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Genotyping of candida

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https://www.readbyqxmd.com/read/28912344/parasex-generates-phenotypic-diversity-de-novo-and-impacts-drug-resistance-and-virulence-in-candida-albicans
#1
Matthew P Hirakawa, Darius E Chyou, Denis Huang, Aaron R Slan, Richard J Bennett
Candida albicans is a diploid fungus that is a frequent cause of mucosal and systemic infections in humans. This species exhibits an unusual parasexual cycle in which mating produces tetraploid cells that undergo a non-meiotic program of concerted chromosome loss to return to a diploid or aneuploid state. In this work, we used a multipronged approach to examine the capacity of parasex to generate diversity in C. albicans First, we compared the phenotypic properties of 32 genotyped progeny and observed wide-ranging differences in fitness, filamentation, biofilm formation and virulence...
September 14, 2017: Genetics
https://www.readbyqxmd.com/read/28891112/candida-albicans-isolates-from-a-single-hospital-show-low-phenotypical-specialization
#2
Enikő Boros, Walter P Pfliegler, Renátó Kovács, Ágnes Jakab, László Majoros, Zoltán Barta, István Pócsi
Candida albicans is the best-studied opportunistic human pathogenic yeast species, and its virulence factors, susceptibility to antimycotics, the diversity of its physiological properties and the determinative factors of these traits are interesting from a clinical as well as from an evolutionary perspective. By applying statistical modeling for the phenotypical differences observed among a collection of 63 C. albicans isolates originating from different clinical care units, from a diverse group of patients with or without mycosis, collected in a Hungarian clinic, we found that (i) host-related aspects like anatomical source, care unit of isolation, patients' age, sex, and disease severity, or ABC genotypes of the isolates had less effect on the phenotypic features of this opportunistic pathogen than host-independent aspects, for example, year or month of isolation; (ii) different phenotypic traits did not show any significant correlations with each other; and (iii) different genotypes displayed no anatomical specialization and rarely showed any significant correlation with parameters of isolation either...
September 11, 2017: Journal of Basic Microbiology
https://www.readbyqxmd.com/read/28867945/genetic-biochemical-nutritional-and-antimicrobial-characteristics-of-pomegranate-punica-granatum-l-%C3%A2-grown-in-istria
#3
Ana Miklavčič Višnjevec, Ajda Ota, Mihaela Skrt, Bojan Butinar, Sonja Smole Možina, Nina Gunde Cimerman, Marijan Nečemer, Alenka Baruca Arbeiter, Matjaž Hladnik, Marin Krapac, Dean Ban, Milena Bučar-Miklavčič, Nataša Poklar Ulrih, Dunja Bandelj
This study characterises the genetic variability of local pomegranate (Punica granatum L.) germplasm from the Slovenian and Croatian areas of Istria. The bioactive components and antioxidant and antimicrobial properties of ethanol and water extracts of different parts of pomegranate fruit were also determined, along with their preliminary nutritional characterisation. Twenty-six different genotypes identified with microsatellite analysis indicate the great diversity of pomegranate in Istria. The pomegranate fruit ethanol extracts represent rich sources of phenolic compounds (mean value of the mass fraction in exocarp and mesocarp expressed as gallic acid is 23 and 16 mg/g, respectively)...
June 2017: Food Technology and Biotechnology
https://www.readbyqxmd.com/read/28854190/population-structure-and-molecular-genetic-characterization-of-clinical-candida-tropicalis-isolates-from-a-tertiary-care-hospital-in-kuwait-reveal-infections-with-unique-strains
#4
Khaled Al-Obaid, Mohammad Asadzadeh, Suhail Ahmad, Ziauddin Khan
Candida tropicalis is a frequently isolated yeast species causing bloodstream, urinary tract and other infections particularly in patients admitted to intensive care units (ICUs) and those requiring prolonged urinary catheterization (UC) or receiving broad-spectrum antibiotics (BSA). This study investigated clinical characteristics and genetic relatedness among C. tropicalis strains isolated from patients at Al-Amiri Hospital in Kuwait. C. tropicalis strains (n = 63) isolated from blood, genito-urinary, respiratory (RT) and digestive (GIT) tracts and wound sites from 54 patients were used...
2017: PloS One
https://www.readbyqxmd.com/read/28837732/candida-species-from-eye-infections-drug-susceptibility-virulence-factors-and-molecular-characterization
#5
Konduri Ranjith, Bhavani Sontam, Savitri Sharma, Joveeta Joseph, Kanchana N Chathoth, Kalyana C Sama, Somasheila I Murthy, Sisinthy Shivaji
Purpose: To determine the type of Candida species in ocular infections and to investigate the relationship of antifungal susceptibility profile to virulence factors. Methods: Fifty isolates of yeast-like fungi from patients with keratitis, endophthalmitis, and orbital cellulitis were identified by Vitek-2 compact system and DNA sequencing of ITS1-5.8S-ITS2 regions of the rRNA gene, followed by phylogenetic analysis for phenotypic and genotypic identification, respectively...
August 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28831086/potential-use-of-maldi-tof-mass-spectrometry-for-rapid-detection-of-antifungal-resistance-in-the-human-pathogen-candida-glabrata
#6
Antonietta Vella, Elena De Carolis, Enrica Mello, David S Perlin, Dominique Sanglard, Maurizio Sanguinetti, Brunella Posteraro
The echinocandins are relatively new antifungal drugs that represent, together with the older azoles, the recommended and/or preferred agents to treat candidaemia and other forms of invasive candidiasis in human patients. If "time is of the essence" to reduce the mortality for these infections, the administration of appropriate antifungal therapy could be accelerated by the timely reporting of laboratory test results. In this study, we attempted to validate a MALDI-ToF mass spectrometry-based assay for the antifungal susceptibility testing (AFST) of the potentially multidrug-resistant pathogen Candida glabrata against anidulafungin and fluconazole...
August 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28827419/antifungal-activity-of-scy-078-and-standard-antifungal-agents-against-178-clinical-isolates-of-resistant-and-susceptible-candida-species
#7
Wiley A Schell, A M Jones, Katyna Borroto-Esoda, Barbara D Alexander
SCY-078 in vitro activity was determined for 178 isolates of resistant and susceptible C. albicans, C. dubliniensis, C. glabrata, C. krusei, C. lusitaniae, and C. parapsilosis, including 44 Candida isolates having known genotypic (FKS1 or FKS2 mutations), phenotypic or clinical resistance to echinocandins. Results were compared to those for anidulafungin, caspofungin, micafungin, fluconazole and voriconazole. SCY-078 was shown to have excellent activity against both wild-type isolates and echinocandin- and azole-resistant isolates of Candida species...
August 21, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28792540/antibiotics-resistance-in-el-tor-vibrio-cholerae-01-isolated-during-cholera-outbreaks-in-mozambique-from-2012-to-2015
#8
Liliana Candida Dengo-Baloi, Cynthia Amino Semá-Baltazar, Lena Vania Manhique, Jucunu Elias Chitio, Dorteia Luísa Inguane, José Paulo Langa
RATIONALE: Mozambique has recorded cyclically epidemic outbreaks of cholera. Antibiotic therapy is recommended in specific situations for management and control of cholera outbreaks. However, an increase in resistance rates to antibiotics by Vibrio cholerae has been reported in several epidemic outbreaks worldwide. On the other hand, there are few recent records of continuous surveillance of antibiotics susceptibility pattern of V. cholerae in Mozambique. GOALS: The purpose of this study was to evaluate antibiotics resistance pattern of Vibrio cholerae O1 Ogawa isolated during Cholera outbreaks in Mozambique to commonly used antibiotics...
2017: PloS One
https://www.readbyqxmd.com/read/28771588/mtl-genotypes-phenotypic-switching-and-susceptibility-profiles-of-candida-parapsilosis-species-group-compared-to-lodderomyces-elongisporus
#9
COMPARATIVE STUDY
Aylin Döğen, Banu Metin, Macit Ilkit, G Sybren de Hoog, Joseph Heitman
Reference isolates of Candida parapsilosis (n = 8), Candida metapsilosis (n = 6), Candida orthopsilosis (n = 7), and Lodderomyces elongisporus (n = 11) were analyzed to gain insight into their pathobiology and virulence mechanisms. Initial evaluation using BBL Chromagar Candida medium misidentified L. elongisporus isolates as C. albicans. Polymerase chain reaction analysis of isolate MTL idiomorphs revealed that all C. parapsilosis isolates were MTLa homozygous and no MTL α1, α2, a1, or a2 gene was detected in L...
2017: PloS One
https://www.readbyqxmd.com/read/28744769/association-between-candiduria-and-candidemia-a-clinical-and-molecular-analysis-of-cases
#10
Maria Drogari-Apiranthitou, Ioannis Anyfantis, Irene Galani, Labrini Kanioura, Georgios L Daikos, Georgios Petrikkos
The risk of developing candidemia after candiduria is reportedly very low, but it has not been adequately investigated. The aim of this study was to examine the molecular relatedness between Candida strains isolated from adult patients with candidemia and concomitant candiduria in association with the clinical characteristics of the cases. All episodes of candidemia occurring in a tertiary care academic hospital during a 5-year period were recorded prospectively. Patients with episodes of candiduria occurring two weeks preceding to or one week following a positive for Candida blood culture were included in the study...
July 25, 2017: Mycopathologia
https://www.readbyqxmd.com/read/28727728/an-integrative-genomics-approach-identifies-novel-pathways-that-influence-candidaemia-susceptibility
#11
Vasiliki Matzaraki, Mark S Gresnigt, Martin Jaeger, Isis Ricaño-Ponce, Melissa D Johnson, Marije Oosting, Lude Franke, Sebo Withoff, John R Perfect, Leo A B Joosten, Bart Jan Kullberg, Frank L van de Veerdonk, Iris Jonkers, Yang Li, Cisca Wijmenga, Mihai G Netea, Vinod Kumar
Candidaemia is a bloodstream infection caused by Candida species that primarily affects specific groups of at-risk patients. Because only small candidaemia patient cohorts are available, classical genome wide association cannot be used to identify Candida susceptibility genes. Therefore, we have applied an integrative genomics approach to identify novel susceptibility genes and pathways for candidaemia. Candida-induced transcriptome changes in human primary leukocytes were assessed by RNA sequencing. Genetic susceptibility to candidaemia was assessed using the Illumina immunochip platform for genotyping of a cohort of 217 patients...
2017: PloS One
https://www.readbyqxmd.com/read/28714976/rare-coding-variants-in-plcg2-abi3-and-trem2-implicate-microglial-mediated-innate-immunity-in-alzheimer-s-disease
#12
Rebecca Sims, Sven J van der Lee, Adam C Naj, Céline Bellenguez, Nandini Badarinarayan, Johanna Jakobsdottir, Brian W Kunkle, Anne Boland, Rachel Raybould, Joshua C Bis, Eden R Martin, Benjamin Grenier-Boley, Stefanie Heilmann-Heimbach, Vincent Chouraki, Amanda B Kuzma, Kristel Sleegers, Maria Vronskaya, Agustin Ruiz, Robert R Graham, Robert Olaso, Per Hoffmann, Megan L Grove, Badri N Vardarajan, Mikko Hiltunen, Markus M Nöthen, Charles C White, Kara L Hamilton-Nelson, Jacques Epelbaum, Wolfgang Maier, Seung-Hoan Choi, Gary W Beecham, Cécile Dulary, Stefan Herms, Albert V Smith, Cory C Funk, Céline Derbois, Andreas J Forstner, Shahzad Ahmad, Hongdong Li, Delphine Bacq, Denise Harold, Claudia L Satizabal, Otto Valladares, Alessio Squassina, Rhodri Thomas, Jennifer A Brody, Liming Qu, Pascual Sánchez-Juan, Taniesha Morgan, Frank J Wolters, Yi Zhao, Florentino Sanchez Garcia, Nicola Denning, Myriam Fornage, John Malamon, Maria Candida Deniz Naranjo, Elisa Majounie, Thomas H Mosley, Beth Dombroski, David Wallon, Michelle K Lupton, Josée Dupuis, Patrice Whitehead, Laura Fratiglioni, Christopher Medway, Xueqiu Jian, Shubhabrata Mukherjee, Lina Keller, Kristelle Brown, Honghuang Lin, Laura B Cantwell, Francesco Panza, Bernadette McGuinness, Sonia Moreno-Grau, Jeremy D Burgess, Vincenzo Solfrizzi, Petra Proitsi, Hieab H Adams, Mariet Allen, Davide Seripa, Pau Pastor, L Adrienne Cupples, Nathan D Price, Didier Hannequin, Ana Frank-García, Daniel Levy, Paramita Chakrabarty, Paolo Caffarra, Ina Giegling, Alexa S Beiser, Vilmantas Giedraitis, Harald Hampel, Melissa E Garcia, Xue Wang, Lars Lannfelt, Patrizia Mecocci, Gudny Eiriksdottir, Paul K Crane, Florence Pasquier, Virginia Boccardi, Isabel Henández, Robert C Barber, Martin Scherer, Lluis Tarraga, Perrie M Adams, Markus Leber, Yuning Chen, Marilyn S Albert, Steffi Riedel-Heller, Valur Emilsson, Duane Beekly, Anne Braae, Reinhold Schmidt, Deborah Blacker, Carlo Masullo, Helena Schmidt, Rachelle S Doody, Gianfranco Spalletta, W T Longstreth Jr, Thomas J Fairchild, Paola Bossù, Oscar L Lopez, Matthew P Frosch, Eleonora Sacchinelli, Bernardino Ghetti, Qiong Yang, Ryan M Huebinger, Frank Jessen, Shuo Li, M Ilyas Kamboh, John Morris, Oscar Sotolongo-Grau, Mindy J Katz, Chris Corcoran, Melanie Dunstan, Amy Braddel, Charlene Thomas, Alun Meggy, Rachel Marshall, Amy Gerrish, Jade Chapman, Miquel Aguilar, Sarah Taylor, Matt Hill, Mònica Díez Fairén, Angela Hodges, Bruno Vellas, Hilkka Soininen, Iwona Kloszewska, Makrina Daniilidou, James Uphill, Yogen Patel, Joseph T Hughes, Jenny Lord, James Turton, Annette M Hartmann, Roberta Cecchetti, Chiara Fenoglio, Maria Serpente, Marina Arcaro, Carlo Caltagirone, Maria Donata Orfei, Antonio Ciaramella, Sabrina Pichler, Manuel Mayhaus, Wei Gu, Alberto Lleó, Juan Fortea, Rafael Blesa, Imelda S Barber, Keeley Brookes, Chiara Cupidi, Raffaele Giovanni Maletta, David Carrell, Sandro Sorbi, Susanne Moebus, Maria Urbano, Alberto Pilotto, Johannes Kornhuber, Paolo Bosco, Stephen Todd, David Craig, Janet Johnston, Michael Gill, Brian Lawlor, Aoibhinn Lynch, Nick C Fox, John Hardy, Roger L Albin, Liana G Apostolova, Steven E Arnold, Sanjay Asthana, Craig S Atwood, Clinton T Baldwin, Lisa L Barnes, Sandra Barral, Thomas G Beach, James T Becker, Eileen H Bigio, Thomas D Bird, Bradley F Boeve, James D Bowen, Adam Boxer, James R Burke, Jeffrey M Burns, Joseph D Buxbaum, Nigel J Cairns, Chuanhai Cao, Chris S Carlson, Cynthia M Carlsson, Regina M Carney, Minerva M Carrasquillo, Steven L Carroll, Carolina Ceballos Diaz, Helena C Chui, David G Clark, David H Cribbs, Elizabeth A Crocco, Charles DeCarli, Malcolm Dick, Ranjan Duara, Denis A Evans, Kelley M Faber, Kenneth B Fallon, David W Fardo, Martin R Farlow, Steven Ferris, Tatiana M Foroud, Douglas R Galasko, Marla Gearing, Daniel H Geschwind, John R Gilbert, Neill R Graff-Radford, Robert C Green, John H Growdon, Ronald L Hamilton, Lindy E Harrell, Lawrence S Honig, Matthew J Huentelman, Christine M Hulette, Bradley T Hyman, Gail P Jarvik, Erin Abner, Lee-Way Jin, Gyungah Jun, Anna Karydas, Jeffrey A Kaye, Ronald Kim, Neil W Kowall, Joel H Kramer, Frank M LaFerla, James J Lah, James B Leverenz, Allan I Levey, Ge Li, Andrew P Lieberman, Kathryn L Lunetta, Constantine G Lyketsos, Daniel C Marson, Frank Martiniuk, Deborah C Mash, Eliezer Masliah, Wayne C McCormick, Susan M McCurry, Andrew N McDavid, Ann C McKee, Marsel Mesulam, Bruce L Miller, Carol A Miller, Joshua W Miller, John C Morris, Jill R Murrell, Amanda J Myers, Sid O'Bryant, John M Olichney, Vernon S Pankratz, Joseph E Parisi, Henry L Paulson, William Perry, Elaine Peskind, Aimee Pierce, Wayne W Poon, Huntington Potter, Joseph F Quinn, Ashok Raj, Murray Raskind, Barry Reisberg, Christiane Reitz, John M Ringman, Erik D Roberson, Ekaterina Rogaeva, Howard J Rosen, Roger N Rosenberg, Mark A Sager, Andrew J Saykin, Julie A Schneider, Lon S Schneider, William W Seeley, Amanda G Smith, Joshua A Sonnen, Salvatore Spina, Robert A Stern, Russell H Swerdlow, Rudolph E Tanzi, Tricia A Thornton-Wells, John Q Trojanowski, Juan C Troncoso, Vivianna M Van Deerlin, Linda J Van Eldik, Harry V Vinters, Jean Paul Vonsattel, Sandra Weintraub, Kathleen A Welsh-Bohmer, Kirk C Wilhelmsen, Jennifer Williamson, Thomas S Wingo, Randall L Woltjer, Clinton B Wright, Chang-En Yu, Lei Yu, Fabienne Garzia, Feroze Golamaully, Gislain Septier, Sebastien Engelborghs, Rik Vandenberghe, Peter P De Deyn, Carmen Muñoz Fernadez, Yoland Aladro Benito, Hakan Thonberg, Charlotte Forsell, Lena Lilius, Anne Kinhult-Stählbom, Lena Kilander, RoseMarie Brundin, Letizia Concari, Seppo Helisalmi, Anne Maria Koivisto, Annakaisa Haapasalo, Vincent Dermecourt, Nathalie Fievet, Olivier Hanon, Carole Dufouil, Alexis Brice, Karen Ritchie, Bruno Dubois, Jayanadra J Himali, C Dirk Keene, JoAnn Tschanz, Annette L Fitzpatrick, Walter A Kukull, Maria Norton, Thor Aspelund, Eric B Larson, Ron Munger, Jerome I Rotter, Richard B Lipton, María J Bullido, Albert Hofman, Thomas J Montine, Eliecer Coto, Eric Boerwinkle, Ronald C Petersen, Victoria Alvarez, Fernando Rivadeneira, Eric M Reiman, Maura Gallo, Christopher J O'Donnell, Joan S Reisch, Amalia Cecilia Bruni, Donald R Royall, Martin Dichgans, Mary Sano, Daniela Galimberti, Peter St George-Hyslop, Elio Scarpini, Debby W Tsuang, Michelangelo Mancuso, Ubaldo Bonuccelli, Ashley R Winslow, Antonio Daniele, Chuang-Kuo Wu, Oliver Peters, Benedetta Nacmias, Matthias Riemenschneider, Reinhard Heun, Carol Brayne, David C Rubinsztein, Jose Bras, Rita Guerreiro, Ammar Al-Chalabi, Christopher E Shaw, John Collinge, David Mann, Magda Tsolaki, Jordi Clarimón, Rebecca Sussams, Simon Lovestone, Michael C O'Donovan, Michael J Owen, Timothy W Behrens, Simon Mead, Alison M Goate, Andre G Uitterlinden, Clive Holmes, Carlos Cruchaga, Martin Ingelsson, David A Bennett, John Powell, Todd E Golde, Caroline Graff, Philip L De Jager, Kevin Morgan, Nilufer Ertekin-Taner, Onofre Combarros, Bruce M Psaty, Peter Passmore, Steven G Younkin, Claudine Berr, Vilmundur Gudnason, Dan Rujescu, Dennis W Dickson, Jean-François Dartigues, Anita L DeStefano, Sara Ortega-Cubero, Hakon Hakonarson, Dominique Campion, Merce Boada, John Keoni Kauwe, Lindsay A Farrer, Christine Van Broeckhoven, M Arfan Ikram, Lesley Jones, Jonathan L Haines, Christophe Tzourio, Lenore J Launer, Valentina Escott-Price, Richard Mayeux, Jean-François Deleuze, Najaf Amin, Peter A Holmans, Margaret A Pericak-Vance, Philippe Amouyel, Cornelia M van Duijn, Alfredo Ramirez, Li-San Wang, Jean-Charles Lambert, Sudha Seshadri, Julie Williams, Gerard D Schellenberg
We identified rare coding variants associated with Alzheimer's disease in a three-stage case-control study of 85,133 subjects. In stage 1, we genotyped 34,174 samples using a whole-exome microarray. In stage 2, we tested associated variants (P < 1 × 10(-4)) in 35,962 independent samples using de novo genotyping and imputed genotypes. In stage 3, we used an additional 14,997 samples to test the most significant stage 2 associations (P < 5 × 10(-8)) using imputed genotypes. We observed three new genome-wide significant nonsynonymous variants associated with Alzheimer's disease: a protective variant in PLCG2 (rs72824905: p...
September 2017: Nature Genetics
https://www.readbyqxmd.com/read/28662107/highly-mutable-tandem-dna-repeats-generate-a-cell-wall-protein-variant-more-frequent-in-disease-causing-candida-albicans-isolates-than-in-commensal-isolates
#13
Zhuo Zhou, Zoe Jordens, Shuguang Zhang, Ningxin Zhang, Jan Schmid
During adaptation to host environments, many microorganisms alter their cell surface. One mechanism for doing so is variation in the number of amino acid repeats in cell surface proteins encoded by hypermutable DNA tandem repeats. In the yeast Candida albicans, an opportunistic human pathogen, the gene SSR1 encodes a GPI-anchored cell wall protein with a structural role. It contains two regions consisting of tandem repeats, almost exclusively encoding the amino acid pair Ser-Ala. As expected, the repeat regions make SSR1 highly mutable...
2017: PloS One
https://www.readbyqxmd.com/read/28648496/fruits-as-the-vehicle-of-drug-resistant-pathogenic-yeasts
#14
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...
September 2017: Journal of Infection
https://www.readbyqxmd.com/read/28641919/prevalence-of-candida-africana-and-candida-dubliniensis-in-vulvovaginal-candidiasis-first-turkish-candida-africana-isolates-from-vulvovaginal-candidiasis
#15
G Hazirolan, H U Altun, R Gumral, N C Gursoy, B Otlu, B Sancak
INTRODUCTION: Candida africana and C. dubliniensis are closely related species of C. albicans. Current phenotypic methods are not suitable to accurately distinguish all the species belonging to the C. albicans complex. Several molecular-based methods have recently been designed for discriminating among closely related Candida species. The aim of this study was to establish the prevalence of C. dubliniensis and C. africana in vulvovaginal samples with phenotypic and genotypic methods...
June 19, 2017: Journal de Mycologie Médicale
https://www.readbyqxmd.com/read/28597685/a-gain-of-function-mutation-of-stat1-a-novel-genetic-factor-contributing-to-chronic-mucocutaneous-candidiasis
#16
Narges Eslami, Marzieh Tavakol, Mehrnaz Mesdaghi, Mohammad Gharegozlou, Jean-Laurent Casanova, Anne Puel, Satoshi Okada, Saba Arshi, Mohammad Hassan Bemanian, Morteza Fallahpour, Rasool Molatefi, Farhad Seif, Samaneh Zoghi, Nima Rezaei, Mohammad Nabavi
Heterozygous gain-of-function (GOF) mutations in the signal transducer and activator of transcription 1 (STAT1) have increasingly been identified as a genetic cause of autosomal-dominant (AD) chronic mucocutaneous candidiasis (CMC). In this article, we describe a 33-year-old man who experienced chronic refractory candidiasis, recurrent otitis media, and pneumonia resulting in bronchiectasis, severe oral and esophageal candidiases with strictures associated with hypothyroidism and immune hemolytic anemia. His son also suffered from persistent candidiasis, chronic diarrhea, poor weight gain, and pneumonia that resulted in his demise because of sepsis...
June 1, 2017: Acta Microbiologica et Immunologica Hungarica
https://www.readbyqxmd.com/read/28595520/a-case-of-fulminant-type-1-diabetes-following-anti-pd1-immunotherapy-in-a-genetically-susceptible-patient
#17
Manuel Araújo, Dário Ligeiro, Luís Costa, Filipa Marques, Helder Trindade, José Manuel Correia, Candida Fonseca
Programmed cell death-1 protein (PD-1) is an immune checkpoint that has gained popularity in the treatment of several advanced cancers. Inhibiting this checkpoint is known to enhance immune response, but is also known to diminish immune tolerance and to increase autoimmune toxicity. We discuss a case of rapid onset fulminant Type 1 diabetes induced by treatment with anti-programmed cell death-1 monoclonal antibody, nivolumab, in a patient with late-stage non-small-cell lung adenocarcinoma. The patient had no history of previous diabetes but did reveal a high-risk genotype for Type 1 diabetes development (DR3-DQ2; DR4-DQ8)...
June 2017: Immunotherapy
https://www.readbyqxmd.com/read/28588560/molecular-epidemiology-and-antifungal-susceptibility-of-candida-glabrata-in-china-august-2009-to-july-2014-a-multi-center-study
#18
Xin Hou, Meng Xiao, Sharon C-A Chen, Fanrong Kong, He Wang, Yun-Zhuo Chu, Mei Kang, Zi-Yong Sun, Zhi-Dong Hu, Ruo-Yu Li, Juan Lu, Kang Liao, Tie-Shi Hu, Yu-Xing Ni, Gui-Ling Zou, Ge Zhang, Xin Fan, Yu-Pei Zhao, Ying-Chun Xu
Candida glabrata is an increasingly important cause of invasive candidiasis. In China, relatively little is known of the molecular epidemiology of C. glabrata and of its antifungal susceptibility patterns. Here we studied 411 non-duplicate C. glabrata isolates from 411 patients at 11 hospitals participating in the National China Hospital Invasive Fungal Surveillance Net program (CHIF-NET; 2010-2014). Genotyping was performed using multilocus sequence typing (MLST) employing six genetic loci and by microsatellite analysis...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28543785/phenotypic-and-genotypic-characteristics-of-candida-albicans-isolates-from-bloodstream-and-mucosal-infections
#19
Marina Mandelblat, Michael Frenkel, Darren Abbey, Ronen Ben Ami, Judith Berman, Esther Segal
The interaction of Candida albicans with the host is of a complex nature involving fungal factors and host's response. In this study, we concentrated on the phenotypic expression of virulence attributes and genotypic characteristics of C. albicans isolates from two distinct clinical entities of candidiasis-blood stream and vaginal infections, and the possible role of these factors. Hence, we conducted a comparative in vitro assessment of virulence characteristics, including adhesion to epithelial cells and HaCat cell line, biofilm formation, aspartic proteinases and phospholipase activity of 20 C...
August 2017: Mycoses
https://www.readbyqxmd.com/read/28542393/head-to-head-comparison-of-microflex-lt-and-vitek-ms-systems-for-routine-identification-of-microorganisms-by-maldi-tof-mass-spectrometry-in-chile
#20
COMPARATIVE STUDY
Lorena Porte, Patricia García, Stephanie Braun, María Teresa Ulloa, Mónica Lafourcade, Alisson Montaña, Carolina Miranda, Gerardo Acosta-Jamett, Thomas Weitzel
BACKGROUND: Matrix-assisted laser desorption ionization-time of flight (MALDI-TOF) mass spectrometry (MS) is a new and revolutionary identification method for microorganisms and has recently been introduced into clinical microbiology in many industrialized countries in Europe and North America. OBJECTIVES: Our study aimed to compare the performance and practicality of two commercial MALDI-TOF MS platforms in a head-to head manner at a routine laboratory in Chile...
2017: PloS One
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