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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
#1
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/28337086/pediatric-antimicrobial-stewardship-programs
#2
Kristen Nichols, Sylvia Stoffella, Rachel Meyers, Jennifer Girotto
The frequent use of antimicrobials in pediatric patients has led to a significant increase in multidrug-resistant bacterial infections among children. Antimicrobial stewardship programs have been created in many hospitals in an effort to curtail and optimize the use of antibiotics. Pediatric-focused programs are necessary because of the differences in antimicrobial need and use among this patient population, unique considerations and dosing, vulnerability for resistance due to a lifetime of antibiotic exposure, and the increased risk of adverse events...
January 2017: Journal of Pediatric Pharmacology and Therapeutics: JPPT: the Official Journal of PPAG
https://www.readbyqxmd.com/read/28336882/antimicrobial-polymers-in-the-nano-world
#3
REVIEW
Marta Álvarez-Paino, Alexandra Muñoz-Bonilla, Marta Fernández-García
Infections are one of the main concerns of our era due to antibiotic-resistant infections and the increasing costs in the health-care sector. Within this context, antimicrobial polymers present a great alternative to combat these problems since their mechanisms of action differ from those of antibiotics. Therefore, the microorganisms' resistance to these polymeric materials is avoided. Antimicrobial polymers are not only applied in the health-care sector, they are also used in many other areas. This review presents different strategies that combine nanoscience and nanotechnology in the polymer world to combat contaminations from bacteria, fungi or algae...
February 22, 2017: Nanomaterials
https://www.readbyqxmd.com/read/28335438/the-food-production-environment-and-the-development-of-antimicrobial-resistance-in-human-pathogens-of-animal-origin
#4
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/28335413/chitin-oligosaccharide-cos-reduces-antibiotics-dose-and-prevents-antibiotics-caused-side-effects-in-adolescent-idiopathic-scoliosis-ais-patients-with-spinal-fusion-surgery
#5
Yang Qu, Jinyu Xu, Haohan Zhou, Rongpeng Dong, Mingyang Kang, Jianwu Zhao
Antibiotics are always considered for surgical site infection (SSI) in adolescent idiopathic scoliosis (AIS) surgery. However, the use of antibiotics often causes the antibiotic resistance of pathogens and side effects. Thus, it is necessary to explore natural products as drug candidates. Chitin Oligosaccharide (COS) has anti-inflammation and anti-bacteria functions. The effects of COS on surgical infection in AIS surgery were investigated. A total of 312 AIS patients were evenly and randomly assigned into control group (CG, each patient took one-gram alternative Azithromycin/Erythromycin/Cloxacillin/Aztreonam/Ceftazidime or combined daily), experiment group (EG, each patient took 20 mg COS and half-dose antibiotics daily), and placebo group (PG, each patient took 20 mg placebo and half-dose antibiotics daily)...
March 14, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28335205/photosensitizer-embedded-polyacrylonitrile-nanofibers-as-antimicrobial-non-woven-textile
#6
Sarah L Stanley, Frank Scholle, Jiadeng Zhu, Yao Lu, Xiangwu Zhang, Xingci Situ, Reza A Ghiladi
Toward the objective of developing platform technologies for anti-infective materials based upon photodynamic inactivation, we employed electrospinning to prepare a non-woven textile comprised of polyacrylonitrile nanofibers embedded with a porphyrin-based cationic photosensitizer; termed PAN-Por((+)). Photosensitizer loading was determined to be 34.8 nmol/mg material; with thermostability to 300 °C. Antibacterial efficacy was evaluated against four bacteria belonging to the ESKAPE family of pathogens (Staphylococcus aureus; vancomycin-resistant Enterococcus faecium; Acinetobacter baumannii; and Klebsiella pneumonia), as well as Escherichia coli...
April 20, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28334924/throat-swabs-in-children-with-respiratory-tract-infection-associations-with-clinical-presentation-and-potential-targets-for-point-of-care-testing
#7
Hannah V Thornton, Alastair D Hay, Niamh M Redmond, Sophie L Turnbull, Hannah Christensen, Tim J Peters, John P Leeming, Andrew Lovering, Barry Vipond, Peter Muir, Peter S Blair
Background and objectives.: Diagnostic uncertainty over respiratory tract infections (RTIs) in primary care contributes to over-prescribing of antibiotics and drives antibiotic resistance. If symptoms and signs predict respiratory tract microbiology, they could help clinicians target antibiotics to bacterial infection. This study aimed to determine relationships between symptoms and signs in children presenting to primary care and microbes from throat swabs. Methods.: Cross-sectional study of children ≥3 months to <16 years presenting with acute cough and RTI, with subset follow-up...
February 18, 2017: Family Practice
https://www.readbyqxmd.com/read/28334005/multi-scale-model-of-drug-induced-adaptive-resistance-of-gram-negative-bacteria-to-polymyxin-b
#8
Wojciech Krzyzanski, Gauri G Rao
The purpose of this report is to apply multi-scale modeling using the theory of physiologically structured populations (PSP) to develop a mathematical model for antimicrobial resistance based on a heterogeneous distribution of receptors and affinities among bacterial cells. The theory has been tested on data obtained from an in vitro static time-kill infection model analyzing the pharmacodynamics of polymyxin B against Gram-negative bacteria. The drug binding parameter KD (dissociation equilibrium constant) is assumed to vary between the bacterial cells...
2017: PloS One
https://www.readbyqxmd.com/read/28332754/detection-of-carbapenemase-producing-organisms-with-a-carbapenem-based-fluorogenic-probe
#9
Wuyu Mao, Lingying Xia, Hexin Xie
Antibiotic resistance has become a major challenge to public health worldwide. This crisis is further aggravated by the increasing emergence of bacterial resistance to carbapenems, typically considered as the antibiotics of last resort, which is mainly due to the production of carbapenem-hydrolyzing carbapenemases in bacteria. Herein, the carbapenem-based fluorogenic probe CB-1 with an unprecedented enamine-BODIPY switch is developed for the detection of carbapenemase activity. This reagent is remarkably specific towards carbapenemases over other prevalent β-lactamases...
March 23, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28332311/characterization-of-blue-light-irradiation-effects-on-pathogenic-and-nonpathogenic-escherichia-coli
#10
Courtney M Abana, John R Brannon, Rebecca A Ebbott, Taryn L Dunigan, Kirsten R Guckes, Hubaida Fuseini, Jennifer Powers, Bridget R Rogers, Maria Hadjifrangiskou
Blue light irradiation (BLI) is an FDA-approved method for treating certain types of infections, like acne, and is becoming increasingly attractive as an antimicrobial strategy as the prevalence of antibiotic-resistant "superbugs" rises. However, no study has delineated the effectiveness of BLI throughout different bacterial growth phases, especially in more BLI-tolerant organisms such as Escherichia coli. While the vast majority of E. coli strains are nonpathogenic, several E. coli pathotypes exist that cause infection within and outside the gastrointestinal tract...
March 22, 2017: MicrobiologyOpen
https://www.readbyqxmd.com/read/28331806/myroides-bacteremia-a-case-report-and-concise-review
#11
Rudra Beharrysingh
Myroides species are bacteria found commonly in environmental sources, such as water and soil. Despite this, they are historically uncommon pathogens, tending to affect primarily immunocompromised hosts. Based on a review of the current cases listed in the U.S. National Institutes of Health's National Library of Medicine (Table 1), there have been 48 reported cases of infection to date, one third of which have been reported in only the last seven years. This report outlines a case of bacteremia caused by Myroides species occurring in a diabetic male on chemotherapy for Merkel cell cancer...
2017: IDCases
https://www.readbyqxmd.com/read/28330238/isolation-of-antimicrobial-resistant-bacteria-in-upper-respiratory-tract-infections-of-patients
#12
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/28328161/synthesis-in-vitro-evaluation-and-68-ga-radiolabeling-of-cdp1-towards-pet-ct-imaging-of-bacterial-infection
#13
Jyotibon Dutta, Sooraj Baijnath, Anou M Somboro, Savania Nagiah, Fernando Albericio, Beatriz G de la Torre, Biljana Marjanovic-Painter, Jan Rijn Zeevaart, Mike Sathekge, Hendrik G Kruger, Anil Chuturgoon, Tricia Naicker, Thomas Ebenhan, Thavendran Govender
Bacterial infections are a major concern in the human health sector due to poor diagnosis and development of multi drug resistant strains. PET/CT provides a means for the noninvasive detection and localization of the infectious foci; however, the radiotracers available are either cumbersome to prepare or their exact contribution towards the imaging is not yet established. Human antimicrobial peptides are of interest for development as PET radiotracers as they are an integral component of the immune system, non-immunogenic towards the recipient and show selectivity towards pathogens such as bacteria...
March 22, 2017: Chemical Biology & Drug Design
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
#14
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/28326154/probiotic-lactobacillus-reuteri-has-antifungal-effects-on-oral-candida-species-in-vitro
#15
Mette Rose Jørgensen, Camilla Kragelund, Peter Østrup Jensen, Mette Kirstine Keller, Svante Twetman
Background: An alternative approach for managing Candida infections in the oral cavity by modulating the oral microbiota with probiotic bacteria has been proposed. Objective: The aim was to investigate the antifungal potential of the probiotic bacterium Lactobacillus reuteri (DSM 17938 and ATCC PTA 5289) against six oral Candida species (C. albicans, C. glabrata, C. krusei, C. tropicalis, C. dubliniensis, and C. parapsilosis). Design: The lactobacilli were tested for their ability to co-aggregate with and inhibit the growth of the yeasts assessed by spectrophotometry and the agar overlay inhibition assay...
2017: Journal of Oral Microbiology
https://www.readbyqxmd.com/read/28326075/advantages-of-the-silkworm-as-an-animal-model-for-developing-novel-antimicrobial-agents
#16
REVIEW
Suresh Panthee, Atmika Paudel, Hiroshi Hamamoto, Kazuhisa Sekimizu
The demand for novel antibiotics to combat the global spread of multi drug-resistant pathogens continues to grow. Pathogenic bacteria and fungi that cause fatal human infections can also kill silkworms and the infected silkworms can be cured by the same antibiotics used to treat infections in the clinic. As an invertebrate model, silkworm model is characterized by its convenience, low cost, no ethical issues. The presence of conserved immune response and similar pharmacokinetics compared to mammals make silkworm infection model suitable to examine the therapeutic effectiveness of antimicrobial agents...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28325856/prevalence-of-undiagnosed-asymptomatic-bacteriuria-and-associated-risk-factors-during-pregnancy-a-cross-sectional-study-at-two-tertiary-centres-in-cairo-egypt
#17
Mohamed Abdel-Aziz Elzayat, Ashton Barnett-Vanes, Mohamed Farag Elmorsy Dabour, Feng Cheng
BACKGROUND: The prevalence of asymptomatic bacteriuria (ASB) during pregnancy is poorly understood in Egypt-a country with a high birth rate. OBJECTIVES: To determine the prevalence of ASB among pregnant women booking at El Hussein and Sayed Galal Hospitals in Al-Azhar University in Egypt; and to observe the relationship between ASB prevalence and risk factors such as socioeconomic level and personal hygiene. SETTING: Obstetrics and gynaecology clinics of 2 university hospitals in the capital of Egypt...
March 21, 2017: BMJ Open
https://www.readbyqxmd.com/read/28325540/corrigendum-to-rates-of-susceptibility-of-carbapenems-ceftobiprole-and-colistin-against-clinically-important-bacteria-collected-from-intensive-care-units-in-2007-results-from-the-surveillance-of-multicenter-antimicrobial-resistance-in-taiwan-smart-j-microbiol
#18
Shio-Shin Jean, Wen-Sen Lee, Kwok-Woon Yu, Chun-Hsing Liao, Chin-Wan Hsu, Feng-Yi Chang, Wen-Chien Ko, Ray-Jade Chen, Jiunn-Jong Wu, Yen-Hsu Chen, Yao-Shen Chen, Jien-Wei Liu, Min-Chi Lu, Carlos Lam, Cheng-Yi Liu, Po-Ren Hsueh
No abstract text is available yet for this article.
March 16, 2017: Journal of Microbiology, Immunology, and Infection, Wei Mian Yu Gan Ran za Zhi
https://www.readbyqxmd.com/read/28323562/corynebacterium-pseudotuberculosis-infection-in-patagonian-huemul-hippocamelus-bisulcus
#19
Nelly Morales, Dennis Aldridge, Andrea Bahamonde, Julio Cerda, Claudio Araya, Rodrigo Muñoz, María Esther Saldías, Claudio Lecocq, Marcela Fresno, Pedro Abalos, Patricio Retamal
Corynebacterium pseudotuberculosis is an intracellular bacteria and the etiologic agent of caseous lymphadenitis in domestic and wildlife species. We report C. pseudotuberculosis infection in Patagonian huemul ( Hippocamelus bisulcus ) from the Cerro Castillo National Reserve, Region of Aysen, Chile. Subcutaneous abscesses in the abdominal and pectoral regions from two animals were sampled and bacteriologic isolation was performed. In both cases, we isolated a C. pseudotuberculosis strain belonging to the ovine genotype...
March 21, 2017: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/28323406/affinity-selection-mass-spectrometry-identifies-a-novel-antibacterial-rna-polymerase-inhibitor
#20
Scott S Walker, David Degen, Elliott Nickbarg, Donna Carr, Aileen Soriano, Mihir Baran Mandal, Ronald E Painter, Payal R Sheth, Li Xiao, Xinwei Sher, Nicholas Murgolo, Jing Su, David B Olsen, Richard H Ebright, Katherine Young
The growing prevalence of drug-resistant Gram-negative bacteria is a significant global threat to human health. Rifampicin, an RNA polymerase-targeting agent, is an important part of the antibacterial armamentarium; however the emergence of resistance requires that it be used against only certain infections and usually in combination with another antibiotic. While rifampicin has significant clinical limitations, it does show that bacterial RNA polymerase can be an effective target for antibacterial intervention...
March 21, 2017: ACS Chemical Biology
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