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Candida parapsilosis

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https://www.readbyqxmd.com/read/28214273/candidaemia-due-to-candida-parapsilosis-species-complex-at-a-hospital-in-brazil-clinical-characteristics-and-antifungal-susceptibility-profile
#1
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
https://www.readbyqxmd.com/read/28213809/the-correlation-between-biofilm-production-and-catheter-related-blood-stream-infections-sustained-by-candida-a-case-control-study
#2
Grazia Brunetti, Valeria Visconti, Maria Cristina Ghezzi, Alessandra Giordano, Giammarco Raponi
Biofilm forming capacity of yeasts colonizing the intravenous devices is considered a key factor involved in the pathogenesis of Candida catheter-related bloodstream infections (CCRBSI). The biofilm production of strains of Candida spp. isolated both from the CVC and from the blood of patients with CCRBSI was compared to that of strains isolated from patients not having CCRBSI. Results, expressed in terms of Biofilm Index (BI), revealed that biofilm-producing strains were isolated in the CCRBSI group with a frequency significantly higher than in the non-CCRBSI group (χ(2) = 4...
February 18, 2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28204594/candida-parapsilosis-in-domestic-laundry-machines
#3
Aylin Döğen, Hafize Sav, Serpil Gonca, Engin Kaplan, Macit Ilkit, Monika Novak Babič, Nina Gunde-Cimerman, G Sybren de Hoog
No abstract text is available yet for this article.
February 16, 2017: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
https://www.readbyqxmd.com/read/28198976/role-of-candida-species-from-hiv-infected-children-in-enamel-caries-lesions-an-in-vitro-study
#4
Senda Charone, Maristela Barbosa Portela, Karol de Oliveira Martins, Rosangela Maria Soares, Gloria Fernanda Castro
Objectives: This study analyzed the capacity of Candida spp. from dental biofilm of HIV infected (HIV+) children to demineralize primary molar enamel in vitro by Transversal Microhardness (TMH), Polarized Light Microscopy (PLM) and the quantity of calcium ions (Ca2+) released from the enamel. Material and Methods: Candida spp. samples were isolated from the supragingival biofilm of HIV+ children. A hundred and forty (140) enamel blocks were randomly assigned to six groups: biofilm formed by C...
January 2017: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/28198656/fungicidal-activity-and-pk-pd-of-caspofungin-as-tools-to-guide-antifungal-therapy-in-a-fluconazole-resistant-c-parapsilosis-candidemia
#5
Carlo Tascini, Emanuela Sozio, Antonello Di Paolo, Giancarlo Tintori, Alessandro Leonildi, Giacomo Bertolino, Franco Carmassi, Enrico Tagliaferri, Francesco Menichetti, Francesco Barchiesi
Candida parapsilosis may be responsible for bloodstream infections (BSI) and it is characterised by an increased incidence of fluconazole resistance. A 75-year old woman with severe comorbidities received the insertion of a peripherally inserted central venous catheter. Fluconazole did not prevent a C. parapsilosis BSI hence caspofungin was started after a nephrotoxic first-line treatment with amphotericin B. The ratio of peak plasma concentration over the minimum inhibitory concentration (Cmax/MIC) was adopted to maximise efficacy of caspofungin...
February 15, 2017: Journal of Chemotherapy
https://www.readbyqxmd.com/read/28196695/impact-of-erg3-mutations-and-expression-of-ergosterol-genes-controlled-by-upc2-and-ndt80-in-candida-parapsilosis-azole-resistance
#6
Joana Branco, Mihaela Ola, Raquel M Silva, Elizangela Fonseca, Nuno C Gomes, Cláudia Martins-Cruz, Ana P Silva, Ana Silva-Dias, Cidália Pina-Vaz, Claire Erraught, Lorraine Brennan, Acácio Gonçalves Rodrigues, Geraldine Butler, Isabel M Miranda
OBJECTIVES: C. parapsilosis is a health care related fungal pathogen particularly common among immunocompromised patients. Our understanding of antifungal resistance mechanisms in C. parapsilosis remains very limited. We previously described an azole-resistant strain of C. parapsilosis (BC014RPSC), obtained following exposure in vitro to posaconazole. Resistance was associated with overexpression of ergosterol biosynthetic genes (ERG genes), together with the transcription factors UPC2 (CPAR2-207280) and NDT80 (CPAR2-213640)...
February 11, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28196391/pentoxifylline-treatment-of-very-low-birth-weight-neonates-with-nosocomial-sepsis
#7
Şahin Hamilçıkan, Emrah Can, Övgü Büke, Meltem Erol, Özlem Bostan Gayret
Objective The objective of this study was to assess the result of intravenous pentoxifylline as an adjunct to antibiotic therapy on mortality and morbidity in very low birth weight (VLBW) preterm neonates with nosocomial sepsis. Methods For the 18 VLBW preterm neonates, as an adjunct therapy to antibiotics regimens, pentoxifylline (5 mg/kg/h for 6 hours) was administered to premature infants with sepsis on 3 successive days. Clinical and laboratory parameters were recorded before and after treatment. Results Following pentoxifylline therapy, the immature-to-total neutrophil ratio and C-reactive protein (CRP) levels were significantly decreased, while the blood pH and base excess were significantly increased (p < 0...
February 14, 2017: American Journal of Perinatology
https://www.readbyqxmd.com/read/28176517/regulation-of-erg3-erg6-and-erg11-genes-in-antifungal-resistant-isolates-of-candida-parapsilosis
#8
Ensieh Lotfali, Ali Ghajari, Parivash Kordbacheh, Farideh Zaini, Hossein Mirhendi, Rasoul Mohammadi, Fatemeh Noorbakhsh, Sassan Rezaie
Background: Candida parapsilosis is one of the five common strains of yeasts involved in invasive candidiasis. The expression analysis of sterol biosynthesis pathway genes, which are associated with resistance, can assist the better understanding of antifungal resistance mechanisms. Method: The antifungal susceptibility of 120 clinical C. parapsilosis isolates was examined. The changes in the gene expression related to resistance were analyzed. Results: Eight strains were resistant to fluconazole (FLC), itraconazole (ITC), and amphotericin B (AMB)...
8, 2017: Iranian Biomedical Journal
https://www.readbyqxmd.com/read/28159413/broad-spectrum-anti-infective-properties-of-benzisothiazolones-and-the-parallels-in-their-anti-bacterial-and-anti-fungal-effects
#9
P Gopinath, R K Yadav, P K Shukla, K Srivastava, S K Puri, K M Muraleedharan
Various mono- and bis-benzisothiazolone derivatives were synthesized and screened against different strains of bacteria and fungi in order to understand the effect of multiple electrophilic sulfur atoms and substitution pattern in the immediate vicinity of reactive sulfur. Staphyllococcus aureus-ATCC 7000699, MRSA and S. aureus-ATCC 29213 (Quality Control strain) were more susceptible to this class of compounds, and the most potent derivative 1.15 had MIC50 of 0.4μg/mL (cf. Gentamicin=0.78μg/mL). CLogP value, optimally in the range of 2...
January 12, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28154488/antifungal-activity-of-lactic-acid-bacteria-strains-isolated-from-natural-honey-against-pathogenic-candida-species
#10
Bulgasem Y Bulgasem, Mohd Nizam Lani, Zaiton Hassan, Wan Mohtar Wan Yusoff, Sumaya G Fnaish
The role of lactic acid bacteria (LAB) in honey as antifungal activity has received little attention and their mechanism of inhibitory of fungi is not fully understood. In this study, LAB were isolated from honey samples from Malaysia, Libya, Saudi Arabia, and Yemen. Twenty-five isolates were confirmed LAB by catalase test and Gram staining, and were screened for antifungal activity. Four LAB showed inhibitory activity against Candida spp. using the dual agar overlay method. And they were identified as Lactobacillus plantarum HS isolated from Al-Seder honey, Lactobacillus curvatus HH isolated from Al-Hanon honey, Pediococcus acidilactici HC isolated from Tualang honey and Pediococcus pentosaceus HM isolated from Al-Maray honey by the 16S rDNA sequence...
December 2016: Mycobiology
https://www.readbyqxmd.com/read/28144840/population-pharmacokinetic-model-and-pharmacokinetic-target-attainment-of-micafungin-in-intensive-care-unit-patients
#11
Lisa C Martial, Rob Ter Heine, Jeroen A Schouten, Nicole G Hunfeld, Henk J van Leeuwen, Paul E Verweij, Dylan W de Lange, Peter Pickkers, Roger J Brüggemann
OBJECTIVE: To study the pharmacokinetics of micafungin in intensive care patients and assess pharmacokinetic (PK) target attainment for various dosing strategies. METHODS: Micafungin PK data from 20 intensive care unit patients were available. A population-PK model was developed. Various dosing regimens were simulated: licensed regimens (I) 100 mg daily; (II) 100 mg daily with 200 mg from day 5; and adapted regimens 200 mg on day 1 followed by (III) 100 mg daily; (IV) 150 mg daily; and (V) 200 mg daily...
January 31, 2017: Clinical Pharmacokinetics
https://www.readbyqxmd.com/read/28139856/epidemiological-investigation-of-candida-species-causing-bloodstream-infection-in-paediatric-small-bowel-transplant-recipients
#12
Mallory J Suhr, João Carlos Gomes-Neto, Nabaraj Banjara, Diana F Florescu, David F Mercer, Peter C Iwen, Heather E Hallen-Adams
Small bowel transplantation (SBT) can be a life-saving medical procedure. However, these recipients experience high risk of bloodstream infections caused by Candida. This research aims to characterise the SBT recipient gut microbiota over time following transplantation and investigate the epidemiology of candidaemia in seven paediatric patients. Candida species from the recipients' ileum and bloodstream were identified by internal transcribed spacer sequence and distinguished to strain by multilocus sequence typing and randomly amplified polymorphic DNA...
January 31, 2017: Mycoses
https://www.readbyqxmd.com/read/28138369/distribution-and-drug-susceptibility-of-candida-spp-associated-with-female-genital-tract-infection-chongqing-china
#13
Xiaodong Luo, Xiaojing Dong, Zhi Pen
BACKGROUND: Vulvovaginal candidiasis is defined as vulvovaginitis associated with vaginal carriage of Candida spp. and is a common problem with a high rate of morbidity. OBJECTIVES: To investigate the distribution of Candida spp. and evaluate the corresponding antifungal susceptibility in women with genital tract infection in Chongqing, southwestern China. PATIENTS AND METHODS: Samples (n = 2.129) were obtained from female patients with symptoms of genital tract infection...
October 2016: Jundishapur Journal of Microbiology
https://www.readbyqxmd.com/read/28124963/-evaluation-of-pna-fish-method-for-direct-identification-of-candida-species-in-blood-culture-samples-and-its-potential-impact-on-guidance-of-antifungal-therapy
#14
Özlem Doğan, Ahmet Çağkan İnkaya, Dolunay Gülmez, Ömrüm Uzun, Murat Akova, Sevtap Arıkan Akdağlı
Early antifungal therapy has a major influence on survival in candidemia. Rapid identification of the species has importance for the treatment, prediction of the species-specific primary resistance and variable antifungal susceptibility. Recently, molecular-based methods attempt to reduce the time between the positive signal of a blood culture and identification of the fungus. PNA-FISH (Peptide nucleic acid fluorescence in situ hybridization) assay distinguishes a number of frequently isolated Candida species in groups following the growth in blood culture...
October 2016: Mikrobiyoloji Bülteni
https://www.readbyqxmd.com/read/28124220/in-vitro-antifungal-susceptibility-of-oral-candida-isolates-from-patients-suffering-from-caries-and-chronic-periodontitis
#15
Janire De-la-Torre, María Esther Ortiz-Samperio, Cristina Marcos-Arias, Xabier Marichalar-Mendia, Elena Eraso, María Ángeles Echebarria-Goicouria, José Manuel Aguirre-Urizar, Guillermo Quindós
Caries and chronic periodontitis are common oral diseases where a higher Candida colonization is reported. Antifungal agents could be adjuvant drugs for the therapy of both clinical conditions. The aim of the current study has been to evaluate the in vitro activities of conventional and new antifungal drugs against oral Candida isolates from patients suffering from caries and/or chronic periodontitis. In vitro activities of amphotericin B, fluconazole, itraconazole, miconazole, nystatin, posaconazole and voriconazole against 126 oral Candida isolates (75 Candida albicans, 18 Candida parapsilosis, 11 Candida dubliniensis, six Candida guilliermondii, five Candida lipolytica, five Candida glabrata, four Candida tropicalis and two Candida krusei) from 61 patients were tested by the CLSI M27-A3 method...
January 25, 2017: Mycopathologia
https://www.readbyqxmd.com/read/28115353/in-vitro-antifungal-susceptibility-testing-of-candida-isolates-with-the-eucast-methodology
#16
J Meletiadis, I Curfs-Breuker, J F Meis, J W Mouton
The in vitro susceptibility of 1119 molecularly identified clinical Candida isolates against 8 antifungal drugs was determined using the EUCAST microdilution method. A new simple, objective and mathematically solid method for ECOFF determination was developed by derivatizing the MIC distribution and determining a dECOFF as the highest MIC with the maximum second derivative giving similar results (95% agreement within 1 dilution) with the "eyeball" method. Overall, low non-wild type/resistant rates were found with the highest found for azoles with C...
January 23, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28115352/clinical-and-microbiological-characteristics-of-breakthrough-candidemia-in-allogeneic-hematopoietic-stem-cell-transplant-recipients-in-a-japanese-hospital
#17
Muneyoshi Kimura, Hideki Araoka, Hisashi Yamamoto, Yuki Asano-Mori, Shigeki Nakamura, Satoshi Yamagoe, Hideaki Ohno, Yoshitsugu Miyazaki, Masahiro Abe, Mitsuhiro Yuasa, Daisuke Kaji, Kosei Kageyama, Aya Nishida, Kazuya Ishiwata, Shinsuke Takagi, Go Yamamoto, Naoyuki Uchida, Koji Izutsu, Atsushi Wake, Shuichi Taniguchi, Akiko Yoneyama
The available data focused on breakthrough candidemia (BC) in allogeneic hematopoietic stem cell transplant (allo-HSCT) recipients were rare. BC has been defined as candidemia that develops on being administered antifungal agents (AAs). Medical and microbiological records of the recipients who had received allo-HSCT between December 2008 and December 2014 were reviewed. Out of 768 allo-HSCT cases, 26 developed BC. Among the 26 causative strains, 22 strains were stored and identified by sequencing. The following species were isolated: C...
January 23, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28111598/the-mpeg-pcl-copolymer-for-selective-fermentation-of-staphylococcus-lugdunensis-against-candida-parapsilosis-in-the-human-microbiome
#18
Ming-Shan Kao, Yanhan Wang, Shinta Marito, Stephen Huang, Wan-Zhen Lin, Jon A Gangoiti, Bruce A Barshop, Choi Hyun, Woan-Ruah Lee, James A Sanford, Richard L Gallo, Yuping Ran, Wan-Tzu Chen, Chun-Jen Huang, Ming-Fa Hsieh, Chun-Ming Huang
Many human skin diseases, such as seborrheic dermatitis, potentially occur due to the over-growth of fungi. It remains a challenge to develop fungicides with a lower risk of generating resistant fungi and non-specifically killing commensal microbes. Our probiotic approaches using a selective fermentation initiator of skin commensal bacteria, fermentation metabolites or their derivatives provide novel therapeutics to rein in the over-growth of fungi. Staphylococcus lugdunensis (S. lugdunensis) bacteria and Candida parapsilosis (C...
August 2016: Journal of microbial & biochemical technology
https://www.readbyqxmd.com/read/28108144/postmortem-in-vitro-ethanol-production-it-could-be-more-common-than-we-think
#19
Maria José Quintas, Pedro Costa, Paula Melo, André Castro, João Miguel Franco, Helena M Teixeira
The blood alcohol concentration (BAC) is the most frequent determination in a Forensic Toxicology Laboratory. Despite its apparent simplicity, the results interpretation can be complex and always have relevant social and legal implications, particularly in postmortem analysis. In the present report we describe the case of a 55-year-old male with an apparent natural death by myocardial infarction, whose initial BAC was 0.18g/L but, in repeated determinations prompted by discrepancies observed in the first two, it rapidly increased to 0...
January 5, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28101934/detection-of-neonatal-unit-clusters-of-candida-parapsilosis-fungaemia-by-microsatellite-genotyping-results-from-laboratory-based-sentinel-surveillance-south-africa-2009-2010
#20
Rindidzani E Magobo, Serisha D Naicker, Jeannette Wadula, Maphoshane Nchabeleng, Yacoob Coovadia, Anwar Hoosen, Shawn R Lockhart, Nelesh P Govender
Neonatal candidaemia is a common, deadly and costly hospital-associated disease. To determine the genetic diversity of Candida parapsilosis causing fungaemia in South African neonatal intensive care units (NICUs). From February 2009 through to August 2010, cases of candidaemia were reported through laboratory-based surveillance. C. parapsilosis isolates from neonatal cases were submitted for identification by internal transcribed spacer (ITS) region sequencing, antifungal susceptibility testing and microsatellite genotyping...
January 19, 2017: Mycoses
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