelines suggest the use of lytic β-lactam antibiotic regimens for the management of community-acquired pneumonia and bacterial meningitis; infections for which S...
August 10, 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28782709/mic-distribution-among-wild-type-strains-of-legionella-pneumophila-identifies-a-subpopulation-with-reduced-susceptibility-to-macrolides-owing-to-efflux-pump-genes
#5
Marine Vandewalle-Capo, Clémence Massip, Ghislaine Descours, Joséphine Charavit, Joelle Chastang, Pierre Alain Billy, Sandrine Boisset, Gerard Lina, Christophe Gilbert, Max Maurin, Sophie Jarraud, Christophe Ginevra
Legionnaires' disease is a severe pneumonia mainly caused by Legionella pneumophila, and which is treated by antibiotics. The purpose of this study was to describe the susceptibility of clinical strains of Legionella pneumophila to seven antibiotics used for legionellosis treatment. The minimum inhibitory concentrations (MICs) of 109 well-characterized clinical strains of L. pneumophila serogroup-1 were determined using a broth microdilution method without charcoal and compared to antibiotic-resistant strains selected in vitro...
August 4, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28761583/challenges-of-empirical-antibiotic-therapy-for-community-acquired-pneumonia-in-children
#6
REVIEW
Charlene M C Rodrigues
BACKGROUND: Community-acquired pneumonia (CAP) is a leading cause of morbidity and mortality globally, responsible for more than 14% of deaths in children younger than 5 years of age. Due to difficulties with pathogen identification and diagnostics of CAP in children, targeted antimicrobial therapy is not possible, hence the widespread use of empirical antibiotics, in particular penicillins, cephalosporin, and macrolides. OBJECTIVES: This review aimed to address medical, societal, and political issues associated with the widespread use of empirical antibiotics for CAP in the United Kingdom, India, and Nigeria...
2017: Current Therapeutic Research, Clinical and Experimental
https://www.readbyqxmd.com/read/28760082/mycoplasma-pneumoniae-23s-rrna-a2063g-mutation-does-not-influence-chest-radiography-features-in-children-with-pneumonia
#7
Huan Deng, Jun Rui, Deyu Zhao, Feng Liu
Objective To measure the rate of the A2063G mutation in the Mycoplasma pneumoniae ( M. pneumoniae) 23S rRNA domain V in children with pneumonia and to determine the correlation between radiographic findings and the presence of the A2063G mutation. Methods Patients who were hospitalized with a confirmed diagnosis of M. pneumoniae pneumonia were enrolled in this study. M. pneumoniae strains were collected for genotype analysis. Chest radiography was performed on all children prior to and following macrolide treatment...
January 1, 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28730159/antibiotic-prescribing-for-adults-hospitalized-in-the-etiology-of-pneumonia-in-the-community-study
#8
Sara Tomczyk, Seema Jain, Anna M Bramley, Wesley H Self, Evan J Anderson, Chris Trabue, D Mark Courtney, Carlos G Grijalva, Grant W Waterer, Kathryn M Edwards, Richard G Wunderink, Lauri A Hicks
BACKGROUND: Community-acquired pneumonia (CAP) 2007 guidelines from the Infectious Diseases Society of America (IDSA)/American Thoracic Society (ATS) recommend a respiratory fluoroquinolone or beta-lactam plus macrolide as first-line antibiotics for adults hospitalized with CAP. Few studies have assessed guideline-concordant antibiotic use for patients hospitalized with CAP after the 2007 IDSA/ATS guidelines. We examine antibiotics prescribed and associated factors in adults hospitalized with CAP...
2017: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/28728317/mycoplasma-pneumoniae-associated-hepatitis-without-lung-involvement
#9
Han Taek Jeong, Jae Young Oh, Jung Eun Song, Byung Seok Kim, Chang Hyeong Lee
Mycoplasma pneumoniae (M. pneumoniae) is a major cause of community acquired respiratory infections. And it also causes a number of extrapulmonary manifestations including cardiovascular, dermatological, musculoskeletal, and hematological systems. But, acute hepatitis without lung involvement is rare in adults. Here, we report a case of 32-year-old man who presented with fever, chilling, myalgia, and headache. Biochemical analysis showed severely impaired liver function and leukopenia. Laboratory tests and liver biopsy demonstrated a hepatocellular pattern of M...
July 25, 2017: Korean Journal of Gastroenterology, Taehan Sohwagi Hakhoe Chi
https://www.readbyqxmd.com/read/28702304/oral-versus-intravenous-clarithromycin-in-moderate-to-severe-community-acquired-pneumonia-an-observational-study
#10
Nikolas Rae, Aran Singanayagam, Stuart Schembri, James D Chalmers
OBJECTIVES: British Thoracic Society guidelines recommend clarithromycin in addition to beta-lactam antibiotics for patients with community-acquired pneumonia and CURB-65 score 2-5. Intravenous therapy is commonly used but there are few data on whether oral therapy is equally effective. METHODS: This observational study used propensity matching to compare two groups of patients with moderate to severe community-acquired pneumonia (CURB-65 score 2-5) treated with oral (n = 226) or intravenous (n = 226) clarithromycin on admission...
2017: Pneumonia
https://www.readbyqxmd.com/read/28699429/the-order-of-administration-of-macrolides-and-beta-lactams-may-impact-the-outcomes-of-hospitalized-patients-with-community-acquired-pneumonia-results-from-the-community-acquired-pneumonia-organization
#11
Paula Peyrani, Timothy L Wiemken, Mark L Metersky, Forest W Arnold, William A Mattingly, Charles Feldman, Rodrigo Cavallazzi, Rafael Fernandez-Botran, Jose Bordon, Julio A Ramirez
BACKGROUND: The beneficial effect of macrolides for the treatment of community-acquired pneumonia (CAP) in combination with beta-lactams may be due to their anti-inflammatory activity. In patients with pneumococcal meningitis, the use of steroids improves outcomes only if they are administered before beta-lactams. The objective of this study was to compare outcomes in hospitalized patients with CAP when macrolides were administered before, simultaneously with, or after beta-lactams. METHODS: Secondary data analysis of the Community-Acquired Pneumonia Organization (CAPO) International Cohort Study database...
July 12, 2017: Infectious Diseases
https://www.readbyqxmd.com/read/28698812/treatment-of-community-acquired-pneumonia-a-case-report-and-current-treatment-dilemmas
#12
Glenn Harnett
Resistance to macrolides is rising in the USA and warrants careful consideration when confronted with a patient with suspected pneumonia in the urgent care clinic. This case study exemplifies the potentially serious consequences of treatment failure following prescription of a macrolide for community-acquired bacterial pneumonia. Furthermore, the consequential treatment dilemmas currently faced by physicians are briefly discussed.
2017: Case Reports in Emergency Medicine
https://www.readbyqxmd.com/read/28693067/-chinese-expert-consensus-for-non-antiinfective-effects-and-clinical-use-of-macrolides
#13
J T Lin, Y M Zhang, X Zhou, C Z Wang, M Huang, C T Liu, C G Wu, H Y Wan, W C Yu, Y R Dai
Important/potential value of macrolides has been proved in the management of chronic respiratory diseases by increasing basic and clinical trials.Through three face-to-face discussions, 10 experts examined important data and drafted this consensus related to macrolides: (1) mechanism of non-antiinfective effects; (2) clinical use in chronic respiratory diseases; (3) cautions of long-term use.The mechanism out of non-antiinfective effects includes anti-inflammatory effect, modifying airway secretion, immune-regulation related to antibacterial effect, corticoid saving effect and anti-viral effect...
July 1, 2017: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
https://www.readbyqxmd.com/read/28690643/mechanism-of-resistance-acquisition-and-treatment-of-macrolide-resistant-mycoplasma-pneumoniae-pneumonia-in-children
#14
REVIEW
Hyeon-Jong Yang, Dae Jin Song, Jung Yeon Shim
Mycoplasma pneumoniae pneumonia (MPP) is one of the most common forms of community-acquired pneumonia in children and adolescents. Outbreaks of MPP occur in 3- to 7-year cycles worldwide; recent epidemics in Korea occurred in 2006-2007, 2011, and 2015-2016. Although MPP is known to be a mild, self-limiting disease with a good response to macrolides, it can also progress into a severe and fulminant disease. Notably, since 2000, the prevalence of macrolide-resistant MPP has rapidly increased, especially in Asian countries, recently reaching up to 80%-90%...
June 2017: Korean Journal of Pediatrics
https://www.readbyqxmd.com/read/28686393/-mycoplasma-pneumoniae-update-and-new-challenges
#15
Alexis Dumoulin
Mycoplasma pneumoniae is a frequent cause of community acquired pneumonia, especially in children. Discovered by Eaton in the 1940s, it has long been considered as a virus, in part because of its difficult growth in cultures. M. pneumoniae can cause many complications, some of which are severe such as dermatological lesions or affections of the central nervous system. The laboratory diagnosis of M. pneumoniae is difficult, notably because of the fastidious growth conditions, the persistence of IgM antibody after acute infection and the debated existence of asymptomatic carriers...
October 12, 2016: Revue Médicale Suisse
https://www.readbyqxmd.com/read/28652240/the-non-antibiotic-macrolide-em703-improves-survival-in-a-model-of-quinolone-treated-pseudomonas-aeruginosa-airway-infection
#16
Gopinath Kasetty, Ravi K V Bhongir, Praveen Papareddy, Heiko Herwald, Arne Egesten
Macrolide antibiotics are used as anti-inflammatory agents, e.g. for prevention of exacerbations in COPD and cystic fibrosis. Several studies have shown improved outcomes after addition of macrolides to beta-lactam antibiotics when treating severe community-acquired pneumonia. However, a beneficial effect of macrolides when treating Gram-negative bacterial airway infections, e.g. those caused by Pseudomonas aeruginosa, remains to be shown. Macrolide antibiotics have significant side effects, in particular motility-stimulating activity of the gastrointestinal tract and promotion of bacterial resistance...
June 26, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28648859/ceftriaxone-versus-ceftriaxone-plus-a-macrolide-for-community-acquired-pneumonia-in-hospitalized-patients-with-hiv-aids-a-randomized-controlled-trial
#17
Claudia Figueiredo-Mello, Pontus Naucler, Marinella D Negra, Anna S Levin
OBJECTIVES: Evaluate if treatment with ceftriaxone and a macrolide, improved patient outcome when compared with monotherapy with ceftriaxone, in hospitalized patients with HIV/AIDS with community-acquired pneumonia (CAP). METHODS: Adult patients with HIV hospitalized due to suspected CAP were randomized to receive one of two regimens, ceftriaxone plus macrolide or ceftriaxone plus placebo, at a 1:1 proportion (Brazilian Clinical Trials Registry: RBR-8wtq2b). The primary outcome was in-hospital mortality and the secondary outcomes were mortality within 14 days, need for vasoactive drugs, need for mechanical ventilation, time to clinical stability and length of hospitalization...
June 22, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28646969/things-that-could-be-mycoplasma-pneumoniae
#18
Ruben C A de Groot, Patrick M Meyer Sauteur, Wendy W J Unger, Annemarie M C van Rossum
M. pneumoniae infection gives rise to a wide variety of manifestations. The pathogenesis of secondary manifestations is not always known. Some depend on the direct invasion of M. pneumoniae and others on the indirect effect of M. pneumoniae through pathological immune responses, for instance autoreactive antibodies in Guillain-Barré Syndrome. Diagnosis remains challenging with currently available diagnostic tests, because they do not demonstrate a causal relation due to M. pneumoniae asymptomatic carriage or previous infection...
June 2017: Journal of Infection
https://www.readbyqxmd.com/read/28639230/intracellular-pharmacokinetics-of-antibacterials-and-their-clinical-implications
#19
REVIEW
Federico Pea
The intracellular pharmacokinetics of the different classes of antimicrobials into surrogate markers of tissue accumulation (alveolar macrophages and/or total alveolar cells collected by means of bronchoalveolar lavage or peripheral white blood cells) was reviewed. The aim of this review was to discuss the clinical implications of the intracellular pharmacokinetics of antibacterials, either from the therapeutic or toxicological perspective. The different pharmacokinetic behaviour of antimicrobials within cells is mainly related to their physicochemical properties (hydrophilicity and lipophilicity), and may have several clinical implications...
June 21, 2017: Clinical Pharmacokinetics
https://www.readbyqxmd.com/read/28625123/role-of-the-n-acetylation-polymorphism-in-solithromycin-metabolism
#20
David W Hein, Mark A Doll
AIM: Solithromycin is a new macrolide antibiotic for the potential treatment of bacterial pneumonia. MATERIALS & METHODS: Solithromycin N-acetylation by human NAT1 and NAT2 was investigated following recombinant expression in yeast and in cryopreserved human hepatocytes from rapid, intermediate and slow acetylators. RESULTS: Solithromycin exhibited over twofold higher affinity for recombinant human NAT2 than NAT1. Apparent maximum velocities for the N-acetylation of solithromycin catalyzed by the NAT2 allozyme associated with rapid acetylators were significantly (p < 0...
June 2017: Pharmacogenomics
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