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Skin source infections

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https://www.readbyqxmd.com/read/29024922/isolation-and-whole-genome-analysis-of-endospore-forming-bacteria-from-heroin
#1
Jörn Kalinowski, Björn Ahrens, Arwa Al-Dilaimi, Anika Winkler, Daniel Wibberg, Uwe Schleenbecker, Christian Rückert, Roman Wölfel, Gregor Grass
Infections caused by endospore-forming bacteria have been associated with severe illness and death among persons who inject drugs. Analysis of the bacteria residing in heroin has thus been biased towards species that affect human health. Similarly, exploration of the bacterial diversity of seized street market heroin correlated with the skin microflora of recreational heroin users insofar as different Staphylococus spp. or typical environmental endospore formers including Bacillus cereus and other Bacilli outside the B...
October 4, 2017: Forensic Science International. Genetics
https://www.readbyqxmd.com/read/29021723/bacterial-infections-in-burn-wound-patients-at-a-tertiary-teaching-hospital-in-accra-ghana
#2
O A Forson, E Ayanka, M Olu-Taiwo, P J Pappoe-Ashong, P J Ayeh-Kumi
Intact human skin surface is essential for protection against infection, preservation of body fluid homeostasis and thermoregulation. Burn injury compromises the skin barrier and enables bacterial infection, hence delaying burn wound healing. This study aimed to determine the microbial profile of burn wounds, and resistance patterns of microbes with respect to the source of the injured patient's wound. Fifty wound swab samples were collected from fifty burn patients at the Korle-Bu Teaching Hospital, Accra (KBTH)...
June 30, 2017: Annals of Burns and Fire Disasters
https://www.readbyqxmd.com/read/28994104/epidemiology-of-keratinocyte-carcinomas-after-organ-transplantation
#3
REVIEW
M M Madeleine, N S Patel, E I Plasmeijer, E A Engels, J N Bouwes Bavinck, A E Toland, A C Green
Keratinocyte carcinoma (KC) is the most common type of cancer among white populations, but it is even more common among solid organ transplant recipients (OTRs). The most frequent histological type of KC among OTRs is cutaneous squamous cell carcinoma (cSCC), followed by basal cell carcinoma, although the reverse is seen in the general population. Metastatic cSCCs are more frequent, and mortality is increased compared with immunocompetent populations. There is strong evidence that the risk of KC among OTRs rises with increasing time after transplantation and older age at transplantation, and that KC is enhanced in those with sun-damaged skin...
October 10, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/28994020/vitamin-d-and-the-skin-an-update-for-dermatologists
#4
REVIEW
Elio Kechichian, Khaled Ezzedine
Vitamin D plays a key role in skeletal and cardiovascular disorders, cancers, central nervous system diseases, reproductive diseases, infections, and autoimmune and dermatological disorders. The two main sources of vitamin D are sun exposure and oral intake, including vitamin D supplementation and dietary intake. Multiple factors are linked to vitamin D status, such as Fitzpatrick skin type, sex, body mass index, physical activity, alcohol intake, and vitamin D receptor polymorphisms. Patients with photosensitive disorders tend to avoid sun exposure, and this practice, along with photoprotection, can put this category of patients at risk for vitamin D deficiency...
October 9, 2017: American Journal of Clinical Dermatology
https://www.readbyqxmd.com/read/28991909/prevalence-intensity-and-risk-factors-of-tungiasis-in-kilifi-county-kenya-i-results-from-a-community-based-study
#5
Susanne Wiese, Lynne Elson, Felix Reichert, Barbara Mambo, Hermann Feldmeier
BACKGROUND: Tungiasis is a neglected tropical disease caused by female sand fleas (Tunga penetrans) embedded in the skin. The disease is associated with important morbidity. Tungiasis is endemic along the Coast of Kenya with a prevalence ranging from 11% to 50% in school-age children. Hitherto, studies on epidemiological characteristics of tungiasis in Africa are scanty. METHODS: In a cross-sectional study 1,086 individuals from 233 households in eight villages located in Kakuyuni and Malanga Sub-locations, Kilifi County, on the Kenyan Coast, were investigated...
October 9, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28953519/the-use-of-bilayered-fascia-lata-with-an-interpositional-omental-flap-for-autologous-repair-of-contaminated-abdominal-fascial-defects
#6
Hui Chai Fong, Bien-Keem Tan, Pierce Kh Chow, Hock Soo Ong
INTRODUCTION: Contaminated abdominal fascial defects, such as those seen in enterocutaneous fistula, or wound dehiscence with mesh exposure, are a significant source of morbidity and present unique reconstructive challenges. We present our technique of using the fascia lata, augmented with an interpositional omental flap, for complete autologous reconstruction of contaminated fascial defects, and the postoperative results of 3 cases. METHODS: Three patients with contaminated abdominal defects underwent wound debridement/fistula resection and immediate reconstruction with fascia lata and omentum flap...
November 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28942846/trichosporon-asahii-secretes-a-30-kda-aspartic-peptidase
#7
Roberta S Valle, Lívia S Ramos, Vanessa J Reis, Mariangela Ziccardi, Marcos Dornelas-Ribeiro, Cátia L Sodré, Marta H Branquinha, André L S Santos
Trichosporon asahii is a fungal opportunistic pathogen that causes superficial and deep-seated infections presenting high mortality. Very little is known about the virulence attributes produced by this fungus. Herein, aspartic peptidase production was identified in Brazilian clinical isolates of T. asahii by different methodologies. Initially, T. asahii strain 250 (from skin lesion) was inoculated in both liquid and solid culture media containing bovine serum albumin (BSA) as the sole nitrogenous source. A translucent halo around the fungal colony was observed from the 5th day of culture...
December 2017: Microbiological Research
https://www.readbyqxmd.com/read/28940611/perianal-pseudoverrucous-papules-and-nodules-in-hirschsprung-s-disease-rapid-resolution-with-oral-loperamide
#8
Francis H X Yap, Graham Thom
We report the case of a 2-year-old boy with Hirschsprung's disease who developed perianal pseudoverrucous papules and nodules subsequent to persistent diarrhea and stool leakage after Giardia infection. Bleeding from the papules resulted in iron deficiency anaemia requiring blood transfusion and iron infusion. Topical therapies used over 6 months were of limited benefit and colostomy was considered, but the condition completely resolved after commencement of oral loperamide. This demonstrates that perianal pseudoverrucous papules and nodules can be severe but are entirely reversible upon removal of the source of skin irritation...
September 21, 2017: Pediatric Dermatology
https://www.readbyqxmd.com/read/28937303/palliative-coverage-of-cranial-defect-following-failed-cranial-flap-for-advanced-squamous-cell-carcinoma-case-report
#9
Vyacheslav Makler, Jeffrey S Litt, N Scott Litofsky
INTRODUCTION: With advanced-stage head and neck cancers, patients may develop large and/or complex wounds despite multiple reconstruction attempts. Wound coverage may require novel approaches to palliate the patient. METHOD: We present the case of a 56-year-old female with advanced squamous cell carcinoma of the scalp and skull who required multiple surgical interventions. Despite our best reconstructive efforts, the patient subsequently developed scalp infection and sepsis, necessitating further debridement for source control...
September 22, 2017: Journal of Palliative Medicine
https://www.readbyqxmd.com/read/28935523/an-outbreak-of-burkholderia-cepacia-pseudobacteraemia-caused-by-intrinsically-contaminated-commercial-0-5-chlorhexidine-solution-in-neonatal-intensive-care-units
#10
Je Eun Song, Yee Gyung Kwak, Tae Hyun Um, Chong Rae Cho, Sollip Kim, In Sook Park, Jong Hee Hwang, Namhee Kim, Gang-Bok Oh
BACKGROUND: Burkholderia cepacia is intrinsically resistant to certain antiseptics. We experienced a sudden increase in the frequency of isolation of B. cepacia from blood cultures in a neonatal intensive care unit (NICU) of a university-affiliated hospital. AIM: An investigation was conducted to identify the source and to intervene in the ongoing infections. METHODS: The cases were defined as patients with positive blood cultures for B. cepacia in a NICU between November 2014 and January 2015...
September 18, 2017: Journal of Hospital Infection
https://www.readbyqxmd.com/read/28934124/n-halamine-biocidal-materials-with-superior-antimicrobial-efficacies-for-wound-dressings
#11
Buket Demir, Roy M Broughton, Mingyu Qiao, Tung-Shi Huang, S D Worley
This work demonstrated the successful application of N-halamine technology for wound dressings rendered antimicrobial by facile and inexpensive processes. Four N-halamine compounds, which possess different functional groups and chemistry, were synthesized. The N-halamine compounds, which contained oxidative chlorine, the source of antimicrobial activity, were impregnated into or coated onto standard non-antimicrobial wound dressings. N-halamine-employed wound dressings inactivated about 6 to 7 logs of Staphylococcus aureus and Pseudomonas aeruginosa bacteria in brief periods of contact time...
September 21, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28888869/development-of-a-set-of-multiplex-pcrs-for-detection-of-genes-encoding-cell-wall-associated-proteins-in-staphylococcus-pseudintermedius-isolates-from-dogs-humans-and-the-environment
#12
Nathita Phumthanakorn, Pattrarat Chanchaithong, Nuvee Prapasarakul
Staphylococcus pseudintermedius commonly colonizes the skin of dogs, whilst nasal carriage may occur in humans who are in contact with dogs or the environment of veterinary hospitals. Genes encoding cell wall-associated (CWA) proteins have been described in Staphylococcus aureus but knowledge of their occurrence in S. pseudintermedius is still limited. The aim of the study was to develop a method to detect S. pseudintermedius surface protein genes (sps) encoding CWA proteins, and to examine the distribution of the genes in isolates from different sources...
November 2017: Journal of Microbiological Methods
https://www.readbyqxmd.com/read/28888636/efficacy-of-oral-bcg-vaccination-in-protecting-free-ranging-cattle-from-natural-infection-by-mycobacterium-bovis
#13
Graham Nugent, Ivor J Yockney, Jackie Whitford, Frank E Aldwell, Bryce M Buddle
Vaccination of cattle against bovine tuberculosis could be a valuable control strategy, particularly in countries faced with intractable ongoing infection from a disease reservoir in wildlife. A field vaccination trial was undertaken in New Zealand. The trial included 1286 effectively free-ranging cattle stocked at low densities in a remote 7600ha area, with 55% of them vaccinated using Mycobacterium bovis BCG (Danish strain 1311). Vaccine was administered orally in all but 34 cases (where it was injected)...
September 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28875068/skin-bacterial-microbiome-of-a-generalist-puerto-rican-frog-varies-along-elevation-and-land-use-gradients
#14
Myra C Hughey, Janelle A Pena, Roberto Reyes, Daniel Medina, Lisa K Belden, Patricia A Burrowes
Host-associated microbial communities are ubiquitous among animals, and serve important functions. For example, the bacterial skin microbiome of amphibians can play a role in preventing or reducing infection by the amphibian chytrid fungus, Batrachochytrium dendrobatidis. Evidence suggests that environmental bacteria likely serve as a source pool for at least some of the members of the amphibian skin bacterial community, underscoring the potential for local environmental changes to disrupt microbial community source pools that could be critical to the health of host organisms...
2017: PeerJ
https://www.readbyqxmd.com/read/28864654/exogenous-polyunsaturated-fatty-acids-pufas-impact-membrane-remodeling-and-affect-virulence-phenotypes-among-pathogenic-vibrio-species
#15
Anna R Moravec, Andrew W Siv, Chelsea R Hobby, Emily N Lindsay, Layla V Norbash, Daniel J Shults, Steven J K Symes, David K Giles
The pathogenic Vibrio species (cholerae, parahaemolyticus and vulnificus) represent a constant threat to human health, causing food-borne and skin wound infections as a result of ingestion or exposure to contaminated water and seafood. Recent studies have highlighted Vibrio's ability to acquire fatty acids from environmental sources and assimilate them into cell membranes. The possession and conservation of such machinery provokes consideration of fatty acids as important factors in the pathogenic lifestyle of Vibrio species...
September 1, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28827792/characterization-of-monkeypox-virus-infection-in-african-rope-squirrels-funisciurus-sp
#16
Elizabeth A Falendysz, Juan G Lopera, Jeffrey B Doty, Yoshinori Nakazawa, Colleen Crill, Faye Lorenzsonn, Lem's N Kalemba, Monica D Ronderos, Andres Mejia, Jean M Malekani, Kevin Karem, Darin S Carroll, Jorge E Osorio, Tonie E Rocke
Monkeypox (MPX) is a zoonotic disease endemic in Central and West Africa and is caused by Monkeypox virus (MPXV), the most virulent Orthopoxvirus affecting humans since the eradication of Variola virus (VARV). Many aspects of the MPXV transmission cycle, including the natural host of the virus, remain unknown. African rope squirrels (Funisciurus spp.) are considered potential reservoirs of MPXV, as serosurveillance data in Central Africa has confirmed the circulation of the virus in these rodent species [1,2]...
August 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28807774/chlorin-e6-mediated-photodynamic-therapy-promotes-collagen-production-and-suppresses-mmps-expression-via-modulating-ap-1-signaling-in-p-acnes-stimulated-hacat-cells
#17
A-Reum Ryu, Mi-Young Lee
BACKGROUND: Photodynamic therapy (PDT) is a clinically approved therapeutics for cancers and non-neoplastic diseases, based on the use of a photosensitizer activated by a light. The feasibility of PDT depends on several factors, such as PDT dose, photosensitizer efficacy, type of light source, and target tissue irradiated. METHODS: In this study, the second generation photosensitizer chlorin e6 (Ce6) and halogen light were used to investigate their PDT effect on the collagen production and MMPs expression of heat killed P...
August 11, 2017: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/28807297/cutaneous-leishmaniosis-in-naturally-infected-dogs-in-paran%C3%A3-brazil-and-the-epidemiological-implications-of-leishmania-viannia-braziliensis-detection-in-internal-organs-and-intact-skin
#18
Ellen de Souza Marquez, Edilene Alcântara de Castro, Luciene Biazono Nabut, Magda Clara Vieira da Costa-Ribeiro, Ludmilla Dela Coletta Troiano Araújo, Saloe Bispo Poubel, André Luiz Gonçalves, Mariza Fordellone Rosa Cruz, Ana Paula Millet Evangelista Dos Santos Trad, Rafael Andre Ferreira Dias, Italmar Teodorico Navarro, Vanete Thomaz-Soccol
Environmental changes have occurred over the years, altering the eco-epidemiological pattern of leishmaniosis in the State of Paraná, Brazil, involving the pillars of the cycle (parasite, vectors, reservoir, and environment) and their interaction. Much has been discussed about the dog's role as a reservoir of the Leishmania (Viannia) braziliensis Vianna, 1911 transmission cycle. However, this question remains unanswered. The purpose of this study was to investigate, using parasitological and molecular methods, different samples in eight naturally infected dogs from an endemic rural locality where only L...
August 30, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28795212/a-review-of-adverse-events-related-to-prostatic-artery-embolization-for-treatment-of-bladder-outlet-obstruction-due-to-bph
#19
Airton Mota Moreira, André Moreira de Assis, Francisco Cesar Carnevale, Alberto Azoubel Antunes, Miguel Srougi, Giovanni Guido Cerri
INTRODUCTION: Minimally invasive procedures have gained great importance among the treatments for benign prostate hyperplasia (BPH) due to their low morbidity. Prostate artery embolization has emerged as a safe and effective alternative for patients with large volume BPH, not suited for surgery. MATERIALS AND METHODS: Low adverse events rates have been reported following prostate artery embolization and may include dysuria, urinary infection, hematuria, hematospermia, acute urinary retention and rectal bleeding...
August 9, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28783689/inhibition-of-hdac8-and-hdac9-by-microbial-short-chain-fatty-acids-breaks-immune-tolerance-of-the-epidermis-to-tlr-ligands
#20
James A Sanford, Ling-Juan Zhang, Michael R Williams, Jon A Gangoiti, Chun-Ming Huang, Richard L Gallo
Epidermal keratinocytes participate in immune defense through their capacity to recognize danger, trigger inflammation, and resist infection. However, normal skin immune function must tolerate contact with an abundant community of commensal microbes without inflammation. We hypothesized that microbial environmental conditions dictate the production of molecules that influence epigenetic events and cause keratinocytes to break innate immune tolerance. Propionibacterium acnes, a commensal skin bacterium, produced the short-chain fatty acids (SCFAs) propionate and valerate when provided a lipid source in hypoxic growth conditions, and these SCFAs inhibited histone deacetylase (HDAC) activity...
October 28, 2016: Science Immunology
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