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https://www.readbyqxmd.com/read/29454171/reactive-oxygen-and-iron-species-monitoring-to-investigate-the-electro-fenton-performances-impact-of-the-electrochemical-process-on-the-biodegradability-of-metronidazole-and-its-by-products
#1
Arwa Aboudalle, Florence Fourcade, Aymen Amin Assadi, Lionel Domergue, Hayet Djelal, Thomas Lendormi, Samir Taha, Abdeltif Amrane
In this study, the monitoring of reactive oxygen species and the regeneration of the ferrous ions catalyst were performed during electro-Fenton (EF) process to highlight the influence of operating parameters. The removal of metronidazole (MTZ) was implemented in an electrochemical mono-compartment batch reactor under various ranges of current densities, initial MTZ and ferrous ions concentrations, and pH values. It was found that under 0.07 mA cm -2 , 0.1 mM of ferrous ions and pH = 3, the efficiency of 100 mg L -1 MTZ degradation and mineralization were 100% within 20 min and 40% within 135 min of electrolysis, respectively...
February 13, 2018: Chemosphere
https://www.readbyqxmd.com/read/29454108/detection-of-b-fragilis-group-and-diversity-of-bft-enterotoxin-and-antibiotic-resistance-markers-cepa-cfia-and-nim-among-intestinal-bacteroides-fragilis-strains-in-patients-with-inflammatory-bowel-disease
#2
Marjan Rashidan, Masoumeh Azimirad, Masoud Alebouyeh, Mehdi Ghobakhlou, Hamid Asadzadeh Aghdaei, Mohammad Reza Zali
We compared frequency of the members of B. fragilis group in 100 and 20 colon biopsy specimens of inflammatory bowel disease (IBD) and non-IBD patients. Agar dilution and PCR were orderly used to detect minimal inhibitory concentration of ampicillin, imipenem, and metronidazole, and carriage of related resistance genes cepA, cfi, and nim. B. fragilis group was detected in 38% of IBD (UC: 36/89; CD:1/11) and 25% (5/20) of non-IBD patients. While B. vulgatus (UC: 20/36, CD: 1/2, control: 1/6); B. fragilis (UC: 18/36, CD: 1/2, control: 5/6); B...
February 14, 2018: Anaerobe
https://www.readbyqxmd.com/read/29453848/postoperative-recurrence-of-crohn-s-disease-pathophysiology-diagnosis-and-treatment
#3
Antonio Di Sario, Paola Sassaroli, Luigi Daretti, Giulia Annulli, Laura Schiada, Giorgia Falcioni, Emanuele Bendia, Simone Antuono, Antonio Benedetti
BACKGROUND: Up to 80% of Crohn`s disease (CD) patients require at least one surgical intervention in their lifetime and up to 70% of these patients develop postoperative endoscopic recurrence within 1 year. The most important predictors of early postoperative recurrence are represented by smoking, prior intestinal surgery, penetrating disease and perianal location. Genetic factors, gut microbiota structure and immunological alterations may be involved in the pathogenesis of postoperative recurrence of CD, although their specific roles have to be determined yet...
February 16, 2018: Current Pharmaceutical Biotechnology
https://www.readbyqxmd.com/read/29452847/primary-antibiotic-resistance-and-its-relationship-with-caga-and-vaca-genes-in-helicobacter-pylori-isolates-from-algerian-patients
#4
Meryem Bachir, Rachida Allem, Abedelkarim Tifrit, Meriem Medjekane, Amine El-Mokhtar Drici, Mustafa Diaf, Kara Turki Douidi
The epidemiology of Helicobacter pylori resistance to antibiotics is poorly documented in Africa and especially in Algeria. The aim of our study was to determine the antibiotic resistance rates, as well as its possible relationship with VacA and CagA virulence markers of isolates from Algerian patients. One hundred and fifty one H. pylori isolate were obtained between 2012 and 2015 from 200 patients with upper abdominal pain. Antimicrobial susceptibility testing was performed for amoxicillin, clarithromycin, metronidazole, ciprofloxacin, rifampicin and tetracycline...
February 13, 2018: Brazilian Journal of Microbiology: [publication of the Brazilian Society for Microbiology]
https://www.readbyqxmd.com/read/29452048/high-frequency-of-metronidazole-and-clarithromycin-resistant-helicobacter-pylori-in-formalin-fixed-paraffin-embedded-gastric-biopsies
#5
B Pourakbari, S Mahmoudi, J Parhiz, R H Sadeghi, M Monajemzadeh, S Mamishi
BACKGROUND: Clarithromycin and metronidazole resistance of Helicobacter pylori is increasing worldwide and has resulted in a loss in the effectiveness of therapeutic regimens. We aimed to evaluate common mutations of resistance genes to clarithromycin (A2143G, A2142G and A2142C) and metronidazole (rdxA and frxA) in H. pylori strains in formalin-fixed, paraffin-embedded gastric biopsies. METHODS: A total of 110 tissue blocks from children suspected of H. pylori infection were included...
February 16, 2018: British Journal of Biomedical Science
https://www.readbyqxmd.com/read/29447900/microbiology-and-antibiotic-therapy-of-subperiosteal-orbital-abscess-in-children-with-acute-ethmoiditis
#6
A Coudert, S Ayari-Khalfallah, P Suy, E Truy
OBJECTIVE: The objective of this study was to investigate the microbiological cultures and the management of acute ethmoiditis complicated by subperiosteal orbital abscess (SPOA) in a pediatric population. METHODS: The medical records of children under 18 years old was performed in a tertiary referral pediatric center from January 2009 to April 2017. Clinical examination, computed tomography scans, medical and surgical treatments were reviewed and compared to other studies in literature...
March 2018: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/29444462/photodynamic-therapy-as-a-new-approach-to-trichomonas-vaginalis-inactivation
#7
Thaisa Helena Silva Fonseca, Marina Alacoque, Fabrício Marcus Silva Oliveira, Betânia Maria Soares, Henrique Vitor Leite, Marcelo Vidigal Caliari, Maria Aparecida Gomes, Haendel Busatti
The emergence of nitroimidazole resistant isolates has been an aggravating factor in the treatment of trichomoniasis, the most common non-viral sexually transmitted disease in the world. This particularity highlights the importance of new technologies that are safe, effective, and have minor side effects or resistance. Hence, we evaluated the effectiveness of photodynamic therapy on the inactivation of Trichomonas vaginalis in vitro. We used methylene blue as a photosensitizing substance, and a light-emitting diode (LED) for irradiation of metronidazole sensitive and resistant strains...
February 11, 2018: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/29437738/an-unusual-presentation-of-pulmonary-embolism-leading-to-infarction-cavitation-abscess-formation-and-bronchopleural-fistulation
#8
Eva Teng, Luke Bennett, Tommaso Morelli, Anindo Banerjee
We report an unusual presentation of pulmonary embolism (PE) where a 58-year-old man first developed symptoms of community-acquired pneumonia. Despite antibiotic therapy, he remained unwell with rising inflammatory markers, general malaise and persistent cough. He developed stony dull percussion and absent breath sounds to his left mid to lower zones. Serial chest x-rays showed progression from lobar consolidation to a large loculated left-sided pleural collection. CT chest showed left-sided lung abscess, empyema and bronchopleural fistulation...
February 5, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29434899/preclinical-study-on-hypoxic-radiosensitizing-effects-of-glycididazole-in-comparison-with-those-of-doranidazole-in-vitro-and-in-vivo
#9
Hironobu Yasui, Nobuo Kubota, Junko Nishizumi, Yuri Sakai, Tohru Yamamori, Osamu Inanami
To overcome the radioresistance of hypoxic cells in solid tumor, numerous types of radiosensitizers specifically against them have been developed. Glycididazole has a chemical structure in which two metronidazole forms are combined, and is widely used as a hypoxic radiosensitizer in China. However, a detailed investigation of its radiosensitizing properties has not been performed. The present study reported a comparative assessment of glycididazole and doranidazole, another hypoxic radiosensitizer. All experiments were performed using the murine squamous cell carcinoma cell line SCCVII...
February 2018: Oncology Letters
https://www.readbyqxmd.com/read/29433863/aspiration-for-acute-pilonidal-abscess-a-cohort-study
#10
Konstantinos Lasithiotakis, Assad Aghahoseini, Dimitra Volanaki, Mark Peter, David Alexander
BACKGROUND: The traditional open incision and drainage of a pilonidal abscess is associated with slow healing and delayed return to normal daily activities. The aim of this study is to assess safety, effectiveness, and patient satisfaction of aspiration followed by antibiotics for a pilonidal abscess. MATERIAL AND METHODS: All patients presenting with an acute pilonidal abscess during the period December 2010 and December 2014 in York Hospital, UK, were treated with bedside aspiration under local anesthetic, followed by oral cefalexin and metronidazole for 7 days...
March 2018: Journal of Surgical Research
https://www.readbyqxmd.com/read/29433149/population-impact-of-drug-interactions-with-warfarin-a-real-world-data-approach
#11
Mar Martín-Pérez, David Gaist, Francisco J de Abajo, Luis A García Rodríguez
OBJECTIVE:  To investigate the population impact of previously reported interactions between warfarin and other drugs on international normalized ratio (INR) levels. METHODS:  Using The Health Improvement Network (THIN), a United Kingdom primary care database, a cohort of warfarin users between 2005 and 2013 (N = 121,962) was followed until the first qualifying prescription for the potential interacting drugs was evaluated. Sixteen sub-cohorts, one for each study drug, and a control sub-cohort of warfarin were ascertained...
February 12, 2018: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/29430411/comparison-of-efficacy-and-pharmacoeconomics-of-two-helicobacter-pylori-eradication-regimens-in-peptic-ulcer-disease
#12
Syeda Zaineb Kubra Hussaini, Syeda Zaineb Humaira Hussaini, Ruheena Yasmeen, Bader Unnisa, Aamir Ali Asgar Syed, Md Nematullah Khan, Syed Ibrahim Hassan
Background: Helicobacter pylori , the cause of most peptic ulcer diseases, infects approximately 50% of the population worldwide. Indian data on cost and effectiveness of the standard first-line therapies for H. pylori eradication are scarce. Thus, the present study was aimed at comparing the cost and efficacy of two standard first-line therapies: Regimen I comprising pantoprazole (40 mg) plus amoxicillin (750 mg) plus clarithromycin (500 mg) (PAC) and Regimen II comprising rabeprazole (20 mg) plus amoxicillin (625 mg) plus metronidazole (200 mg) (RAM)...
January 2018: Perspectives in Clinical Research
https://www.readbyqxmd.com/read/29430091/endodontic-treatment-of-chronically-infected-primary-teeth-using-triple-antibiotic-paste-an-in-vivo-study
#13
G Anuradha Reddy, E Sridevi, A J Sai Sankar, K Pranitha, M J S Pratap Gowd, C Vinay
Aim: Maintenance of primary dentition is imperative for the development of arch form, esthetics, function, mastication, and normal eruption of permanent teeth. Premature loss can cause various problems such as ectopic eruption, space loss for the successor permanent teeth, alterations in speech, and impairment of function. Hence, decayed primary teeth should not be extracted and treated whenever possible. Pulpectomy is generally recommended as a treatment of choice in such cases. The purpose of this study was to evaluate the clinical and radiographic success of pulpectomized primary teeth with chronic infection using a mixture of metronidazole, ciprofloxacin, and minocycline (3MIX)-MP as an intracanal medicament before the obturation...
November 2017: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/29425733/polymicrobial-anaerobic-bacteremia-due-to-atopobium-rimae-and-parvimonas-micra-in-a-patient-with-cancer
#14
Fernando Cobo, Jaime Borrego, Ma Dolores Rojo, José María Navarro-Marí
Atopobium rimae and Parvimonas micra are both Gram-positive anaerobes involved infrequently in human infections. We report a polymicrobial anaerobic bacteremia caused by these microorganisms. A 43-year-old woman receiving coadjuvant chemotherapy due to a retroperitoneal leiomiosarcoma presented with nausea, vomiting, abdominal pain and fever (38 °C). The two blood cultures resulted in isolation of A. rimae and P. micra, being identified at species level by matrix assisted laser desorption time-of-flight mass spectrometry (MALDI-TOF MS) technology with high log scores...
February 6, 2018: Anaerobe
https://www.readbyqxmd.com/read/29424238/the-rise-and-fall-of-metronidazole-for-clostridium-difficile-infection
#15
Elias B Chahine
Clostridium difficile is posing urgent health threats. Older studies have shown that metronidazole and vancomycin are equally effective in the treatment of Clostridium difficile infection (CDI). Given its inexpensive cost and low propensity to select antimicrobial resistant organisms, metronidazole became rapidly the drug of choice despite its pharmacokinetic limitations in the treatment of CDI. However, newer studies demonstrated that metronidazole is inferior to vancomycin, prompting clinicians to change their long-standing position on using metronidazole for mild to moderate infections and on reserving vancomycin for severe infections...
February 1, 2018: Annals of Pharmacotherapy
https://www.readbyqxmd.com/read/29423190/antibiotic-use-in-a-tertiary-healthcare-facility-in-ghana-a-point-prevalence-survey
#16
Appiah-Korang Labi, Noah Obeng-Nkrumah, Edmund Tetteh Nartey, Stephanie Bjerrum, Nii Armah Adu-Aryee, Yaw Adjei Ofori-Adjei, Alfred E Yawson, Mercy J Newman
Background: The global rise and spread of antibiotic resistance is limiting the usefulness of antibiotics in the prevention and treatment of infectious diseases. The use of antibiotic stewardship programs guided by local data on prescribing practices is a useful strategy to control and reduce antibiotic resistance. Our objective in this study was to determine the prevalence and indications for use of antibiotics at the Korle-Bu Teaching Hospital Accra, Ghana. Methods: An antibiotic point prevalence survey was conducted among inpatients of the Korle-Bu Teaching Hospital between February and March 2016...
2018: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/29420592/effects-of-fin-fold-mesenchyme-ablation-on-fin-development-in-zebrafish
#17
Robert L Lalonde, Marie-Andrée Akimenko
The evolution of the tetrapod limb involved an expansion and elaboration of the endoskeletal elements, while the fish fin rays were lost. Loss of fin-specific genes, and regulatory changes in key appendicular patterning genes have been identified as mechanisms of limb evolution, however their contributions to cellular organization and tissue differences between fins and limbs remains poorly understood. During early larval fin development, hoxa13a/hoxd13a-expressing fin fold mesenchyme migrate through the median and pectoral fin along actinotrichia fibrils, non-calcified skeletal elements crucial for supporting the fin fold...
2018: PloS One
https://www.readbyqxmd.com/read/29420227/azithromycin-and-metronidazole-versus-metronidazole-based-therapy-for-the-induction-of-remission-in-mild-to-moderate-paediatric-crohn-s-disease-a-randomised-controlled-trial
#18
Arie Levine, Michal Kori, Jarek Kierkus, Rotem Sigall Boneh, Malgorzata Sladek, Johanna C Escher, Eytan Wine, Baruch Yerushalmi, Jorge Amil Dias, Ron Shaoul, Gigi Veereman Wauters, Mona Boaz, Guila Abitbol, Athos Bousvaros, Dan Turner
OBJECTIVE: Crohn's disease (CD) pathogenesis associated with dysbiosis and presence of pathobionts in the lumen, intracellular compartments and epithelial biofilms. Azithromycin is active in all three compartments. Our goal was to evaluate if azithromycin-based therapy can improve response and induce remission compared with metronidazole alone in paediatric CD. DESIGN: This blinded randomised controlled trial allocated children 5-18 years with 10<Pediatric Crohn's Disease Activity Index (PCDAI)≤40 to azithromycin 7...
February 2, 2018: Gut
https://www.readbyqxmd.com/read/29415794/metronidazole-associated-encephalopathy
#19
Daisuke Taniyama, Taketomo Maruki
No abstract text is available yet for this article.
February 2018: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29413974/air-assisted-dispersive-liquid-liquid-microextraction-with-solidification-of-the-floating-organic-droplets-aa-dllme-sfo-and-uhplc-pda-method-application-to-antibiotics-analysis-in-human-plasma-of-hospital-acquired-pneumonia-patients
#20
Vincenzo Ferrone, Roberto Cotellese, Maura Carlucci, Lorenzo Di Marco, Giuseppe Carlucci
An ultra high-performance liquid chromatographic (UHPLC) method with PDA detection was developed and validated for the simultaneous quantification of metronidazole, meropenem, ciprofloxacin, linezolid and piperacillin in human plasma and applied to patients suffering from hospital acquired pneumonia (HAP). The method uses an air assisted dispersive liquid-liquid microextraction for sample preparation. All parameters in the extraction step, including selection of extractant, amount of extractant, ionic strength, pH, and extraction cycles, were investigated and optimized...
December 24, 2017: Journal of Pharmaceutical and Biomedical Analysis
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