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Antibiotic resistant Staphylococcus

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https://www.readbyqxmd.com/read/28344408/potential-antibacterial-activity-of-some-saudi-arabia-honey
#1
Ahmed G Hegazi, Faiz M Al Guthami, Ahmed F M Al Gethami, Fyrouz M Abd Allah, Ashraf A Saleh, Ehab A Fouad
AIM: The aim of this study was to investigate the potential antibacterial activity of some Saudi Arabia honey against selected bacterial strains of medical importance. MATERIALS AND METHODS: A total of 10 Saudi Arabia honey used to evaluate their antimicrobial activity against some antibiotic-resistant pathogenic bacterial strains. The bacterial strains were Staphylococcus aureus, Streptococcus pyogenes, Klebsiella pneumoniae, Escherichia coli, and Pseudomonas aeruginosa...
February 2017: Veterinary World
https://www.readbyqxmd.com/read/28344406/attribution-of-antibacterial-and-antioxidant-activity-of-cassia-tora-extract-toward-its-growth-promoting-effect-in-broiler-birds
#2
Jyoti Sahu, K M Koley, B D Sahu
AIM: The study was conducted to evaluate the attribution of antibacterial and antioxidant activity of methanolic extract of Cassia tora toward its growth promoting effect in broiler birds. MATERIALS AND METHODS: A limit test was conducted for C. tora extract in Wistar albino rats. Phytochemical screening of methanolic extract of leaves of C. tora was carried out. In-vitro antibacterial activity was measured by disc diffusion method. 1-day-old Ven Cobb broiler birds (n=90) were randomly allocated into three groups consisting of three replicates with 10 birds in each group...
February 2017: Veterinary World
https://www.readbyqxmd.com/read/28343241/in-vitro-activity-of-alpha-mangostin-in-killing-and-eradicating-staphylococcus-epidermidis-rp62a-biofilms
#3
Murugesan Sivaranjani, Manivannan Prakash, Shanmugaraj Gowrishankar, Janarthanam Rathna, Shunmugiah Karutha Pandian, Arumugam Veera Ravi
Alpha-mangostin (α-MG) has been reported to be an effective antibacterial agent against planktonic cells of many Gram-positive bacteria. However, the antibiofilm potency of α-MG remains unexplored till date. In this study, the antibiofilm and mature biofilm eradication ability of α-MG against Staphylococcus epidermidis RP62A (ATCC 35984) biofilms were evaluated. The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of α-MG against S. epidermidis RP62A were found to be 1...
March 25, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28342937/molecular-epidemiology-of-staphylococcus-aureus-nasal-colonization-among-patients-and-their-parents-guardian-in-an-iranian-referral-hospital
#4
Babak Pourakbari, Mahmoud Khodabandeh, Shima Mahmoudi, Farah Sabouni, Alireza Aziz-Ahari, Abbas Bahador, Sepideh Keshavarz Valian, Reihaneh Hosseinpour Sadeghi, Setareh Mamishi
INTRODUCTION: Carriage of Staphylococcus aureus in the nose appears to play a key role in the epidemiology and pathogenesis of infection. It is important to investigate the genetic relatedness of S. aureus and MRSA clones in different geographic regions. The aim of this study was to assess the nasal carriage rate of S. aureus, including MRSA strains in both hospitalized children and general adult population (parents/guardian). In addition, antibiotic susceptibility pattern and molecular diversity of S...
March 22, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28342695/in%C3%A2-vivo-serum-concentration-of-vancomycin-in-antibiotic-loaded-acrylic-cement-for-the-treatment-and-prevention-of-periprosthetic-hip-infection
#5
Kenichi Oe, Hirokazu Iida, Narumi Ueda, Tomohisa Nakamura, Naofumi Okamoto, Yusuke Ueda
BACKGROUND: Although antibiotic-loaded acrylic cement (ALAC) is used to prevent and treat periprosthetic hip infection, it is unknown how much antibiotic is deposited in the body in vivo, how high the serum concentration rises, or how long its effects last. The aim of this study was firstly to determine the amount of vancomycin (VCM) deposited as ALAC in the body, and secondly to assess the safety and drug elution profile of VCM in ALAC. METHODS: We administered VCM to prevent infection after total hip arthroplasty (THA) or to treat patients with methicillin-resistant Staphylococcus aureus...
March 22, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28341068/clinical-characteristics-of-pyogenic-flexor-tenosynovitis-in-pediatric-patients
#6
Christopher M Brusalis, Stephanie Thibaudeau, Robert B Carrigan, Ines C Lin, Benjamin Chang, Apurva S Shah
PURPOSE: To characterize the clinical presentation, common pathogens, antimicrobial susceptibility, and treatment methods associated with pyogenic flexor tenosynovitis (PFT) in pediatric patients. METHODS: Patients who underwent surgical treatment for PFT at a large tertiary-care children's hospital between 2001 and 2015 were identified. Descriptive summary statistics were reported on patient demographics, presenting symptoms and clinical examination features, culture results, treatment strategies, and early complications...
March 21, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28339675/high-reported-rates-of-antimicrobial-resistance-in-indian-neonatal-and-pediatric-blood-stream-infections
#7
Dhanya Dharmapalan, Anita Shet, Vijay Yewale, Mike Sharland
Background.: There is real shortage of national data on antimicrobial resistance rates in Indian neonates and children. A descriptive review was conducted to determine the patterns of antimicrobial resistance in isolates of blood stream infection among hospitalized children in India. Methods.: Published and gray literature on antibiotic resistance in children was searched using "Google Scholar", "Scopus", and "PubMed" databases between January 2000 and July 2015...
February 18, 2017: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/28337489/antibiotic-resistance-profiling-and-microbiota-of-the-upper-respiratory-tract-of-apparently-healthy-dogs-in-ibadan-south-west-nigeria
#8
Oluwafemi Babatunde Daodu, Elizabeth Adesola Amosun, Daniel Oladimeji Oluwayelu
BACKGROUND: Rearing of dogs and other pets has become increasingly popular in modern society. Bacterial flora resides within the nasal and oral cavities of dogs and when chanced, can be pathogenic. Certain similarities between humans and dogs portends dangerous behavioral habits that could lead to zoonotic disease transmission. This study was aimed at isolation, identification and antibiotic profiling of bacteria from nasal swabs of apparently healthy dogs. The zoonotic risk was also considered...
2017: African Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28335438/the-food-production-environment-and-the-development-of-antimicrobial-resistance-in-human-pathogens-of-animal-origin
#9
REVIEW
Manjusha Lekshmi, Parvathi Ammini, Sanath Kumar, Manuel F Varela
Food-borne pathogens are a serious human health concern worldwide, and the emergence of antibiotic-resistant food pathogens has further confounded this problem. Once-highly-efficacious antibiotics are gradually becoming ineffective against many important pathogens, resulting in severe treatment crises. Among several reasons for the development and spread of antimicrobial resistance, their overuse in animal food production systems for purposes other than treatment of infections is prominent. Many pathogens of animals are zoonotic, and therefore any development of resistance in pathogens associated with food animals can spread to humans through the food chain...
March 14, 2017: Microorganisms
https://www.readbyqxmd.com/read/28333189/fully-automated-disc-diffusion-for-rapid-antibiotic-susceptibility-test-results-a-proof-of-principle-study
#10
Michael Hombach, Marion Jetter, Nicolas Blöchliger, Natalia Kolesnik-Goldmann, Erik C Böttger
Background: Antibiotic resistance poses a significant threat to patients suffering from infectious diseases. Early readings of antibiotic susceptibility test (AST) results could be of critical importance to ensure adequate treatment. Disc diffusion is a well-standardized, established and cost-efficient AST procedure; however, its use in the clinical laboratory is hampered by the many manual steps involved, and an incubation time of 16-18 h, which is required to achieve reliable test results...
February 17, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28331309/in-vitro-and-in-vivo-drug-release-and-antibacterial-properties-of-the-novel-vancomycin-loaded-bone-like-hydroxyapatite-poly-amino-acid-scaffold
#11
Zhidong Cao, Dianming Jiang, Ling Yan, Jun Wu
Antibiotic-loaded carriers were developed to fill cavities and locally deliver antibiotics following implantation. However, the most commonly used antibiotic carrier, polymethyl methacrylate (PMMA), has many disadvantages including that it does not promote bone regeneration or conduction. Vancomycin-loaded bone-like hydroxyapatite/poly amino acid (V-BHA/PAA) was successfully fabricated by a homogeneous method, certified as biosafe and known to promote osteogenesis. To evaluate its drug-release features, the quantity of the vancomycin in the elution was obtained every 2 days after in vitro simulated body fluid immersion...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28330735/vancomycin-loaded-nanobubbles-a-new-platform-for-controlled-antibiotic-delivery-against-methicillin-resistant-staphylococcus-aureus-infections
#12
Monica Argenziano, Giuliana Banche, Anna Luganini, Nicole Finesso, Valeria Allizond, Giulia Rossana Gulino, Amina Khadjavi, Rita Spagnolo, Vivian Tullio, Giuliana Giribaldi, Caterina Guiot, Anna Maria Cuffini, Mauro Prato, Roberta Cavalli
Vancomycin (Vm) currently represents the gold standard against methicillin-resistant Staphylococcus aureus (MRSA) infections. However, it is associated with low oral bioavailability, formulation stability issues, and severe side effects upon systemic administration. These drawbacks could be overcome by Vm topical administration if properly encapsulated in a nanocarrier. Intriguingly, nanobubbles (NBs) are responsive to physical external stimuli such as ultrasound (US), promoting drug delivery. In this work, perfluoropentane (PFP)-cored NBs were loaded with Vm by coupling to the outer dextran sulfate shell...
March 19, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28330484/antibiotic-resistance-and-biofilm-production-among-the-strains-of-staphylococcus-aureus-isolated-from-pus-wound-swab-samples-in-a-tertiary-care-hospital-in-nepal
#13
Ankit Belbase, Narayan Dutt Pant, Krishus Nepal, Bibhusan Neupane, Rikesh Baidhya, Reena Baidya, Binod Lekhak
BACKGROUND: The increasing drug resistance along with inducible clindamycin resistance, methicillin resistance and biofilm production among the strains of Staphylococcus aureus are present as the serious problems to the successful treatment of the infections caused by S. aureus. So, the main objectives of this study were to determine the antimicrobial susceptibility patterns along with the rates of inducible clindamycin resistance, methicillin resistance and biofilm production among the strains of S...
March 23, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28330238/isolation-of-antimicrobial-resistant-bacteria-in-upper-respiratory-tract-infections-of-patients
#14
Li-Min Wang, Xiao-Liang Qiao, Liang Ai, Jing-Jing Zhai, Xue-Xia Wang
Haemophilus influenzae, Streptococcus pyogenes, Moraxella catarrhalis, Staphylococcus aureus, and Streptococcus pneumoniae are usual cause of upper respiratory tract infection cases. The present study aims the isolation of bacterial strains which are resistant to the commonly prescribed antibiotics. In total, 900 throat swabs were obtained from the patients suffering from upper respiratory tract infections residing in three different localities. The maximum number of isolates (64 %) were obtained from locality-1 (L-1), whereas lowest isolates were found in second locality (L-2)...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28328157/lack-of-small-colony-variants-of-staphylococcus-aureus-from-lower-respiratory-tract-specimens
#15
Rosemary Carzino, Emily Hart, Philip Sutton, Louise King, Sarath Ranganathan
BACKGROUND: Small-colony variants (SCVs) of Staphylococcus aureus are associated with worse lung disease in children with Cystic Fibrosis (CF), exhibit a higher resistance to antibiotics and co-colonize more commonly with Pseudomonas aeruginosa compared to the normal phenotype. The prevalence of SCVs in lower airway specimens from children with CF is largely unknown. METHODS: Each visible morphotype of S. aureus was subcultured onto horse blood agar (HBA) to enable identification of SCVs...
March 22, 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/28327271/novel-anti-staphylococcal-and-anti-biofilm-properties-of-two-anti-malarial-compounds-mmv665953-1-3-chloro-4-fluorophenyl-3-3-4-dichlorophenyl-urea-and-mmv665807-5-chloro-2-hydroxy-n-3-trifluoromethyl-phenyl-benzamide
#16
Marta Zapotoczna, Nabila Boksmati, Sinead Donohue, Baizurina Bahtiar, Ahmad Boland, Hamzah Al Somali, Alysia Cox, Hilary Humphreys, James P O'Gara, Marian Brennan, Eoghan O'Neill
PURPOSE: The treatment of device-related infections is challenging and current anti-microbial compounds have poor anti-biofilm activity. We aimed to identify and characterize novel compounds effective in the eradication of Staphylococcus aureus biofilms. METHODOLOGY: Two novel compounds, MMV665953 {1-(3-chloro-4-fluorophenyl)-3-(3,4-dichlorophenyl)urea} and MMV665807{5-chloro-2-hydroxy-N-[3-(trifluoromethyl)phenyl]benzamide}, effective in killing S. aureus biofilms, were identified by screening of the open access 'malaria box' chemical library...
March 23, 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28326851/evaluation-of-antibacterial-activity-of-the-bark-and-leaf-extracts-of-brosimum-gaudichaudii-tr%C3%A3-cul-against-multidrug-resistant-strains
#17
Joelma da Costa Borges, Michele Cezimbra Perim, Rodrigo Orlandini de Castro, Thiago Antônio de Sousa Araújo, Tadeu José da Silva Peixoto Sobrinho, Ana Carolina Oliveira da Silva, Sandra Maria Botelho Mariano, Solange Cristina Carreiro, Maria Cristina da Silva Pranchevicius
Brosimum gaudichaudii Trécul., a plant that belongs to Moraceae family, is found throughout the Brazilian Cerrado. The antimicrobial activities of ethanolic bark and leaf extracts of B. gaudichaudii were tested against multiresistant bacteria isolated from diabetic foot infections (DFIs). Antimicrobial activity of the extracts was evaluated by agar disc diffusion (DD) and broth dilution (BD) methods. By BD method, bark (53.85, 45.83%) and leaf (42.31, 50.00%) extracts contained antimicrobial activity against both gram-negative and gram-positive bacteria...
March 22, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28326447/in-vitro-activity-of-tedizolid-and-linezolid-against-staphylococcus-epidermidis-isolated-from-prosthetic-joint-infections
#18
C Littorin, B Hellmark, Å Nilsdotter-Augustinsson, B Söderquist
Prosthetic joint infections (PJIs) are rare but long-lasting and are serious complications without any spontaneous resolution, requiring additional surgery and long-term treatment with antibiotics. Staphylococci are the most important aetiological agents of PJIs, and among the coagulase-negative staphylococci Staphylococcus epidermidis is the most common. However, S. epidermidis often displays multidrug resistance (MDR), demanding additional treatment options. The objective was to examine the effectiveness of tedizolid and linezolid against S...
March 22, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28325220/action-of-antibiotic-oxacillin-on-in%C3%A2-vitro-growth-of-methicillin-resistant-staphylococcus-aureus-mrsa-previously-treated-with-homeopathic-medicines
#19
Tânia Aguiar Passeti, Leandro Ribeiro Bissoli, Ana Paula Macedo, Registila Beltrame Libame, Susana Diniz, Silvia Waisse
BACKGROUND: Resistance to antibiotics is a major public health concern worldwide. New treatment options are needed and homeopathy is one such option. We sought to assess the effect of the homeopathic medicine Belladonna (Bell) and a nosode (biotherapy) prepared from a multi-drug resistant bacterial species, methicillin-resistant Staphylococcus aureus (MRSA), on the same bacterium. METHODS: Bell and MRSA nosode were prepared in 6cH and 30cH potencies in 30% alcohol and sterile water, according to the Brazilian Homeopathic Pharmacopeia and tested on MRSA National Collection of Type Cultures (NCTC) 10442...
February 2017: Homeopathy: the Journal of the Faculty of Homeopathy
https://www.readbyqxmd.com/read/28323886/contribution-of-urinary-tract-infection-to-the-burden-of-febrile-illnesses-in-young-children-in-rural-kenya
#20
Wechuli Geoffrey Masika, Wendy Prudhomme O'Meara, Thomas L Holland, Janice Armstrong
INTRODUCTION: The clinical features of UTI in young children may not localize to the urinary tract and closely resemble other febrile illnesses. In malaria endemic areas, a child presenting with fever is often treated presumptively for malaria without investigation for UTI. Delayed or inadequate treatment of UTI increases the risk of bacteremia and renal scarring in young children and subsequently complications as hypertension and end stage renal disease in adulthood. METHODS: A cross-sectional study was carried out in a hospital in western Kenya...
2017: PloS One
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