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Skin source infections

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https://www.readbyqxmd.com/read/28329329/increased-transmissibility-of-leishmania-donovani-from-the-mammalian-host-to-vector-sand-flies-after-multiple-exposures-to-sand-fly-bites
#1
Joanna G Valverde, Andrea Paun, Ehud Inbar, Audrey Romano, Michael Lewis, Kashinath Ghosh, David Sacks
Background: Patients with active visceral leishmaniasis are important reservoirs in the anthroponotic transmission cycle of Leishmania donovani. The role of the blood or skin as a source of infection to sand flies remains unclear, and the possible effect of multiple exposures to fly bites on transmissibility has not been addressed. Methods: L. donovani infected hamsters were exposed to xenodiagnoses with Lutzomyia longipalpis on the same or different sites on the abdomen on two consecutive days, or by artificial feeding on the skin or blood...
March 9, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28321999/factors-influencing-the-contamination-rate-of-human-organ-cultured-corneas
#2
Daniel Röck, Johanna Wude, Karl U Bartz-Schmidt, Efdal Yoeruek, Sebastian Thaler, Tobias Röck
PURPOSE: To assess the influence of donor, environment and storage factors on the contamination rate of organ-cultured corneas, to consider the microbiological species causing corneal contamination and to investigate the corresponding sensitivities. METHODS: Data from 1340 consecutive donor corneas were analysed retrospectively. Logistic regression analysis was used to assess the influence of different factors on the contamination rate of organ-cultured corneas for transplantation...
March 21, 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/28318749/experience-and-outcomes-of-micrografting-for-major-paediatric-burns
#3
H Rode, R Martinez, D Potgieter, S Adams, A D Rogers
BACKGROUND: The deficit of donor sites in major burns over 50% of the total body surface area has necessitated the application of methods besides traditional meshed autografting to achieve definitive skin cover. The Meek micrografting technique was introduced at this hospital in 2011, especially in the absence of a reliable source of deceased donor allograft skin. The purpose of this study was to evaluate this strategy with reference to its technical execution, efficacy and indications in the context of major paediatric burn surgery...
March 15, 2017: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/28303130/new-approaches-on-quantification-of-campylobacter-jejuni-in-poultry-samples-the-use-of-digital-pcr-and-real-time-pcr-against-the-iso-standard-plate-count-method
#4
Bojan Papić, Mateja Pate, Urška Henigman, Urška Zajc, Igor Gruntar, Majda Biasizzo, Matjaž Ocepek, Darja Kušar
Campylobacteriosis is the most frequently reported bacterial food-borne illness in the European Union and contaminated broiler meat is considered the most important source of infection in humans. The aim of the present study was to evaluate real-time PCR (qPCR) and digital PCR (dPCR) for quantification of Campylobacter jejuni in 75 broiler neck-skin samples collected from a poultry slaughterhouse, and to compare them with the ISO 10272-2 standard plate count method. For qPCR standard curve, C. jejuni-negative neck-skin samples were spiked with C...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28289243/use-of-standard-risk-screening-and-assessment-forms-to-prevent-harm-to-older-people-in-australian-hospitals-a-mixed-methods-study
#5
Bernice Redley, Michelle Raggatt
BACKGROUND: Standard risk screening and assessment forms are frequently used in strategies to prevent harm to older people in hospitals. Little is known about good practices for their use. OBJECTIVE: Scope the preventable harms addressed by standard forms used to screen and assess older people and how standard forms are operationalised in hospitals across Victoria, Australia. METHODS: Mixed methods study: (1) cross-sectional audit of the standard risk screening and assessment forms used to assess older people at 11 health services in 2015; (2) nine focus groups with a purposive sample of 69 participants at 9 health services...
March 13, 2017: BMJ Quality & Safety
https://www.readbyqxmd.com/read/28283014/-fungemia-and-septic-arthritis-caused-by-saprochaete-capitata-in-a-patient-with-fanconi-aplastic-anemia-a-case-report
#6
Ömür Mustafa Parkan, Mustafa Altay Atalay, Ayşe Nedret Koç, Çiğdem Pala, Gonca Aydemir, Leylagül Kaynar
Saprochaete capitata (formerly known as Blastoschizomyces capitatus, Trichosporon capitatum, Geotrichum capitatum) is a rare but emerging yeast-like fungus. It is commonly found in environmental sources and can be isolated from skin, gastrointestinal system and respiratory tract of healthy individuals as well. It mainly infects patients with hematological malignancies such as acute myeloid leukemia (AML), especially in the presence of neutropenia; and mortality rates are high in those patients. Although the data about the in vitro antifungal susceptibility are limited, it is being reported that amphotericin B and voriconazole are more effective on S...
January 2017: Mikrobiyoloji Bülteni
https://www.readbyqxmd.com/read/28280714/anti-biofilm-activity-of-a-long-chain-fatty-aldehyde-from-antarctic-pseudoalteromonas-haloplanktis-tac125-against-staphylococcus-epidermidis-biofilm
#7
Angela Casillo, Rosanna Papa, Annarita Ricciardelli, Filomena Sannino, Marcello Ziaco, Marco Tilotta, Laura Selan, Gennaro Marino, Maria M Corsaro, Maria L Tutino, Marco Artini, Ermenegilda Parrilli
Staphylococcus epidermidis is a harmless human skin colonizer responsible for ~20% of orthopedic device-related infections due to its capability to form biofilm. Nowadays there is an interest in the development of anti-biofilm molecules. Marine bacteria represent a still underexploited source of biodiversity able to synthesize a broad range of bioactive compounds, including anti-biofilm molecules. Previous results have demonstrated that the culture supernatant of Antarctic marine bacterium Pseudoalteromonas haloplanktis TAC125 impairs the formation of S...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28270138/hepatocytes-express-the-antimicrobial-peptide-hbd-2-after-multiple-trauma-an-experimental-study-in-human-and-mice
#8
Stefanie Fitschen-Oestern, Matthias Weuster, Sebastian Lippross, Peter Behrendt, Sabine Fuchs, Thomas Pufe, Mersedeh Tohidnezhad, Andreas Bayer, Andreas Seekamp, Deike Varoga, Tim Klüter
BACKGROUND: Human-beta defensins (HBD) belong to the family of acute phase peptides and hold a broad antimicrobial spectrum that includes gram-positive and gram-negative bacteria. HBD are up-regulated after severe injuries but the source of posttraumatic HBD expression has not been focused on before. In the current study we analysed the role of liver tissue in expression of HBD after multiple trauma in human and mice. METHODS: HBD-2 expression has been detected in plasma samples of 32 multiple trauma patients (ISS > 16) over 14 days after trauma by ELISA...
March 7, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28266549/parasitism-perturbs-the-mucosal-microbiome-of-atlantic-salmon
#9
M S Llewellyn, S Leadbeater, C Garcia, F-E Sylvain, M Custodio, K P Ang, F Powell, G R Carvalho, S Creer, J Elliot, N Derome
Interactions between parasite, host and host-associated microbiota are increasingly understood as important determinants of disease progression and morbidity. Salmon lice, including the parasitic copepod Lepeophtheirus salmonis and related species, are perhaps the most important problem facing Atlantic Salmon aquaculture after feed sustainability. Salmon lice parasitize the surface of the fish, feeding off mucus, scales and underlying tissue. Secondary bacterial infections are a major source of associated morbidity...
March 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28223143/comparison-of-photoinactivation-of-t-rubrum-by-new-methylene-blue-nmb-and-indocyanine-green-emundo-%C3%A2
#10
Reza Fekrazad, Arash Poorsattar Bejeh Mir, Mina Kahyaie Aghdam, Vadood Ghasemi Barghi
BACKGROUND: Superficial mycotic skin infections which are predominantly caused by Trichophyton rubrum, poorly responses to conventional therapies. A great amount of attention has focused on to find more effective treatments. The current work is aimed to compare the effectiveness of phoinactivation of Trichophyton rubrum by two relatively new photosensitizers: a phenothiazinium dye(New methylene blue) and Indocyanine green (EmunDo(®)). MATERIALS AND METHODS: A Final inoculum of T...
February 18, 2017: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/28216605/an-overview-of-stress-induced-resveratrol-synthesis-in-grapes-perspectives-for-resveratrol-enriched-grape-products
#11
REVIEW
Mohidul Hasan, Hanhong Bae
Resveratrol is the most important stilbene phytoalexin synthesized naturally or induced in plants, as a part of their defense mechanism. Grapes and their derivative products, including juice and wine, are the most important natural sources of resveratrol, consisting of notably higher amounts than other natural sources like peanuts. Consumption of red wine with its presence of resveratrol explained the "French Paradox". Hence, the demand of resveratrol from grapes is increasing. Moreover, as a natural source of resveratrol, grapes became very important in the nutraceutical industry for their benefits to human health...
February 14, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28212143/staphylococcus-aureus-infections-some-second-thoughts
#12
Willem J B van Wamel
PURPOSE OF REVIEW: Staphylococcus aureus (S. aureus) is well known for its ability to cause life-threatening infections. On the other hand, this bacterium can thrive as a commensal on and in human tissues without causing much problems. How big a threat is S. aureus actually? Furthermore, commensalism is associated with biofilms, where can we find them, and which natural and artificial components activate biofilm formation? RECENT FINDINGS: Recent findings on S. aureus carriage on skin, mucosa, and in wounds indicate the presence of large numbers of S...
February 15, 2017: Current Opinion in Infectious Diseases
https://www.readbyqxmd.com/read/28208874/topical-corticosteroid-misuse-the-scenario-in-patients-attending-a-tertiary-care-hospital-in-new-delhi
#13
Santwana Mahar, Khushbu Mahajan, Swati Agarwal, Hemanta Kumar Kar, Swapan Kumar Bhattacharya
INTRODUCTION: Irrational use of Topical Corticosteroid (TC) is quite common in India due to unrestricted availability and use of TC not only by general public but also by physicians and chemists due to quick relief of symptoms in different dermatological conditions. AIM: The present study was conducted to evaluate and analyse the prevalence of misuse of TC and the causes behind misuse of TC among patients in a dermatology outpatient department in New Delhi. MATERIALS AND METHODS: This was a cross-sectional observational questionnaire based study conducted over a period of 5 months (1(st) June 2015 to 30(th) November 2015)...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28202099/vibrio-alginolyticus-infections-in-the-usa-1988-2012
#14
K M Jacobs Slifka, A E Newton, B E Mahon
Vibrio alginolyticus causes soft tissue and bloodstream infection; little systematically collected clinical and epidemiological information is available. In the USA, V. alginolyticus infections are reported to the Cholera and Other Vibrio Illness Surveillance system. Using data from 1988 to 2012, we categorised infections using specimen source and exposure history, analysed case characteristics, and calculated incidence rates using US Census Bureau data. Most (96%) of the 1331 V. alginolyticus infections were from coastal states...
February 16, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28196956/amino-acid-catabolism-in-staphylococcus-aureus-and-the-function-of-carbon-catabolite-repression
#15
Cortney R Halsey, Shulei Lei, Jacqueline K Wax, Mckenzie K Lehman, Austin S Nuxoll, Laurey Steinke, Marat Sadykov, Robert Powers, Paul D Fey
Staphylococcus aureus must rapidly adapt to a variety of carbon and nitrogen sources during invasion of a host. Within a staphylococcal abscess, preferred carbon sources such as glucose are limiting, suggesting that S. aureus survives through the catabolism of secondary carbon sources. S. aureus encodes pathways to catabolize multiple amino acids, including those that generate pyruvate, 2-oxoglutarate, and oxaloacetate. To assess amino acid catabolism, S. aureus JE2 and mutants were grown in complete defined medium containing 18 amino acids but lacking glucose (CDM)...
February 14, 2017: MBio
https://www.readbyqxmd.com/read/28187042/can-methicillin-resistant-staphylococcus-aureus-silently-travel-from-the-gut-to-the-wound-and-cause-postoperative-infection-modeling-the-trojan-horse-hypothesis
#16
Monika A Krezalek, Sanjiv Hyoju, Alexander Zaborin, Emeka Okafor, Laxmi Chandrasekar, Vitas Bindokas, Kristina Guyton, Christopher P Montgomery, Robert S Daum, Olga Zaborina, Susan Boyle-Vavra, John C Alverdy
OBJECTIVE: To determine whether intestinal colonization with methicillin-resistant Staphylococcus aureus (MRSA) can be the source of surgical site infections (SSIs). BACKGROUND: We hypothesized that gut-derived MRSA may cause SSIs via mechanisms in which circulating immune cells scavenge MRSA from the gut, home to surgical wounds, and cause infection (Trojan Horse Hypothesis). METHODS: MRSA gut colonization was achieved by disrupting the microbiota with antibiotics, imposing a period of starvation and introducing MRSA via gavage...
February 9, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28186134/virulence-inhibitors-from-brazilian-peppertree-block-quorum-sensing-and-abate-dermonecrosis-in-skin-infection-models
#17
Amelia Muhs, James T Lyles, Corey P Parlet, Kate Nelson, Jeffery S Kavanaugh, Alexander R Horswill, Cassandra L Quave
Widespread antibiotic resistance is on the rise and current therapies are becoming increasingly limited in both scope and efficacy. Methicillin-resistant Staphylococcus aureus (MRSA) represents a major contributor to this trend. Quorum sensing controlled virulence factors include secreted toxins responsible for extensive damage to host tissues and evasion of the immune system response; they are major contributors to morbidity and mortality. Investigation of botanical folk medicines for wounds and infections led us to study Schinus terebinthifolia (Brazilian Peppertree) as a potential source of virulence inhibitors...
February 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28185617/mycobacterium-kansasii
#18
James C Johnston, Leslie Chiang, Kevin Elwood
The incidence of Mycobacterium kansasii varies widely over time and by region, but this organism remains one of the most clinically relevant isolated species of nontuberculous mycobacteria. In contrast to other common nontuberculous mycobacteria, M. kansasii is infrequently isolated from natural water sources or soil. The major reservoir appears to be tap water. Infection is likely acquired through the aerosol route, with low infectivity in regions of endemicity. Human-to-human transmission is thought not to occur...
January 2017: Microbiology Spectrum
https://www.readbyqxmd.com/read/28163464/o-to-z-local-skin-flap-the-role-for-managing-depressed-facial-scar-after-resolution-of-odontogenic-source-of-infection
#19
Amin Rahpeyma, Saeedeh Khajehahmadi
No abstract text is available yet for this article.
October 2016: Journal of Cutaneous and Aesthetic Surgery
https://www.readbyqxmd.com/read/28134677/are-there-any-reasons-to-change-our-behavior-in-necrotizing-fasciitis-with-the-advent-of-new-antibiotics
#20
Francesco Menichetti, Simone Giuliano, Simona Fortunato
PURPOSE OF REVIEW: The treatment of necrotizing fasciitis requires a multifaceted approach, consisting of surgical source control with immediate surgical debridement along with life support, clinical monitoring, and antimicrobial therapy. Many drugs are now available for the treatment of this life-threatening infectious disease, and the purpose of this review is to provide the reader with an updated overview of the newest therapeutic options. RECENT FINDINGS: Because most necrotizing soft tissue infections are polymicrobial, broad-spectrum coverage is advisable...
April 2017: Current Opinion in Infectious Diseases
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