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https://www.readbyqxmd.com/read/28214733/flexible-camphor-diamond-like-carbon-coating-on-polyurethane-to-prevent-candida-albicans-biofilm-growth
#1
Thaisa B Santos, Angela A Vieira, Luciana O Paula, Everton D Santos, Polyana A Radi, Sônia Khouri, Homero S Maciel, Rodrigo S Pessoa, Lucia Vieira
Camphor was incorporated in diamond-like carbon (DLC) films to prevent the Candida albicans yeasts fouling on polyurethane substrates, which is a material commonly used for catheter manufacturing. The camphor:DLC and DLC film for this investigation was produced by plasma enhanced chemical vapor deposition (PECVD), using an apparatus based on the flash evaporation of organic liquid (hexane) containing diluted camphor for camphor:DLC and hexane/methane, mixture for DLC films. The film was deposited at a low temperature of less than 25°C...
February 16, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28214644/plant-growth-promoting-candida-sp-avgb4-with-capability-of-4-nitroaniline-biodegradation-under-drought-stress
#2
Sivagnanam Silambarasan, Alisa S Vangnai
This study focused on rhizospheric yeast capable of degrading a priority pollutant, 4-nitroaniline (4-NA), under drought stress. Candida sp. AVGB4 (AVGB4) inhabiting in soil was isolated and characterized with plant-growth promoting (PGP) traits. 4-NA-dependent growth kinetic and biodegradation kinetics were analyzed and revealed 4-NA complete degradation and tolerance property. AVGB4 proliferation, PGP activities, and 4-NA degradation activity were well maintained under drought stress induced by PEG-6000 incorporation, and could be strengthened in the presence of succinate, an organic compound generally found in plant root exudates...
February 16, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28214273/candidaemia-due-to-candida-parapsilosis-species-complex-at-a-hospital-in-brazil-clinical-characteristics-and-antifungal-susceptibility-profile
#3
Débora de Souza Olartechea de Alencar, Rosianne Assis de Sousa Tsujisaki, Fernanda Luiza Espinosa Spositto, Maína de Oliveira Nunes, Adriana Araújo de Almeida, Marilena Dos Anjos Martins, Marcia de Souza Carvalho Melhem, Marilene Rodrigues Chang
BACKGROUND: Recent decades have seen a global emergence of candidaemia caused by non-Candida albicans Candida species, particularly the Candida parapsilosis complex. AIMS: To evaluate the clinical features and antifungal susceptibility profiles of isolates belonging to the C. parapsilosis species complex in patients with candidaemia in a midwestern Brazilian tertiary-care teaching hospital. METHODS: Yeast identification was performed using an automated Vitek 2 Compact system...
February 14, 2017: Revista Iberoamericana de Micología
https://www.readbyqxmd.com/read/28214143/retrospective-study-of-candida-sp-contaminations-of-endoscopes-at-the-university-hospital-of-tlemcen-algeria
#4
REVIEW
I Hassaine-Lahfa, Z Boucherit-Otmani, L Sari-Belkherroubi, K Boucherit
BACKGROUND: Improper cleaning and disinfection of endoscopes has been responsible for multiple nosocomial outbreaks and sometimes serious life-threatening infections. OBJECTIVE: The aim of our study is, at first, to identify Candida species responsible for the contamination of endoscopes, and to determine the minimal inhibitory concentrations of planktonic (MIC) and sessile cells (SMIC) of amphotericin B (AmB) against our isolated strains. MATERIALS AND METHODS: The present study was performed on four endoscopes in the department of gastroenterology at the University Hospital of Tlemcen (Algeria)...
February 14, 2017: Journal de Mycologie Médicale
https://www.readbyqxmd.com/read/28214078/the-optimize-heart-failure-care-program-initial-lessons-from-global-implementation
#5
Martin R Cowie, Yuri M Lopatin, Clara Saldarriaga, Cândida Fonseca, David Sim, Jose Antonio Magaña, Denilson Albuquerque, Marcelo Trivi, Gustavo Moncada, Baldomero A González Castillo, Mario Osvaldo Speranza Sánchez, Edward Chung
Hospitalization for heart failure (HF) places a major burden on healthcare services worldwide, and is a strong predictor of increased mortality especially in the first three months after discharge. Though undesirable, hospitalization is an opportunity to optimize HF therapy and advise clinicians and patients about the importance of continued adherence to HF medication and regular monitoring. The Optimize Heart Failure Care Program (www.optimize-hf.com), which has been implemented in 45 countries, is designed to improve outcomes following HF hospitalization through inexpensive initiatives to improve prescription of appropriate drug therapies, patient education and engagement, and post-discharge planning...
February 12, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28213809/the-correlation-between-biofilm-production-and-catheter-related-blood-stream-infections-sustained-by-candida-a-case-control-study
#6
Grazia Brunetti, Valeria Visconti, Maria Cristina Ghezzi, Alessandra Giordano, Giammarco Raponi
Biofilm forming capacity of yeasts colonizing the intravenous devices is considered a key factor involved in the pathogenesis of Candida catheter-related bloodstream infections (CCRBSI). The biofilm production of strains of Candida spp. isolated both from the CVC and from the blood of patients with CCRBSI was compared to that of strains isolated from patients not having CCRBSI. Results, expressed in terms of Biofilm Index (BI), revealed that biofilm-producing strains were isolated in the CCRBSI group with a frequency significantly higher than in the non-CCRBSI group (χ(2) = 4...
February 18, 2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28213053/nerol-triggers-mitochondrial-dysfunction-and-disruption-via-elevation-of-ca-2-and-ros-in-candida-albicans
#7
Jun Tian, Zhaoqun Lu, Yanzhen Wang, Man Zhang, Xueyan Wang, Xudong Tang, Xue Peng, Hong Zeng
The antifungal activity of Nerol (NEL) against Candida albicans, a pathogenic fungus, has a minimum inhibitory concentration (MIC) of 4.4mM that causes noteworthy candidacidal activity through an apoptosis-like mechanism. Calcium (Ca(2+)) levels and reactive oxygen species (ROS) production, which are the major causes of apoptosis, were determined in C. albicans cells treated with NEL and were found to increase, which related to mitochondrial dysfunction and disruption. A series of characteristic changes of apoptosis caused by NEL, including mitochondrial membrane depolarization, cytochrome c (cyt c) release, and metacaspase activation were examined using a flow cytometer and Western blot...
February 14, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28211844/a-tool-named-iris-for-versatile-high-throughput-phenotyping-in-microorganisms
#8
George Kritikos, Manuel Banzhaf, Lucia Herrera-Dominguez, Alexandra Koumoutsi, Morgane Wartel, Matylda Zietek, Athanasios Typas
Advances in our ability to systematically introduce and track controlled genetic variance in microorganisms have, in the past decade, fuelled high-throughput reverse genetics approaches. When coupled to quantitative readouts, such approaches are extremely powerful at elucidating gene function and providing insights into the underlying pathways and the overall cellular network organization. Yet, until now, all efforts to quantify microbial macroscopic phenotypes have been restricted to monitoring growth in a small number of model microorganisms...
February 17, 2017: Nature Microbiology
https://www.readbyqxmd.com/read/28211298/kinneretia-thg-sqi4-mediated-biosynthesis-of-silver-nanoparticles-and-its-antimicrobial-efficacy
#9
Hina Singh, Juan Du, Tae-Hoo Yi
Simple, facile, effective approach for the biosynthesis of silver nanoparticles using Kinneretia species and its antimicrobial activity against human pathogens has been demonstrated in this study. Kinneretia THG-SQI4 has been isolated from soil sample collected from Shangqui, China. The synthesized nanoparticles were characterized by ultraviolet-visible spectrophotometry (UV-vis), field emission transmission electron microscopy (FE-TEM), energy dispersive X-ray spectroscopy (EDX), elemental mapping, selected area diffraction pattern, and X-ray diffraction (XRD)...
May 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/28210636/hemophagocytic-lymphohistiocytosis-in-a-patient-with-hodgkin-lymphoma-and-concurrent-ebv-cmv-and-candida-infections
#10
Moaath Mustafa Ali, Ana Lucia Ruano Mendez, Hetty E Carraway
Hemophagocytic lymphohistiocytosis (HLH) is a syndrome characterized by immune activation and subsequent widespread organ damage. Patients affected by HLH commonly develop fever, cytopenias, liver damage, neurologic manifestations, and hypercytokinemia. In this case, we describe a 60-year-old male who presented with HLH and concurrent Epstein-Barr virus, cytomegalovirus, and Candida infections and was subsequently diagnosed with a Hodgkin lymphoma. This case highlights the importance of considering a cancer diagnosis in the differential diagnosis of patients presenting with HLH...
January 2017: Journal of Investigative Medicine High Impact Case Reports
https://www.readbyqxmd.com/read/28208714/biodegradation-mechanisms-of-patulin-in-candida-guilliermondii-an-itraq-based-proteomic-analysis
#11
Yong Chen, Huai-Min Peng, Xiao Wang, Bo-Qiang Li, Man-Yuan Long, Shi-Ping Tian
Patulin, a potent mycotoxin, contaminates fruits and derived products worldwide, and is a serious health concern. Several yeast strains have shown the ability to effectively degrade patulin. However, the mechanisms of its biodegradation still remain unclear at this time. In the present study, biodegradation and involved mechanisms of patulin by an antagonistic yeast Candida guilliermondii were investigated. The results indicated that C. guilliermondii was capable of not only multiplying to a high population in medium containing patulin, but also effectively reducing patulin content in culture medium...
February 8, 2017: Toxins
https://www.readbyqxmd.com/read/28207234/potassium-iodide-potentiates-broad-spectrum-antimicrobial-photodynamic-inactivation-using-photofrin
#12
Liyi Huang, Grzegorz Szewczyk, Tadeusz Sarna, Michael R Hamblin
It is known that non-cationic porphyrins such as Photofrin (PF) are effective in mediating antimicrobial photodynamic inactivation (aPDI) of Gram-positive bacteria or fungi. However the aPDI activity of PF against Gram-negative bacteria is accepted to be extremely low. Here we report that the non-toxic inorganic salt, potassium iodide (KI) at a concentration of 100mM when added to microbial cells (10(8)/mL) + PF (10µM hematoporphyrin equivalent) + 415nm light (10J/cm2) can eradicate (>6 logs killing) five different Gram-negative species (Escherichia coli, Pseudomonas aeruginosa, Klebsiella pneumoniae, Proteus mirabilis, and Acinetobacter baumannii), while no killing was obtained without KI...
February 16, 2017: ACS Infectious Diseases
https://www.readbyqxmd.com/read/28205003/antifungal-efficacy-of-an-intravenous-formulation-containing-monomeric-amphotericin-b-5-fluorocytosine-and-saline-for-sodium-supplementation
#13
Celeste Alvarez, David R Andes, Jeong Yeon Kang, Carmen Krug, Glen S Kwon
PURPOSE: Amphotericin B (AmB) and 5-fluorocytosine (5-FC) exhibit additive to synergistic activity against systemic mycoses. Incompatibility of prescribed formulations precludes concomitant IV administration, a route with distinct advantages. Previously, we used PEG-DSPE micelles to produce a reformulation of Fungizone (AmB-SD), AmB solubilized by sodium deoxycholate, called mAmB-90. Herein, we describe a second reformulation that facilitates co-delivery of mAmB-90 and 5-FC, and evaluate the effect of PEG-DSPE micelles on the combination's activity against Candida albicans...
February 15, 2017: Pharmaceutical Research
https://www.readbyqxmd.com/read/28204651/yeasts-from-scarlet-ibises-eudocimus-ruber-a-focus-on-monitoring-the-antifungal-susceptibility-of-candida-famata-and-closely-related-species
#14
Raimunda Sâmia Nogueira Brilhante, Aline Lobão da Silva, Frederico Ozanan Barros Monteiro, Glaucia Morgana de Melo Guedes, Jamille Alencar Sales, Jonathas Sales de Oliveira, José Erisvaldo Maia Junior, Stefânia Araújo Miranda, José Júlio Costa Sidrim, Lucas Pereira de Alencar, Débora Souza Collares Maia Castelo-Branco, Rossana de Aguiar Cordeiro, Waldemiro de Aquino Pereira Neto, Marcos Fábio Gadelha Rocha
No abstract text is available yet for this article.
February 16, 2017: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
https://www.readbyqxmd.com/read/28204594/candida-parapsilosis-in-domestic-laundry-machines
#15
Aylin Döğen, Hafize Sav, Serpil Gonca, Engin Kaplan, Macit Ilkit, Monika Novak Babič, Nina Gunde-Cimerman, G Sybren de Hoog
No abstract text is available yet for this article.
February 16, 2017: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
https://www.readbyqxmd.com/read/28204571/in-vitro-combination-therapy-with-isavuconazole-against-candida-spp
#16
Aspasia Katragkou, Matthew McCarthy, Joseph Meletiadis, Kaiser Hussain, Patriss W Moradi, Gittel E Strauss, Kyaw L Myint, Myo H Zaw, Laura L Kovanda, Ruta Petraitiene, Emmanuel Roilides, Thomas J Walsh, Vidmantas Petraitis
No abstract text is available yet for this article.
February 16, 2017: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
https://www.readbyqxmd.com/read/28204565/effect-of-peritoneal-dialysis-fluids-on-activity-of-echinocandins-against-candida-spp-biofilm
#17
Selma Tobudic, Nicole Harrison, Christina Forstner, Manuel Kussman, Heinz Burgmann
No abstract text is available yet for this article.
February 16, 2017: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
https://www.readbyqxmd.com/read/28204557/isolates-of-the-emerging-pathogen-candida-auris-present-in-the-uk-have-several-geographic-origins
#18
Andrew M Borman, Adrien Szekely, Elizabeth M Johnson
No abstract text is available yet for this article.
February 16, 2017: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
https://www.readbyqxmd.com/read/28203658/ionic-conductivity-and-mixed-ion-effect-in-mixed-alkali-metaphosphate-glasses
#19
Jefferson Esquina Tsuchida, Fabio Aparecido Ferri, Paulo Sergio Pizani, Ana Candida Martins Rodrigues, Swarup Kundu, José Fabián Schneider, Edgar Dutra Zanotto
In this work, mixed alkali metaphosphate glasses based on K-Na, Rb-Na, Rb-Li, Cs-Na and Cs-Li combinations were studied by differential scanning calorimetry (DSC), complex impedance spectroscopy, and Raman spectroscopy. DSC analyses show that both the glass transition (Tg) and melting temperatures (Tm) exhibit a clear mixed-ion effect. The ionic conductivity shows a strong mixed-ion effect and decreases by more than six orders of magnitude at room temperature for Rb-Na or Cs-Li alkali pairs. This study confirms that the mixed-ion effect may be explained as a natural consequence of random ion mixing because ion transport is favoured between well-matched energy sites and is impeded due to the structural mismatch between neighbouring sites for dissimilar ions...
February 16, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28203232/cationic-net-charge-and-counter-ion-type-as-antimicrobial-activity-determinant-factors-of-short-lipopeptides
#20
Katarzyna E Greber, Malgorzata Dawgul, Wojciech Kamysz, Wieslaw Sawicki
To get a better insight into the antimicrobial potency of short cationic lipopeptides, 35 new entities were synthesized using solid phase peptide strategy. All newly obtained lipopeptides were designed to be positively charged from +1 to +4. This was achieved by introducing basic amino acid - lysine - into the lipopeptide structure and had a hydrophobic fatty acid chain attached. Lipopeptides were subjected to microbiological tests using reference strains of Gram-negative bacteria: Escherichia coli, Klebsiella pneumoniae, Proteus vulgaris, Pseudomonas aeruginosa, Gram-positive bacteria: Staphylococcus aureus, Staphylococcus epidermidis, Bacillus subtilis, Enterococcus faecalis, and fungi: Candida albicans, Candida tropicalis, Aspergillus brasiliensis...
2017: Frontiers in Microbiology
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