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Candida spp

J N Vieira, A M Feijó, M E Bueno, C L Gonçalves, R G Lund, J F Mendes, J P V Villarreal, M M Villela, P S Nascente
The aim of this study was to evaluate the frequency of Candida species between a non-hospitalized and a hospitalized population. For this purpose, samples of saliva were sampled through sterile swabs, moistened in peptone water and rubbed in the oral cavity of 140 individuals, from which, 70 were hospitalized patients from the Medical Clinic of a Teaching Hospital and the other 70 were non-hospitalized subjects. All saliva samples were plated in Sabouraud Dextrose agar added with Chloramphenicol and incubated at 36 °C for 48 hours...
February 15, 2018: Brazilian Journal of Biology, Revista Brasleira de Biologia
N Pinder, L H Pelzl, G Walther, J Backhaus, O Kurzai, T Hoppe-Tichy
BACKGROUND: Ready to use caspofungin infusion bags are centrally prepared in the Hospital Pharmacy, University Hospital of Heidelberg, for economic reasons and possibly occurring problems with drug shortages. The aim of this study was a quality control of the in-house preparation of caspofungin infusion bags and the preparation process. Caspofungin concentration with regard to chemical stability and antifungal activity of caspofungin preparations were defined as quality parameters. METHODS: Three caspofungin infusion bags (50 mg in 100 mL 0...
April 1, 2017: Die Pharmazie
Ming-Chi Li, Tsung C Chang, Hung-Mo Chen, Chi-Jung Wu, Shu-Li Su, Susan S-J Lee, Po-Lin Chen, Nan-Yao Lee, Ching-Chi Lee, Chia-Wen Li, Ling-Shan Syue, Wen-Chien Ko
We evaluated matrix-assisted laser desorption ionization time-of-flight mass spectrometry using VITEK MS (IVD database) and an oligonucleotide array based on the internal transcribed spacer-1 (ITS-1) and ITS-2 sequences of rRNA genes for the identification of Candida spp. from blood cultures. Five-hundred and twelve consecutive bloodstream yeast isolates were collected daily and initially identified by the phenotypic automated method (VITEK YBC or VITEK2 YST card). Inconsistent results were confirmed by D1-D2 region of 28S rRNA genes and ITSs...
2018: Frontiers in Microbiology
Marco Fiore, Marco Cascella, Sabrina Bimonte, Alberto Enrico Maraolo, Ivan Gentile, Vincenzo Schiavone, Maria Caterina Pace
Fungal infections of the liver, most commonly caused by Candida spp., often occur in patients with hematologic malignancies treated with chemotherapy. Colonization of the gastrointestinal tract is thought to be the main origin of dissemination of Candida ; mucositis and neutropenia facilitate the spread of Candida from the gastrointestinal tract to the liver. Hepatic involvement due to other fungi is a less common infectious complication in this setting. Fungal infections represent a less common cause of hepatic abscesses in non-oncohematologic population and the trend appears to be decreasing in recent years...
2018: Infection and Drug Resistance
P A Reuken, W Kruis, C Maaser, N Teich, J Büning, J C Preiß, R Schmelz, T Bruns, S Fichtner-Feigl, A Stallmach
Background: Intra-abdominal abscesses (IAA) are common life threatening complications in patients with Crohn's disease (CD). In addition to interventional drainage and surgical therapy, empirical antibiotic therapy represents a corner stone of treatment but contemporary data on microbial spectra and antimicrobial resistance are scarce. Methods: We recruited 105 patients with CD and IAA from 9 German centers for a prospective registry in order to characterize the microbiological spectrum, resistance profiles, antibiotic therapy and outcome...
February 5, 2018: Journal of Crohn's & Colitis
Fernando Chaves, José Garnacho-Montero, José Luis Del Pozo, Emilio Bouza, José Antonio Capdevila, Marina de Cueto, M Ángeles Domínguez, Jaime Esteban, Nuria Fernández-Hidalgo, Marta Fernández Sampedro, Jesús Fortún, María Guembe, Leonardo Lorente, Jose Ramón Paño, Paula Ramírez, Miguel Salavert, Miguel Sánchez, Jordi Vallés
Catheter-related bloodstream infections (CRBSI) constitute an important cause of hospital-acquired infection associated with morbidity, mortality, and cost. The aim of these guidelines is to provide updated recommendations for the diagnosis and management of CRBSI in adults. Prevention of CRBSI is excluded. Experts in the field were designated by the two participating Societies (Sociedad Española de Enfermedades Infecciosas y Microbiología Clínica and the Sociedad Española de Medicina Intensiva, Crítica y Unidades Coronarias)...
February 2018: Enfermedades Infecciosas y Microbiología Clínica
E Robledo-Leal, L G Rivera-Morales, M P Sangorrín, G M González, G Ramos-Alfano, J M Adame-Rodriguez, J M Alcocer-Gonzalez, E T Arechiga-Carvajal, C Rodriguez-Padilla
Although invasive infections and mortality caused by Candida species are increasing among compromised patients, resistance to common antifungal agents is also an increasing problem. We analyzed 60 yeasts isolated from patients with invasive candidiasis using a PCR/RFLP strategy based on the internal transcribed spacer (ITS2) region to identify different Candida pathogenic species. PCR analysis was performed from genomic DNA with a primer pair of the ITS2-5.8S rDNA region. PCR-positive samples were characterized by RFLP...
February 1, 2018: Brazilian Journal of Biology, Revista Brasleira de Biologia
Subramanian Muthamil, Vivekanandham Amsa Devi, Boopathi Balasubramaniam, Krishnaswamy Balamurugan, Shunmugiah Karutha Pandian
Candida species are opportunistic fungal pathogens, which are known for their biofilm associated infections on implanted medical devices in clinical settings. Broad spectrum usage of azole groups and other antifungal agents leads to the occurrence of drug resistance among Candida species. Most of the antifungal agents have failed to treat the biofilm mediated Candida infections. In the present study, silver nanoparticles (AgNPs) were synthesized using Dodonaea viscosa and Hyptis suoveolens methanolic leaf extracts and characterized by ultraviolet-visible absorption spectroscopy, X-ray diffraction analysis, Fourier transform infrared spectroscopy and Scanning electron microscopy, Dynamic light scattering, and Zeta potential analysis...
February 7, 2018: Journal of Basic Microbiology
Dahmani Amani, Noumi Emira, Trabelsi Ismail, Eddouzi Jamel, Sanglard Dominique, Del Campo Rosa, Snoussi Mejdi
The virulence properties of Candida spp. presents in landfill leachate still unknown until today and they constitutes a serious source of potential danger for humans. We investigate the antifungal susceptibility, production of hydrolytic enzymes and biofilm formation on polystyrene as well as glass in Candida spp. strains isolated from a landfill leachate treatment station in Borj Chakir (Tunisia). 37 yeast strains were isolated belonging to the following species: C. robusta, C. lusitaniae, C. tropicalis, C...
January 30, 2018: Microbial Pathogenesis
F Chaves, J Garnacho-Montero, J L Del Pozo, E Bouza, J A Capdevila, M de Cueto, M Á Domínguez, J Esteban, N Fernández-Hidalgo, M Fernández Sampedro, J Fortún, M Guembe, L Lorente, J R Paño, P Ramírez, M Salavert, M Sánchez, J Vallés
Catheter-related bloodstream infections (CRBSI) constitute an important cause of hospital-acquired infection associated with morbidity, mortality, and cost. The aim of these guidelines is to provide updated recommendations for the diagnosis and management of CRBSI in adults. Prevention of CRBSI is excluded. Experts in the field were designated by the two participating Societies (the Spanish Society of Infectious Diseases and Clinical Microbiology and [SEIMC] and the Spanish Society of Spanish Society of Intensive and Critical Care Medicine and Coronary Units [SEMICYUC])...
January 2018: Medicina Intensiva
Abiroo Jan, Gulnaz Bashir, Bashir Ahmad Fomda, Dekyong Angmo Urgain Khangsar, Munazah Manzoor, Amrish Kohli, Sulmaz Reshi, Mohd Suhail, Saba Choudhary, Akeela Fatima
BACKGROUND: Candida dubliniensis is a pathogenic Candida species which shares many phenotypic features with Candida albicans. These similarities have caused significant problems in the identification of C. dubliniensis in an average clinical mycology laboratory. Several phenotypic-based tests have been developed to distinguish C. albicans from C. dubliniensis but none has been demonstrated being sufficient alone for accurate differentiation of the two species. AIM: To facilitate the differentiation of these species, we evaluated the utility of a novel medium 'Hypertonic Xylose Agar Medium' (HXAM)...
October 2017: Indian Journal of Medical Microbiology
Ilan S Schwartz, Thomas F Patterson
PURPOSE OF REVIEW: The global emergence of antifungal resistance among Candida spp. and Aspergillus spp. will disproportionately affect transplantation recipients, who are prone to invasive fungal disease. RECENT FINDINGS: Invasive candidiasis is increasingly caused by non-albicans Candida species with reduced susceptibility to first-line antifungals. Echinocandin resistance in Candida glabrata is increasing in some settings. Candida auris has rapidly emerged as a global concern due to multidrug resistance and efficient nosocomial spread in healthcare settings...
February 5, 2018: Current Infectious Disease Reports
Maria N Gamaletsou, Thomas J Walsh, Nikolaos V Sipsas
Invasive fungal infections caused by drug-resistant organisms, are an emerging threat to heavily immunosuppressed patients with haematological malignancies. Modern early antifungal treatment strategies, such as prophylaxis, empirical and pre-emptive therapy result in long term exposure to antifungal agents, which is a major driving force for the development of resistance. The extended use of central venous catheters, the non-linear pharmacokinetics of certain antifungal agents, neutropenia, other forms of intense immunosuppression, and drug toxicities are other contributing factors...
February 2, 2018: Turkish Journal of Haematology: Official Journal of Turkish Society of Haematology
Anubhav Kanwar, Jennifer L Cadnum, Dongyan Xu, Annette L Jencson, Curtis J Donskey
BACKGROUND Contaminated ice machines have been linked to transmission of pathogens in healthcare facilities. OBJECTIVE To determine the frequency and sites of contamination of ice machines in multiple healthcare facilities and to investigate potential mechanisms of microorganism dispersal from contaminated ice machines to patients. DESIGN Multicenter culture survey and simulation study. SETTING The study took place in 5 hospitals and 2 nursing homes in northeastern Ohio. METHODS We cultured multiple sites on ice machines from patient care areas...
January 31, 2018: Infection Control and Hospital Epidemiology
Priya Madhavan, Farida Jamal, Chong Pei Pei, Fauziah Othman, Arunkumar Karunanidhi, Kee Peng Ng
Infections by non-albicans Candida species are a life-threatening condition, and formation of biofilms can lead to treatment failure in a clinical setting. This study was aimed to demonstrate the in vitro antibiofilm activity of fluconazole (FLU) and voriconazole (VOR) against C. glabrata, C. parapsilosis and C. rugosa with diverse antifungal susceptibilities to FLU and VOR. The antibiofilm activities of FLU and VOR in the form of suspension as well as pre-coatings were assessed by XTT [2,3-bis-(2-methoxy-4-nitro-5-sulfophenyl)-2H-tetrazolium-5-carboxanilide] reduction assay...
January 29, 2018: Mycopathologia
Miao Zhao, Alexander J Lepak, Brian VanScoy, Justin C Bader, Karen Marchillo, Jamie Vanhecker, Paul G Ambrose, David R Andes
APX001 is the prodrug of APX001A, which is a first in class small molecule with a unique mechanism of action that inhibits the fungal enzyme (Gwt1) in the glycosylphosphatidylinositol (GPI) biosynthesis pathway. The goal of the present study was to determine which pharmacokinetic/pharmacodynamic (PK/PD) index and magnitude best correlated with efficacy in the murine disseminated candidiasis model for Candida albicans (n=5), C. glabrata (n=5) and C. auris (n=4). MIC values ranged from 0.002 to 0.03 mg/L for C...
January 29, 2018: Antimicrobial Agents and Chemotherapy
Christina Orasch, Dominik Mertz, Jorge Garbino, Christian van Delden, Stephane Emonet, Jacques Schrenzel, Stefan Zimmerli, Lauro Damonti, Konrad Mühlethaler, Alexander Imhof, Christian Ruef, Jan Fehr, Reinhard Zbinden, Katia Boggian, Thomas Bruderer, Ursula Flückiger, Anna Conen, Nina Khanna, Reno Frei, Thomas Bregenzer, Frédéric Lamoth, Véronique Erard, Pierre-Yves Bochud, Thierry Calandra, Jacques Bille, Oscar Marchetti
OBJECTIVES: Breakthrough candidemia (BTC) on fluconazole was associated with non-susceptible Candida spp. and increased mortality. This nationwide FUNGINOS study analyzed clinical and mycological BTC characteristics. METHODS: 3-year prospective study in 567 consecutive candidemias. Species identification and susceptibility testing (CLSI) in reference laboratory. Data analysis according to STROBE criteria. RESULTS: 43/576 (8%) BTC were studied: 37/43 (86%) on fluconazole (28 prophylaxis, median 200mg/day)...
January 26, 2018: Journal of Infection
Iriagbonse I Osaigbovo, Patrick V Lofor, Rita O Oladele
Oropharyngeal candidiasis, a common fungal infection in people living with HIV/AIDS (PLWHA), arises from Candida species colonizing the oral cavity. Fluconazole is the preferred treatment and is often used empirically. Few studies have investigated the prevalence of fluconazole resistance in Nigeria. This study aimed at determining the burden of fluconazole resistance among Candida species in the oral cavities of PLWHA. We sampled the oral cavities of 350 HIV-infected adults and an equal number of HIV-negative controls...
December 8, 2017: Journal of Fungi (Basel, Switzerland)
Andrea Peano, Mario Pasquetti, Paolo Tizzani, Elisa Chiavassa, Jacques Guillot, Elizabeth Johnson
Reference methods for antifungal susceptibility testing of yeasts have been developed by the Clinical and Laboratory Standards Institute (CLSI) and the European Committee on Antibiotic Susceptibility Testing (EUCAST). These methods are intended to test the main pathogenic yeasts that cause invasive infections, namely Candida spp. and Cryptococcusneoformans, while testing other yeast species introduces several additional problems in standardization not addressed by these reference procedures. As a consequence, a number of procedures have been employed in the literature to test the antifungal susceptibility of Malassezia pachydermatis...
July 5, 2017: Journal of Fungi (Basel, Switzerland)
Linda Davidson, Mihai G Netea, Bart Jan Kullberg
Candida spp. are colonizing fungi of human skin and mucosae of the gastrointestinal and genitourinary tract, present in 30-50% of healthy individuals in a population at any given moment. The host defense mechanisms prevent this commensal fungus from invading and causing disease. Loss of skin or mucosal barrier function, microbiome imbalances, or defects of immune defense mechanisms can lead to an increased susceptibility to severe mucocutaneous or invasive candidiasis. A comprehensive understanding of the immune defense against Candida is essential for developing adjunctive immunotherapy...
January 9, 2018: Journal of Fungi (Basel, Switzerland)
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