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https://www.readbyqxmd.com/read/29332624/-not-all-exacerbations-of-chronic-obstructive-pulmonary-disease-should-be-treated-with-antibiotics
#1
Stefan Kern Nielsen, Peter Lange
This review gives an update on antibiotic treatment of exacerbation of chronic obstructive pulmonary disease (COPD). Patients who do not need hospital admission and do not present with purulent sputum nor increased levels of C reactive protein/procalcitonin have no beneficial effect of antibiotic treatment. Those with severe COPD and increased sputum purulence should be treated with antibiotics, and first-line treatment should be amoxicillin, which is effective against the most common types of bacteria in COPD exacerbation...
April 10, 2017: Ugeskrift for Laeger
https://www.readbyqxmd.com/read/29332208/localised-aggressive-periodontitis-in-a-3-year-old-boy
#2
E Mass, F Hershkovitz, U Zilberman
BACKGROUND: Localised aggressive periodontitis (LAgP), characterised by rapid attachment and bone loss, which may occur in children and adolescents, without clinical evidence of systemic disease. CASE REPORT: Three-year-old boy was referred with excessive mobility of 83 and exfoliation of 73. Clinical examination revealed acceptable oral hygiene. Blood tests were performed to evaluate PMNs activity and the parents were advised to apply 0.2% chlorhexidine twice a day...
January 13, 2018: European Archives of Paediatric Dentistry: Official Journal of the European Academy of Paediatric Dentistry
https://www.readbyqxmd.com/read/29327293/overexpression-of-spot-gene-in-coccoid-forms-of-clinical-helicobacter-pylori-isolates
#3
Farkhondeh Poursina, Jamshid Fagri, Nasrin Mirzaei, Hajieh Ghasemian Safaei
Helicobacter pylori (H. pylori) can convert to coccoid form in unfavorable conditions or as a result of antibiotic treatment. In order to adapt to harsh environments, H. pylori requires a stringent response which, encoded by the spoT gene, has a bifunctional enzyme possessing both (p)ppGpp synthetic and degrading activity. Our goal in this study was to compare spoT gene expression in spiral and induced coccoid forms of H. pylori with use of amoxicillin. First, clinical isolate coccoid forms were induced with amoxicillin; then, the viability test was analyzed by flow cytometer...
January 11, 2018: Folia Microbiologica
https://www.readbyqxmd.com/read/29326959/use-of-antibiotic-prophylaxis-for-tooth-extractions-dental-implants-and-periodontal-surgical-procedures
#4
Katie J Suda, Heather Henschel, Ursula Patel, Margaret A Fitzpatrick, Charlesnika T Evans
Background: Guidelines for antibiotics prior to dental procedures for patients with specific cardiac conditions and prosthetic joints have changed, reducing indications for antibiotic prophylaxis. In addition to guidelines focused on patient comorbidities, systematic reviews specific to dental extractions and implants support preprocedure antibiotics for all patients. However, data on dentist adherence to these recommendations are scarce. Methods: This was a cross-sectional study of veterans undergoing tooth extractions, dental implants, and periodontal procedures...
January 2018: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/29325866/2-2-nitrovinyl-furan-exacerbates-oxidative-stress-responses-of-escherichia-coli-to-bacteriostatic-and-bactericidal-antibiotics
#5
T O Ajiboye
The influence of 2-(2-nitrovinyl) furan on the antibiotic activities of selected bacteriostatic and bactericidal antibiotics was investigated. Minimum inhibitory concentration and fractional inhibitory concentration index were determined to evaluate the interaction between 2-(2-nitrovinyl) furan and the antibiotics. 2-(2-nitrovinyl) furan exhibited additive interactions with chloramphenicol, erythromycin, lincomycin and gemifloxacin. However, synergistic interaction was observed with amoxicillin, ampicillin and ciprofloxacin...
January 8, 2018: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29323139/reverse-micelle-extraction-of-antibiotics-using-an-eco-friendly-sophorolipids-biosurfactant
#6
Sing Chuong Chuo, Norfahana Abd-Talib, Siti Hamidah Mohd-Setapar, Hashim Hassan, Hasmida Mohd Nasir, Akil Ahmad, David Lokhat, Ghulam Md Ashraf
Reverse micelles extraction of erythromycin and amoxicillin were carried out using the novel Sophorolipids biosurfactant. By replacing commonly used chemical surfactants with biosurfactant, reverse micelle extraction can be further improved in terms of environmental friendliness and sustainability. A central composite experimental design was used to investigate the effects of solution pH, KCl concentration, and sophorolipids concentration on the reverse micelle extraction of antibiotics. The most significant factor identified during the reverse micelle extraction of both antibiotics is the pH of aqueous solutions...
January 11, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29320984/prevalence-and-antibiotic-susceptibility-of-uropathogens-from-cases-of-urinary-tract-infections-uti-in-shashemene-referral-hospital-ethiopia
#7
Wubalem Desta Seifu, Alemayehu Desalegn Gebissa
BACKGROUND: Urinary tract infection (UTI) remains to be one of the most common infectious diseases diagnosed in developing countries. And a widespread use of antibiotics against uropathogens has led to the emergence of antibiotic resistant species. A laboratory based cross-sectional survey was conducted in Shashemene referral hospital to determine the prevalence and antibiotic susceptibility of uropathogens. METHODS: We have collected 384 clean catch mid-stream urine samples from all suspected UTI outpatients using sterile screw capped container...
January 10, 2018: BMC Infectious Diseases
https://www.readbyqxmd.com/read/29319754/identification-and-antimicrobial-suceptibility-profile-of-bacteria-causing-bovine-mastitis-from-dairy-farms-in-pelotas-rio-grande-do-sul
#8
C H Freitas, J F Mendes, P V Villarreal, P R Santos, C L Gonçalves, H L Gonzales, P S Nascente
Mastitis is an inflammatory process of the udder tissue caused mainly by the bacteria Staphylococcus aureus. The indiscriminate use of antibiotics fosters conditions that favor the selection of resistant microorganisms, suppressing at the same time susceptible forms, causing a serious problem in dairy cattle. Given the importance in performing an antibiogram to select the most adequate antimicrobial therapy, the aim of this study was to identify bacteria isolated from cow's milk with mastitis, in dairy farms situated in the city of Pelotas, Rio Grande do Sul, and to determinate the susceptibility profile of these isolates against the antibiotics used to treat this illness...
January 8, 2018: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/29319517/characterisation-of-antimicrobial-properties-of-extracts-of-selected-medicinal-plants
#9
Monika Cioch, Paweł Satora, Magdalena Skotniczny, Dorota Semik-Szczurak, Tomasz Tarko
The scope of the experiments included analysis of the antimicrobial activity of ethanolic, methanolic and aqueous extracts against bacterial and fungal cultures and determination of the minimum inhibitory concentration of plant extracts tested microbial growth. Analysis of the antifungal and antibacterial activity was carried out by the disc diffusion method using paper discs. In the experiment 11 species of microorganisms - 8 bacterial and 3 fungal strains were used. The highest antimicrobial activity against the tested strains was demonstrated by black elder (Sambucus nigra L...
December 4, 2017: Polish Journal of Microbiology
https://www.readbyqxmd.com/read/29316871/listeria-monocytogenes-sepsis-in-the-nursing-home-community-a-case-report-and-short-review-of-the-literature
#10
Griet Buyck, Veronique Devriendt, Anne-Marie Van den Abeele, Christian Bachmann
Objective and importance Listeria monocytogenes is a rare foodborne pathogen, causing both outbreaks and sporadic infections. Severe, systemic infections are more prevalent in at-risk populations, such as pregnant women, but occur mostly in older people and immunocompromised individuals. In this case report, we describe the presentation, diagnosis, and treatment of Listeria monocytogenes sepsis in an older patient, and we briefly review the literature about listeriosis and the importance of safe food practices...
January 9, 2018: Acta Clinica Belgica
https://www.readbyqxmd.com/read/29313577/a-randomized-controlled-phase-iii-clinical-trial-to-evaluate-the-efficacy-and-tolerability-of-risorine-with-conventional-rifampicin-in-the-treatment-of-newly-diagnosed-pulmonary-tuberculosis-patients
#11
Naresh Patel, K Jagannath, Agam Vora, Mukesh Patel, Anand Patel
Background: The overall goals for treatment of Tuberculosis (TB) are to cure individual patient and to minimize the transmission of Mycobacterium tuberculosis. At the time of study conduction, the standard treatment for newly diagnosed tuberculosis patients consisted of an intensive phase for two months with four drugs (HRZE), followed by continuation phase for four months with two drugs (HR). Rifampicin, which is very effective against Mycobacterium tuberculosis, in both the phases of treatment, has certain concerns, which includes, decreased bioavailability with chronic use and hepatotoxicity...
September 2017: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/29313479/the-quality-of-medicines-used-in-children-and-supplied-by-private-pharmaceutical-wholesalers-in-kinshasa-democratic-republic-of-congo-a-prospective-survey
#12
Benedetta Schiavetti, Evelien Wynendaele, Bart De Spiegeleer, Geremie J Mbinze, Nicholas Kalenda, Roland Marini, Vera Melotte, Epco Hasker, Bruno Meessen, Raffaella Ravinetto, Josiane Van der Elst, Daniel Mutolo Ngeleka
Poor-quality medicines are a threat to public health in many low- and middle-income countries, and prospective surveys are needed to inform corrective actions. Therefore, we conducted a cross-sectional survey on a sample of products used for children and available in the private market in Kinshasa, Democratic Republic Congo: amoxicillin (AX) and artemether/lumefantrine (AL), powders for suspension, and paracetamol (PC) tablets 500 mg. Overall, 417 products were covertly purchased from 61 wholesalers. To obtain a representative sample, the products were weighted on their market shares and a subset of 239 samples was randomly extracted to undergo in-depth visual inspection locally, and they were chemically assessed at two accredited laboratories in Belgium...
January 8, 2018: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29310282/use-of-polymer-inclusion-membranes-pims-as-support-for-electromembrane-extraction-of-non-steroidal-anti-inflammatory-drugs-and-highly-polar-acidic-drugs
#13
Román-Hidalgo Cristina, Martín-Valero María Jesús, Fernández-Torres Rut, Bello-López Miguel Ángel
The use of polymer inclusion membranes (PIMs) as support of 1-octanol liquid membrane in electromembrane extraction (EME) procedure is proposed. Synthesis of PIMs were optimized to a composition of 29% (w/w) of cellulose triacetate as base polymer and 71% (w/w) of Aliquat®336 as cationic carrier. Flat PIMs of 25µm thickness and 6mm diameter were used. EME protocol was implemented for the simultaneous extraction of four non-steroidal anti-inflammatory drugs (NSAIDs) (salicylic acid, ketoprofen, naproxen and ibuprofen) and four highly polar acidic drugs (anthranilic acid, nicotinic acid, amoxicillin and hippuric acid)...
March 1, 2018: Talanta
https://www.readbyqxmd.com/read/29310210/a-new-and-simple-method-for-the-simultaneous-determination-of-amoxicillin-and-nimesulide-using-carbon-black-within-a-dihexadecylphosphate-film-as-electrochemical-sensor
#14
Patrícia B Deroco, Romeu C Rocha-Filho, Orlando Fatibello-Filho
The first electroanalytical method for the simultaneous determination of an important antibiotic (amoxicillin - AMX) and an anti-inflammatory drug (nimesulide -NIM), widely used in combination, is here proposed. In this method, a glassy carbon (GC) substrate modified with carbon black (CB) immobilized within a dihexadecylphosphate (DHP) film is used as electrochemical sensor (CB-DHP/GC). The electrochemical activity of this sensor was assessed (comparatively to that of GC) by electrochemical impedance spectroscopy, using the [Fe(CN)6]3-/4- redox couple, when two different active electron transfer regions were clearly characterized...
March 1, 2018: Talanta
https://www.readbyqxmd.com/read/29310119/efficacy-of-reduced-dosage-of-amoxicillin-in-an-eradication-therapy-for-helicobacter-pylori-infection-in-patients-on-hemodialysis-a-randomized-controlled-trial
#15
Shu Sahara, Mitsushige Sugimoto, Hitomi Ichikawa, Takuma Kagami, Yukitoshi Sakao, Naro Ohashi, Yoshiaki Horio, Ken Sugimoto, Akihiko Kato, Takahisa Furuta, Hideo Yasuda
BACKGROUND: An optimum Helicobacter pylori-eradication regimen for hemodialysis patients is yet to be established because of different pharmacokinetics of amoxicillin involved between hemodialysis patients and healthy subjects. We investigated to establish appropriate doses of amoxicillin for H. pylori infection eradication in hemodialysis patients. METHODS: Of 409 hemodialysis patients screened for H. pylori infection, 37 H. pylori-positive patients were randomized to different 1-week eradication regimens: esomeprazole 20 mg twice a day (b...
January 8, 2018: Digestion
https://www.readbyqxmd.com/read/29309593/effect-of-general-practice-characteristics-and-antibiotic-prescribing-on-escherichia-coli-antibiotic-non-susceptibility-in-the-west-midlands-region-of-england-a-4%C3%A2-year-ecological-study
#16
Dean Ironmonger, Obaghe Edeghere, Neville Q Verlander, Savita Gossain, Susan Hopkins, Bridget Hilton, Peter M Hawkey
Objectives: To assess the effect of general practice characteristics and antibiotic prescribing on the number of non-susceptible Escherichia coli isolated from urine specimens submitted from community settings, we undertook an ecological study of the general practice population in the West Midlands. Methods: Descriptive analysis and multilevel modelling of temporal trends in antibiotic prescribing and non-susceptibility of E. coli urine isolates to a range of antibiotics prescribed in the community over a 4 year period...
December 21, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/29306966/efficient-synthesis-of-%C3%AE-lactam-antibiotics-with-very-low-product-hydrolysis-by-a-mutant-providencia-rettgeri-penicillin-g-acylase
#17
Xin Pan, Li Wang, Jiajie Ye, Song Qin, Bingfang He
Penicillin G acylase (PGA) was isolated from Providencia rettgeri PX04 (PrPGApx04) and utilized for the kinetically controlled synthesis of β-lactam antibiotics. Site-directed mutagenesis was performed to increase the process efficiency. Molecular docking was carried out to speculate the key mutant positions corresponding with synthetic activity, which resulted in the achievement of an efficient mutant, βF24G. It yielded higher conversions than the wild-type enzyme in the synthesis of amoxicillin (95 versus 17...
January 6, 2018: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/29306334/non-rheumatic-streptococcal-myocarditis-mimicking-acute-myocardial-infarction-in-an-adolescent-male
#18
Caitlin E O'Brien, John D Coulson, Priya Sekar, Jon R Resar, Kristen Nelson McMillan
An adolescent male with a recent history of streptococcal pharyngitis presented with severe substernal chest pain, troponin leak, and ST-segment elevation, which are suggestive of acute inferolateral myocardial infarction. The coronary angiogram was normal. The patient was subsequently diagnosed with non-rheumatic streptococcal myocarditis. He was treated with amoxicillin and had excellent recovery. Non-rheumatic streptococcal myocarditis is an important mimic of acute myocardial infarction in young adults.
January 8, 2018: Cardiology in the Young
https://www.readbyqxmd.com/read/29305960/antibiotic-susceptibilities-of-livestock-isolates-of-leptospira
#19
Geoffroy Liegeon, Tristan Delory, Mathieu Picardeau
Leptospirosis is the most common zoonotic disease and is endemic worldwide. The antibiotic susceptibilities of Leptospira isolated from both humans and animals are poorly documented. This issue is particularly important for isolates from food-producing animals which are regularly exposed to antibiotic treatments. In this study, we assess the susceptibility of 35 Leptospira strains isolated from food-producing animals of diverse geographical origins between 1936 and 2016 to the antimicrobial agents most commonly used in animals...
January 3, 2018: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/29303686/microbiologic-analysis-of-complicated-and-uncomplicated-acute-appendicitis
#20
Andrés García-Marín, Mercedes Pérez-López, Elena Martínez-Guerrero, Lorena Rodríguez-Cazalla, Antonio Compañ-Rosique
BACKGROUND: Microbiologic studies suggest that complicated (CAA) and uncomplicated (UAA) acute appendicitis are different entities. Routine peritoneal fluid cultures continue to be controversially related to a low positive rate, found mainly in UAA; to isolation of typical micro-organisms with expected susceptibilities; and to a community-acquired intra-abdominal infection. The aim of this study was to describe microbiologic isolates in CAA and UAA and the usefulness of peritoneal fluid cultures to determine the susceptibilities to our antibiotic therapy guidelines...
January 2018: Surgical Infections
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