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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
#1
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
#2
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
#3
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
#4
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
https://www.readbyqxmd.com/read/28776523/screening-of-health-care-workers-for-latent-tuberculosis-infection-in-a-tertiary-care-hospital
#5
Anand Bimari Janagond, Vithiya Ganesan, G S Vijay Kumar, Arunagiri Ramesh, Prem Anand, M Mariappan
BACKGROUND: Health-care workers (HCWs) are at increased risk of acquiring tuberculosis (TB) than the general population. While national-level data on the burden of TB in general population is available from reliable sources, nationally representative data on latent tuberculosis infection (LTBI) burden in HCWs in the high burden countries is lacking. METHODS: A prospective study was carried out to assess the risk of TB infection among HCWs who directly engage in medical duties...
July 2017: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28768499/simultaneous-primary-invasive-cutaneous-aspergillosis-in-two-preterm-twins-case-report-and-review-of-the-literature
#6
Floriane Gallais, Julie Denis, Olfa Koobar, Laurence Dillenseger, Dominique Astruc, Raoul Herbrecht, Ermanno Candolfi, Valérie Letscher-Bru, Marcela Sabou
BACKGROUND: Primary invasive cutaneous aspergillosis is a rare fungal infection that occurs mostly in immunocompromised patients. Newborns of very low birth weight present a high risk for this type of infection due to an immaturity of the cutaneous barrier and of the immune system. CASE PRESENTATION: We describe here a case of simultaneous invasive cutaneous aspergillosis in two preterm twins. Two male preterm bichorionic biamniotic twins (A & B) were born at a general hospital by spontaneous normal delivery at 24 weeks and 6 days of gestation...
August 2, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28761492/gastrointestinal-helminths-and-ectoparasites-in-the-stray-cats-felidae-felis-catus-of-ahar-municipality-northwestern-iran
#7
Mohammad Yakhchali, Nasser Hajipour, Reza Malekzadeh-Viayeh, Bijan Esmaeilnejad, Taher Nemati-Haravani, Mohammad Fathollahzadeh, Rasool Jafari
BACKGROUND: The stray cats are considered as the sources of emerging humans and domestic livestock pathogens and the zoonoses of public health importance. The present study was aimed to elucidate intestinal helminth infections and infestation with ectoparasites of the stray cats of Ahar City, northwestern Iran. METHODS: Totally, 51 stray cats were randomly trapped from different parts of the city between Mar and Nov 2013. The cats were assessed for ectoparasites by hair brushing, skin scraping, acetate tape preparation and othic swabs...
April 2017: Iranian Journal of Parasitology
https://www.readbyqxmd.com/read/28747952/human-permanent-ectoparasites-recent-advances-on-biology-and-clinical-significance-of-demodex-mites-narrative-review-article
#8
REVIEW
Dorota Litwin, WenChieh Chen, Ewa Dzika, Joanna Korycińska
BACKGROUND: Demodex is a genus of mites living predominantly in mammalian pilosebaceous units. They are commonly detected in the skin of face, with increasing numbers in inflammatory lesions. Causation between Demodex mites and inflammatory diseases, such as rosacea, blepharitis, perioral and seborrhoeic dermatitis or chalazion, is controversially discussed. Clinical observations indicate a primary form of human Demodex infection. The aim of this review was to highlight the biological aspects of Demodex infestation and point out directions for the future research...
January 2017: Iranian Journal of Parasitology
https://www.readbyqxmd.com/read/28737960/optimization-and-interpretation-of-serial-quantiferon-testing-to-measure-acquisition-of-m-tuberculosis-infection
#9
Elisa Nemes, Virginie Rozot, Hennie Geldenhuys, Nicole Bilek, Simbarashe Mabwe, Deborah Abrahams, Lebohang Makhethe, Mzwandile Erasmus, Alana Keyser, Asma Toefy, Yolundi Cloete, Frances Ratangee, Thomas Blauenfeldt, Morten Ruhwald, Gerhard Walzl, Bronwyn Smith, Andre G Loxton, Willem A Hanekom, Jason R Andrews, Maria D Lempicki, Ruth Ellis, Ann M Ginsberg, Mark Hatherill, Thomas J Scriba
RATIONALE: Conversion from a negative to positive QuantiFERON-TB test is indicative of Mycobacterium tuberculosis (M.tb) infection, which predisposes to tuberculosis disease. Interpretation of serial tests is confounded by immunological and technical variability. OBJECTIVES: To improve consistency of serial QuantiFERON-TB testing algorithms and provide a data-driven definition of conversion. METHODS: Sources of QuantiFERON-TB variability were assessed and optimal procedures identified...
July 24, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28735059/too-young-to-be-vaccinated-hospitalizations-caused-by-varicella-among-children-in-the-first-year-of-life
#10
Ewelina Gowin, Jacek Wysocki, Michał Michalak, Danuta Januszkiewicz-Lewandowska
AIM: The aim of this study was to analyse the causes of hospitalization in the course of varicella in children during the first year of life. METHODS: An analysis was performed of the medical documentation of 359 children hospitalized for varicella on the infectious diseases ward at the Children's Hospital in Poznan (Poland) between January 2007 and August 2015. RESULTS: Of the 359 children in the study group, 96 were younger than 1 year old...
July 19, 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/28730647/swimming-pools-and-fungi-an-epidemiology-survey-in-polish-indoor-swimming-facilities
#11
Marek Jankowski, Anna Charemska, Rafał Czajkowski
Environmental conditions for swimming facilities may support fungal growth and also may represent a biological risk for users. However, since previously published studies both cleaning procedures and sanitary regulations are likely to have been improved. The aim of the study was to examine whether attendance to public swimming pools was still a risk factor for fungal infection of the skin in Poland. We investigated the occurrence of mycotic species, in a sample from Polish swimming pools. Detection and identification of isolated species were achieved by cultural and morphological methods...
July 20, 2017: Mycoses
https://www.readbyqxmd.com/read/28698763/wolf-s-panniculitis
#12
Anastasiya Atanasova Chokoeva, Georgi Tchernev
A 28-year-old male patient, presented with a one-week history of pain and itching on the skin of the left upper leg. Erythematous indurated, warm and painful on palpation, subcutaneous plaques and nodules were clinically observed, affecting the skin of the left upper leg, within a recent black-wolf tattoo. The diagnosis of traumatic panniculitis with superposed bacterial infection, provoked by a wolf tattoo was made. The patient underwent 7-days systemic antibiotic treatment regimen and topical application of iodine povidone unguent under occlusion for 7 days...
June 15, 2017: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28698509/almond-skin-extracts-abrogate-hsv-1-replication-by-blocking-virus-binding-to-the-cell
#13
Carlo Bisignano, Giuseppina Mandalari, Antonella Smeriglio, Domenico Trombetta, Maria Musarra Pizzo, Rosamaria Pennisi, Maria Teresa Sciortino
The aim of the present research was to determine the effect of almond skin extracts on herpes simplex virus 1 (HSV-1) replication. Drug-resistant strains of HSV frequently develop following therapeutic treatment. Therefore, the discovery of novel anti-HSV drugs deserves great effort. Here, we tested both natural (NS) and blanched (BS) polyphenols-rich almond skin extracts against HSV-1. HPLC analysis showed that the prevalent compounds in NS and BS extracts contributing to their antioxidant activity were quercetin, epicatechin and catechin...
July 10, 2017: Viruses
https://www.readbyqxmd.com/read/28694086/an-outbreak-of-post-craniotomy-propionibacterium-acnes-infections-at-a-tertiary-hospital-england-2011-a-case-control-study-identifies-dural-implants-as-a-risk-factor-for-infection
#14
Caoimhe McKerr, Nic Coetzee, Obaghe Edeghere, Shakeel Suleman, Neville Q Verlander, Krishna Banavathi
BACKGROUND: In 2011, 15 deep-seated Propionibacterium acnes infections were identified in patients following craniotomies in a hospital in the UK. AIM: To describe the outbreak and report findings from the investigation undertaken in order to identify the source & risk factors and inform control measures. METHODS: Data were obtained from hospital clinical records and included patient and surgical variables. Cases were defined as patients with microbiologically confirmed deep or organ space surgical site infection (SSI) caused by P...
July 7, 2017: Journal of Hospital Infection
https://www.readbyqxmd.com/read/28692913/particle-and-bioaerosol-characteristics-in-a-paediatric-intensive-care-unit
#15
Congrong He, Ian M Mackay, Kay Ramsay, Zhen Liang, Timothy Kidd, Luke D Knibbs, Graham Johnson, Donna McNeale, Rebecca Stockwell, Mark G Coulthard, Debbie A Long, Tara J Williams, Caroline Duchaine, Natalie Smith, Claire Wainwright, Lidia Morawska
The paediatric intensive care unit (PICU) provides care to critically ill neonates, infants and children. These patients are vulnerable and susceptible to the environment surrounding them, yet there is little information available on indoor air quality and factors affecting it within a PICU. To address this gap in knowledge we conducted continuous indoor and outdoor airborne particle concentration measurements over a two-week period at the Royal Children's Hospital PICU in Brisbane, Australia, and we also collected 82 bioaerosol samples to test for the presence of bacterial and viral pathogens...
July 7, 2017: Environment International
https://www.readbyqxmd.com/read/28671898/patterns-and-outcomes-associated-with-timeliness-of-initial-crystalloid-resuscitation-in-a-prospective-sepsis-and-septic-shock-cohort
#16
Daniel E Leisman, Chananya Goldman, Martin E Doerfler, Kevin D Masick, Susan Dries, Eric Hamilton, Mangala Narasimhan, Gulrukh Zaidi, Jason A D'Amore, John K D'Angelo
OBJECTIVES: The objectives of this study were to 1) assess patterns of early crystalloid resuscitation provided to sepsis and septic shock patients at initial presentation and 2) determine the association between time to initial crystalloid resuscitation with hospital mortality, mechanical ventilation, ICU utilization, and length of stay. DESIGN: Consecutive-sample observational cohort. SETTING: Nine tertiary and community hospitals over 1...
June 30, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28665993/knowledge-attitudes-and-practice-on-the-prevention-of-central-line-associated-bloodstream-infections-among-nurses-in-oncological-care-a-cross-sectional-study-in-an-area-of-southern-italy
#17
Maria Rosaria Esposito, Assunta Guillari, Italo Francesco Angelillo
The objectives of the cross-sectional study were to delineate the knowledge, attitudes, and behavior among nurses regarding the prevention of central line-associated bloodstream infections (CLABSIs) and to identify their predisposing factors. A questionnaire was self-administered from September to November 2011 to nurses in oncology and outpatient chemotherapy units in 16 teaching and non-teaching public and private hospitals in the Campania region (Italy). The questionnaire gathered information on demographic and occupational characteristics; knowledge about evidence-based practices for the prevention of CLABSIs; attitudes towards guidelines, the risk of transmitting infections, and hand-washing when using central venous catheter (CVC); practices about catheter site care; and sources of information...
2017: PloS One
https://www.readbyqxmd.com/read/28659908/pterostilbene-a-methoxylated-resveratrol-derivative-efficiently-eradicates-planktonic-biofilm-and-intracellular-mrsa-by-topical-application
#18
Shih-Chun Yang, Chih-Hua Tseng, Pei-Wen Wang, Po-Liang Lu, Yi-Han Weng, Feng-Lin Yen, Jia-You Fang
Pterostilbene is a methoxylated derivative of resveratrol originated from natural sources. We investigated the antibacterial activity of pterostilbene against drug-resistant Staphylococcus aureus and the feasibility of using it to treat cutaneous bacteria. The antimicrobial effect was evaluated using an in vitro culture model and an in vivo mouse model of cutaneous infection. The minimum inhibitory concentration (MIC) assay demonstrated a superior biocidal activity of pterostilbene compared to resveratrol (8~16-fold) against methicillin-resistant S...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28646114/staphylococcus-aureus-strain-newman-photoinactivation-and-cellular-response-to-sunlight-exposure
#19
Jill S McClary, Lauren M Sassoubre, Alexandria B Boehm
Sunlight influences microbial water quality of surface waters. Previous studies have investigated photoinactivation mechanisms and cellular photostress responses of fecal indicator bacteria (FIB), including Escherichia coli and enterococci, but further work is needed to characterize photostress responses of bacterial pathogens. Here we investigate the photoinactivation of Staphylococcus aureus (strain Newman), a pigmented, waterborne pathogen of emerging concern. We measured photodecay using standard culture-based assays and cellular membrane integrity; and investigated photostress response by measuring the relative number of mRNA transcripts of select oxidative stress, DNA repair, and metabolism genes...
June 23, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28636781/discovery-of-two-bombinin-peptides-with-antimicrobial-and-anticancer-activities-from-the-skin-secretion-of-oriental-fire-bellied-toad-bombina-orientalis
#20
Chang Zhou, Zhengming Wang, Xin Peng, Yao Liu, Yangjun Lin, Zhe Zhang, Yuling Qiu, Meihua Jin, Ran Wang, Dexin Kong
Amphibian skin secretions are known to contain numerous peptides with a large array of biological activities. Bombinins are a group of amphibian derived peptides with broad spectrum antimicrobial activities that have been only identified from the ancient toad species, Bombina. In this study, we described the identification and characterization of a novel bombinin precursor which encoded a bombinin like peptide (BLP-7) and a novel bombinin H type peptide (named as Bombinin H-BO) from the skin secretion of Oriental fire-bellied toad, Bombina orientalis...
June 21, 2017: Chemical Biology & Drug Design
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