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Skin infection bacteria

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https://www.readbyqxmd.com/read/29155272/oral-immunization-with-recombinant-lactobacillus-casei-expressing-ompai-confers-protection-against-aeromonas-veronii-challenge-in-common-carp-cyprinus-carpio
#1
Dong-Xing Zhang, Yuan-Huan Kang, Long Chen, Shahrood Ahmed Siddiqui, Chun-Feng Wang, Ai-Dong Qian, Xiao-Feng Shan
Aeromonas veronii is a gram-negative pathogen capable of infecting both fish and mammals, including humans, and natural infection in fish results in irreparable damage to the aquaculture industry. Lactic acid bacteria (LAB) have a number of properties that make them attractive candidates as delivery vehicles for presentation to the mucosa sites of compounds with pharmaceutical interest, in particular vaccines. In this study, we generated two recombinant Lactobacillus casei (surface-displayed or secretory) expressing the OmpAI of A...
November 16, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29152103/myxinidin2-and-myxinidin3-suppress-inflammatory-responses-through-stat3-and-mapks-to-promote-wound-healing
#2
Hyo Mi Han, Sujin Ko, Min-Ju Cheong, Jeong Kyu Bang, Chang Ho Seo, Tudor Luchian, Yoonkyung Park
Skin wounds are continuously exposed to bacteria and can easily become infected. Infected wounds require antibiotic treatment, and infections caused by drug-resistant bacteria are an important public health problem. Antimicrobial peptides have broad-spectrum antibacterial activity, induce little or no drug resistance and may be suitable for treating skin infections caused by drug-resistant bacteria. We previously reported the design and function of myxinidin and myxinidin analogues. Here we showed that myxinidin2 and myxinidin3 exhibit antimicrobial and anti-biofilm activities against antibiotic-resistant Staphylococcus aureus, Acinetobacter baumannii, and Pseudomonas aeruginosa in high salt environments and in gelatin...
October 20, 2017: Oncotarget
https://www.readbyqxmd.com/read/29151421/-disposable-nursing-applicator-pocket-of-indwelling-central-venous-catheter
#3
Congli Wei, Chunyuan Ma
Catheter related infection is the most common complication of central venous catheter, which pathogen mainly originate from the pipe joint and the skin around puncture site. How to prevent catheter infection is an important issue in clinical nursing. The utility model disclosed a "disposable nursing applicator-pocket of indwelling central venous catheter", which is mainly used for the fixation and the protection. The main structure consists of two parts, one is medical applicator to protect the skin around puncture site, and the other is gauze pocket to protect the catheter external connector...
November 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/29150768/toe-web-intertrigo-in-kaposi-s-sarcoma-patients-a-microbiological-study-in-a-large-cohort-of-patients
#4
G Nazzaro, A Tourlaki, B Scoppio, A Restelli, A Grancini, L Brambilla
Kaposi 's sarcoma (KS) is a rare multifocal angioproliferative disease associated with human herpes virus 8 (HHV-8) infection, characterized by cutaneous nodules or plaques especially on the lower limbs. Some skin modifications, such as chronic lymphedema, plantar hyperkeratosis and interdigital desquamation, may be associated with consequent impairment of the local immunosurveillance and increased risk of some bacterial or mycotic infections. With the objective of evaluating if bacterial or mycotic infections in KS patients are supported by different microorganisms compared to control patients, we performed an observational retrospective study, comparing positive cultural swabs of interdigital intertrigo of KS patients with positive cultural swabs of interdigital intertrigo of patients admitted to our dermatologic unit during the last 10 years...
November 17, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/29145798/experimental-transmission-of-bovine-digital-dermatitis-to-sheep-development-of-an-infection-model
#5
Jennifer H Wilson-Welder, Jarlath E Nally, David P Alt, Mitchell V Palmer, John Coatney, Paul Plummer
Digital dermatitis is an infectious cause of lameness primarily affecting cattle but also described in sheep, goats, and wild elk. Digital dermatitis is a polymicrobial infection, involving several Treponema species and other anaerobic bacteria. Although the exact etiology has not been demonstrated, a number of bacterial, host, and environmental factors are thought to contribute to disease development. To study host-bacterial interactions, a reproducible laboratory model of infection is required. The objective of this study was to demonstrate key aspects of bovine digital dermatitis lesions in an easy-to-handle sheep model...
January 1, 2017: Veterinary Pathology
https://www.readbyqxmd.com/read/29140982/development-standardization-and-testing-of-a-bacterial-wound-infection-model-based-on-ex-vivo-human-skin
#6
Christoph Schaudinn, Christin Dittmann, Jana Jurisch, Michael Laue, Nazende Günday-Türeli, Ulrike Blume-Peytavi, Annika Vogt, Fiorenza Rancan
Current research on wound infections is primarily conducted on animal models, which limits direct transferability of these studies to humans. Some of these limitations can be overcome by using-otherwise discarded-skin from cosmetic surgeries. Superficial wounds are induced in fresh ex vivo skin, followed by intradermal injection of Pseudomonas aeruginosa under the wound. Subsequently, the infected skin is incubated for 20 hours at 37°C and the CFU/wound are determined. Within 20 hours, the bacteria count increased from 107 to 109 bacteria per wound, while microscopy revealed a dense bacterial community in the collagen network of the upper wound layers as well as numerous bacteria scattered in the dermis...
2017: PloS One
https://www.readbyqxmd.com/read/29135999/-life-like-assessment-of-antimicrobial-surfaces-by-a-new-touch-transfer-assay-displays-strong-superiority-of-a-copper-alloy-compared-to-silver-containing-surfaces
#7
Johannes Karl-Mark Knobloch, Sabrina Tofern, Wladimir Kunz, Sara Schütze, Michael Riecke, Werner Solbach, Thomas Wuske
Transmission of bacteria from inanimate surfaces in healthcare associated environments is an important source of hospital acquired infections. A number of commercially available medical devices promise to fulfill antibacterial activity to reduce environmental contamination. In this study we developed a touch transfer assay modeling fingerprint transmission to investigate the antibacterial activity of surfaces, with confirmed antibacterial activity by a modified ISO 22196 (JIS Z 2801) assay to test such surfaces under more realistic conditions...
2017: PloS One
https://www.readbyqxmd.com/read/29119936/recent-patents-on-light-based-anti-infective-approaches
#8
Imran Ahmed, Yanyan Fang, Min Lu, Quan Yan, Ahmed Mohamed Kamel El-Hussein, Michael R Hamblin, Tianhong Dai
BACKGROUND: Antibiotic resistance is one of the most serious health threats to modern medicine. The lack of potent antibiotics puts us at a disadvantage in the fight against infectious diseases, especially those caused by antibiotic-resistant microbial strains. To this end, an urgent need to search for alternative antimicrobial approaches has arisen. In the last decade, light-based therapy has made significant strides in this fight to combat antibiotic resistance among various microbial strains...
November 7, 2017: Recent Patents on Anti-infective Drug Discovery
https://www.readbyqxmd.com/read/29119317/prodigiosin-violacein-and-volatile-organic-compounds-produced-by-widespread-cutaneous-bacteria-of-amphibians-can-inhibit-two-batrachochytrium-fungal-pathogens
#9
Douglas C Woodhams, Brandon C LaBumbard, Kelly L Barnhart, Matthew H Becker, Molly C Bletz, Laura A Escobar, Sandra V Flechas, Megan E Forman, Anthony A Iannetta, Maureen D Joyce, Falitiana Rabemananjara, Brian Gratwicke, Miguel Vences, Kevin P C Minbiole
Symbiotic bacteria can produce secondary metabolites and volatile compounds that contribute to amphibian skin defense. Some of these symbionts have been used as probiotics to treat or prevent the emerging disease chytridiomycosis. We examined 20 amphibian cutaneous bacteria for the production of prodigiosin or violacein, brightly colored defense compounds that pigment the bacteria and have characteristic spectroscopic properties making them readily detectable, and evaluated the antifungal activity of these compounds...
November 9, 2017: Microbial Ecology
https://www.readbyqxmd.com/read/29114245/the-selective-interaction-of-pistacia-lentiscus-oil-vs-human-streptococci-an-old-functional-food-revisited-with-new-tools
#10
Germano Orrù, Cristina Demontis, Antonello Mameli, Enrica Tuveri, Pierpaolo Coni, Giuseppina Pichiri, Ferdinando Coghe, Antonella Rosa, Paola Rossi, Guy D'hallewin
Pistacia lentiscus berry oil (LBO) represents a typical vegetal product of the Mediterranean basin that has been formally used in traditional cuisine for 100s of years. In addition to its interesting alimentary properties, this product could represent an interesting candidate in the field of research on the study of new anti-infective agents. In fact, in Mediterranean countries, lentisk oil still continues to be widely used in folk medicine for oral and skin affections, in particular, acute gingivitis, pediatric skin infections such as impetigo and foot plaques, and biofilm related infections often associated with Streptococcus spp...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29110020/granuloma-annulare-and-morphea-correlation-with-borrelia-burgdorferi-infections-and-chlamydia-related-bacteria
#11
Lauri Tolkki, Kati Hokynar, Seppo Meri, Jaana Panelius, Mirja Puolakkainen, Annamari Ranki
A retrospective study of 109 skin biopsies with granuloma annulare (GA) or morphea histology from patients with suspected tick bite was performed. Biopsies were tested for cutaneous Borrelia burgdorferi DNA using PCR. The same biopsies were analysed for tick-borne novel agents, Chlamydia-related bacteria (members of the Chlamydiales order), using a PCR-based method. Borrelia DNA was detected in 7/73 (9.6%) biopsies with GA and in 1/36 (2.8 %) biopsies with morphea, while Chlamydiales DNA was found in 53/73 (72...
November 7, 2017: Acta Dermato-venereologica
https://www.readbyqxmd.com/read/29104260/antimicrobial-and-anti-proliferative-effects-of-skin-mucus-derived-from-dasyatis-pastinaca-linnaeus-1758
#12
Virginia Fuochi, Giovanni Li Volti, Giuseppina Camiolo, Francesco Tiralongo, Cesarina Giallongo, Alfio Distefano, Giulio Petronio Petronio, Ignazio Barbagallo, Maria Viola, Pio Maria Furneri, Michelino Di Rosa, Roberto Avola, Daniele Tibullo
Resistance to chemotherapy occurs in various diseases (i.e., cancer and infection), and for this reason, both are very difficult to treat. Therefore, novel antimicrobial and chemotherapic drugs are needed for effective antibiotic therapy. The aim of the present study was to assess the antimicrobial and anti-proliferative effects of skin mucus derived from Dasyatis pastinaca (Linnaeus, 1758). Our results showed that skin mucus exhibited a significant and specific antibacterial activity against Gram-negative bacteria but not against Gram-positive bacteria...
November 1, 2017: Marine Drugs
https://www.readbyqxmd.com/read/29104090/two-novel-calreticulin-related-molecules-with-microbial-binding-and-phagocytosis-enhancing-capacity-in-the-half-smooth-tongue-sole-cynoglossus-semilaevis
#13
Guanghua Wang, Zengjie Jiang, Shuwen He, Min Zhang
Calreticulin (CRT) is highly conserved chaperone located in the endoplasmic reticulum. It plays important roles in innate immunity. Although various immune-related functions of CRT have been reported in vertebrates and invertebrates, information on the potential functions of teleost CRT is very limited. In the present study, we characterized two calreticulin-related molecules from tongue sole (Cynoglossus semilaevis), calreticulin-like1 and calreticulin-like2 (CsCRTL1 and CsCRTL2). CsCRTL1and CsCRTL2 contain signature CRT motifs that are highly conserved in different species...
November 6, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29098406/molecular-characterization-and-bioactivity-evaluation-of-two-novel-bombinin-peptides-from-the-skin-secretion-of-oriental-fire-bellied-toad-bombina-orientalis
#14
Xin Peng, Chang Zhou, Xuan Hou, Yao Liu, Zhengming Wang, Xiaolin Peng, Zhe Zhang, Ran Wang, Dexin Kong
Following the exploration of biochemicals in amphibian defensive skin secretion, great attention has been focused on the novel bioactive peptides with unique molecular structures and complicated features and functions. In this study, the skin secretion of Oriental fire-bellied toad, Bombina orientalis, was acquired to search peptides with therapeutic potential. Using "shotgun" cloning technique, a full-length peptide precursor co-encoding two novel bombinin peptides was cloned from the skin secretion-derived cDNA library of B...
November 2, 2017: Amino Acids
https://www.readbyqxmd.com/read/29095885/concurrent-jellyfish-blooms-and-tenacibaculosis-outbreaks-in-northern-norwegian-atlantic-salmon-salmo-salar-farms
#15
Sverre Bang Småge, Øyvind Jakobsen Brevik, Kathleen Frisch, Kuninori Watanabe, Henrik Duesund, Are Nylund
Tenacibaculosis is an increasing problem in the Norwegian Atlantic salmon aquaculture industry causing significant economic losses. In September 2015, two separate outbreaks of suspected tenacibaculosis occurred at two Atlantic salmon farms in Finnmark County in Northern Norway. The events resulted in major losses of smolts newly transferred into seawater. Prior to, and during the outbreaks, large numbers of small jellyfish, identified as Dipleurosoma typicum (Boeck) were observed in the vicinity of the farms and inside the net-pens...
2017: PloS One
https://www.readbyqxmd.com/read/29090420/soft-tissue-infection-secondary-to-cellulitis-killed-st-john-of-the-cross-1542-1591
#16
Raffaella Bianucci, Otto Appenzeller, Peter Evans, Philippe Charlier, Antonio Perciaccante
PURPOSE: St. John of the Cross (1542-1591) died aged 49 years after 3 months of excruciating pain following a trivial lesion in his right foot. Erysipelas, a superficial bacterial infection of the skin, and subsequent sepsis were previously suggested as the cause of his death. Here, an alternative diagnosis is proposed. METHODS: An accurate perusal of his biography allowed the symptomatology, the clinical evolution, the depth of the infection and the associated systemic manifestations displayed by Fray John to be reconstructed...
October 31, 2017: Infection
https://www.readbyqxmd.com/read/29082999/nanofabrication-of-mechano-bactericidal-surfaces
#17
REVIEW
Denver P Linklater, Saulius Juodkazis, Elena P Ivanova
The search for alternatives to the standard methods of preventing bacterial adhesion and biofilm formation on biotic and abiotic surfaces alike has led to the use of biomimetics to reinvent through nanofabrication methods, surfaces, whereby the nanostructured topography is directly responsible for bacterial inactivation through physico-mechanical means. Plant leaves, insect wings, and animal skin have been used to inspire the fabrication of synthetic high-aspect-ratio nanopillared surfaces, which can resist bacterial colonisation...
November 9, 2017: Nanoscale
https://www.readbyqxmd.com/read/29072193/development-of-poly-1-8-octanediol-co-citrate-and-poly-acrylic-acid-nanofibrous-scaffolds-for-wound-healing-applications
#18
Allison Goins, Vidhya Ramaswamy, Elliott Dirr, Krista Dulany, Sean Irby, Antonio Webb, Josephine Allen
Wound care is one of the leading health care problems in the United States costing billions of dollars yearly. Annually, millions of acute wounds occur due to surgical procedures or traumas such as burns and abrasions, and these wounds can become non-healing due to bacterial infection or underlying pathologies. Current wound care treatments include the use of bioinert constructs combined with topical administration of anti-bacterial agents and growth factors. However, there is a growing need for the development of bioactive wound dressing materials that are able to promote wound healing and the regeneration of healthy tissue...
October 26, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/29063621/impetigo-a-need-for-new-therapies-in-a-world-of-increasing-antimicrobial-resistance
#19
N M D'Cunha, G M Peterson, K E Baby, J Thomas
WHAT IS KNOWN AND OBJECTIVE: Impetigo is a highly contagious bacterial skin infection and is one of the most common skin infections in children. Antibiotics are the first-line treatment when multiple lesions exist, but with an increasing prevalence of antibiotic-resistant bacteria the successful management of impetigo in the future is an area of concern. COMMENT: Current treatment options that favour the use of oral antibiotic therapy are increasingly problematic...
October 23, 2017: Journal of Clinical Pharmacy and Therapeutics
https://www.readbyqxmd.com/read/29063519/clinical-pharmacokinetics-and-pharmacodynamics-of-oxazolidinones
#20
REVIEW
Claire Roger, Jason A Roberts, Laurent Muller
Oxazolidinones are a class of synthetic antimicrobial agents with potent activity against a wide range of multidrug-resistant Gram-positive pathogens including methicillin-resistant Staphylococcus aureus and vancomycin-resistant enterococci. Oxazolidinones exhibit their antibacterial effects by inhibiting protein synthesis acting on the ribosomal 50S subunit of the bacteria and thus preventing formation of a functional 70S initiation complex. Currently, two oxazolidinones have been approved by the US Food and Drug Administration: linezolid and more recently tedizolid...
October 23, 2017: Clinical Pharmacokinetics
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