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https://www.readbyqxmd.com/read/28333236/antimicrobial-salvage-therapy-for-native-valve-mrsa-endocarditis
#1
Jennifer Cortes, Ala-Eddin S Sagar, Yeunju Lee, Uday Sandhu, Kamran Boka
No abstract text is available yet for this article.
February 28, 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
#2
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
#3
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
#4
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/28330192/differential-display-reverse-transcription-pcr-ddrt-pcr-a-new-technology-for-molecular-detection-and-studying-one-of-the-antagonistic-factors-of-bacillus-endophyticus-strain-sa-against-staphylococcus-aureus-mrsa
#5
Mahmoud F Moustafa, Tarek H Taha, M Helal, Sulaiman A Alrumman
Differential Display (DDRT-PCR) is a powerful technique for analyzing differences in gene expression. In-vivo expression technologies and differential display RT-PCR are providing new approaches to further examine a microbe's response to experimental conditions which more closely resemble natural microbial associations and habitats. In this study, Bacillus endophyticus strain SA isolated from the inner tissue of the stem of the cultivated plant (Salvadora persica, Asir, Kingdom of Saudi Arabia) produces an antagonistic factor...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28329190/preventing-mrsa-disease-in-urban-u-s-hospitals-now-for-the-hard-part-more-evidence-pointing-to-the-community-as-the-source-of-mrsa-acquisition
#6
Susan M Ray
No abstract text is available yet for this article.
February 22, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28326781/the-berkeleylactones-antibiotic-macrolides-from-fungal-coculture
#7
Andrea A Stierle, Donald B Stierle, Daniel Decato, Nigel D Priestley, Jeremy B Alverson, John Hoody, Kelly McGrath, Dorota Klepacki
A carefully timed coculture fermentation of Penicillium fuscum and P. camembertii/clavigerum yielded eight new 16-membered-ring macrolides, berkeleylactones A-H (1, 4, 6-9, 12, 13), as well as the known antibiotic macrolide A26771B (5), patulin, and citrinin. There was no evidence of the production of the berkeleylactones or A26771B (5) by either fungus when grown as axenic cultures. The structures were deduced from analyses of spectral data, and the absolute configurations of compounds 1 and 9 were determined by single-crystal X-ray crystallography...
March 22, 2017: Journal of Natural Products
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
#8
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/28324679/methicillin-resistant-and-susceptible-staphylococcus-aureus-from-retail-meat-in-denmark
#9
Yuanyue Tang, Jesper Larsen, Jette Kjeldgaard, Paal Skytt Andersen, Robert Skov, Hanne Ingmer
Livestock-associated methicillin-resistant Staphylococcus aureus (LA-MRSA) is increasingly related to human infections. Farmers and veterinarians have the highest risk, but infections have also occurred in individuals without prior contact to livestock. Clonal complex (CC) 398 is the predominant LA-MRSA lineage causing human infections, and although pigs are the major source of CC398 worldwide, poultry and other animals are also reservoirs. This raises concern for transmission of MRSA via meat. In this study, the occurrence and characteristics of S...
March 6, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/28321991/atomic-layer-deposition-of-a-silver-nanolayer-on-advanced-titanium-orthopedic-implants-inhibits-bacterial-colonization-and-supports-vascularized-de-novo-bone-ingrowth
#10
Aine Devlin-Mullin, Naomi M Todd, Zahra Golrokhi, Hua Geng, Moritz A Konerding, Nigel G Ternan, John A Hunt, Richard J Potter, Chris Sutcliffe, Eric Jones, Peter D Lee, Christopher A Mitchell
Joint replacement surgery is associated with significant morbidity and mortality following infection with either methicillin-resistant Staphylococcus aureus (MRSA) or Staphylococcus epidermidis. These organisms have strong biofilm-forming capability in deep wounds and on prosthetic surfaces, with 10(3) -10(4) microbes resulting in clinically significant infections. To inhibit biofilm formation, we developed 3D titanium structures using selective laser melting and then coated them with a silver nanolayer using atomic layer deposition...
March 21, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28321579/performance-of-three-generations-of-xpert-mrsa-in-routine-practice-approaching-the-aim
#11
H Jacqmin, A Schuermans, S Desmet, J Verhaegen, V Saegeman
The aim of this study was to evaluate retrospectively the performance of the Xpert MRSA assay in routine practice and its current use in the intensive care unit (ICU) setting of our hospital, since a pre-emptive isolation strategy has been applied. A total of 6473 patients were routinely screened with ESwab for methicillin-resistant Staphylococcus aureus (MRSA) using three generations of rapid real-time polymerase chain reaction (PCR) (Cepheid GeneXpert) over three consecutive periods of time. Performance was evaluated using broth enrichment culture as the reference method...
March 20, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28321262/allium-stipitatum-extract-exhibits-in-vivo-antibacterial-activity-against-methicillin-resistant-staphylococcus-aureus-and-accelerates-burn-wound-healing-in-a-full-thickness-murine-burn-model
#12
Arunkumar Karunanidhi, Ehsanollah Ghaznavi-Rad, Jayakayatri Jeevajothi Nathan, Yusuf Abba, Alex van Belkum, Vasanthakumari Neela
The in vivo antibacterial and burn wound healing potency of Persian shallot bulbs (Allium stipitatum) were explored in a mice burn model infected with methicillin-resistant Staphylococcus aureus (MRSA). Hexane (ASHE) and dichloromethane (ASDE) extracts were tested. Female BALB/c mice were inflicted with third-degree thermal injury followed by infection with MRSA. ASHE and ASDE formulated with simple ointment base (SOB) at concentrations of 1%, 2%, and 5% (w/w) were topically applied to burn wounds twice a day for 20 days...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28321210/production-of-ramoplanin-and-ramoplanin-analogs-by-actinomycetes
#13
Mercedes de la Cruz, Ignacio González, Craig A Parish, Russell Onishi, José R Tormo, Jesús Martín, Fernando Peláez, Debbie Zink, Noureddine El Aouad, Fernando Reyes, Olga Genilloud, Francisca Vicente
Ramoplanin is a glycolipodepsipeptide antibiotic obtained from fermentation of Actinoplanes sp. ATCC 33076 that exhibits activity against clinically important multi-drug-resistant, Gram-positive pathogens including vancomycin-resistant Enterococcus (VRE), methicillin-resistant Staphylococcus aureus (MRSA), and vancomycin-intermediate resistant Clostridium difficile. It disrupts bacterial cell wall through a unique mechanism of action by sequestering the peptidoglycan intermediate Lipid II and therefore does not show cross-resistance with other antibiotics...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28320719/antibiotic-effects-on-methicillin-resistant-staphylococcus-aureus-cytoplasmic-peptidoglycan-intermediate-levels-evidence-for-potential-metabolite-level-regulatory-loops
#14
Harika Vemula, Navid J Ayon, Alloch Burton, William G Gutheil
Cytoplasmic peptidoglycan (PG) precursor levels were determined in methicillin resistant S. aureus (MRSA) after exposure to several cell wall targeting antibiotics. Three experiments were performed: 1) Exposure to 4x MIC levels (acute). 2) Exposure to sub-MIC levels (sub-acute). 3) A time course of the effect of vancomycin. In acute exposure experiments, fosfomycin increased UDP-GlcNAc, as expected, and resulted in substantially lower levels of total UDP-linked metabolite accumulation relative to other pathway inhibitors, indicating reduced entry into this pathway...
March 20, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28320357/outcome-of-neurological-early-rehabilitation-patients-carrying-multi-drug-resistant-bacteria-results-from-a-german-multi-center-study
#15
J D Rollnik, M Bertram, C Bucka, M Hartwich, M Jöbges, G Ketter, B Leineweber, M Mertl-Rötzer, D A Nowak, T Platz, K Scheidtmann, R Thomas, F von Rosen, C W Wallesch, H Woldag, P Peschel, J Mehrholz, M Pohl
BACKGROUND: Colonization or infection with multi-drug resistant (MDR) bacteria is considered detrimental to the outcome of neurological and neurosurgical early rehabilitation patients. METHODS: In a German multi-center study, 754 neurological early rehabilitation patients were enrolled and and reviewed in respect to MDR status, length of stay (LOS) and the following outcome variables: Barthel Index (BI), Early Rehabilitation Index (ERI), Glasgow Outcome Score Extended (GOSE), Coma Remission Scale (CRS), Functional Ambulation Categories (FAC)...
March 20, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28319829/evaluation-of-the-pharmacokinetics-of-imipenem-following-regional-limb-perfusion-using-the-saphenous-and-the-cephalic-veins-in-standing-horses
#16
G Kelmer, A J Tatz, E Kdoshim, M Britzi, G Segev
This prospective experimental study goal was to determine the pharmacokinetics of imipenem after intravenous regional limb perfusion (IV-RLP) in standing horses. Nine horses participated in the study; that was approved by the University Animal Care and Use Committee. One thoracic limb or one pelvic limb of each horse was randomly selected. After the veins were catheterized, an Esmarch bandage tourniquet was applied and the catheter was injected with a solution containing 500mg of imipenem. Synovial fluid samples were collected from the fetlock joint and blood samples were collected from the jugular vein...
February 24, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28316631/potential-impact-of-rapid-blood-culture-testing-for-gram-positive-bacteremia-in-japan-with-the-verigene-gram-positive-blood-culture-test
#17
Ken Kikuchi, Mari Matsuda, Shigekazu Iguchi, Tomonori Mizutani, Keiichi Hiramatsu, Michiru Tega-Ishii, Kaori Sansaka, Kenta Negishi, Kimie Shimada, Jun Umemura, Shigeyuki Notake, Hideji Yanagisawa, Hiroshi Takahashi, Reiko Yabusaki, Hideki Araoka, Akiko Yoneyama
Background. Early detection of Gram-positive bacteremia and timely appropriate antimicrobial therapy are required for decreasing patient mortality. The purpose of our study was to evaluate the performance of the Verigene Gram-positive blood culture assay (BC-GP) in two special healthcare settings and determine the potential impact of rapid blood culture testing for Gram-positive bacteremia within the Japanese healthcare delivery system. Furthermore, the study included simulated blood cultures, which included a library of well-characterized methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant enterococci (VRE) isolates reflecting different geographical regions in Japan...
2017: Canadian Journal of Infectious Diseases & Medical Microbiology
https://www.readbyqxmd.com/read/28316313/flank-hernia-repair-with-suture-anchor-mesh-fixation-to-the-iliac-crest
#18
Kaushik Mukherjee, Richard S Miller
Traumatic or postsurgical flank hernias are complex and prone to recurrence, particularly at the border of the iliac crest. We reviewed our experience using suture anchors drilled into the iliac crest to fixate the mesh to bone. Our study of 10 repairs in eight patients was Institutional Review Board exempt. We obtained demographics, body mass index, diabetes, methicillin-resistant Staphylococcus aureus (MRSA) history, smoking status, steroid use, number of prior repairs, defect size, mesh size, number of anchors, and recurrence and infection at follow-up...
March 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/28315144/monitoring-antimicrobial-resistance-amr-using-cusum-control-charts
#19
L Righi, R Amarsy, M-Q Picat, M Thuillier, E Cambau, L Raskine, S Chevret, R Flicoteaux
We evaluated the use of the Cumulative Summation (CUSUM) control chart methodology for detection of an excessive increase in antimicrobial-resistant (AMR) bacteria acquisition. We used administrative, clinical and bacteriological data from all 157,570 patients hospitalized for at least 48 h from January 1, 2010 to December 31, 2015 in a 654-bed university teaching hospital in Paris, France. Monthly computed CUSUM were evaluated for the detection of out-of-control situations, defined as incidence rates of acquired AMR bacterial colonization exceeding acceptable thresholds at the hospital and ward levels (based on six selected wards) for AMR bacteria overall and Extended-spectrum beta-lactamases Enterobacteriaceae (ESBL-E) and Methicillin-resistant Staphylococcus aureus (MRSA), specifically...
March 17, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28314997/clinical-and-microbiological-outcomes-in-haematogenous-spondylodiscitis-treated-conservatively
#20
Tiziana Ascione, Giovanni Balato, Sigismondo Luca Di Donato, Pasquale Pagliano, Francesco Granata, Gianluca Colella, Carlo Ruosi
INTRODUCTION: Spondylodiscitis refers to infections of the intervertebral disc and the adjacent vertebral body. Although it is still considered a rare condition, its rate is projected to increase. Mortality rate is considered to be low, but an estimated one third of the survivors experience residual disabilities. Literature shows that uncomplicated spondylodiscitis can be adequately treated by early antibiotic therapy and immobilization. The aim of the study is to evaluate the outcome of conservative treatment in patients with haematogenous spondylodiscitis...
March 17, 2017: European Spine Journal
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