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https://www.readbyqxmd.com/read/28922810/a-shock-and-awe-thioridazine-and-moxifloxacin-combination-based-regimen-for-pulmonary-mycobacterium-avium-intracellulare-complex-disease
#1
Shashikant Srivastava, Devyani Deshpande, Carleton M Sherman, Tawanda Gumbo
Objectives: To develop a thioridazine/moxifloxacin-based combination regimen for treatment of pulmonary infection due to Mycobacterium avium-intracellulare complex (MAC) that kills bacteria faster than the standard treatment regimen. Methods: Monocytes were infected with MAC and inoculated into the hollow-fibre system model for pulmonary MAC disease (HFS-MAC). We co-administered ethambutol plus azithromycin daily for 28 days, to achieve the same human concentration-time profiles that result from standard doses, in three HFS-MAC systems...
September 1, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28922809/a-novel-ceftazidime-avibactam-rifabutin-tedizolid-and-moxifloxacin-cartm-regimen-for-pulmonary-mycobacterium-avium-disease
#2
Devyani Deshpande, Shashikant Srivastava, Jotam G Pasipanodya, Pooi S Lee, Tawanda Gumbo
Objectives: To compare the efficacy of ceftazidime/avibactam plus tedizolid-based combination regimens with the standard therapy of azithromycin, ethambutol and rifabutin for the treatment of pulmonary Mycobacterium avium complex (MAC) disease. Methods: We mimicked the human pulmonary concentration-time profiles of ceftazidime/avibactam and tedizolid in combination, ceftazidime/avibactam, rifabutin, tedizolid and moxifloxacin (CARTM), and the standard regimen and examined microbial kill in triplicate hollow-fibre system model of intracellular pulmonary MAC (HFS-MAC) units...
September 1, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28922808/the-discovery-of-ceftazidime-avibactam-as-an-anti-mycobacterium-avium-agent
#3
Devyani Deshpande, Shashikant Srivastava, Moti L Chapagain, Pooi S Lee, Kayle N Cirrincione, Jotam G Pasipanodya, Tawanda Gumbo
Objectives: To determine if ceftaroline and ceftazidime combined with avibactam are efficacious against pulmonary Mycobacterium avium complex (MAC) disease. Methods: First, we performed a concentration-effect study of ceftaroline and ceftaroline/avibactam against extracellular MAC in test tubes. Given the difficulty of obtaining avibactam at the time of experimentation, we used a single concentration of commercial ceftazidime/avibactam, and two sets of non-treated controls, one with ceftazidime/avibactam and the other without...
September 1, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28922805/failure-of-the-azithromycin-and-ethambutol-combination-regimen-in-the-hollow-fibre-system-model-of-pulmonary-mycobacterium-avium-infection-is-due-to-acquired-resistance
#4
Shashikant Srivastava, Devyani Deshpande, Tawanda Gumbo
Objectives: To investigate the performance of the two backbone drugs in the standard combination therapy regimen in the hollow-fibre system (HFS) model of pulmonary Mycobacterium avium complex (MAC) infection. Methods: Six HFS were inoculated with human-derived monocytes infected with MAC, and treated with 15 mg/kg of ethambutol and 500 mg of azithromycin daily for 28 days to recapitulate the concentration-time profiles seen in the lungs of humans treated with these drugs and doses...
September 1, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28922566/streptococcus-pneumoniae-and-chronic-endobronchial-infections-in-childhood
#5
Kim M Hare, Amanda J Leach, Heidi C Smith-Vaughan, Anne B Chang, Keith Grimwood
Streptococcus pneumoniae (pneumococcus) is the main cause of bacterial pneumonia worldwide and has been studied extensively in this context. However, its role in chronic endobronchial infections and accompanying lower airway neutrophilic infiltration has received little attention. Severe and recurrent pneumonia are risk factors for chronic suppurative lung disease (CSLD) and bronchiectasis; the latter causes considerable morbidity and, in some populations, premature death in children and adults. Protracted bacterial bronchitis (PBB) is another chronic endobronchial infection associated with substantial morbidity...
September 18, 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/28921687/multimodal-treatment-of-a-dog-with-disseminated-cutaneous-viral-papillomatosis
#6
Britt J Levy, Susannah J Sample, Hang Yuan
BACKGROUND: Canine papillomaviruses (CPVs) are associated with varied cutaneous manifestations. Spontaneous resolution typically occurs within one to 12 months. This case report describes multimodal treatment of a dog with severe disseminated papillomatosis. CLINICAL SUMMARY: An eight-month-old, female spayed, mixed breed dog was presented with a two month history of rapidly progressing papillomatosis and lack of response to oral azithromycin therapy. The dog was severely pruritic and malodorous; the weight and growth of lesions had progressed to affect the dog's gait and vision, and led to decreased quality of life...
September 18, 2017: Veterinary Dermatology
https://www.readbyqxmd.com/read/28919674/prevalence-of-enteropathogens-and-their-antibiotic-sensitivity-pattern-in-puppies-with-hemorrhagic-gastroenteritis
#7
A Kokila Priya, M Balagangatharathilagar, D Chandrasekaran, M Parthiban, S Prathaban
AIM: Hemorrhagic gastroenteritis (HGE) ranging from mild to severe forms is commonly encountered in puppies. The aim of the study was to identify the prevalence of common enteropathogens and the antibiotic sensitivity pattern in puppies reported with HGE. MATERIALS AND METHODS: The canine HGE activity index, with little modification, was adopted to identify Grade III/severely affected puppies below 6 months of age. Fecal polymerase chain reaction (PCR) assay was employed to screen and compare the enteropathogens in puppies with hemorrhagic diarrhea and healthy control...
August 2017: Veterinary World
https://www.readbyqxmd.com/read/28919196/inca-c-plasmids-conferring-high-azithromycin-resistance-in-vibrio-cholera
#8
Ruibai Wang, Haican Liu, Xiuqin Zhao, Jie Li, Kanglin Wan
Azithromycin (AZM) is a clinically important antibiotic to Vibrio cholerae especially for inhibiting colonization of V. cholerae in intestine and the treatment of severe cholera in children and pregnant women. One IncA/C plasmid was isolated from both of the high MIC AZM resistant V cholerae strains of the two mainly pathogenic serogroups, O1 and O139. In the 172 predicted ORFs, 16 genes were related to antibiotic resistance in which 5 were well-defined genes associated with macrolide resistance. The 5 macrolide resistant genes disturbed in two clusters, mphR-mrx-mph(K) and mel-mph2, flanking by insertion sequence (IS) and involving two kinds of mechanisms...
September 14, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28914846/-analysis-of-the-efficiency-of-antimicrobial-treatment-for-community-acquired-pneumonia-in-clinical-practice
#9
O V Zhukova, O V Ruina, S V Kononova, T M Konyshkina
AIM: To analyze actual drug consumption based on the defined daily dose (DDD analysis) and to analyze the utilization of drugs based on their proportion of the total defined daily doses (DU90% analysis) for the antimicrobial therapy of community-acquired pneumonia (CAP) in clinical practice at a hospital in Russia. MATERIAL AND METHODS: The investigation materials were the data of 117 case histories of male (51.3%) and female (48.7%) patients hospitalized with CAP at Nizhny Novgorod City Clinical Hospital Five in 2015...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28910562/the-epidemiology-of-trachoma-in-mozambique-results-of-96-population-based-prevalence-surveys
#10
Mariamo Abdala, Carlos C Singano, Rebecca Willis, Colin K Macleod, Sharone Backers, Rebecca M Flueckiger, Anselmo Vilanculos, Dantew Terefe, Moises Houane, Fitsum Bikele, Amir Bedri Kello, Philip Downs, Zulquifla Bay, Laura Senyonjo, Anthony W Solomon
PURPOSE: Surveys are needed to guide trachoma control efforts in Mozambique, with WHO guidelines for intervention based on the prevalence of trachomatous inflammation-follicular (TF) in children aged 1-9 years and the prevalence of trichiasis in adults aged 15 years and above. We conducted surveys to complete the map of trachoma prevalence in Mozambique. METHODS: Between July 2012 and May 2015, we carried out cross-sectional surveys in 96 evaluation units (EUs) covering 137 districts...
September 14, 2017: Ophthalmic Epidemiology
https://www.readbyqxmd.com/read/28904790/prevalence-of-methicillin-resistant-staphylococcus-aureus-mrsa-in-retail-food-in-singapore
#11
Kyaw Thu Aung, Li Yang Hsu, Tse Hsien Koh, Hapuarachchige Chanditha Hapuarachchi, Man Ling Chau, Ramona Alikiiteaga Gutiérrez, Lee Ching Ng
We characterised 227 Staphylococcus aureus isolates from retail food and food handlers' gloves samples obtained through food surveillance and risk assessment studies between 2011 and 2014. Of 227 isolates, five (2.2%) were methicillin-resistant and belonged to sequence types ST80 (n = 3) and ST6 (n = 2). All five isolates belonged to SCCmec type IV, were Panton-Valentine leukocidin (pvl)-negative and staphylococcal enterotoxin genes-positive. Resistance to azithromycin was found in ST80 isolates, in addition to resistance to beta-lactams...
2017: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/28894754/natural-modulators-of-endosomal-toll-like-receptor-mediated-psoriatic-skin-inflammation
#12
REVIEW
Chao-Yang Lai, Yu-Wen Su, Kuo-I Lin, Li-Chung Hsu, Tsung-Hsien Chuang
Psoriasis is a chronic inflammatory autoimmune disease that can be initiated by excessive activation of endosomal toll-like receptors (TLRs), particularly TLR7, TLR8, and TLR9. Therefore, inhibitors of endosomal TLR activation are being investigated for their ability to treat this disease. The currently approved biological drugs adalimumab, etanercept, infliximab, ustekinumab, ixekizumab, and secukizumab are antibodies against effector cytokines that participate in the initiation and development of psoriasis...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28893761/effectiveness-of-expanding-annual-mass-azithromycin-distribution-treatment-coverage-for-trachoma-in-niger-a-cluster-randomised-trial
#13
Abdou Amza, Boubacar Kadri, Beido Nassirou, Sun Y Cotter, Nicole E Stoller, Sheila K West, Robin L Bailey, Travis C Porco, Bruce D Gaynor, Jeremy D Keenan, Thomas M Lietman, Catherine E Oldenburg
BACKGROUND/AIMS: The WHO recommends 3-5 years of annual mass azithromycin distribution with at least 80% treatment coverage to districts with active trachoma prevalence over 10% among children. Here, we assess the efficacy of expanding the coverage target to at least 90% for trachoma control in a mesoendemic region of Niger. METHODS: Twenty-four communities were randomised to a single day of azithromycin distribution with a coverage target of 80% of the community or up to 4 days of treatment, aiming for greater than 90% coverage...
September 11, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28893363/high-levels-of-macrolide-resistant-mycoplasma-genitalium-in-queensland-australia
#14
Ella Trembizki, Cameron Buckley, Cheryl Bletchly, Graeme R Nimmo, David M Whiley
The macrolide azithromycin is recommended for treatment of Mycoplasma genitalium infection; however, M. genitalium strains possessing macrolide resistance-mediating mutations (MRMMs) are increasingly being reported. Here, we used the SpeeDx ResistancePlus MG kit, which provides simultaneous detection of M. genitalium and MRMMs, to assess MRMM carriage among M. genitalium infections in Queensland, Australia. Performance characteristics of the ResistancePlus MG kit for M. genitalium detection were compared to in-house PCR...
September 12, 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28893203/overall-low-extended-spectrum-cephalosporin-resistance-but-high-azithromycin-resistance-in-neisseria-gonorrhoeae-in-24-european-countries-2015
#15
Michelle J Cole, Gianfranco Spiteri, Susanne Jacobsson, Neil Woodford, Francesco Tripodo, Andrew J Amato-Gauci, Magnus Unemo
BACKGROUND: Surveillance of Neisseria gonorrhoeae antimicrobial susceptibility in Europe is performed through the European Gonococcal Antimicrobial Surveillance Programme (Euro-GASP), which additionally provides data to inform the European gonorrhoea treatment guideline; currently recommending ceftriaxone 500 mg plus azithromycin 2 g as first-line therapy. We present antimicrobial susceptibility data from 24 European countries in 2015, linked to epidemiological data of patients, and compare the results to Euro-GASP data from previous years...
September 11, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28890505/a-case-of-community-acquired-pneumonia-due-to-legionella-pneumophila-serogroup-9-in-which-initial-treatment-with-single-dose-oral-azithromycin-appeared-useful
#16
Akihiro Ito, Tadashi Ishida, Hiromasa Tachibana, Yuhei Ito, Takuya Takaiwa, Hiroyuki Fujii, Toru Hashimoto, Hiroshi Nakajima, Junko Amemura-Maekawa
Legionella species are important causative pathogens for severe community-acquired pneumonia (CAP). Most cases of Legionella pneumonia are due to Legionella pneumophila serogroup 1, and CAP due to Legionella pneumophila serogroup 9 is rare. A fourth case of CAP due to Legionella pneumophila serogroup 9 is reported, and initial treatment using single-dose oral azithromycin appeared useful. Azithromycin injection or fluoroquinolone injection is usually recommended for the treatment of Legionella pneumonia, and no previous reports have shown the effectiveness of single-dose oral azithromycin...
September 11, 2017: Japanese Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28889900/a-62-year-old-woman-with-wheezing-respiratory-failure-and-an-abnormal-ct%C3%A2-scan
#17
Peter Hountras, Hector Cajigas
A previously healthy 62-year-old woman was transferred to the ICU from the medical ward with acute bronchospastic respiratory failure requiring intubation and mechanical ventilation. Four weeks before, the patient was vacationing in Arizona and acquired a mildly productive cough as well as mild dyspnea. She presented to an urgent care facility and was diagnosed with community-acquired pneumonia. She received a 5-day course of azithromycin, with partial improvement of her symptoms. The patient returned home 1 week prior to admission, reporting worsening dyspnea, chest pressure, cough, and fever...
September 2017: Chest
https://www.readbyqxmd.com/read/28887570/the-salivary-microbiome-is-consistent-between-subjects-and-resistant-to-impacts-of-short-term-hospitalization
#18
Damien J Cabral, Jenna I Wurster, Myrto E Flokas, Michail Alevizakos, Michelle Zabat, Benjamin J Korry, Aislinn D Rowan, William H Sano, Nikolaos Andreatos, R Bobby Ducharme, Philip A Chan, Eleftherios Mylonakis, Beth Burgwyn Fuchs, Peter Belenky
In recent years, a growing amount of research has begun to focus on the oral microbiome due to its links with health and systemic disease. The oral microbiome has numerous advantages that make it particularly useful for clinical studies, including non-invasive collection, temporal stability, and lower complexity relative to other niches, such as the gut. Despite recent discoveries made in this area, it is unknown how the oral microbiome responds to short-term hospitalization. Previous studies have demonstrated that the gut microbiome is extremely sensitive to short-term hospitalization and that these changes are associated with significant morbidity and mortality...
September 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28885920/antibiotic-therapy-for-acute-watery-diarrhea-and-dysentery
#19
David R Tribble
Diarrheal disease affects a large proportion of military personnel deployed to developing countries, resulting in decreased job performance and operational readiness. Travelers' diarrhea is self-limiting and generally resolves within 5 days; however, antibiotic treatment significantly reduces symptom severity and duration of illness. Presently, azithromycin is the preferred first-line antibiotic for the treatment of acute watery diarrhea (single dose 500 mg), as well as for febrile diarrhea and dysentery (single dose 1,000 mg)...
September 2017: Military Medicine
https://www.readbyqxmd.com/read/28885357/comparative-effectiveness-of-azithromycin-for-treating-scrub-typhus-a-prisma-compliant-systematic-review-and-meta-analysis
#20
REVIEW
Szu-Chia Lee, Yu-Jyun Cheng, Chao-Hsu Lin, Wei-Te Lei, Hung-Yang Chang, Ming-Dar Lee, Jui-Ming Liu, Ren-Jun Hsu, Nan-Chang Chiu, Hsin Chi, Chun-Chih Peng, Te-Lung Tsai, Chien-Yu Lin
BACKGROUND: Scrub typhus is a zoonotic disease that remains an important health threat in endemic areas. Appropriate anti-rickettsial treatment ensures a successful recovery. Doxycycline is a recommended drug, but it is contraindicated in pregnant women and young children. Azithromycin is a safer alternative drug, but its effectiveness remains largely unclear. Herein, we conducted a systematic review and meta-analysis to determine the effectiveness of azithromycin. METHODS: Studies that investigated azithromycin in treating scrub typhus were systematically identified from electronic databases up to December 2016...
September 2017: Medicine (Baltimore)
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