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https://www.readbyqxmd.com/read/28748041/effect-of-azithromycin-on-a-red-complex-polymicrobial-biofilm
#1
Hwei Sze Ong, Orit Oettinger-Barak, Stuart G Dashper, Ivan B Darby, Kheng H Tan, Eric C Reynolds
Azithromycin has recently gained popularity for the treatment of periodontal disease, despite sparse literature supporting efficiency in treating periodontal bacterial biofilms. The aim of this study was to evaluate the effect of azithromycin on biofilms comprised of Porphyromonas gingivalis, Treponema denticola, and Tannerella forsythia in comparison to an amoxicillin and metronidazole combination. P. gingivalis W50, T. denticola ATCC35405, and T. forsythia ATCC43037 grown under anaerobic conditions at 37°C were aliquoted into 96-well flat-bottom plates in different combinations with addition of azithromycin or amoxicillin + metronidazole at various concentrations...
2017: Journal of Oral Microbiology
https://www.readbyqxmd.com/read/28746259/variations-in-antibiotic-and-azithromycin-prescribing-for-children-by-geography-and-specialty-united-states-2013
#2
Katherine E Fleming-Dutra, Alicia Demirjian, Monina Bartoces, Rebecca M Roberts, Thomas H Taylor, Lauri A Hicks
BACKGROUND: Using antibiotics appropriately is critical to slow spread of antibiotic resistance, a major public health problem. Children, especially young children, receive more antibiotics than other age groups. Our objective was to describe antibiotic use in children in the United States (US) and use of azithromycin, which is recommended infrequently for pediatric conditions. METHODS: We used QuintilesIMS Xponent 2013 data to calculate the number and rate of oral antibiotic prescriptions for children by age (0-2, 3-9 and 10-19 years) and agent...
July 19, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28743651/resistance-to-quinolones-cephalosporins-and-macrolides-in-escherichia-coli-causing-bacteremia-in-peruvian-children
#3
Noemí Palma, Maria J Pons, Cláudia Gomes, Judit Mateu, Maribel Riveros, Wilfredo García, Jan Jacobs, Coralith García, Theresa J Ochoa, Joaquim Ruiz
OBJECTIVE: To characterize the β-lactam, quinolone and macrolide resistance levels and mechanisms in 62 Escherichia coli isolates causing children bacteremia. METHODS: Minimal inhibitory concentration of ciprofloxacin, nalidixic acid (NAL) and azithromycin was determined in presence and absence of Phe-Arg-β-Naphtylamyde. Additionally, the susceptibility levels to other 14 antimicrobial agents was established. Extended Spectrum β-lactamases (ESBLs) were identified, while mutations in gyrA and parC genes, presence of transferable mechanisms of quinolone-resistance (TMQR) and macrolide-resistance (TMMR) was also determined...
July 22, 2017: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/28742883/effects-of-oral-florfenicol-and-azithromycin-on-gut-microbiota-and-adipogenesis-in-mice
#4
Rui Li, Hexing Wang, Qingfeng Shi, Na Wang, Zhijie Zhang, Chenglong Xiong, Jianxiang Liu, Yue Chen, Lufang Jiang, Qingwu Jiang
Certain antibiotics detected in urine are associated with childhood obesity. In the current experimental study, we investigated two representative antibiotics detected in urine, florfenicol and azithromycin, for their early effects on adipogenesis, gut microbiota, short-chain fatty acids (SCFAs), and bile acids in mice. Thirty C57BL/6 mice aged four weeks were randomly divided into three groups (florfenicol, azithromycin and control). The two experimental groups were administered florfenicol or azithromycin at 5 mg/kg/day for four weeks...
2017: PloS One
https://www.readbyqxmd.com/read/28741188/-sexually-transmitted-infections-in-germany-the-current-epidemiological-situation
#5
Viviane Bremer, Sandra Dudareva-Vizule, Susanne Buder, Matthias An der Heiden, Klaus Jansen
Sexually transmitted infections (STIs) can impair sexual health. Surveillance and study data were used to provide an overview over STIs in Germany. We estimated 3900 new HIV diagnoses in 2015. Of newly diagnosed infections, 57% were attributed to men who have sex with men (MSM). It was further estimated that there were 3200 new HIV infections and 84,700 people living with HIV in 2015. A total of 6834 syphilis infections were recorded in 2015, which corresponds to an increase of 149% since 2009. The incidence in men was 16-times higher than in women...
July 24, 2017: Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz
https://www.readbyqxmd.com/read/28740486/evolution-of-acinetobacter-baumannii-in-vivo-international-clone-ii-more-resistance-to-ceftazidime-mutation-in-ptk
#6
Xiaoting Hua, Zhihui Zhou, Qing Yang, Qiucheng Shi, Qingye Xu, Jianfeng Wang, Keren Shi, Feng Zhao, Long Sun, Zhi Ruan, Yan Jiang, Yunsong Yu
Acinetobacter baumannii is an important nosocomial pathogen worldwide. A more comprehensive understanding of the within-host genomic evolution of A. baumannii would provide a molecule basis for improving treatment of A. baumannii infection. To understand the evolutionary mechanism facilitating A. baumannii survived in human body, we here reported the genomic analysis of A. baumannii isolated sampled from Chinese patients. We used whole-genome sequence of A. baumannii isolates from the same patient to determine single-nucleotide variants, insertion sequence mapping, and gene change...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28738346/synergistic-activity-of-berberine-with-azithromycin-against-pseudomonas-aeruginosa-isolated-from-patients-with-cystic-fibrosis-of-lung-in-vitro-and-in-vivo
#7
YongTao Li, JianRong Huang, LanJuan Li, LinSheng Liu
BACKGROUND/AIMS: Pseudomonas aeruginosa (PA) is one of the major opportunistic pathogens which can cause chronic lung infection of cystic fibrosis (CF). The formation of PA biofilm promotes CF development and restricts the antimicrobial efficacies of current antibiotics. METHODS: The antimicrobial effects of azithromycin (AZM) and berberine (BER) alone and in combination were evaluated using microdilution method, checkerboard assay, time-kill test, qRT-PCR analysis and absorption method...
July 24, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28737623/an-observational-study-of-severe-pertussis-in-100-infants-%C3%A2-120-days-of-age
#8
James D Cherry, Kristen Wendorf, Brooke Bregman, Deborah Lehman, Delma Nieves, John S Bradley, Wilbert H Mason, Linette Sande-Lopez, Merrick Lopez, Myke Federman, Tempe Chen, Dean Blumberg, Samantha Johnston, Hayden T Schwenk, Peggy Weintrub, Kevin K Quinn, Kathleen Winter, Kathleen Harriman
BACKGROUND: Pertussis in young infants is a unique, severe, afebrile, cough illness that is frequently fatal. METHODS: All pertussis cases ≤ 120 days of age admitted to a pediatric intensive care unit (PICU) in California between October 1, 2013 and April 25, 2015 were evaluated. RESULTS: Of 100 pertussis patients ≤ 120 days of age admitted to PICU's, there were 5 deaths. The white blood cell (WBC) counts in the fatal cases were significantly higher than in the non-fatal cases...
July 20, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28735295/azithromycin-for-episodes-with-asthma-like-symptoms-in-young-children-aged-1-3-years
#9
Katy McConnell, Michael Shields
N/A.
July 22, 2017: Archives of Disease in Childhood. Education and Practice Edition
https://www.readbyqxmd.com/read/28735056/distribution-of-macrolide-resistance-mechanisms-in-bulgarian-clinical-isolates-of-streptococcus-pyogenes-during-the-years-of-2013-2016
#10
Adile A Muhtarova, Raina T Gergova, Ivan G Mitov
Streptococcus pyogenes, or group A streptococcus (GAS), is the main etiological agent of bacterial tonsillopharyngitis and a common cause of a wide variety of other mild to severe infections. OBJECTIVES: of the present study was to determine and evaluate the distribution of genetic mechanisms associated with certain phenotypes of macrolide resistance in Bulgarian GAS isolated during the years of 2013-2016. METHODS: All GAS strains were screened for the macrolide resistance genes erm(A), erm(B) and mef(A), using multiplex polymerase chain reaction (PCR)...
July 19, 2017: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/28733908/assessment-of-cultivable-oral-bacterial-flora-from-important-venomous-snakes-of-india-and-their-antibiotic-susceptibilities
#11
Innus K Shaikh, Prashant P Dixit, Balasaheb S Pawade, Mugdha Potnis-Lele, Babasaheb P Kurhe
Snakebite is a common, frequently devastating, occupational, socio-economic hazard, and it has a great impact on the rural population of India. Snakebite is a major cause of the human morbidity and mortality since ancient times, as it not only affects the victim by systemic envenomation but also by wound infections originating from deadly pathogenic microorganisms from the oral cavity of the offending snake. The pathogens from the oral cavity of the snake tend to initiate an infection, resulting in gas gangrene, soft tissue necrosis, and permanent physical disabilities...
July 21, 2017: Current Microbiology
https://www.readbyqxmd.com/read/28732825/heterogeneity-of-lung-disease-associated-with-nk2-homeobox-1-mutations
#12
Elodie Nattes, Stephanie Lejeune, Ania Carsin, Raphael Borie, Isabelle Gibertini, Juan Balinotti, Nadia Nathan, Sylvain Marchand-Adam, Caroline Thumerelle, Brigitte Fauroux, Emmanuelle Bosdure, Veronique Houdouin, Celine Delestrain, MaleK Louha, Remy Couderc, Alix De Becdelievre, Pascale Fanen, Benoit Funalot, Bruno Crestani, Antoine Deschildre, Jean-Christophe Dubus, Ralph Epaud
We retrospectively studied the clinical presentation, treatment modalities and outcome in 16 patients with heterozygous NKX2-1 mutation associated with chronic lung disease. Twelve different NKX2-1 mutations, including 4 novel mutations, were identified in the 16 patients. Nine patients presented with brain-lung-thyroid syndrome, 3 had neurological and lung symptoms and 4 had only pulmonary symptoms. Ten patients had neonatal respiratory distress, and 6 of them developed infiltrative lung disease (ILD). The other patients were diagnosed with ILD in childhood (n = 3) or in adulthood (n = 3)...
August 2017: Respiratory Medicine
https://www.readbyqxmd.com/read/28730858/management-of-children-with-persistent-group-a-streptococcal-carriage
#13
Maria E Zacharioudaki, Emmanouil Galanakis
Chronic GAS carrier state is best defined as the prolonged presence of group A β-haemolytic Streptococcus (GAS) in the pharynx without evidence of infection or inflammation. Chronic GAS carriers have a low risk of immune mediated complications. Persistent pharyngeal carriage often raises management issues. In this study, we review the evidence on the management of persistent GAS carriage in children and propose a management algorithm. Areas covered: Chronic GAS pharyngeal carriage is quite common affecting 10-20% of school-aged children...
July 21, 2017: Expert Review of Anti-infective Therapy
https://www.readbyqxmd.com/read/28723333/enhanced-prophylaxis-plus-antiretroviral-therapy-for-advanced-hiv-infection-in-africa
#14
James Hakim, Victor Musiime, Alex J Szubert, Jane Mallewa, Abraham Siika, Clara Agutu, Simon Walker, Sarah L Pett, Mutsa Bwakura-Dangarembizi, Abbas Lugemwa, Symon Kaunda, Mercy Karoney, Godfrey Musoro, Sheila Kabahenda, Kusum Nathoo, Kathryn Maitland, Anna Griffiths, Margaret J Thomason, Cissy Kityo, Peter Mugyenyi, Andrew J Prendergast, A Sarah Walker, Diana M Gibb
BACKGROUND: In sub-Saharan Africa, among patients with advanced human immunodeficiency virus (HIV) infection, the rate of death from infection (including tuberculosis and cryptococcus) shortly after the initiation of antiretroviral therapy (ART) is approximately 10%. METHODS: In this factorial open-label trial conducted in Uganda, Zimbabwe, Malawi, and Kenya, we enrolled HIV-infected adults and children 5 years of age or older who had not received previous ART and were starting ART with a CD4+ count of fewer than 100 cells per cubic millimeter...
July 20, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28722638/antibiotic-resistance-in-young-children-in-kilosa-district-tanzania-4-years-after-mass-distribution-of-azithromycin-for-trachoma-control
#15
Evan M Bloch, Sheila K West, Kasubi Mabula, Jerusha Weaver, Zakayo Mrango, Beatriz Munoz, Thomas Lietman, Christian Coles
Mass administration of azithromycin (MDA) is integral to trachoma control. Recent studies suggest that MDA may increase drug-resistant pathogens, yet findings from prior studies suggest little long-term impact on resistance. This disparity may be linked to differences in pre-MDA community-level resistance patterns. We describe carriage prevalence and antibiotic resistance patterns for Streptococcus pneumoniae (Spn) (nasopharyngeal swab collection), Staphylococcus aureus (SA) (nasopharyngeal swabs), and Escherichia coli (EC) (rectal swabs) in 1,047 children ages 1-59 months in a district with MDA cessation 4 years ago...
July 3, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28722569/mass-azithromycin-and-malaria-parasitemia-in-niger-results-from-a-community-randomized-trial
#16
Kieran S O'Brien, Sun Y Cotter, Abdou Amza, Boubacar Kadri, Baido Nassirou, Nicole E Stoller, Zhaoxia Zhou, Chris Cotter, Sheila K West, Robin L Bailey, Philip J Rosenthal, Bruce D Gaynor, Travis C Porco, Thomas M Lietman
Studies designed to determine the effects of mass administration of azithromycin on trachoma have suggested that mass azithromycin distributions may also reduce the prevalence of malaria. These studies have typically examined the impact of a small number of treatments over short durations. In this prespecified substudy of a cluster-randomized trial for trachoma, we compared malaria parasitemia prevalence in 24 communities in Niger randomized to receive either annual or biannual mass azithromycin distributions over 3 years...
June 19, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28719282/travelers-diarrhea-and-other-gastrointestinal-symptoms-among-boston-area-international-travelers
#17
Rhett J Stoney, Pauline V Han, Elizabeth D Barnett, Mary E Wilson, Emily S Jentes, Christine M Benoit, William B MacLeod, Davidson H Hamer, Lin H Chen
AbstractThis prospective cohort study describes travelers' diarrhea (TD) and non-TD gastrointestinal (GI) symptoms among international travelers from the Boston area, the association of TD with traveler characteristics and dietary practices, use of prescribed antidiarrheal medications, and the impact of TD and non-TD GI symptoms on planned activities during and after travel. We included adults who received a pre-travel consultation at three Boston-area travel clinics and who completed a three-part survey: pre-travel, during travel, and post-travel (2-4 weeks after return)...
June 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28718026/solid-phase-extraction-of-multi-class-pharmaceuticals-from-environmental-water-samples-onto-modified-multi-walled-carbon-nanotubes-followed-by-lc-ms-ms
#18
Bojana Lalović, Tatjana Đurkić, Marija Vukčević, Ivona Janković-Častvan, Ana Kalijadis, Zoran Laušević, Mila Laušević
In this paper, pristine and chemically treated multi-walled carbon nanotubes (MWCNTs) were employed as solid-phase extraction sorbents for the isolation and enrichment of multi-class pharmaceuticals from the surface water and groundwater, prior to liquid chromatography-tandem mass spectrometry analysis. Thirteen pharmaceuticals that belong to different therapeutical classes (erythromycin, azithromycin, sulfamethoxazole, diazepam, lorazepam, carbamazepine, metoprolol, bisoprolol, enalapril, cilazapril, simvastatin, clopidogrel, diclofenac) and two metabolites of metamizole (4-acetylaminoantipyrine and 4-formylaminoantipyrine) were selected for this study...
July 17, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28717050/which-azithromycin-regimen-should-be-used-for-treating-mycoplasma-genitalium-a-meta-analysis
#19
REVIEW
Patrick Horner, Suzanne M Ingle, Frederick Garrett, Karla Blee, Fabian Kong, Peter Muir, Harald Moi
BACKGROUND: There is increasing evidence that azithromycin 1 g is driving the emergence of macrolide resistance in Mycoplasma genitalium worldwide. We undertook a meta-analysis of M. genitalium treatment studies using azithromycin 1 g single dose and azithromycin 500 mg on day 1 then 250 mg daily for 4 days (5-day regimen) to determine rates of treatment failure and resistance in both regimens. METHODS: The online databases PubMed and Medline were searched using terms "Mycoplasma genitalium", "macrolide" or "azithromycin" and "resistance" up to April 2016...
July 17, 2017: Sexually Transmitted Infections
https://www.readbyqxmd.com/read/28711222/retrospective-observational-study-of-french-patients-with-cystic-fibrosis-and-a-gly551asp-cftr-mutation-after-1-and-2years-of-treatment-with-ivacaftor-in-a-real-world-setting
#20
Dominique Hubert, Clémence Dehillotte, Anne Munck, Valérie David, Jinmi Baek, Laurent Mely, Stéphane Dominique, Sophie Ramel, Isabelle Danner Boucher, Sylvaine Lefeuvre, Quitterie Reynaud, Virginie Colomb-Jung, Prissile Bakouboula, Lydie Lemonnier
BACKGROUND: Ivacaftor has been shown to improve lung function and body weight in patients with CF and a gating mutation. Real-world evaluation is warranted to examine its safety and effectiveness over the long term. METHODS: A retrospective observational multicentre study collected clinical data in the year before and the 2years after ivacaftor initiation in patients with CF and a Gly551Asp-CFTR mutation. RESULTS: Fifty-seven patients were included...
July 12, 2017: Journal of Cystic Fibrosis: Official Journal of the European Cystic Fibrosis Society
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