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Candida parapsilosis

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https://www.readbyqxmd.com/read/28651026/binding-of-human-plasminogen-and-high-molecular-mass-kininogen-by-cell-surface-exposed-proteins-of-candida-parapsilosis
#1
Justyna Karkowska-Kuleta, Dorota Zajac, Grazyna Bras, Oliwia Bochenska, Maria Rapala-Kozik, Andrzej Kozik
Pathogenic microbes can recruit to their cell surface human proteins that are components of important proteolytic cascades involved in coagulation, fibrinolysis and innate immune response. Once located at the bacterial or fungal surface, such deployed proteins might be utilized by pathogens to facilitate invasion and dissemination within the host organism by interfering with functionality of these systems or by exploiting specific activity of the bound enzymes. Aim of the study presented here was to characterize this phenomenon in Candida parapsilosis (Ashford) Langeron et Talice - an important causative agent of systemic fungal infections (candidiases and candidemias) in humans...
June 24, 2017: Acta Biochimica Polonica
https://www.readbyqxmd.com/read/28648496/fruits-as-the-vehicle-of-drug-resistant-pathogenic-yeasts
#2
Hsiu-Jung Lo, Sheng-Hua Tsai, Wen-Li Chu, Yin-Zhi Chen, Zi-Li Zhou, Hong-Fu Chen, Ching-Fu Lee, Yun-Liang Yang
OBJECTIVE: We investigated the diversity and drug susceptibility of pathogenic yeasts on fruit surfaces. METHOD: Fruits were purchased from supermarkets and washed with buffer. The pellets were re-suspended in medium after centrifugation. The cell suspensions were plated onto CHROMagar Candida medium. Yeasts were identified by ribosomal DNA sequencing and their drug susceptibilities were determined by broth microdilution assay. RESULTS: Of 184 isolates, comprised of 55 species, from 22 different types of fruits, 29 species, including Candida famata, Candida fermentati, Candida guilliermondii, Candida intermedia, Candida krusei, Candida orthopsilosis, Candida parapsilosis, Candida pelliculosa, Candida tropicalis, and others have been reported to cause diseases in humans...
June 22, 2017: Journal of Infection
https://www.readbyqxmd.com/read/28634471/a-chitin-binding-protein-purified-from-moringa-oleifera-seeds-presents-anticandidal-activity-by-increasing-cell-membrane-permeability-and-reactive-oxygen-species-production
#3
João X S Neto, Mirella L Pereira, Jose T A Oliveira, Lady C B Rocha-Bezerra, Tiago D P Lopes, Helen P S Costa, Daniele O B Sousa, Bruno A M Rocha, Thalles B Grangeiro, José E C Freire, Ana Cristina O Monteiro-Moreira, Marina D P Lobo, Raimunda S N Brilhante, Ilka M Vasconcelos
Candida species are opportunistic pathogens that infect immunocompromised and/or immunosuppressed patients, particularly in hospital facilities, that besides representing a significant threat to health increase the risk of mortality. Apart from echinocandins and triazoles, which are well tolerated, most of the antifungal drugs used for candidiasis treatment can cause side effects and lead to the development of resistant strains. A promising alternative to the conventional treatments is the use of plant proteins...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28630186/loss-of-c-5-sterol-desaturase-activity-results-in-increased-resistance-to-azole-and-echinocandin-antifungals-in-a-clinical-isolate-of-candida-parapsilosis
#4
Jeffrey M Rybak, C Michael Dickens, Josie E Parker, Kelly Caudle, Kayihura Manigaba, Sarah G Whaley, Andrew Nishimoto, Arturo Luna-Tapia, Sujoy Roy, Qing Zhang, Katherine S Barker, Glen E Palmer, Thomas R Sutter, Ramin Homayouni, Nathan P Wiederhold, Steven L Kelly, P David Rogers
Among emerging non-albicans Candida species, C. parapsilosis is of particular concern as a cause of nosocomial bloodstream infections in neonatal and intensive care unit patients. While fluconazole and echinocandins are considered effective treatment of such infections, recent reports of fluconazole and echinocandin resistance in C. parapsilosis indicate a growing problem. The present study describes a novel mechanism of antifungal resistance in this organism affecting the susceptibility of azole and echinocandin antifungals in a clinical isolate obtained from a patient with prosthetic valve endocarditis...
June 19, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28627478/a-glimpse-into-the-specialization-history-of-the-lipases-acyltransferases-family-of-cplip2
#5
Anne-Hélène Jan, Eric Dubreucq, Jullien Drone, Maeva Subileau
Lipases/acyltransferases homologous to CpLIP2 from Candida parapsilosis belong to the α/β hydrolase superfamily as lipase A from Moesziomyces antarcticus (Candida antarctica), and constitute a consistent phylogenetic subgroup with at least 56% identity. Lipases/acyltransferases share the phenotypic characteristic of a high acyltransfer activity even in aqueous media with very high water thermodynamic activity. Previous mutagenesis and evolution strategies have given insights into the role of key residues and protein subdomains in the reaction and substrate specificities of these enzymes...
June 13, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28622982/comparison-of-the-vitek-2-antifungal-susceptibility-system-with-etest-using-clinical-isolates-of-candida-species
#6
Wadha Alfouzan, Tahani Al-Enezi, Ebteehal AlRoomi, Vayalil Sandhya, Rachel Chandy, Zia Uddin Khan
BACKGROUND: Candida species are part of the normal human microbiota. However, in recent years, nosocomial bloodstream Candida infections have emerged as a significant problem ranking the fourth common cause of fungemia in intensive care units. Although microdilution methods are the ones recommended for susceptibility testing, they are difficult to undertake in the clinical practice. Thus, an automated commercially available test is ideal. AIMS: To compare minimum inhibitory concentrations (MICs) obtained with the recently introduced Vitek 2 yeast susceptibility system card (AST-YS01) with Etest...
June 13, 2017: Revista Iberoamericana de Micología
https://www.readbyqxmd.com/read/28609764/hemodialysis-and-kidney-transplantation-as-predisposing-conditions-to-onychomycosis
#7
Antonio M S Filho, Carlucci G Ventura, Paulo R Criado, Gilda B Del Negro, Roseli S Freitas, Olinda C Luiz, Mauro C Giudice, Elias D Neto, Gil Benard
BACKGROUND/AIM: Onychomycosis (OM) is one of the commonest superficial fungal infections. Patients undergoing hemodialysis (HD) treatment and kidney transplant recipients (KTR) are considered at risk of contracting fungal infections, but the few published data do not reach the conclusion of whether they are predisposed to OM. This study aimed to determine the prevalence and etiology of OM in these patients and to determine the antifungal susceptibility profile of the isolated fungal species...
June 14, 2017: Nephron
https://www.readbyqxmd.com/read/28603107/anti-fungal-and-anti-mycobacterial-activity-of-plants-of-nuevo-leon-mexico
#8
Blanca Alicia Alanis Garza, Joel López Arroyo, Gloria González González, Elvira Garza González, Elvira Garza González, Noemí Waksman de Torres, Ricardo Salazar Aranda
Severe fungal infections, particularly those caused by Candida spp, have increased in recent decades and are associated with an extremely high rate of morbidity and mortality. Since plants are an important source of potentially bioactive compounds, in this work the antifungal activity of the methanol extracts of 10 plants (Acacia rigidula, Buddleja cordata, Cephalanthus occidentalis, Juglans nigra, Parkinsonia aculeata, Parthenium hysterophorus, Quercus canbyi, Ricinus communis, Salvia coccinea and Teucrium bicolor) were evaluated...
January 2017: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28597967/anidulafungin-for-the-treatment-of-candidaemia-caused-by-candida-parapsilosis-analysis-of-pooled-data-from-six-prospective-clinical-studies
#9
Dimitrios P Kontoyiannis, Matteo Bassetti, Marcio Nucci, Maria Rita Capparella, Jean L Yan, Jalal Aram, Patricia A Hogan
Concerns with echinocandin use for infections caused by Candida parapsilosis complex species have driven the need for data to support echinocandin clinical efficacy in such patients. Data from six prospective studies were pooled to assess efficacy and safety of anidulafungin in patients with candidaemia caused by C. parapsilosis. Patient-level data were pooled from patients with microbiologically confirmed candidaemia due to C. parapsilosis treated with anidulafungin. Patients received a 200 mg intravenous (IV) loading dose of anidulafungin (day 1) and 100 mg daily thereafter...
June 9, 2017: Mycoses
https://www.readbyqxmd.com/read/28597394/invasive-candidiasis-in-brescia-italy-analysis-of-species-distribution-and-antifungal-susceptibilities-during-seven-years
#10
M A De Francesco, G Piccinelli, M Gelmi, F Gargiulo, G Ravizzola, G Pinsi, L Peroni, C Bonfanti, A Caruso
The aims of this study were to evaluate the epidemiology of nosocomial candidemia in a large teaching hospital in Brescia, Italy, and the in vitro antifungal susceptibility of isolates. We analyzed 196 isolates causing fungemia in patients admitted in our hospital, between January 2009 and December 2015. Strains were identified by VITEK 2 and MALDI-TOF MS. MICs were determined by Sensititre Yeast OneTM. The resistance was defined by using the revised CLSI breakpoints/epidemiological cutoff values to assign susceptibility or wild type to systemic antifungal agents...
June 8, 2017: Mycopathologia
https://www.readbyqxmd.com/read/28596548/sortase-a-mediated-crosslinked-short-chain-dehydrogenases-reductases-as-novel-biocatalysts-with-improved-thermostability-and-catalytic-efficiency
#11
Kunpeng Li, Rongzhen Zhang, Yan Xu, Zhimeng Wu, Jing Li, Xiaotian Zhou, Jiawei Jiang, Haiyan Liu, Rong Xiao
(S)-carbonyl reductase II (SCRII) from Candida parapsilosis is a short-chain alcohol dehydrogenase/reductase. It catalyses the conversion of 2-hydroxyacetophenone to (S)-1-phenyl-1,2-ethanediol with low efficiency. Sortase was reported as a molecular "stapler" for site-specific protein conjugation to strengthen or add protein functionality. Here, we describe Staphylococcus aureus sortase A-mediated crosslinking of SCRII to produce stable catalysts for efficient biotransformation. Via a native N-terminal glycine and an added GGGGSLPETGG peptide at C-terminus of SCRII, SCRII subunits were conjugated by sortase A to form crosslinked SCRII, mainly dimers and trimers...
June 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28594608/etiology-of-onychomycosis-in-patients-turkey
#12
Fatma Pelin Cengiz, Bengu Cevirgen Cemil, Nazan Emiroglu, Anılgülsel Bahalı, Dilek Biyik Ozkaya, Ozlem Su, Nahide Onsun
BACKGROUND: Onychomycosis is the chronic infection of the nails, and it is caused by dermatophytes, Candida, non- dermatophyte molds, Trichosporon genus. METHODS: A retrospective analysis of 225 cases with onychomycosis, diagnosed in a 27-month period at the Department of Dermatoveneorology, Bezmialem Vakif University in Istanbul, and confirmed with culture. RESULTS: The age of patients ranged from 2 to 87 years (41.59 ± 17.61) and females were more commonly affected (120 cases, 53...
June 8, 2017: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/28583673/high-level-de-novo-biosynthesis-of-arbutin-in-engineered-escherichia-coli
#13
Xiaolin Shen, Jia Wang, Jian Wang, Zhenya Chen, Qipeng Yuan, Yajun Yan
Arbutin is a hydroquinone glucoside compound existing in various plants. It is widely used in pharmaceutical and cosmetic industries owing to its well-known skin-lightening property as well as anti-oxidant, anti-microbial, and anti-inflammatory activities. Currently, arbutin is usually produced by plant extraction or enzymatic processes, which suffer from low product yield and expensive processing cost. In this work, we established an artificial pathway in Escherichia coli for high-level production of arbutin from simple carbon sources...
June 2, 2017: Metabolic Engineering
https://www.readbyqxmd.com/read/28572725/synthesis-characterization-and-in-vitro-activity-against-candida-spp-of-fluconazole-encapsulated-on-cationic-and-conventional-nanoparticles-of-poly-lactic-co-glycolic-acid
#14
Nicolás Gómez-Sequeda, Rodrigo Torres, Claudia Ortiz
In this study, nanoparticles (NPs) of poly(lactic-co-glycolic acid) (PLGA) loaded with fluconazole (FLZ) and FLZ-NPs coated with the cationic polymer polyethylenimine (PEI) (FLZ-NP-PEI) were synthetized in order to improve antimycotic activity against four strains of Candida spp. of clinical relevance. FLZ-NPs and FLZ-NP-PEI were synthesized by double emulsion solvent-diffusion (DES-D) and characterized. Minimum inhibitory concentration (MIC50) and minimum fungicide concentration (MFC) were determined in vitro by culturing Candida strains in the presence of these nanocompounds...
2017: Nanotechnology, Science and Applications
https://www.readbyqxmd.com/read/28571137/auxanographic-carbohydrate-assimilation-method-for-large-scale-yeast-identification
#15
Suganthi Martena Devadas, Mamatha Ballal, Peralam Yegneswaran Prakash, Manjunath H Hande, Geetha V Bhat, Vinitha Mohandas
INTRODUCTION: The auxanographic carbohydrate assimilation had been an important method for differentiation of yeasts. Prevailing methods described in the literature for carbohydrate assimilation has limited scope for use in large scale yeast identification. AIM: To optimize the large scale auxanographic carbohydrate assimilation method for yeast identification. MATERIALS AND METHODS: A modified auxanographic carbohydrate assimilation method was developed and a total of 35 isolates of Candida species comprising of four ATCC (American Type Culture Collection) Candida strains (Candida albicans ATCC 90028, Candida tropicalis ATCC 90018, Candida parapsilosis ATCC 750, Candida krusei ATCC 6258) and 31 clinical isolates of Candida tropicalis (n=13), Candida krusei (n=7), Candida glabrata (n=3), Candida kefyr (n=3), Candida albicans (n=5) were validated...
April 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28544837/candida-endocarditis-a-review-of-twelve-episodes-in-eleven-patients
#16
Tatjana Lejko Zupanc, Mateja Logar
BACKGROUND: Candida spp. are a rare but important cause of infective endocarditis. The study aim was to describe pertinent clinical data on consecutive patients with Candida endocarditis treated at a tertiary referral center between 1984 and 2013. METHODS: A retrospective search of the authors' endocarditis database was performed and the medical records of patients with confirmed Candida endocarditis were reviewed. Important data relating to demographics, medical history and clinical data, as well as information on outcome and treatment, were extracted...
January 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28540147/candida-prosthetic-joint-infection-a-review-of-treatment-methods
#17
REVIEW
Fernando Cobo, Javier Rodríguez-Granger, Antonio Sampedro, Luis Aliaga-Martínez, José María Navarro-Marí
Fungal microorganisms are still a rare cause of bone and joint infections. We report a new case of knee prosthetic joint infection due to Candida albicans in a patient with a previous two-stage right knee arthroplasty for septic arthritis due to S. epidermidis occurred several months ago. Moreover, the treatment in 76 cases of Candida prosthetic joint infection has been discussed. Forty patients were female and mean age at diagnosis was 65.7 (± SD 18) yrs. No risk factors for candidal infection were found in 25 patients...
2017: J Bone Jt Infect
https://www.readbyqxmd.com/read/28527136/factors-influencing-non-albicans-candidemia-a-case-case-control-study
#18
Diamantis P Kofteridis, Antonis Valachis, Dimitra Dimopoulou, Angeliki M Andrianaki, Athanasia Christidou, Sofia Maraki, Nikolaos A Spernovasilis, George Samonis
The study identified factors predisposing to non-albicans candidemia with special interest to prior antimicrobial treatment. A retrospective, case-case-control study was performed at the University Hospital of Heraklion, Greece, from November 2007 through September 2011 including adult patients. The study had three groups. The first included 58 patients with non-albicans candidemia, the second 48 with C. albicans candidemia, while the third (control) 104 without candidemia. Each of the two candidemia groups was compared with the control using multivariate logistic regression model...
May 19, 2017: Mycopathologia
https://www.readbyqxmd.com/read/28523422/usefulness-of-the-non-conventional-caenorhabditis-elegans-model-to-assess-candida-virulence
#19
Marcelo Ortega-Riveros, Iker De-la-Pinta, Cristina Marcos-Arias, Guillermo Ezpeleta, Guillermo Quindós, Elena Eraso
Invasive candidiasis is caused mainly by Candida albicans, but other Candida species have increasing etiologies. These species show different virulence and susceptibility levels to antifungal drugs. The aims of this study were to evaluate the usefulness of the non-conventional model Caenorhabditis elegans to assess the in vivo virulence of seven different Candida species and to compare the virulence in vivo with the in vitro production of proteinases and phospholipases, hemolytic activity and biofilm development capacity...
May 18, 2017: Mycopathologia
https://www.readbyqxmd.com/read/28511380/fungal-profile-of-vulvovaginal-candidiasis-in-a-tertiary-care-hospital
#20
Krishnapriya Kalaiarasan, Rakesh Singh, Latha Chaturvedula
INTRODUCTION: Vulvovaginal Candidiasis (VVC) is a common medical health problem of adult women. It is most commonly caused by Candida albicans. But there is a change in fungal profile. Sabouraud's Dextrose Agar (SDA) is the most common culture medium used where mixed fungal infection may be missed. It can be detected easily by using chromogenic culture medium. AIM: To know the fungal profile of vulvovaginal candidiasis using Candida CHROMagar and antifungal susceptibility pattern in patients attending tertiary care hospital...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
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