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https://www.readbyqxmd.com/read/28097636/andrographolide-antibacterial-activity-against-common-bacteria-of-human-health-concern-and-possible-mechanism-of-action
#1
Malabika Banerjee, Debaprasad Parai, Subrata Chattopadhyay, Samir Kumar Mukherjee
Increasing bacterial resistance to common drugs is a major public health concern for the treatment of infectious diseases. Certain naturally occurring compounds of plant sources have long been reported to possess potential antimicrobial activity. This study was aimed to investigate the antibacterial activity and possible mechanism of action of andrographolide (Andro), a diterpenoid lactone from a traditional medicinal herb Andrographis paniculata. Extent of antibacterial action was assessed by minimal bactericidal concentration method...
January 17, 2017: Folia Microbiologica
https://www.readbyqxmd.com/read/28097306/universal-trichloroacetic-acid-peel-technique-for-light-and-dark-skin
#2
Nabil Fanous, Shadi Zari
Importance: Despite their great potential, medium and deep trichloroacetic acid peels are underused in light-skinned patients and are rarely used in darker-skinned patients because of the widespread fear of pigmentary complications and scarring. This concern has led many physicians to opt for the use of lighter types of peels (glycolic acid peel, Jessner peel, etc) and different lasers and intense light technologies. Trichloroacetic acid peels have been described in numerous publications...
January 12, 2017: JAMA Facial Plastic Surgery
https://www.readbyqxmd.com/read/28092397/update-on-orthokeratology-in-managing-progressive-myopia-in-children-efficacy-mechanisms-and-concerns
#3
Xintong Li, Ilana B Friedman, Norman B Medow, Cheng Zhang
Myopia is an important public health issue, and high myopia may lead to severe complications if left untreated. Orthokeratology lenses, worn overnight to reshape the cornea, are one of many recent modalities used to slow down the progression of myopia in children. This treatment has been proven successful, as evidenced by decreased spherical refractive error and axial length relative to the control at interval follow-up ranging from 6 months to 5 years. In this systematic review, the authors collected published controlled studies that analyzed the efficacy of orthokeratology lens wear and calculated longitudinal relative changes in axial length, revealing a weighted average of -45...
January 13, 2017: Journal of Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/28079631/the-role-of-methicillin-resistant-staphylococcus-aureus-in-skin-and-soft-tissue-infections
#4
Matteo Bassetti, Alessia Carnelutti, Elda Righi
PURPOSE OF REVIEW: Methicillin-resistant Staphylococcus aureus (MRSA) has become a major public health issue worldwide over the last years. MRSA is frequently implicated in the development of skin and soft tissue infections, leading to significant increases in morbidity, mortality and overall healthcare costs. RECENT FINDINGS: In order to face the threat of MRSA, major changes in clinical management of skin and soft tissue infections are required. The identification of populations at risk for the acquisition of infections due to MRSA, together with the improvement of the diagnostic techniques, is paramount...
January 12, 2017: Current Opinion in Infectious Diseases
https://www.readbyqxmd.com/read/28077102/effects-of-aqueous-extracts-of-taraxacum-officinale-on-expression-of-tumor-necrosis-factor-alpha-and-intracellular-adhesion-molecule-1-in-lps-stimulated-rmmvecs
#5
Ge Hu, Junjie Wang, Dong Hong, Tao Zhang, Huiqin Duan, Xiang Mu, Zuojun Yang
BACKGROUND: Mastitis gives rise to big financial burden to farm industry (mainly dairy production) and public health. Its incidence is currently high and therefore, highly effective treatments for therapy, especially with natural products are required. Taraxacum officinale has been reported to use for anti-inflammation. However, its effect on endothelium during mastitis has not been reported. METHODS: We firstly established inflammation experimental model of rat mammary microvascular endothelial cells (RMMVECs)...
January 11, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28076372/bad-to-the-bone-on-in-vitro-and-ex-vivo-microbial-biofilm-ability-to-directly-destroy-colonized-bone-surfaces-without-participation-of-host-immunity-or-osteoclastogenesis
#6
Adam Junka, Patrycja Szymczyk, Grzegorz Ziółkowski, Ewa Karuga-Kuzniewska, Danuta Smutnicka, Iwona Bil-Lula, Marzenna Bartoszewicz, Susan Mahabady, Parish Paymon Sedghizadeh
Bone infections are a significant public health burden associated with morbidity and mortality in patients. Microbial biofilm pathogens are the causative agents in chronic osteomyelitis. Research on the pathogenesis of osteomyelitis has focused on indirect bone destruction by host immune cells and cytokines secondary to microbial insult. Direct bone resorption by biofilm pathogens has not yet been seriously considered. In this study, common osteomyelitis pathogens (Staphylococcus aureus, Pseudomonas aeruginosa, Candida albicans, and Streptococcus mutans) were grown as biofilms in multiple in vitro and ex vivo experiments to analyze quantitative and qualitative aspects of bone destruction during infection...
2017: PloS One
https://www.readbyqxmd.com/read/28074051/anti-folates-potentiate-bactericidal-effects-of-other-antimicrobial-agents
#7
Kun Li, Xu-de Wang, Shan-Shan Yang, Jing Gu, Jiao-Yu Deng, Xian-En Zhang
Synergies between sulfonamides and other antimicrobial agents have long been reported, but the reason still remains unclear. Previously, Vilchèze et al. found that, sulfamethoxazole (SMX) could potentiate the bacterialcidal activity of isoniazid (INH) and rifampin (RIF) in Mycobacterium tuberculosis. To test if this was also the case in other bacteria, the ability to potentiate bactericidal effect of RIF by SMX was evaluated in Escherichia coli, Staphylococcus aureus, Salmonella typhimurium and Mycobacterium smegmatis...
January 11, 2017: Journal of Antibiotics
https://www.readbyqxmd.com/read/28057656/epidemiology-and-control-measures-of-outbreaks-due-to-antibiotic-resistant-organisms-in-europe-embargo-a-systematic-review-protocol
#8
Nithya Babu Rajendran, Beryl Primrose Gladstone, Jesús Rodríguez-Baño, Frangiscos Sifakis, Andreas Voss, Yehuda Carmeli, Francesco Robert Burkert, Panagiota Gkolia, Evelina Tacconelli
INTRODUCTION: Improving our understanding of outbreaks due to antibiotic-resistant bacteria (ARB) and their control is critical in the current public health scenario. The threat of outbreaks due to ARB requires multifaceted efforts. However, a global overview of epidemiological characteristics of outbreaks due to ARB and effective infection control measures is missing. In this paper, we describe the protocol of a systematic review aimed at mapping and characterising the epidemiological aspects of outbreaks due to ARB and infection control measures in European countries...
5, 2017: BMJ Open
https://www.readbyqxmd.com/read/28053593/evaluation-of-aerial-microbial-pollutants-in-al-haram-al-nabawi-during-pilgrimage-of-2013
#9
Kholoud M Alananbeh, Nahla Boquellah, Nadia Al Kaff, Majid Al Ahmadi
Al-Madinah Al-Munawwarah is the second holiest site in Islam. The possibility of new emerging microbes is valid due to the increased number of pilgrims. The objectives of the current study were to estimate the numbers of fungi and bacteria inside and outside Al-Haram Al-Nabawi and to find whether new bacterial and fungal species have emerged compared to previous studies. Air samples were collected twice a day from 12 spots and four directions during the pilgrim year of 2013 for four consecutive weeks by using the sedimentation method...
January 2017: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/28051232/epidemiology-of-nosocomial-infections-about-70-cases
#10
Mohamed Hedfi, Hassen Khouni, Youssra Massoudi, Cherif Abdelhedi, Karim Sassi, Adnen Chouchen
Background - The infections associated with care (IAS) constitute a major public health problem by the morbi- mortality than they generate as well as by their cost to support. The prevention of these infections has become a priority for several years everywhere in the world and in the occurrence in Tunisia. Aim - The purpose of our study is to assess the prevalence of nosocomial infections as well as develop their microbiologic  profiles in the different departments of  the hospital of FSI  Marsa Tunisia and try to highlight the risk factors that can influence these infections Methods - It was a retrospective study about  patients with noscomila infection who were admitted in the different care unit of the Hospital of FSI  Marsa and this on a period of 6 years from 1 January 2009 to 31 December 2014 Results - We have identified seventy(70) patients having contracted a nososcomial infection during the period of study for 24600 hospital admission, with a prevalence rate of 0...
July 2016: La Tunisie Médicale
https://www.readbyqxmd.com/read/28043220/epidemiology-of-bacterial-toxin-mediated-foodborne-gastroenteritis-outbreaks-in-australia-2001-to-2013
#11
Fiona J May, Benjamin G Polkinghorne, Emily J Fearnley
Bacterial toxin-mediated foodborne outbreaks, such as those caused by Clostridium perfringens, Staphylococcus aureus and Bacillus cereus, are an important and preventable cause of morbidity and mortality. Due to the short incubation period and duration of illness, these outbreaks are often under-reported. This is the first study to describe the epidemiology of bacterial toxin-mediated outbreaks in Australia. Using data collected between 2001 and 2013, we identify high risk groups and risk factors to inform prevention measures...
December 24, 2016: Communicable Diseases Intelligence Quarterly Report
https://www.readbyqxmd.com/read/28036310/comparison-of-hrm-analysis-and-three-rep-pcr-genomic-fingerprint-methods-for-rapid-typing-of-mrsa-at-a-brazilian-hospital
#12
Giovana Carolina Bodnar, Heloísa Moreira Martins, Caio Ferreira De Oliveira, Alexandre Tadachi Morey, Eliandro Reis Tavares, Juscélio Donizete Cardoso, Marcia Regina Eches Perugini, Lucy Megumi Yamauchi Lioni, Sueli Fumie Yamada-Ogatta, Renata Katsuko Takayama Kobayashi, Gerson Nakazato
INTRODUCTION: Infections caused by multidrug-resistant bacteria are increasingly common and represent a serious problem for public health. Staphylococcus aureus is one of the major agents of infections, and methicillin-resistant S. aureus (MRSA) has spread worldwide. The aim of this study was to phenotypically and genotypically characterize 55 MRSAs isolated in the University Hospital of Londrina, Paraná, Brazil, during 2010. METHODOLOGY: Bacterial isolates were characterized based on their antimicrobial susceptibility profile, biofilm production capacity, and staphylococcal chromosome cassette mec (SCCmec) type...
December 30, 2016: Journal of Infection in Developing Countries
https://www.readbyqxmd.com/read/28036110/detection-and-molecular-characterisation-of-livestock-associated-mrsa-in-raw-meat-on-retail-sale-in-north-west-england
#13
Andrew Fox, Bruno Pichon, Hayley Wilkinson, Michel Doumith, Robert L R Hill, Jim McLauchlin, Angela M Kearns
Limited data are available on the prevalence of livestock-associated methicillin-resistant Staphylococcus aureus (LA-MRSA) in the UK. We tested 124 raw meat samples for MRSA including pork (n=63), chicken (n=50) and turkey (n=11) collected from retail outlets in North West England between March and July 2015. MRSA was recovered from 9 (7.3%) samples (4 chicken, 3 pork, 2 turkey) from different butchers and supermarkets. Four were labelled of UK origin, 3 were from continental Europe; the origin was not specified for 2...
December 30, 2016: Letters in Applied Microbiology
https://www.readbyqxmd.com/read/28013236/comparing-genome-versus-proteome-based-identification-of-clinical-bacterial-isolates
#14
Valentina Galata, Christina Backes, Cédric Christian Laczny, Georg Hemmrich-Stanisak, Howard Li, Laura Smoot, Andreas Emanuel Posch, Susanne Schmolke, Markus Bischoff, Lutz von Müller, Achim Plum, Andre Franke, Andreas Keller
Whole-genome sequencing (WGS) is gaining importance in the analysis of bacterial cultures derived from patients with infectious diseases. Existing computational tools for WGS-based identification have, however, been evaluated on previously defined data relying thereby unwarily on the available taxonomic information.Here, we newly sequenced 846 clinical gram-negative bacterial isolates representing multiple distinct genera and compared the performance of five tools (CLARK, Kaiju, Kraken, DIAMOND/MEGAN and TUIT)...
December 24, 2016: Briefings in Bioinformatics
https://www.readbyqxmd.com/read/28011336/superparamagnetic-iron-oxide-encapsulating-polymersome-nanocarriers-for-biofilm-eradication
#15
Benjamin M Geilich, Ilia Gelfat, Srinivas Sridhar, Anne L van de Ven, Thomas J Webster
The rising prevalence and severity of antibiotic-resistant biofilm infections poses an alarming threat to public health worldwide. Here, biocompatible multi-compartment nanocarriers were synthesized to contain both hydrophobic superparamagnetic iron oxide nanoparticles (SPIONs) and the hydrophilic antibiotic methicillin for the treatment of medical device-associated infections. SPION co-encapsulation was found to confer unique properties, enhancing both nanocarrier relaxivity and magneticity compared to individual SPIONs...
March 2017: Biomaterials
https://www.readbyqxmd.com/read/28010909/a-meta-analysis-of-the-rates-of-staphylococcus-aureus-and-methicillin-resistant-s-aureus-contamination-on-the-surfaces-of-environmental-objects-that-health-care-workers-frequently-touch
#16
REVIEW
Dongxin Lin, Qianting Ou, Jialing Lin, Yang Peng, Zhenjiang Yao
BACKGROUND: Health care workers may potentially spread Staphylococcus aureus and methicillin-resistant S aureus (MRSA) to patients by contaminated high-touch items. We aimed to determine the pooled rates of S aureus and MRSA contamination and influencing factors. METHODS: A literature search of the PubMed, ScienceDirect, Embase, Ovid, and Scopus databases was performed. Pooled contamination rates were determined using random effect models. Subgroup and meta-regression analyses were conducted to identify factors potentially influencing the rates of S aureus and MRSA contamination...
December 20, 2016: American Journal of Infection Control
https://www.readbyqxmd.com/read/28008711/a-proteomics-assay-to-detect-eight-cbrn-relevant-toxins-in-food
#17
Benoit Gilquin, Michel Jaquinod, Mathilde Louwagie, Sylvie Kieffer-Jaquinod, Alexandra Kraut, Myriam Ferro, François Becher, Virginie Brun
A proteomics assay was set up to analyze food substrates for eight toxins of the CBRN (chemical, biological, radiological and nuclear) threat, namely ricin, Clostridium perfringens epsilon toxin (ETX), Staphylococcus aureus enterotoxins (SEA, SEB and SED), shigatoxins from Shigella dysenteriae and entero-hemorragic Escherichia coli strains (STX1 and STX2) and Campylobacter jejuni cytolethal distending toxin (CDT). The assay developed was based on an antibody-free sample preparation followed by bottom-up LC-MS/MS analysis operated in targeted mode...
January 2017: Proteomics
https://www.readbyqxmd.com/read/28008253/novel-antimicrobial-peptide-modified-azithromycin-loaded-liposomes-against-methicillin-resistant-staphylococcus-aureus
#18
Xiaowei Liu, Zhan Li, Xiaodong Wang, Yujuan Chen, Fengbo Wu, Ke Men, Ting Xu, Yan Luo, Li Yang
Infections caused by multidrug-resistant bacteria, such as methicillin-resistant Staphylococcus aureus (MRSA), have become a public threat; therefore, development of new antimicrobial drugs or strategies is urgently required. In this study, a new antibacterial peptide DP7-C (Chol-suc-VQWRIRVAVIRK-NH2) and DP7-C-modified azithromycin (AZT)-loaded liposomes (LPs) are developed for the treatment of MRSA infection, and it was found that DP7-C inserted into the LP lipid bilayer not only functioned as a carrier to encapsulate the antibiotic AZT but also synergized the antibacterial effect of the encapsulated AZT...
2016: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28005484/state-health-department-requirements-for-reporting-of-antibiotic-resistant-infections-by-providers-united-states-2013-and-2015
#19
Monika Pogorzelska-Maziarz, Eileen J Carter, Mary Lou Manning, Elaine L Larson
Due to the high burden of antibiotic-resistant infections, several US states mandate public reporting of these infections. To examine the extent to which state departments of health require reporting of antibiotic-resistant infections, we abstracted data from lists of reportable conditions from all 50 states at 2 time points, May 2013 and May 2015. Requirements varied substantially by state. In 2015, most states (n = 44) required reporting of at least 1 antibiotic-resistant infection; vancomycin-intermediate and/or vancomycin-resistant Staphylococcus aureus was the most frequently reportable infection (n = 40)...
January 2017: Public Health Reports
https://www.readbyqxmd.com/read/27999440/antibacterial-effect-of-antibiotic-loaded-sba-15-on-biofilm-formation-by-staphylococcus-aureus-and-staphylococcus-epidermidis
#20
Anna Aguilar-Colomer, Juan Carlos Doadrio, Concepción Pérez-Jorge, Miguel Manzano, Maria Vallet-Regí, Jaime Esteban
Staphylococcus aureus and Staphylococcus epidermidis are human pathogens involved in implant-related infections. During those diseases, they are able to form biofilms showing resistance to the effect of many different antibiotics. Drug delivery systems allow a local and effective delivery of antibiotics at high concentrations in the infected tissue without causing the cytotoxic effects commonly linked to systemic administration. We report the use of a porous ceramic biomaterial, such as SBA-15 loaded with antibiotics, to deliver them directly to the infected tissue...
December 21, 2016: Journal of Antibiotics
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