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https://www.readbyqxmd.com/read/29150218/keratitis-secondary-to-fusarium-spp-in-spain-2012-2014
#1
M A Mosquera Gordillo, N Barón Cano, A Garralda Luquin, C López Gutiérrez, E Mengual Verdú, G Trujillo Cabrera, J M Garrido Fierro, J Lamarca Mateu, J C Sánchez España, P Marticorena Álvarez, R Feijoó Lera, S Martín Nalda, T Marti Huguet, V Gacía Conca
OBJECTIVE: To describe the clinical-epidemiological characteristics of a case series of fungal keratitis associated with Fusarium spp.., in Spain during the years 2012 to 2014. METHODS: A retrospective study of a case series was conducted on a systematic random sample of 10% of patients identified in Health Centres of provincial capitals (n=250). The centres were asked whether they had been presented with cases of Fusarium spp. keratitis characterised by microbiological methods...
November 14, 2017: Archivos de la Sociedad Española de Oftalmología
https://www.readbyqxmd.com/read/29150029/-fungal-keratitis
#2
REVIEW
T Bourcier, A Sauer, A Dory, J Denis, M Sabou
Fungal keratitis, or keratomycoses, are corneal infections which must be considered in cases of corneal trauma, prior corneal surgery, chronic ocular surface disease, topical corticosteroids or contact lens wear. Filamentous fungi or yeasts may be involved. Presenting clinical features such as corneal infiltrates with feathery edges and/or raised surface, intact epithelium with deep stromal involvement, satellite lesions, endothelial plaques, lack of improvement with antibiotics and worsening with steroids are suggestive of fungal keratitis...
November 14, 2017: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/29149117/-influence-of-titanium-dioxide-activated-under-visible-light-on-survival-of-mold-fungi
#3
Daria Kądziołka, Paulina Rokicka, Agata Markowska-Szczupak, Antoni W Morawski
BACKGROUND: In public and residential buildings, fungi are usually found in the dust or growing on building materials medium such. It has been known that a number of their spores may contaminate the indoor environment and deteriorate air quality in accommodation spaces. Previously designed air cleaning systems do not guarantee a complete removal of agents harmful to humans and animals. Therefore, there is a great need to develop a new solution to remove molds from indoor air. In recent years, photocatalysis based on titanium dioxide (TiO<sub>2</sub>) has been proposed as an effective method for air pollutants removal...
November 17, 2017: Medycyna Pracy
https://www.readbyqxmd.com/read/29142411/the-effect-of-polyherbal-medicines-used-for-the-treatment-of-tuberculosis-on-other-opportunistic-organisms-of-humans-infected-with-tuberculosis
#4
Elizabeth Bosede Famewo, Anna Maria Clarke, Anthony Jide Afolayan
Background: In many immunocompromised patients, opportunistic bacterial and fungal infections are common. Polyherbal medicines examined in this study are used by the indigenous people of South Africa for the treatment of tuberculosis (TB) and other opportunistic infections associated with TB. Objective: To evaluate the antibacterial and antifungal activity of nine polyherbal remedies against four Gram-positive and Gram-negative bacteria respectively and three fungi...
October 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/29141535/sln-and-nlc-encapsulating-antifungal-agents-skin-drug-delivery-and-their-unexplored-potential-for-treating-onychomycosis
#5
Tais Gratieri, Anna Paula Krawczyk-Santos, Priscila Bianca Rodrigues da Rocha, Marcilio Cunha-Filho, Guilherme Martins Gelfuso, Ricardo Neves Marreto, Stephania Fleury Taveira
BACKGROUND: Lipid nanoparticles have been extensively studied for drug delivery of antifungal drugs, especially for dermatophytosis treatments. They can accumulate in skin appendages and release drugs in a controlled manner and also increase skin moisture, due to the formation of an occlusive film. Since moisture heavily influences nail and skin permeability, these systems seem to pose great potential for antifungal drug delivery. METHODS: We therefore compare skin and nail physiopathological structure and discuss the potential use of lipid nanoparticles in managing skin and nail mycoses, highlighting their unexplored use in onychomycosis...
November 14, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/29140934/response-of-symptomatic-persistent-chronic-disseminated-candidiasis-to-corticosteroid-therapy-in-immunosuppressed-pediatric-patients-case-study-and-review-of-the-literature
#6
Vered Shkalim-Zemer, Itzhak Levi, Salvador Fischer, Hannah Tamary, Joanne Yakobovich, Gali Avrahami, Gil Gilad, Sara Elitzur, Isaac Yaniv, Ronit Elhasid, Michal Manistersky, Itamar Shalit
BACKGROUND: Chronic disseminated candidiasis (CDC) is a severe invasive fungal infection principally observed during neutrophil recovery in patients with acute leukemia treated with intensive chemotherapy. Its pathophysiology remains unclear. We describe the management of six children with symptomatic CDC who did not respond to antifungal therapy. METHODS: The databases of the hematology-oncology departments of two tertiary pediatric medical centers were searched for all patients diagnosed with CDC from 2003 to 2015 who responded to corticosteroids after failing antifungal therapy...
November 14, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/29139202/lego-inspired-drug-design-unveiling-of-the-novel-class-of-benzo-d-thiazole-containing-a-3-4-dihydroxyphenyl-moiety-as-plasma-membrane-h-atpase-inhibitors
#7
Truong Thanh Tung, Dao Trong Tuan, Marta Grifell Junyent, Michael Palmgren, Thomas Günther-Pomorski, Anja Thoe Fuglsang, Søren Brøgger Christensen, John Nielsen
The fungal plasma membrane H+-ATPase (Pma1p) is a potential target for the discovery of new antifungal agents. Surprisingly, no structure-activity relationship studies for small molecules targeting Pma1p have been reported. Herein, we disclose a LEGO-inspired fragment assembly strategy for design, synthesis and discovery of benzo[d]thiazoles containing a 3,4-dihydroxyphenyl moiety as potential Pma1p inhibitors. A series of 2-(benzo[d]thiazol-2-ylthio)-1-(3,4-dihydroxyphenyl)ethanones was found to inhibit Pma1p with the most potent IC50 of 8 µM in an in vitro plasma membrane H+-ATPase assay...
November 15, 2017: ChemMedChem
https://www.readbyqxmd.com/read/29138944/design-synthesis-conformational-and-molecular-docking-study-of-some-novel-acyl-hydrazone-based-molecular-hybrids-as-antimalarial-and-antimicrobial-agents
#8
Parvin Kumar, Kulbir Kadyan, Meenakshi Duhan, Jayant Sindhu, Vineeta Singh, Baljeet Singh Saharan
BACKGROUND: Acyl hydrazones are an important class of heterocyclic compounds promising pharmacological characteristics. Malaria is a life-threatening mosquito-borne blood disease caused by a plasmodium parasite. In some places, malaria can be treated and controlled with early diagnosis. However, some countries lack the resources to do this effectively. RESULTS: The present work involves the design and synthesis of some novel acyl hydrazone based molecular hybrids of 1,4-dihydropyridine and pyrazole (5a-g)...
November 14, 2017: Chemistry Central Journal
https://www.readbyqxmd.com/read/29138624/entomopathogenic-fungi-as-dual-control-agents-against-both-the-pest-myzus-persicae-and-phytopathogen-botrytis-cinerea
#9
Hwi-Geon Yun, Dong-Jun Kim, Won-Seok Gwak, Tae-Young Shin, Soo-Dong Woo
The green peach aphid (Myzus persicae), a plant pest, and gray mold disease, caused by Botrytis cinerea, affect vegetables and fruit crops all over the world. To control this aphid and mold, farmers typically rely on the use of chemical insecticides or fungicides. However, intensive use of these chemicals over many years has led to the development of resistance. To overcome this problem, there is a need to develop alternative control methods to suppress populations of this plant pest and pathogen. Recently, potential roles have been demonstrated for entomopathogenic fungi in endophytism, phytopathogen antagonism, plant growth promotion, and rhizosphere colonization...
September 2017: Mycobiology
https://www.readbyqxmd.com/read/29138104/novel-mixed-vesicles-containing-lactobacilli-biosurfactant-for-vaginal-delivery-of-an-anti-candida-agent
#10
Angela Abruzzo, Barbara Giordani, Carola Parolin, Beatrice Vitali, Michele Protti, Laura Mercolini, Martina Cappelletti, Stefano Fedi, Federica Bigucci, Teresa Cerchiara, Barbara Luppi
The purpose of this work was to prepare and characterize an innovative formulation for vaginal delivery of econazole nitrate, commonly used for the treatment of Candida infections. A novel biosurfactant isolated from a vaginal Lactobacillus strain was used to prepare phosphatidylcholine based mixed vesicles. Biosurfactant was produced by Lactobacillus gasseri BC9, isolated from the vagina of a healthy premenopausal woman, and was chemically characterized by FT-IR and ESI-MS. Mixed vesicles, obtained through film rehydration and extrusion method, were characterized in terms of size, zeta potential, encapsulation efficiency, mucoadhesion properties and econazole release...
November 11, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29137937/design-synthesis-and-evaluation-of-3-arylidene-azetidin-2-ones-as-potential-antifungal-agents-against-alternaria-solani-sorauer
#11
Wang Delong, Wu Yongling, Wang Lanying, Feng Juntao, Zhang Xing
A new concise and facile method was explored to synthesize a collection of new 3-arylidene azetidin-2-ones, which could be regarded as the derivatives of the hybrid scaffold of bioactive natural cinnamamide and heterocycle azetidi-2-one. The structures of the synthesized compounds were characterized by (1)H, (13)C NMR, and MS; and their antifungal activity were evaluated against Alternaria solani Sorauer. These antifungal data were subjected to a quantitative structure-activity relationship (QSAR) analysis using Codessa software on the basis of the results from B3LYP/6-31G(d,p) quantum calculations...
November 4, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/29137648/lesr-is-a-novel-upstream-regulator-that-controls-downstream-clp-expression-to-modulate-antibiotic-hsaf-biosynthesis-and-cell-aggregation-in-lysobacter-enzymogenes-oh11
#12
Huiyong Xu, Ruping Wang, Yangyang Zhao, Zheng Qing Fu, Guoliang Qian, Fengquan Liu
BACKGROUND: Heat-stable antifungal factor (HSAF) is a polycyclic tetramate macrolactam secondary metabolite that exhibits broad-spectrum inhibitory activities against filamentous fungal pathogens. The native yield of this chemical is low. It is also a great challenge to synthesize HSAF artificially, due to its complex structure. Understanding the regulatory mechanism underlying HSAF biosynthesis could provide genetic basis for engineering high HSAF-producing strain. The transcription factor Clp is a global regulator that controls bacterial pathogenicity and the expression of one hundred related genes in the phytopathogenic bacterium Xanthomonas campestris pv...
November 14, 2017: Microbial Cell Factories
https://www.readbyqxmd.com/read/29136060/clinical-trial-designs-for-topical-antifungal-treatments-of-onychomycosis-and-implications-on-clinical-practice
#13
Phoebe Rich, Tracey C Vlahovic, Warren S Joseph, Lee T Zane, Steve B Hall, Nicole Gellings Lowe, Chris G Adigun
There currently are 3 topical agents approved by the US Food and Drug Administration (FDA) to treat onychomycosis: tavaborole, efinaconazole, and ciclopirox. The phase 3 clinical trial designs for these treatments and their notable differences make it difficult for clinicians to interpret the data into clinical practice. For example, the primary end point predominantly used to assess efficacy in all the trials is complete cure, defined as no involvement of the nail plus mycologic cure; also, a notable number of patients fail to achieve a complete cure despite clear improvement in the nail...
October 2017: Cutis; Cutaneous Medicine for the Practitioner
https://www.readbyqxmd.com/read/29135059/effect-of-incorporation-of-antifungal-agents-on-the-ultimate-tensile-strength-of-temporary-soft-denture-liners
#14
Karin Hermana Neppelenbroek, Jozely Francisca Mello Lima, Juliana Hotta, Lucas Lulo Galitesi, Ana Lucia Pompéia Fraga Almeida, Vanessa Migliorini Urban
PURPOSE: To investigate the ultimate tensile strength of temporary soft denture liners modified by minimum inhibitory concentrations (MICs) of antifungal agents for Candida albicans biofilm (SC5314) determined in previous microbiological research. MATERIALS AND METHODS: Dumbbell-shaped specimens (n = 7) with a central cross-sectional area of 6 × 3 × 33 mm were produced by Softone and Trusoft, without (control) or with incorporation of drugs in powder form at MICs for C...
November 14, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/29134932/outbreak-of-pichia-kudriavzevii-fungaemia-in-a-neonatal-intensive-care-unit
#15
T Nagarathnamma, Sneha K Chunchanur, Shivaprakash M Rudramurthy, K R Vineetha, Karthik Ramamurthy, Jillwin Joseph, R Ambica
PURPOSE: Fungaemia is associated with substantial morbidity and mortality in neonates admitted to neonatal intensive care units (NICUs). We report an outbreak of fungaemia in a NICU due to rare yeast, Pichia kudriavzevii (a teleomorph of Candida krusei). To the best of our knowledge, this is the first report of neonatal sepsis due to P. kudriavzevii. METHODOLOGY: Between August and September 2014, blood cultures from nine neonates diagnosed with late-onset sepsis in the NICU yielded yeast-like organisms...
November 14, 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/29134389/exploration-antifungal-and-antiaflatoxigenic-activity-of-halophilic-bacteria-communities-from-saline-soils-of-howze-soltan-playa-in-iran
#16
Samaneh Jafari, Seyed-Soheil Aghaei, Hossein Afifi-Sabet, Masoomeh Shams-Ghahfarokhi, Zahra Jahanshiri, Mohammadhassan Gholami-Shabani, Seyedahmad Shafiei-Darabi, Mehdi Razzaghi-Abyaneh
In the present study, halophilic bacteria communities were explored in saline soils of Howze-Soltan playa in Iran with special attention to their biological activity against an aflatoxigenic Aspergillus parasiticus NRRL 2999. Halophilic bacteria were isolated from a total of 20 saline soils using specific culture media and identified by 16S rRNA sequencing in neighbor-joining tree analysis. Antifungal and antiaflatoxigenic activities of the bacteria were screened by a nor-mutant A. parasiticus NRRL 2999 using visual agar plate assay and confirmed by high-performance liquid chromatography...
November 13, 2017: Extremophiles: Life Under Extreme Conditions
https://www.readbyqxmd.com/read/29134332/type-iv-pilus-biogenesis-genes-and-their-roles-in-biofilm-formation-in-the-biological-control-agent-lysobacter-enzymogenes-oh11
#17
Jing Xia, Jiaojiao Chen, Yuan Chen, Guoliang Qian, Fengquan Liu
Type IV pilus (T4P) is widespread in bacteria, yet its biogenesis mechanism and functionality is only partially elucidated in a limited number of bacterial species. Here, by using strain OH11 as the model organism, we reported the identification of 26 T4P structural or functional component (SFC) proteins in the Gram-negative Lysobacter enzymogenes, which is a biocontrol agent potentially exploiting T4P-mediated twitching motility for antifungal activity. Twenty such SFC coding genes were individually knocked-out in-frame to create a T4P SFC deletion library...
November 13, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/29133552/cd101-a-novel-echinocandin-possesses-potent-anti-biofilm-activity-against-early-and-mature-candida-albicans-biofilms
#18
Jyotsna Chandra, Mahmoud A Ghannoum
Currently available echinocandins are generally effective against Candida biofilms, but recent emergence of resistance has underscored the importance of developing new antifungal agents that are effective against biofilms. CD101 is a long-acting, novel echinocandin with distinctive pharmacokinetic properties and improved stability and safety relative to other drugs in the same class. CD101 is currently being evaluated as a once-weekly IV infusion for the treatment of candidemia and invasive candidiasis. In this study, we determined: (1) the effect of CD101 against early and mature phase biofilms formed by C...
November 13, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29133044/molecular-docking-design-synthesis-and-antifungal-activity-study-of-novel-triazole-derivatives
#19
Junqi Wu, Tingjunhong Ni, Xiaoyun Chai, Ting Wang, Hongrui Wang, Jindong Chen, Yongsheng Jin, Dazhi Zhang, Shichong Yu, Yuanying Jiang
The incidence of life-threatening fungal infections has dramatically increased for decades. In order to develop novel antifungal agents, two series of (2R,3R)-1-(1H-1,2,4-triazol-1-yl)-2-(2,4-difluorophenyl)-3-(N-substitutied)-2-butanols (3a-o, 5a-f, 8a-u), which were analogues of voriconazole, were designed, synthesized and characterized by (1)H NMR, (13)C NMR and HRMS. The MIC80 values showed that the target compounds 3a-o indicated better activities than fluconazole on three important fungal pathogens except for 3i...
November 10, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29132935/risk-factors-and-outcomes-of-candidemia-caused-by-candida-parapsilosis-complex-in-a-medical-center-in-northern-taiwan
#20
Yen-Mu Wu, Po-Yen Huang, Jang-Jih Lu, Shian-Sen Shie, Jung-Jr Ye, Ting-Shu Wu, Ching-Tai Huang
To investigate the risk factors and outcomes associated with Candida parapsilosis candidemia, a retrospective study was conducted at a tertiary medical center in northern Taiwan. Patients with C. parapsilosis candidemia and corresponding controls with C. albicans candidemia were chosen and their demographics, comorbidities, risk factors, and clinical outcomes were reviewed. Antifungal susceptibility tests were performed using the Sensititre YeastOne colorimetric system. Matrix-assisted laser desorption ionization-time of flight mass spectrometry was used to classify the genomic species...
October 6, 2017: Diagnostic Microbiology and Infectious Disease
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