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Candida parapsilosis

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https://www.readbyqxmd.com/read/28333259/predisposing-factors-and-outcome-of-uncommon-yeast-species-related-fungaemia-based-on-an-exhaustive-surveillance-programme-2002-14
#1
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/28326154/probiotic-lactobacillus-reuteri-has-antifungal-effects-on-oral-candida-species-in-vitro
#2
Mette Rose Jørgensen, Camilla Kragelund, Peter Østrup Jensen, Mette Kirstine Keller, Svante Twetman
Background: An alternative approach for managing Candida infections in the oral cavity by modulating the oral microbiota with probiotic bacteria has been proposed. Objective: The aim was to investigate the antifungal potential of the probiotic bacterium Lactobacillus reuteri (DSM 17938 and ATCC PTA 5289) against six oral Candida species (C. albicans, C. glabrata, C. krusei, C. tropicalis, C. dubliniensis, and C. parapsilosis). Design: The lactobacilli were tested for their ability to co-aggregate with and inhibit the growth of the yeasts assessed by spectrophotometry and the agar overlay inhibition assay...
2017: Journal of Oral Microbiology
https://www.readbyqxmd.com/read/28321957/activity-of-exogenous-tyrosol-in-combination-with-caspofungin-and-micafungin-against-candida-parapsilosis-sessile-cells
#3
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/28321466/the-risk-and-clinical-outcome-of-candidemia-depending-on-underlying-malignancy
#4
Olivier Lortholary, Charlotte Renaudat, Karine Sitbon, Marie Desnos-Ollivier, Stéphane Bretagne, Françoise Dromer
PURPOSE: To assess the risk factors and outcomes associated with fungemia caused by the six most commonly occurring Candida species in patients with and without malignancies. METHODS: Analysis of the episodes of fungemia due to common Candida species in adults, based on an active hospital-based surveillance program (Paris area, France, 2002 to 2014). RESULTS: Of the 3417 patients (3666 isolates), 1164 (34.1%) had a solid tumor (45.7% digestive tract) and 586 (17...
March 20, 2017: Intensive Care Medicine
https://www.readbyqxmd.com/read/28318900/epidemiological-and-mycological-characteristics-of-candidemia-in-iran-a-systematic-review-and-meta-analysis
#5
REVIEW
A Vaezi, H Fakhim, S Khodavaisy, A Alizadeh, M Nazeri, A Soleimani, T Boekhout, H Badali
To date, there has been no comprehensive review of the epidemiology, risk factors, species distribution, and outcomes of candidemia in Iran. This study aimed to perform a systematic review and meta-analysis of all reported candidemia cases in Iran until December 2015. The review process occurred in three steps, namely a literature search, data extraction and statistical analyses. After a comprehensive literature search, we identified 55 cases. The mean age of patients was 46.80±24.30 years (range 1-81 years)...
March 16, 2017: Journal de Mycologie Médicale
https://www.readbyqxmd.com/read/28296967/the-combined-rapid-detection-and-species-level-identification-of-yeasts-in-simulated-blood-culture-using-a-colorimetric-sensor-array
#6
Nabin K Shrestha, Sung H Lim, Deborah A Wilson, Ana Victoria SalasVargas, Yair S Churi, Paul A Rhodes, Peter J Mazzone, Gary W Procop
BACKGROUND: A colorimetric sensor array (CSA) has been demonstrated to rapidly detect and identify bacteria growing in blood cultures by obtaining a species-specific "fingerprint" of the volatile organic compounds (VOCs) produced during growth. This capability has been demonstrated in prokaryotes, but has not been reported for eukaryotic cells growing in culture. The purpose of this study was to explore if a disposable CSA could differentially identify 7 species of pathogenic yeasts growing in blood culture...
2017: PloS One
https://www.readbyqxmd.com/read/28273967/co-infection-of-candidaparapsilosis-in-a-patient-of-pulmonary-actinomycosis-a-rare-case-report
#7
Purbasha Ghosh, Indrajit Gupta, Mousumi Kar, Poulami Nandi, Prosenjit Naskar
The diagnosis of pulmonary actinomycosis is difficult and less than 10% of cases are diagnosed at the initial presentation. Actinomycosis is always poly-microbial flora infection in human. On the other hand, Candida parapsilosis is an emerging fungal pathogen especially in immuno-compromised patients. Combined bacterial-fungal infection increases frequency and severity of the disease. This report is a case of a Candida parapsilosis co-infection in a 23-year-old male patient having pulmonary actinomycosis. This thereby could guide the clinicians towards an appropriate therapy...
January 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28271321/clinical-characteristics-and-predictors-of-mortality-in-cirrhotic-patients-with-candidemia-and-intra-abdominal-candidiasis-a-multicenter-study
#8
Matteo Bassetti, Maddalena Peghin, Alessia Carnelutti, Elda Righi, Maria Merelli, Filippo Ansaldi, Cecilia Trucchi, Cristiano Alicino, Assunta Sartor, Pierluigi Toniutto, Joost Wauters, Wim Laleman, Carlo Tascini, Francesco Menichetti, Roberto Luzzati, Pierluigi Brugnaro, Alessio Mesini, Stefania Raviolo, Francesco G De Rosa, Leonel Lagunes, Jordi Rello, George Dimopoulos, Arnaldo L Colombo, Marcio Nucci, Antonio Vena, Emilio Bouza, Patricia Muñoz, Mario Tumbarello, Raffaella Losito, Ignacio Martin-Loeches, Claudio Viscoli
PURPOSE: The aim of the study was to describe the characteristics of cirrhotic patients with candidemia and intra-abdominal candidiasis (IAC) and to evaluate the risk factors associated with 30-day mortality. METHODS: A multicenter multinational retrospective study including all consecutive episodes of candidemia and IAC in adult patients with liver cirrhosis in 14 European hospitals during the period 2011-2013 was performed. RESULTS: A total of 241 episodes (169 candidemia, 72 IAC) were included...
March 7, 2017: Intensive Care Medicine
https://www.readbyqxmd.com/read/28260588/utilization-of-size-polymorphism-in-its1-and-its2-regions-for-identification-of-pathogenic-yeast-species
#9
Hossein Khodadadi, Ladan Karimi, Nilufar Jalalizand, Hassan Adin, Hossein Mirhendi
PURPOSE: 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. METHODOLOGY: 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...
March 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28258600/enlightening-the-role-of-subdomains-in-the-catalytic-behavior-of-lipases-acyltransferases-homologous-to-cplip2-through-rational-design-of-chimeric-enzymes
#10
Anne-Hélène Jan, Eric Dubreucq, Maeva Subileau
The lipases/acyltransferases homologous to CpLIP2 of Candida parapsilosis catalyze efficiently acyltransfer reactions in lipid/water media with high water activity (aW > 0.9). The characterization of two new enzymes of this family, CduLAc from Candida dubliniensis and CalLAc8 from Candida albicans, was performed. Despite their 82% identity, these 2 enzymes have significant differences in their catalytic behavior. To understand the role played by the different subdomains of these proteins (the main core, the cap and the C-term flap), chimeric enzymes were designed with rational exchanges of cap and C-term flap, between CduLAc and CalLAc8...
March 4, 2017: Chembiochem: a European Journal of Chemical Biology
https://www.readbyqxmd.com/read/28257640/risk-factors-for-candida-parapsilosis-bloodstream-infection-in-a-neonatal-intensive-care-unit-a-case-control-study
#11
Carmine Garzillo, Maria Bagattini, Lidija Bogdanović, Anna Di Popolo, Vita Dora Iula, Maria Rosaria Catania, Francesco Raimondi, Maria Triassi, Raffaele Zarrilli
BACKGROUND: Candida parapsilosis is increasingly responsible for invasive candidiasis in neonates. This study investigates phenotypic and genotypic features of C. parapsilosis microbial isolates and underlying clinical conditions associated with acquisition of C. parapsilosis in a neonatal intensive care unit (NICU) in Italy. METHODS: Identification of C. parapsilosis was performed by VITEK® 2 and MALDI TOF and confirmed by analysis of internal transcribed spacer ribosomal DNA sequences...
January 19, 2017: Italian Journal of Pediatrics
https://www.readbyqxmd.com/read/28250661/antifungal-activity-of-hydroalcoholic-extract-of-chrysobalanus-icaco-against-oral-clinical-isolates-of-candida-species
#12
João Paulo Bastos Silva, Ana Regina Maués Noronha Peres, Thiago Portal Paixão, Andressa Santa Brígida Silva, Ana Cristina Baetas, Wagner Luiz Ramos Barbosa, Marta Chagas Monteiro, Marcieni Ataíde Andrade
BACKGROUND: Chrysobalanus icaco is a medicinal plant commonly used to treat fungal infections in Brazilian Amazonian region. OBJECTIVE: This work aimed to evaluate the antifungal activity of the hydroalcoholic extract of C. icaco (HECi) against oral clinical isolates of Candida spp. and to determine the pharmacognostic parameters of the herbal drug and the phytochemical characteristics of HECi. MATERIALS AND METHODS: The pharmacognostic characterization was performed using pharmacopoeial techniques...
January 2017: Pharmacognosy Research
https://www.readbyqxmd.com/read/28250619/studying-the-prevalence-species-distribution-and-detection-of-in-vitro-production-of-phospholipase-from-candida-isolated-from-cases-of-invasive-candidiasis
#13
Yukti Sharma, Susheel Kumar Chumber, Mandeep Kaur
BACKGROUND AND AIM: Candida spp. have emerged as successful pathogens both in invasive and mucosal infections. C. albicans is the sixth cause of most common nosocomial infections according to studies by the Centers for Disease Control and Prevention. A shift toward non-albicans species has been reported. There is a dearth of knowledge regarding the virulence factors of Candida, especially from this part of India. The aim was to study the prevalence of Candida, speciate, and determine antifungal sensitivity along with the detection of in vitro production of phospholipases in 100 Candida isolates...
January 2017: Journal of Global Infectious Diseases
https://www.readbyqxmd.com/read/28243985/efficient-synthesis-of-s-n-boc-3-hydroxypiperidine-using-an-r-specific-carbonyl-reductase-from-candida-parapsilosis
#14
Jingjing Chen, Ming Yan, Lin Xu
(S)-N-Boc-3-hydroxypiperidine (S-NBHP) is a critical chiral intermediate in the synthesis of pharmaceuticals, including ibrutinib, the active pharmaceutical ingredient of the new drug Imbruvica approved for the treatment of lymphoma. An (R)-specific carbonyl reductase from Candida parapsilosis (CprCR, also known as R-specific alcohol dehydrogenase) that catalyzes asymmetric reduction to produce (S)-N-Boc-3-hydroxypiperidine (S-NBHP) was identified for the first time. When co-expressed with a glucose dehydrogenase from Bacillus megaterium in Escherichia coli Rosetta (DE3), recombinant crude enzyme exhibited an activity of 9 U/mg with N-Boc-3-piperidone as the substrate and 12 U/mg with glucose as the substrate...
March 2017: World Journal of Microbiology & Biotechnology
https://www.readbyqxmd.com/read/28236530/comparison-of-enzymatic-activities-in-different-candida-species-isolated-from-women-with-vulvovaginitis
#15
M Fatahinia, M Halvaeezadeh, A Rezaei-Matehkolaei
INTRODUCTION: Comparing the activities of secreted enzymes in different fungal species can improve our understanding of their pathogenic role. Secretion of various enzymes by Candida species has been considered for determination of their virulence in different Candida infections including vulvovaginitis. AIMS: The aim of this study was to determine and compare the activity of secreted enzymes in Candidia strains isolated from women suspected to vulvovaginal candidiasis (VVC) and referred to some health centers in Khuzestan, Southwestern Iran...
February 21, 2017: Journal de Mycologie Médicale
https://www.readbyqxmd.com/read/28225905/comparison-of-four-molecular-approaches-to-identify-candida-parapsilosis-complex-species
#16
Leonardo Silva Barbedo, Maria Helena Galdino Figueiredo-Carvalho, Mauro de Medeiros Muniz, Rosely Maria Zancopé-Oliveira
Since the description of Candida orthopsilosis and C. metapsilosis in 2005, several methods have been proposed to identify and differentiate these species from C. parapsilosis sensu stricto. Species-specific uniplex polymerase chain reaction (PCR) was performed and compared with sequencing of the D1/D2 region of the LSU 28S rDNA gene, microsatellite typing of C. parapsilosis sensu stricto, and PCR-restriction fragment length polymorphism patterns in the ITS1-5.8S-ITS2 region of the rDNA gene. There was agreement between results of testing of 98 clinical isolates with the four PCR-based methods, with 59 isolates identified as C...
March 2017: Memórias do Instituto Oswaldo Cruz
https://www.readbyqxmd.com/read/28225899/comparison-of-four-molecular-approaches-to-identify-candida-parapsilosis-complex-species
#17
Leonardo Silva Barbedo, Maria Helena Galdino Figueiredo-Carvalho, Mauro de Medeiros Muniz, Rosely Maria Zancopé-Oliveira
Since the description of Candida orthopsilosis and C. metapsilosis in 2005, several methods have been proposed to identify and differentiate these species from C. parapsilosis sensu stricto. Species-specific uniplex polymerase chain reaction (PCR) was performed and compared with sequencing of the D1/D2 region of the LSU 28S rDNA gene, microsatellite typing of C. parapsilosis sensu stricto, and PCR-restriction fragment length polymorphism patterns in the ITS1-5.8S-ITS2 region of the rDNA gene. There was agreement between results of testing of 98 clinical isolates with the four PCR-based methods, with 59 isolates identified as C...
February 16, 2017: Memórias do Instituto Oswaldo Cruz
https://www.readbyqxmd.com/read/28225025/specific-pathways-mediating-inflammasome-activation-by-candida-parapsilosis
#18
Adél Tóth, Erik Zajta, Katalin Csonka, Csaba Vágvölgyi, Mihai G Netea, Attila Gácser
Candida albicans and C. parapsilosis are human pathogens causing severe infections. The NLRP3 inflammasome plays a crucial role in host defence against C. albicans, but it has been previously unknown whether C. parapsilosis activates this complex. Here we show that C. parapsilosis induces caspase-1 activation and interleukin-1β (IL-1β) secretion in THP-1, as well as primary, human macrophages. IL-1β secretion was dependent on NLRP3, K(+)-efflux, TLR4, IRAK, Syk, caspase-1, caspase-8 and NADPH-oxidase. Importantly, while C...
February 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28222399/improved-yeast-delivery-of-fluconazole-with-a-nanostructured-lipid-carrier-system
#19
Hamid Reza Kelidari, Maryam Moazeni, Roghayeh Babaei, Majid Saeedi, Jafar Akbari, Parisa Islami Parkoohi, Mojtaba Nabili, Atefeh Abdollahi Gohar, Katayoun Morteza-Semnani, Ali Nokhodchi
Despite the growing trends in the number of patients at risk for invasive fungal infections, management with current antifungal agents results in complications due to changes in the epidemiology and drug susceptibility of invasive fungal infections. In the present research fluconazole-loaded nanostructured lipid carriers were prepared using probe ultrasonication techniques and investigated the efficacy of the optimal formulation on a large number of Candida species. The morphology of the obtained nanostructured lipid carriers was characterized by transmission-electron microscopy...
February 17, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28214273/candidaemia-due-to-candida-parapsilosis-species-complex-at-a-hospital-in-brazil-clinical-characteristics-and-antifungal-susceptibility-profile
#20
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
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