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https://www.readbyqxmd.com/read/28437176/echinocandins-in-ocular-therapeutics
#1
Akash Patil, Soumyajit Majumdar
Fungal infections of the eye, especially fungal keratitis and endophthalmitis, are major causes of concern and if left untreated could lead to vision loss. Currently, natamycin (polyene antifungal) is the only commercially available topical agent used for the treatment of ocular fungal infections. The other antifungals, belonging to the polyene and azole classes, are used off-label in treating ocular infections and are administered topically, orally, intraocularly, or systemically. Even though their use through the different routes of administration has shown favorable outcomes, challenges such as poor ocular penetration, low bioavailability, ocular toxicity, and systemic side effects limit their utility...
February 24, 2017: Journal of Ocular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28431933/caspofungin-versus-micafungin-in-the-incidence-of-hepatotoxicity-in%C3%A2-patients-with-normal-to-moderate-liver-failure
#2
Yuichi Shibata, Mao Hagihara, Hideo Kato, Noriyo Kawasumi, Jun Hirai, Naoya Nishiyama, Nobuhiro Asai, Yusuke Koizumi, Yuka Yamagishi, Katsuhiko Matsuura, Hiroshige Mikamo
BACKGROUND: One of the major adverse events of caspofungin and micafungin is hepatotoxicity, however, there are few reports compared the incidence of hepatotoxicity between caspofungin and micafungin. Herein, the primary objective of this study was to compare the incidence of hepatotoxicity between caspofungin and micafungin treatments for patients with fungal or suspected fungal infection. METHODS: In total, 201 patients [caspofungin group: 66 patients; micafungin group: 135 patients] treated with echinocandins from April 2014 to November 2015 at Aichi Medical University Hospital...
April 18, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/28429246/comparison-of-efficacy-and-safety-of-caspofungin-versus-micafungin-in-pediatric-allogeneic-stem-cell-transplant-recipients-a-retrospective-analysis
#3
Natalia Maximova, Giulia Schillani, Roberto Simeone, Alessandra Maestro, Davide Zanon
INTRODUCTION: The high morbidity and mortality associated with invasive fungal infections (IFIs) provide the rationale for antifungal prophylaxis in immuno-compromised pediatric patients undergoing hematopoietic stem cell transplantation (HSCT). Caspofungin and micafungin are antifungal agents of interest for prophylaxis of IFIs because of their potency against Candida and minimal toxicity or interactions with other drugs. Few studies have demonstrated the safety and efficacy of such echinocandins as prophylaxis for IFIs in patients undergoing HSCT...
April 20, 2017: Advances in Therapy
https://www.readbyqxmd.com/read/28428132/novel-properties-of-hippophae-rhamnoides-l-twig-and-leaf-extracts-anti-virulence-action-and-synergy-with-antifungals-studied-in%C3%A2-vitro-on-candida-spp-model
#4
Beata Sadowska, Aleksandra Budzyńska, Anna Stochmal, Jerzy Żuchowski, Barbara Różalska
Original, chemically characterized Sea buckthorn (SBT) twig and leaf extracts were in vitro studied in terms of anti-Candida activity. Minimum inhibitory concentrations (MICs) of the extracts against C. albicans ATCC 10231 ranged: 250 μg/ml (twig), 31.5 μg/ml (leaf), and against C. glabrata G1 (clinical isolate) - 15.6 μg/ml (twig), 3.9 μg/ml (leaf). Next the extracts have been used at their subMIC. Both extracts significantly enhanced activity of fluconazole (FLC) and caspofungin (CAS) against C...
April 18, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28417524/biofilms-of-candida-spp-from-the-ocular-conjunctiva-of-horses-with-reduced-azole-susceptibility-a-complicating-factor-for-the-treatment-of-keratomycosis
#5
Raimunda Sâmia Nogueira Brilhante, Paula Vago Bittencourt, Débora de Souza Collares Castelo-Branco, Glaucia Morgana de Melo Guedes, Jonathas Sales de Oliveira, Lucas Pereira Alencar, Rossana de Aguiar Cordeiro, Mariana Pinheiro, Evilázio Fernandes Nogueira-Filho, Waldemiro de Aquino Pereira-Neto, José Júlio Costa Sidrim, Marcos Fábio Gadelha Rocha
OBJECTIVES: This study aimed to assess the biofilm-forming ability of Candida spp. from the ocular conjunctiva of horses and to investigate the antifungal susceptibility of these biofilms. PROCEDURES: Initially, the biofilm-forming ability of 15 strains was assessed by crystal violet staining, which reveals the fungal biomass adhered to the polystyrene plates, and scanning electron microscopy. Then, the minimum inhibitory concentrations (MICs) of amphotericin B, fluconazole, itraconazole, and caspofungin were initially determined against strains in planktonic form...
April 18, 2017: Veterinary Ophthalmology
https://www.readbyqxmd.com/read/28412043/assessment-of-high-priced-systemic-antifungal-prescriptions
#6
C Poulat, Y Nivoix, A Launoy, P Lutun, P Bachellier, S Rohr, M-L Woehl, D Levêque, V Bru, R Herbrecht, B Gourieux
OBJECTIVES: To assess compliance with international guidelines for costly antifungal prescriptions and to compare these results with a first study performed in 2007. METHODS: Retrospective study including all costly antifungal prescriptions made in surgical and medical intensive care units and in a hepatobiliary, pancreatic, and digestive surgery unit. Prescriptions were assessed in terms of indication, dosage, and antifungal de-escalation. RESULTS: Seventy-four treatments were analyzed...
April 12, 2017: Médecine et Maladies Infectieuses
https://www.readbyqxmd.com/read/28407449/drug-interactions-and-safety-profiles-with-concomitant-use-of-caspofungin-and-calcineurin-inhibitors-in-allogeneic-hematopoietic-cell-transplantation
#7
Mitsutaka Nishimoto, Hideo Koh, Atsushi Tokuwame, Yousuke Makuuchi, Masatomo Kuno, Teruhito Takakuwa, Hiroshi Okamura, Shiro Koh, Takuro Yoshimura, Satoru Nanno, Mika Nakamae, Asao Hirose, Yasuhiro Nakashima, Takahiko Nakane, Masayuki Hino, Hirohisa Nakamae
AIM: Small-scale clinical studies have reported on drug interactions between caspofungin (CPFG) and calcineurin inhibitors in healthy subjects; however, little is known about these interactions in allogeneic hematopoietic cell transplantation (allo-HCT) patients. METHODS: We retrospectively assessed the drug interactions and safety profiles in allo-HCT recipients treated concomitantly with CPFG and calcineurin inhibitors. RESULTS: Ninety-one consecutive cases were evaluated...
April 13, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28364558/changing-epidemiology-of-candidaemia-in-australia
#8
Belinda Chapman, Monica Slavin, Debbie Marriott, Catriona Halliday, Sarah Kidd, Ian Arthur, Narin Bak, Christopher H Heath, Karina Kennedy, C Orla Morrissey, Tania C Sorrell, Sebastian van Hal, Caitlin Keighley, Emma Goeman, Neil Underwood, Krispin Hajkowicz, Ann Hofmeyr, Michael Leung, Nenad Macesic, Jeannie Botes, Christopher Blyth, Louise Cooley, C Robert George, Pankaja Kalukottege, Alison Kesson, Brendan McMullan, Robert Baird, Jennifer Robson, Tony M Korman, Stella Pendle, Kerry Weeks, Eunice Liu, Elaine Cheong, Sharon Chen
Objectives: Knowledge of contemporary epidemiology of candidaemia is essential. We aimed to identify changes since 2004 in incidence, species epidemiology and antifungal susceptibilities of Candida spp. causing candidaemia in Australia. Methods: These data were collected from nationwide active laboratory-based surveillance for candidaemia over 1 year (within 2014-2015). Isolate identification was by MALDI-TOF MS supplemented by DNA sequencing. Antifungal susceptibility testing was performed using Sensititre YeastOne™...
April 1, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28356416/in-vitro-antifungal-susceptibility-of-the-yeast-and-mould-phases-of-the-dimorphic-fungal-pathogen-emergomyces-africanus-formerly-emmonsia-species-from-hiv-infected-south-african-patients
#9
Tsidiso G Maphanga, Erika Britz, Thokozile G Zulu, Ruth S Mpembe, Serisha D Naicker, Ilan S Schwartz, Nelesh P Govender
Introduction: Disseminated emmonsiosis is an important AIDS-related mycosis in South Africa caused by Emergomyces africanus, a newly-described and -renamed dimorphic fungal pathogen. In vitro antifungal susceptibility data can guide management.Materials and Methods: Identification of invasive clinical isolates was confirmed phenotypically and by sequencing the internal transcribed spacer region. Yeast and mould-phase MICs for fluconazole, voriconazole, itraconazole, posaconazole, caspofungin, anidulafungin, micafungin and flucytosine were determined using custom-made frozen broth microdilution (BMD) panels, as per Clinical and Laboratory Standards Institute recommendations...
March 29, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28333310/dihydroorotate-dehydrogenase-inhibitor-f901318-has-potent-in-vitro-activity-against-scedosporium-species-and-lomentospora-prolificans
#10
Nathan P Wiederhold, Derek Law, Michael Birch
Background: Scedosporium species and Lomentospora prolificans are increasing causes of invasive infections in immunocompromised hosts and many isolates are resistant to available antifungals. Our objective was to assess the in vitro potency of F901318, a member of the orotomide class of antifungals, against Scedosporium species and L. prolificans . Methods: The in vitro potency of F901318 was evaluated against 66 Scedosporium and 7 L. prolificans clinical isolates using the CLSI M38-A2 reference standard...
March 15, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28333259/predisposing-factors-and-outcome-of-uncommon-yeast-species-related-fungaemia-based-on-an-exhaustive-surveillance-programme-2002-14
#11
Stéphane Bretagne, Charlotte Renaudat, Marie Desnos-Ollivier, Karine Sitbon, Olivier Lortholary, Françoise Dromer
Objectives: Using registry data to compare fungaemia caused by uncommon yeast species (UYS; i.e. other than Candida albicans , Candida glabrata , Candida parapsilosis , Candida tropicalis and Candida krusei ) and C. albicans -related fungaemia can reveal specific predisposing factors of UYS with potential impact on treatment strategies. Methods: We analysed 338 episodes of UYS fungaemia prospectively collected from 27 hospitals (Paris, France; 1 October 2002-31 December 2014) and compared these with 1998 single episodes of C...
March 5, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28333181/candida-auris-candidaemia-in-indian-icus-analysis-of-risk-factors
#12
Shivaprakash M Rudramurthy, Arunaloke Chakrabarti, Raees A Paul, Prashant Sood, Harsimran Kaur, Malini R Capoor, Anupma J Kindo, Rungmei S K Marak, Anita Arora, Raman Sardana, Shukla Das, Deepinder Chhina, Atul Patel, Immaculata Xess, Bansidhar Tarai, Pankaj Singh, Anup Ghosh
Objectives: To identify the risk factors associated with Candida auris candidaemia, as this fungus now poses a global threat. Methods: We performed a subgroup analysis of a previously reported study of 27 Indian ICUs. The clinical data of candidaemia cases due to C. auris and other Candida species were compared to determine significant risk factors associated with C. auris infection. Results: Of the 1400 candidaemia cases reported earlier, 74 (5...
February 20, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28330883/comparative-evaluation-of-sensititre-yeastone%C3%A2-and-clsi-m38-a2-reference-method-for-antifungal-susceptibility-testing-of-aspergillus-spp-against-echinocandins
#13
Maria Siopi, Spyros Pournaras, Joseph Meletiadis
Sensititre YeastOne® (YO) panels were assessed for in vitro susceptibility testing of echinocandins against 39 isolates of A. fumigatus, A. flavus and A. terreus, including two echinocandin-resistant A. fumigatus, using different inocula (10(3), 10(4) and 10(5) cfu/mL), incubation times (16-48h) and endpoints (first blue or purple) and compared with CLSI M38-A2. The best agreement was found with inoculum of 10(4) cfu/mL, incubation time of 20h for A. flavus and 30h for A. fumigatus and A. terreus and reading the first purple well...
March 22, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28321957/activity-of-exogenous-tyrosol-in-combination-with-caspofungin-and-micafungin-against-candida-parapsilosis-sessile-cells
#14
Renátó Kovács, Zoltán Tóth, Fruzsina Nagy, Lajos Daróczi, Aliz Bozó, László Majoros
AIMS: Fungal quorum sensing molecules may have an inhibitory effect as adjuvant against Candida biofilms. Therefore, in vitro activity of caspofungin and micafungin was evaluated against Candida parapsilosis biofilms in the presence of tyrosol. METHODS AND RESULTS: Interactions were assessed using fractional inhibitory concentration index (FICI) determination, metabolic activity-based time-kill experiments, and scanning electron microscopy. Tyrosol caused 1- to 16-fold and 2- to 32-fold decrease in median caspofungin and micafungin MICs, respectively...
March 21, 2017: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/28317391/in-vitro-inhibitory-effects-of-farnesol-and-interactions-between-farnesol-and-antifungals-against-biofilms-of-candida-albicans-resistant-strains
#15
Jinping Xia, Fang Qian, Wenqian Xu, Zhenzhen Zhang, Xin Wei
Antifungal resistance is a serious problem in clinical infections. Farnesol, which is a potential antifungal agent against biofilms formed by Candida albicans resistant strains (a fluconazole-resistant isolate derived from SC5314 and two clinical Candida resistant isolates), was investigated in this study. The inhibitory effects of farnesol on biofilms were examined by XTT assay. The morphological changes and biofilm thicknesses were analyzed by scanning electron microscopy and confocal laser scanning microscopy, respectively...
April 2017: Biofouling
https://www.readbyqxmd.com/read/28283014/-fungemia-and-septic-arthritis-caused-by-saprochaete-capitata-in-a-patient-with-fanconi-aplastic-anemia-a-case-report
#16
Ömür Mustafa Parkan, Mustafa Altay Atalay, Ayşe Nedret Koç, Çiğdem Pala, Gonca Aydemir, Leylagül Kaynar
Saprochaete capitata (formerly known as Blastoschizomyces capitatus, Trichosporon capitatum, Geotrichum capitatum) is a rare but emerging yeast-like fungus. It is commonly found in environmental sources and can be isolated from skin, gastrointestinal system and respiratory tract of healthy individuals as well. It mainly infects patients with hematological malignancies such as acute myeloid leukemia (AML), especially in the presence of neutropenia; and mortality rates are high in those patients. Although the data about the in vitro antifungal susceptibility are limited, it is being reported that amphotericin B and voriconazole are more effective on S...
January 2017: Mikrobiyoloji Bülteni
https://www.readbyqxmd.com/read/28280685/catheter-related-saccharomyces-cerevisiae-fungemia-following-saccharomyces-boulardii-probiotic-treatment-in-a-child-in-intensive-care-unit-and-review-of-the-literature
#17
Serkan Atıcı, Ahmet Soysal, Kıvılcım Karadeniz Cerit, Şerife Yılmaz, Burak Aksu, Gürsu Kıyan, Mustafa Bakır
Although Saccharomyces boulardii is usually a non-pathogenic fungus, in rare occasions it can cause invasive infection in children. We present the case of an 8-year-old patient in pediatric surgical intensive care unit who developed S. cerevisiae fungemia following probiotic treatment containing S. boulardii. Caspofungin was not effective in this case and he was treated with amphotericin B. We want to emphasize that physicians should be careful about probiotic usage in critically ill patients.
March 2017: Medical Mycology Case Reports
https://www.readbyqxmd.com/read/28264849/genetic-diversity-and-in-vitro-antifungal-susceptibility-of-200-clinical-and-environmental-aspergillus-flavus-isolates
#18
Mojtaba Taghizadeh-Armaki, Mohammad Taghi Hedayati, Saham Ansari, Saeed Mahdavi Omran, Sasan Saber, Haleh Rafati, Jan Zoll, Henrich A van der Lee, Willem J G Melchers, Paul E Verweij, Seyedmojtaba Seyedmousavi
Aspergillus flavus has been frequently reported as the leading cause of invasive aspergillosis in certain tropical and sub-tropical countries.Two hundred A. flavus strains originating from clinical and environmental sources and collected between 2008 and 2015 were phylogenetically identified at the species level by analyzing partial β-tubulin and calmodulin genes. In vitro antifungal susceptibility testing was performed against antifungals using the EUCAST (European Committee on Antimicrobial Susceptibility Testing) broth microdilution method...
March 6, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28238781/caspofungin-exposure-alters-the-core-septin-aspb-interactome-of-aspergillus-fumigatus
#19
José M Vargas-Muñiz, Hilary Renshaw, Greg Waitt, Erik J Soderblom, M Arthur Moseley, Jonathan M Palmer, Praveen R Juvvadi, Nancy P Keller, William J Steinbach
Aspergillus fumigatus, the main etiological agent of invasive aspergillosis, is a leading cause of death in immunocompromised patients. Septins, a conserved family of GTP-binding proteins, serve as scaffolding proteins to recruit enzymes and key regulators to different cellular compartments. Deletion of the A. fumigatus septin aspB increases susceptibility to the echinocandin antifungal caspofungin. However, how AspB mediates this response to caspofungin is unknown. Here, we characterized the AspB interactome under basal conditions and after exposure to a clinically relevant concentration of caspofungin...
April 1, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28223384/tolerance-to-caspofungin-in-candida-albicans-is-associated-with-at-least-three-distinctive-mechanisms-that-govern-expression-of-fks-genes-and-cell-wall-remodeling
#20
Feng Yang, Lulu Zhang, Hironao Wakabayashi, Jason Myers, Yuanying Jiang, Yongbing Cao, Cristina Jimenez-Ortigosa, David S Perlin, Elena Rustchenko
Expanding echinocandin use to prevent or treat invasive fungal infections has led to an increase in the number of breakthrough infections due to resistant Candida species. Although uncommon, echinocandin resistance is well documented for Candida albicans, which is among the most prevalent bloodstream organisms. A better understanding is needed to assess the cellular factors that promote tolerance and predispose infecting cells for clinical breakthrough. We have previously showed that some mutants adapted to growth in the presence of toxic sorbose due to loss of one chromosome 5 (Ch5) also became more tolerant to caspofungin...
February 21, 2017: Antimicrobial Agents and Chemotherapy
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