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https://www.readbyqxmd.com/read/28088767/pharmacokinetic-study-of-anidulafungin-in-icu-patients-with-intra-abdominal-candidiasis
#1
H Dupont, L Massias, B Jung, N Ammenouche, P Montravers
BACKGROUND: Only limited pharmacokinetic data are available for anidulafungin in ICU patients, especially in patients treated for severe intra-abdominal infection (IAI). METHODS: This was a prospective multicentre observational study in ICU patients with suspected yeast IAI. All patients received an intravenous loading dose of 200 mg of anidulafungin, followed by 100 mg/day. Thirteen blood samples were drawn between day 1 and day 5 for pharmacokinetic analysis...
January 14, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28081316/evaluation-of-epidemiological-characteristics-and-risk-factors-affecting-mortality-in-patients-with-candidemia
#2
Fatma Yılmaz Karadağ, Pınar Ergen, Özlem Aydın, Arzu Doğru, Berrin Tanıdır, Mustafa Haluk Vahaboğlu
BACKGROUND/AIM: The aim of this study was to determine epidemiologic characters of patients with candidemia and to evaluate risk factors that can affect mortality rates among these patients. MATERIALS AND METHODS: Patients admitted to the İstanbul Medeniyet University Göztepe Training Hospital between 2009 and 2011 who had a positive blood culture for Candida spp. during hospitalization were studied retrospectively for demographic characteristics and risk factors...
December 20, 2016: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28081296/short-synthetic-%C3%AE-helical-forming-peptide-amphiphiles-for-fungal-keratitis-treatment-in-vivo
#3
Hong Wu, Shaoqiong Liu, Nikken Wiradharma, Zhan Yuin Ong, Yan Li, Yi Yan Yang, Jackie Y Ying
The emergence of fungal keratitis is on the rise globally. However, current antifungal therapeutics are ineffective in severe keratomycosis. Previously reported α-helical peptides comprising 8-14 amino acids demonstrate broad-spectrum antimicrobial activity both in vitro and in vivo. Here, α-helical peptides of the optimized sequences are investigated for antifungal biofilm in vitro and in vivo using a fungal biofilm-caused mouse keratitis model. The peptides with the optimal composition demonstrate higher α-helical propensity and improve antifungal activity in dispersing Candida albicans biofilm in vitro...
January 12, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28079132/critical-role-for-cafen1-and-cafen12-of-candida-albicans-in-cell-wall-integrity-and-biofilm-formation
#4
Md Alfatah, Vinay K Bari, Anubhav S Nahar, Swati Bijlani, K Ganesan
Sphingolipids are involved in several cellular functions, including maintenance of cell wall integrity. To gain insight into the role of individual genes of sphingolipid biosynthetic pathway, we have screened Saccharomyces cerevisiae strains deleted in these genes for sensitivity to cell wall perturbing agents calcofluor white and congo red. Only deletants of FEN1 and SUR4 genes were found to be sensitive to both these agents. Candida albicans strains deleted in their orthologs, CaFEN1 and CaFEN12, respectively, also showed comparable phenotypes, and a strain deleted for both these genes was extremely sensitive to cell wall perturbing agents...
January 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28077516/early-onset-invasive-candidiasis-in-extremely-low-birth-weight-infants-perinatal-acquisition-predicts-poor-outcome
#5
Michelle Barton, Alex Shen, Karel O'Brien, Joan L Robinson, H Dele Davies, Kim Simpson, Elizabeth Asztalos, Joanne Langley, Nicole Le Saux, Reginald Sauve, Anne Synnes, Ben Tan, Louis de Repentigny, Earl Rubin, Chuck Hui, Lajos Kovacs, Yvonne Cw Yau, Susan E Richardson
BACKGROUND: Neonatal invasive candidiasis (IC)presenting in the first week of life is less common and less well described than later onset IC. Risk factors, clinical features and disease outcomeshave not been studied in early onset disease (EOD, ≤7d) or compared to late onset disease (LOD, >7d). METHODS: All extremely low birth weight (ELBW, <1000g) cases with IC and controls froma multicentre study of neonatal candidiasisenrolledfrom 2001 to 2003were included in this study...
January 11, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28076372/bad-to-the-bone-on-in-vitro-and-ex-vivo-microbial-biofilm-ability-to-directly-destroy-colonized-bone-surfaces-without-participation-of-host-immunity-or-osteoclastogenesis
#6
Adam Junka, Patrycja Szymczyk, Grzegorz Ziółkowski, Ewa Karuga-Kuzniewska, Danuta Smutnicka, Iwona Bil-Lula, Marzenna Bartoszewicz, Susan Mahabady, Parish Paymon Sedghizadeh
Bone infections are a significant public health burden associated with morbidity and mortality in patients. Microbial biofilm pathogens are the causative agents in chronic osteomyelitis. Research on the pathogenesis of osteomyelitis has focused on indirect bone destruction by host immune cells and cytokines secondary to microbial insult. Direct bone resorption by biofilm pathogens has not yet been seriously considered. In this study, common osteomyelitis pathogens (Staphylococcus aureus, Pseudomonas aeruginosa, Candida albicans, and Streptococcus mutans) were grown as biofilms in multiple in vitro and ex vivo experiments to analyze quantitative and qualitative aspects of bone destruction during infection...
2017: PloS One
https://www.readbyqxmd.com/read/28074638/clinical-management-of-candida-albicans-keratomycosis-in-a-bottlenose-dolphin-tursiops-truncatus
#7
Claire A Simeone, John P Traversi, Jenny M Meegan, Carolina LeBert, Carmen M H Colitz, Eric D Jensen
OBJECTIVE: Corneal ulceration secondary to trauma commonly affects marine mammals, often with opportunistic secondary bacterial or fungal infections. This report characterizes the combined use of auriculopalpebral and ophthalmic nerve blocks, adipose-derived stem cells, and subconjunctival injections for successful treatment of corneal trauma and infection in dolphins. ANIMAL STUDIED: An 11-year-old, female bottlenose dolphin (Tursiops truncatus) presented with bilateral diffuse corneal opacities, which progressed to keratomycosis caused by Candida albicans...
January 11, 2017: Veterinary Ophthalmology
https://www.readbyqxmd.com/read/28073163/hydrocarbon-stapled-lipopeptides-exhibit-selective-antimicrobial-activity
#8
Zachary B Jenner, Christopher M Crittenden, Martín Gonzalez, Jennifer S Brodbelt, Kerry A Bruns
Antimicrobial peptides (AMPs) occur widely in nature and have been studied for their therapeutic potential. AMPs are of interest due to the large number of possible chemical structural combinations using natural and unnatural amino acids, with varying effects on their biological activities. Using physicochemical properties from known naturally occurring amphipathic cationic AMPs, several hydrocarbon-stapled lipopeptides (HSLPs) were designed, synthesized, and tested for antimicrobial properties. Peptides were chemically modified by N-terminal acylation, C-terminal amidation, and some were hydrocarbon stapled by intramolecular olefin metathesis...
January 10, 2017: Biopolymers
https://www.readbyqxmd.com/read/28072890/candida-albicans-survival-growth-and-biofilm-formation-are-differently-affected-by-mouthwashes-an-in-vitro-study
#9
Simona Paulone, Giulia Malavasi, Andrea Ardizzoni, Carlotta Francesca Orsi, Samuele Peppoloni, Rachele Giovanna Neglia, Elisabetta Blasi
Candida albicans is the most common cause of oral mycoses. The aim of the present study was to investigate in vitro the susceptibility of C. albicans to mouthwashes, in terms of growth, survival and biofilm formation. Candida albicans, laboratory strain SC5314, and 7 commercial mouthwashes were employed: 3 with 0.2% chlorhexidine digluconate; 1 with 0.06% chlorhexidine digluconate and 250 ppm F- sodium fluoride; 3 with fluorine-containing molecules. None of the mouthwashes contained ethanol in their formulations...
January 9, 2017: New Microbiologica
https://www.readbyqxmd.com/read/28071858/synthesis-and-biological-evaluation-of-novel-2-aminonicotinamide-derivatives-as-antifungal-agents
#10
Tingjunhong Ni, Ran Li, Fei Xie, Jing Zhao, Xin Huang, Maomao An, Chengxu Zang, Zhan Cai, Dazhi Zhang, Yuanying Jiang
Based on the structures of the reported compounds G884, E1210, and 10b which inhibit the biosynthesis of glycosylphosphatidylinositol (GPI)-anchored proteins in fungi, a series of novel 2-aminonicotinamide derivatives were designed, synthesized and evaluated for in vitro antifungal activity. Most of these compounds exhibited potent in vitro antifungal activity against Candida albicans with MIC80 values ranging from 0.0313 to 4.0 µg/mL. Especially, compounds 11g and 11h displayed excellent activity against Candida albicans with MIC80 values of 0...
January 10, 2017: ChemMedChem
https://www.readbyqxmd.com/read/28071802/essential-oils-against-pathogen-and-spoilage-microorganisms-of-fruit-juices-use-of-versatile-antimicrobial-delivery-systems
#11
Valentina Trinetta, Mark T Morgan, John N Coupland, Umut Yucel
Essential oils (EO) are increasingly used as natural antimicrobial compounds, however the effect of delivery system to enhance their antimicrobial activity has not been widely studied. Limonene (0 to 10 μL/mL) was added to microbial suspensions (∼10(5) CFU/mL) of selected foodborne pathogens (Listeria monocytogenes Scott A, Salmonella enterica Typhimurium, Escherichia coli and Staphylococcus aureus), and spoilage microorganisms (Lactobacillus plantarum, Saccharomyces cerevisiae, and Candida albicans). S...
January 10, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/28070570/variable-coordination-and-c-s-bond-cleavage-activity-of-n-substituted-imidazolidine-2-thiones-towards-copper-synthesis-spectroscopy-structures-esi-mass-and-antimicrobial-studies
#12
Jaspreet K Aulakh, Tarlok S Lobana, Henna Sood, Daljit S Arora, Isabel Garcia-Santos, Geeta Hundal, Manpreet Kaur, Victoria A Smolenski, Jerry P Jasinski
An equimolar reaction of copper(i) iodide with N-ethyl-imidazolidine-2-thione (l-Et) in acetonitrile formed black prismatic crystals over a period of three weeks. The X-ray structure determination of black crystals revealed that the thio-ligand l-Et has transformed into a new thio-ligand, 1-ethyl-3-(1-ethyl-4,5-dihydro-1H-imidazol-2-yl)imidazolidine-2-thione (l-NEt), through C-S rupture/C-N bond formation which was coordinated in the unusual 2D polymer, {(Cu(II)(κ(2)-N,S-l-NEt)2)·(CuI4)·(CuI2)}n1. An ESR spectrum supported the presence of divalent Cu(II) in the polymer...
January 10, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28070047/-clinical-analysis-for-patients-with-continuous-ambulatory-peritoneal-dialysis-associated-peritonitis
#13
Jian Liu, Xun Huang, Yao Liu, Hui Xu, Rui'e Gong, Chunhui Li
To analyze the clinical characteristics of continuous ambulatory peritoneal dialysis (CAPD) associated peritonitis in the tertiary hospitals and to discuss the preventive and therapeutic strategy.
 Methods: The clinical characteristics, pathogens, resistance and outcomes of 126 CAPD associated peritonitis in 104 patients from Jan, 2013 to June, 2016, were retrospectively analyzed.
 Results: Among the patients, the incidence rates of abdominal pain, fever, diarrhea and emesis were 104 (82.54%), 56 (44.44%), 49 (38...
December 28, 2016: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/28069658/scy-078-is-fungicidal-in-time-kill-studies-against-candida-species
#14
Bernard Scorneaux, David Angulo, Katyna Borroto-Esoda, Mahmoud Ghannoum, Michael Peel, Stephen Wring
SCY-078 is an orally bioavailable ß-1,3-glucan synthesis inhibitor (GSI) and the first-in-class of structurally novel triterpine antifungals in clinical development for treating candidemia and invasive candidiasis. In vitro susceptibility by broth micro-dilution, antifungal carry-over, and time-kill dynamics were determined for 3 reference (ATCC) strains (C. albicans 90028, C. parapsilosis 90018, and C. tropicalis 750), a Quality Control (QC) strain (C krusei 6258), and 4 other strains (C. albicans MYA-2732, 64124, 76485 and C...
January 9, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28069415/silymarin-exerts-antifungal-effects-via-membrane-targeted-mode-of-action-by-increasing-permeability-and-inducing-oxidative-stress
#15
Dae Gyu Yun, Dong Gun Lee
Silymarin, which is derived from the seeds of Silybum marianum, has been widely used to prevent and treat liver disorders. It is also consumed as a dietary supplement to improve liver function, as it does not exhibit any toxic effects in humans. Recently, silymarin has been reported to show antimicrobial effects against various pathogenic microorganisms, but the mode of action remains unknown. Thus, we investigated the antifungal activity of silymarin and aimed to determine the underlying mechanism. Initially, a propidium iodide assay was carried out; the results indicated that silymarin induced injury to the fungal plasma membrane...
January 7, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28068844/hierarchical-cluster-analysis-and-chemical-characterisation-of-myrtus-communis-l-essential-oil-from-yemen-region-and-its-antimicrobial-antioxidant-and-anti-colorectal-adenocarcinoma-properties
#16
Sirajudheen Anwar, Rebecca A Crouch, Nasser A Awadh Ali, Mohamed A Al-Fatimi, William N Setzer, Ludger Wessjohann
The hydrodistilled essential oil obtained from the dried leaves of Myrtus communis, collected in Yemen, was analysed by GC-MS. Forty-one compounds were identified, representing 96.3% of the total oil. The major constituents of essential oil were oxygenated monoterpenoids (87.1%), linalool (29.1%), 1,8-cineole (18.4%), α-terpineol (10.8%), geraniol (7.3%) and linalyl acetate (7.4%). The essential oil was assessed for its antimicrobial activity using a disc diffusion assay and resulted in moderate to potent antibacterial and antifungal activities targeting mainly Bacillus subtilis, Staphylococcus aureus and Candida albicans...
January 9, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28068213/utilization-of-size-polymorphism-in-its1-and-its2-regions-for-identification-of-pathogenic-yeast-species
#17
Hossein Khodadadi, Ladan Karimi, Niloufar Jalali-Zand, Hassan Adin, Hossein Mirhendi
Despite the existence of a variety of available yeast identification strategies, easier and more cost-effective methods are required for routine use in clinical laboratories. The internal transcribed spacer (ITS) regions of fungal rRNA genes exhibit variable sizes depending on the yeast species. In the present study, fragment size polymorphism (FSP) analysis of the ITS1 and ITS2 regions for identification of the clinically most important yeast species was assessed. The ITS1 and ITS2 regions of 190 strains, including isolates of 31 standard strains and 159 clinical isolates, were separately PCR-amplified with two primer sets: ITS1-ITS2 and ITS3-ITS4...
January 9, 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28067067/chemical-composition-antimicrobial-antioxidant-and-anthocyanin-activities-of-mosses-cinclidotus-fontinaloides-hedw-p-beauv-and-palustriella-commutata-hedw-ochyra-gathered-from-turkey
#18
Ozlem Tonguc Yayintas, Duygu Alpaslan, Yonca Karagul Yuceer, Selehattin Yilmaz, Nurettin Sahiner
Cinclidotus fontinaloides (Hedw.) P. Beauv. and Palustriella commutata (Hedw.) Ochyra were used in this study. The chemical composition of mosses in the ethanol and water extract was determined using GC-MS and FT-IR. Antioxidant activities of moss extracts were tested by total phenol and ABTS methods. Trolox equivalent value (TEAC) of mosses was calculated as 26 ± 0.32 and 10 ± 0.22 mg/g. The amounts of the flavonoid compounds were calculated as mg gallic acid. Gallic acid equivalent value of mosses was calculated as 587 ± 0...
January 9, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28065893/pan-azole-resistant-candida-tropicalis-carrying-homozygous-erg11-mutations-at-position-k143r-a-new-emerging-superbug
#19
Mariana I D S Xisto, Rita D F Caramalho, Débora A S Rocha, Antonio Ferreira-Pereira, Bettina Sartori, Eliana Barreto-Bergter, Maria L Junqueira, Cornelia Lass-Flörl, Michaela Lackner
OBJECTIVES: Candidaemia is a public health problem mainly in hospitalized individuals worldwide. In Brazil, Candida albicans is the most prevalent species that causes candidaemia, followed by Candida tropicalis and Candida parapsilosis Few data on the abundance of antifungal resistance are available for Latin America. METHODS: We analysed the frequency of azole and echinocandin resistance in Candida isolates (n = 75) collected between 2012 and 2014 at the University Hospital of Federal University of Juiz de Fora (Brazil)...
January 8, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28063982/proteomic-analysis-of-lysine-succinylation-of-the-human-pathogen-histoplasma-capsulatum
#20
Longxiang Xie, Juan Li, Wanyan Deng, Zhaoxiao Yu, Wenjie Fang, Min Chen, Wanqing Liao, Jianping Xie, Weihua Pan
: Histoplasma capsulatum, the causative agent of histoplasmosis (also called "Darling's disease"), can affect both immunocompetent and immunocompromised hosts. Post-translational protein modification by lysine succinylation (Ksuc) is a frequent occurrence in eukaryote and prokaryote. Recently, the roles of succinylation and its regulatory enzymes in regulating metabolic pathway in bacteria, mammalian and fungus were highlighted. Here, we report the first global profiling of lysine succinylation, with 463 modification sites in 202 proteins from H...
January 4, 2017: Journal of Proteomics
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