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https://www.readbyqxmd.com/read/28651081/inactivation-of-pathogenic-microorganisms-in-freshwater-using-hso5-uv-a-led-and-hso5-m-n-uv-a-led-oxidation-processes
#1
Jorge Rodríguez-Chueca, Tatiana Silva, José R Fernandes, Marco S Lucas, Gianluca Li Puma, José A Peres, Ana Sampaio
Freshwater disinfection using photolytic and catalytic activation of peroxymonosulphate (PMS) through PMS/UV-A LED and PMS/M(n+)/UV-A LED [M(n+) = Fe(2+) or Co(2+)] processes was evaluated through the inactivation of three different bacteria: Escherichia coli (Gram-negative), Bacillus mycoides (sporulated Gram-positive), Staphylococcus aureus (non-sporulated Gram-positive), and the fungus Candida albicans. Photolytic and catalytic activation of PMS were effective in the total inactivation of the bacteria using 0...
June 10, 2017: Water Research
https://www.readbyqxmd.com/read/28651026/binding-of-human-plasminogen-and-high-molecular-mass-kininogen-by-cell-surface-exposed-proteins-of-candida-parapsilosis
#2
Justyna Karkowska-Kuleta, Dorota Zajac, Grazyna Bras, Oliwia Bochenska, Maria Rapala-Kozik, Andrzej Kozik
Pathogenic microbes can recruit to their cell surface human proteins that are components of important proteolytic cascades involved in coagulation, fibrinolysis and innate immune response. Once located at the bacterial or fungal surface, such deployed proteins might be utilized by pathogens to facilitate invasion and dissemination within the host organism by interfering with functionality of these systems or by exploiting specific activity of the bound enzymes. Aim of the study presented here was to characterize this phenomenon in Candida parapsilosis (Ashford) Langeron et Talice - an important causative agent of systemic fungal infections (candidiases and candidemias) in humans...
June 24, 2017: Acta Biochimica Polonica
https://www.readbyqxmd.com/read/28650001/brodalumab-the-first-anti-il-17-receptor-agent-for-psoriasis
#3
L Puig
Psoriasis is a chronic immune-mediated inflammatory skin disease in which the alteration of the interleukin-23 (IL-23)/IL-17 cytokine axis appears to be crucial from a pathogenetic perspective. This has been confirmed by the efficacy of monoclonal antibodies blocking IL-17A, such as secukinumab and ixekizumab. Brodalumab is a human anti-IL-17 receptor A (IL-17RA) monoclonal antibody that inhibits the biological activity of IL-17A, IL-17F and other IL-17 isoforms, and has been approved (210 mg s.c. at weeks 0, 1, 2 and every 2 weeks thereafter) for the treatment of psoriasis vulgaris, psoriatic arthritis, pustular psoriasis and psoriatic erythroderma in Japan (Lumicef)...
May 2017: Drugs of Today
https://www.readbyqxmd.com/read/28649561/psd1-effects-on-candida-albicans-planktonic-cells-and-biofilms
#4
Sónia Gonçalves, Patrícia M Silva, Mário R Felício, Luciano N de Medeiros, Eleonora Kurtenbach, Nuno C Santos
Candida albicans is an important human pathogen, causing opportunistic infections. The adhesion of planktonic cells to a substrate is the first step for biofilm development. The antimicrobial peptide (AMP) Psd1 is a defensin isolated from Pisum sativum seeds. We tested the effects of this AMP on C. albicans biofilms and planktonic cells, comparing its activity with amphotericin B and fluconazole. Three C. albicans variants were studied, one of them a mutant deficient in glucosylceramide synthase, conferring resistance to Psd1 antifungal action...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28648496/fruits-as-the-vehicle-of-drug-resistant-pathogenic-yeasts
#5
Hsiu-Jung Lo, Sheng-Hua Tsai, Wen-Li Chu, Yin-Zhi Chen, Zi-Li Zhou, Hong-Fu Chen, Ching-Fu Lee, Yun-Liang Yang
OBJECTIVE: We investigated the diversity and drug susceptibility of pathogenic yeasts on fruit surfaces. METHOD: Fruits were purchased from supermarkets and washed with buffer. The pellets were re-suspended in medium after centrifugation. The cell suspensions were plated onto CHROMagar Candida medium. Yeasts were identified by ribosomal DNA sequencing and their drug susceptibilities were determined by broth microdilution assay. RESULTS: Of 184 isolates, comprised of 55 species, from 22 different types of fruits, 29 species, including Candida famata, Candida fermentati, Candida guilliermondii, Candida intermedia, Candida krusei, Candida orthopsilosis, Candida parapsilosis, Candida pelliculosa, Candida tropicalis, and others have been reported to cause diseases in humans...
June 22, 2017: Journal of Infection
https://www.readbyqxmd.com/read/28648088/idiopathic-esophageal-ulcer-as-an-initial-manifestation-of-hiv-infection
#6
Alicia Martín-Lagos Maldonado, Julio Guilarte López-Mañas, Alberto Benavente Fernández
The esophageal ulcer us a common complication in people affected by the acquired human immunodeficiency virus (HIV), especially in the final stages and in patients who develop an acute retroviral syndrome. Although, it can be caused by various infectious agents, such as species of candida, cytomegalovirus (CMV) and herpes simplex virus (HSV), no aetiological agent is successfully identified in a large proportion of patients and it is classified as idiopathic. We report the case of an idiopathic esophageal ulcer associated with the initial diagnosis of HIV-1...
June 26, 2017: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/28647177/infectious-diseases-in-solid-organ-transplant-recipients-analysis-of-autopsied-cases-in-japan
#7
Yuhko Suzuki, Akira Kenjo, Tomiteru Togano, Natsuo Yamamoto, Hitoshi Ohto, Hikaru Kume
BACKGROUND: With the improvements in immunosuppressive agents and graft survival, infections such as mycoses have become major complications after solid organ transplantation (SOT). METHODS: Our group has continuously updated an epidemiological database of visceral mycoses (VM) among autopsy cases in Japan since 1989. Data on infectious agents and clinical information were complied using similar procedures. RESULTS: Among the all autopsied cases studied, 356 undergone SOT...
June 21, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/28646949/recognition-and-diagnosis-of-invasive-fungal-infections-in-neonates
#8
Joanne L Calley, Adilia Warris
Fungal infections largely caused by Candida species are responsible for a significant disease burden in neonates and invasive candidiasis in hospitalised neonates has high associated morbidity and mortality. Early initiation of antifungal treatment improves outcome but the recognition and diagnosis of systemic fungal infection in this population is difficult due to the non-specific clinical presentation and the high false negative rate of cultures. There is a need for a practical, sensitive and rapid diagnostic test to enhance identification and early treatment...
June 2017: Journal of Infection
https://www.readbyqxmd.com/read/28646915/isolation-speciation-and-antifungal-susceptibility-testing-of-candida-isolates-from-various-clinical-specimens-at-a-tertiary-care-hospital-nepal
#9
Sundar Khadka, Jeevan Bahadur Sherchand, Bharat Mani Pokhrel, Keshab Parajuli, Shyam Kumar Mishra, Sangita Sharma, Niranjan Shah, Hari Prasad Kattel, Subhash Dhital, Sulochana Khatiwada, Narayan Parajuli, Manoj Pradhan, Basista Prasad Rijal
BACKGROUND: Candida species are responsible for various clinical infections ranging from mucocutaneous infection to life threatening invasive diseases along with increased resistance to antifungal drugs has made a serious concern. Resistance to antifungal agents has increased during the last decade. Thus, identification of Candida up to species level and its antifungal susceptibility testing has a paramount significance in the management of Candidal infections. The aim of the study was to speciate Candida species and to determine antifungal susceptibility pattern of Candida species to antifungal agents...
June 24, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28646837/microbiological-purity-assessment-of-cosmetics-used-by-one-and-several-persons-and-cosmetics-after-their-expiry-date
#10
Krzysztof Skowron, Agnieszka Jakubicz, Anna Budzyńska, Agnieszka Kaczmarek, Katarzyna Grudlewska, Adrian Reśliński, Eugenia Gospodarek-Komkowska
Background: Microbiological purity of cosmetics provides safety of users during their use, prevents physicochemical changes of a preparation, infections and diseases of the skin. Objective: The aim of this study was to assess the level of microbiological contamination of cosmetics used by one person and by several people and cosmetics after their expiry date in relations to standards for marketed cosmetics, ensuring safety of their use. Material and Methods: This study was conducted using 55 samples representing 19 types of cosmetics, divided into three groups: used by one person, used by several people and after the expiry date...
2017: Roczniki Państwowego Zakładu Higieny
https://www.readbyqxmd.com/read/28646624/prognostic-relevance-of-oxidative-stress-measurement-in-chronic-lymphocytic-leukemia
#11
Giovanni D'Arena, Candida Vitale, Omar Perbellini, Marta Coscia, Francesco La Rocca, Vitalba Ruggieri, Carlo Visco, Matteo Nicola Dario Di Minno, Idanna Innocenti, Vincenzo Pizza, Silvia Deaglio, Giovanni Di Minno, Aldo Giudice, Gioacchino Calapai, Pellegrino Musto, Luca Laurenti, Eugenio Luigi Iorio
OBJECTIVE: To evaluate the prognostic significance of oxidative stress (OS) and antioxidant defense status measurement in patients with chronic lymphocytic leukemia (CLL). METHOD: d-ROMs test and BAP test were evaluated at diagnosis of 165 patients with CLL and correlated with clinical-biological features and prognosis. RESULTS: An increased oxidative damage (d-ROMs test) and a reduced antioxidant potential (BAP test), were found in CLL patients than normal controls (p <0...
June 24, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/28645176/efficacy-of-histatin5-in-a-murine-model-of-vulvovaginal-candidiasis-caused-by-candida-albicans
#12
Hong Liao, Shanling Liu, He Wang, Hang Su, Zhenjun Liu
Histatin5 (Hst-5) is a member of the histatin family of antimicrobial peptides secreted by human parotid and submandibular glands. With the natural antibacterial activity, it plays an important role in the first-line barrier of oral cave against pathogens, especially for the fungal intrusion. In this study, we explored the utility of Hst-5 in the treatment of vulvovaginal candidiasis, a common condition of women of the childbearing age. we used a synthesized Hst-5 over five consecutive days as the topical treatment in a murine model of vulvovaginal candidiasis...
June 22, 2017: Pathogens and Disease
https://www.readbyqxmd.com/read/28644714/genome-mining-in-silico-validation-and-phase-selection-of-a-novel-aldo-keto-reductase-from-candida-glabratea-for-biotransformation
#13
Souvik Basak, Nanda Gopal Sahoo, Angayar K Pavanasam
Previously, we published cloning, over-expression, characterization and subsequent exploitation of a carbonyl reductase (cr) gene, belonging to general family aldo-keto reductase from Candida glabrata CBS138 to convert keto ester (COBE) to a chiral alcohol (ethyl-4-chloro-3-hydroxybutanoate or CHBE). Exploiting global transcription factor CRP, rDNA and transporter engineering, we have improved batch production of CHBE by trinomial bioengineering. Herein, we present the exploration of cr gene in Candida glabrata CBS138 through genome miningapproach, in silico validation of its activity and selection of its biocatalytic phase...
June 23, 2017: Bioengineered
https://www.readbyqxmd.com/read/28644358/early-empiric-antibiotic-use-is-associated-with-delayed-feeding-tolerance-in-preterm-infants-a-retrospective-analysis
#14
Francisco E Martinez, Walusa A G Ferri, Clea R Leone, Maria Fernanda Branco de Almeida, Ruth Guinsburg, Jucille do Amaral Meneses, Marynéa Silva do Vale, Sergio Tadeu Martins Marba, Werther Brunow de Carvalho, Ligia Maria Suppo de Souza Rugolo, José Maria de Andrade Lopes, Manoel A Ribeiro, Renato S Procianoy, José Luiz Muniz Bandeira Duarte, Maria Cândida Ferrarez Bouzada, Daniela Marques de Lima Mota Ferreira, Navantino Alves Filho, Edna Maria de Albuquerque Diniz, Dulce Maria Toledo Zanardi, Daniela Testoni, Cristina Nunes Dos Santos, Maria Rafaela Conde Gomzález, Paulyne Stadler Venzon, Jaques Belik
The causative factors of neonatal feeding intolerance are poorly understood, but potentially related to clinical practices such as empiric antibiotic usage. The objective of this study was to evaluate whether early empiric antibiotic exposure negatively affects preterm infants' enteral feeding tolerance. Data from infants without risk factors for sepsis, 500 to 1499 g birth weight and 24 to 34 weeks gestational age were analyzed. The primary outcomes were the empiric antibiotic exposure effects on the infants' total parenteral nutrition usage duration and prevalence of necrotizing enterocolitis (NEC)...
July 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/28643723/management-of-a-case-of-candida-albicans-endogenous-endophthalmitis-with-intravitreal-caspofungin
#15
Harshali Manish Yadav, Boben Thomas, Cherian Thampy, Tandava Krishnan Panaknti
We report a case of Candida albicans endogenous endophthalmitis treated with intravitreal caspofungin. The patient was a known case of acute lymphoblastic leukemia on chemotherapy and presented to us with features suggestive of endogenous endophthalmitis. He was treated initially with intravenous (IV) caspofungin and intravitreal amphotericin B. Patients condition worsened after IV caspofungin was replaced by amphotericin B necessitating a core vitrectomy. The patient was given the option of off-label caspofungin intravitreal injection for which the patient consented...
June 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28643461/single-enzyme-biofuel-cells
#16
Chao Ji, Jingwei Hou, Kai Wang, Yun Hau Ng, Vicki Chen
Here, we firstly demonstrate that the intramolecular electron transfer within signle enzyme molecule is an important alternative pathway which can be harnessed to generate electricity. By decoupling the redox reactions within a single type of enzyme (e.g., Trametes versicolor laccase), we harvested electricity efficiently from unconventional fuels including recalcitrant pollutants (e.g. bisphenol-A and hydroquinon) in a single-laccase biofuel cell. The intramolecular electron-harnessing concept was further demonstrated with other enzymes, including power generation during CO2 bioconversion to formate catalyzed by formate dehydrogenase from Candida boidinii...
June 23, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28642757/the-fungal-pathogen-candida-glabrata-does-not-depend-on-surface-ferric-reductases-for-iron-acquisition
#17
Franziska Gerwien, Abu Safyan, Stephanie Wisgott, Sascha Brunke, Lydia Kasper, Bernhard Hube
Iron acquisition is a crucial virulence determinant for many bacteria and fungi, including the opportunistic fungal pathogens Candida albicans and C. glabrata. While the diverse strategies used by C. albicans for obtaining iron from the host are well-described, much less is known about the acquisition of this micronutrient from host sources by C. glabrata - a distant relative of C. albicans with closer evolutionary ties to Saccharomyces cerevisiae, which nonetheless causes severe clinical symptoms in humans...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28642749/rna-seq-reveals-enhanced-sugar-metabolism-in-streptococcus-mutans-co-cultured-with-candida-albicans-within-mixed-species-biofilms
#18
Jinzhi He, Dongyeop Kim, Xuedong Zhou, Sang-Joon Ahn, Robert A Burne, Vincent P Richards, Hyun Koo
Early childhood caries (ECC), which can lead to rampant tooth-decay that is painful and costly to treat, is one of the most prevalent infectious diseases affecting children worldwide. Previous studies support that interactions between Streptococcus mutans and Candida albicans are associated with the pathogenesis of ECC. The presence of Candida enhances S. mutans growth, fitness and accumulation within biofilms in vitro, although the molecular basis for these behaviors is undefined. Using an established co-cultivation biofilm model and RNA-Seq, we investigated how C...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28642550/cytokines-regulate-complement-receptor-immunoglobulin-expression-and-phagocytosis-of-candida-albicans-in-human-macrophages-a-control-point-in-anti-microbial-immunity
#19
Usma Munawara, Annabelle G Small, Alex Quach, Nick N Gorgani, Catherine A Abbott, Antonio Ferrante
Complement Receptor Immunoglobulin (CRIg), selectively expressed by macrophages, plays an important role in innate immunity by promoting phagocytosis of bacteria. Thus modulation of CRIg on macrophages by cytokines can be an important mechanism by which cytokines regulate anti-microbial immunity. The effects of the cytokines, tumor necrosis factor, transforming growth factor-β1, interferon-γ, interleukin (IL)-4, IL-13, IL-10, IL-1β, IL-6, lymphotoxin-α, macrophage-colony stimulating factor (M-CSF) and GM-CSF on CRIg expression were examined in human macrophages...
June 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28642142/epidemiology-and-outcomes-of-bloodstream-infections-in-177-severe-burn-patients-from-an-industrial-disaster-a-multicenter-retrospective-study
#20
Chenqi Tang, Junqiang Li, Beiming Shou, Bohan Pan, Tiansheng Chen, Yongqiang Xiao, Xiaopeng Zheng, Shichu Xiao, Qian Tan, Zhaofan Xia
OBJECTIVES: To determine the characteristics of bloodstream infections (BSIs) and to evaluate the impact of BSIs on mortality in severe burn patients. METHODS: A retrospective observational study was conducted in 20 tertiary hospitals. A total of 185 Patients who experienced a massive dust explosion in eastern China were included. RESULTS: After exclusion, 177 patients were analyzed. The median total body surface area (TBSA) burned was 95% (interquartile range [IQR], 85%-98%)...
June 19, 2017: Clinical Microbiology and Infection
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