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Revista Iberoamericana de Micología

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https://www.readbyqxmd.com/read/29731312/use-of-lignocellulosic-wastes-of-pecan-carya-illinoinensis-in-the-cultivation-of-ganoderma-lucidum
#1
María Virginia Ozcariz-Fermoselle, Raúl Fraile-Fabero, Tomás Girbés-Juan, Oscar Arce-Cervantes, Juan Andrés Oria de Rueda-Salgueiro, Anabela Marisa Azul
BACKGROUND: The wastes of pecan nut (Carya illinoinensis (Wangenh.) K. Koch) production are increasing worldwide and have high concentrations of tannins and phenols. AIMS: To study the biodegradation of lignocellulosic wastes of pecan used as solid substrate for the cultivation of the white-rot fungus Ganoderma lucidum (Curtis) P. Karst. METHODS: Six formulations of pecan wastes were used as solid substrate: pecan shells (PS100), pecan pericarp (PP100), pecan wood-chips (PB100), and the combinations PS50+PP50, PB50+PS50 and PB50+PP50...
May 3, 2018: Revista Iberoamericana de Micología
https://www.readbyqxmd.com/read/29724456/endophthalmitis-caused-by-fusarium-an-emerging-problem-in-patients-with-corneal-trauma-a-case-series
#2
José Luis Barrios Andrés, Leyre Mónica López-Soria, Ana Alastruey Izquierdo, Jaime Echevarría Ecenarro, Raquel Feijoó Lera, Jesus Garrido Fierro, Francisco Javier Cabrerizo Nuñez, Andrés Canut Blasco
BACKGROUND: Although fortunately very rare in countries with a temperate climate, certain factors, such as clinical or pharmacological immunosuppression, may cause Fusarium-related fungal infections to become an emerging problem. Moreover, Fusarium is one of the most important etiological agents in exogenous endophthalmitis, which is often favored by the disruption of the epithelial barriers. AIMS: The aim of this series of clinical cases is to identify characteristic clinical findings that may allow an early diagnosis and more efficient management of this ophthalmologic emergency...
April 30, 2018: Revista Iberoamericana de Micología
https://www.readbyqxmd.com/read/29685376/single-tube-classical-pcr-for-candida-auris-and-candida-haemulonii-identification
#3
Laura Theill, Catiana Dudiuk, Soraya Morales-Lopez, Indira Berrio, José Yesid Rodríguez, Adriana Marin, Soledad Gamarra, Guillermo Garcia-Effron
BACKGROUND: Candida auris and Candida haemulonii are emerging and multiresistant pathogens. C. auris has produced hospital outbreaks and is misidentified by phenotypic-based methods. The only reliable identification methods are DNA sequencing and MALDI-TOF. AIMS: To develop a classical-PCR method capable of rapidly and accurately identify C. auris and C. haemulonii. METHODS: A multiplex PCR was carried out in one tube that included an internal control and oligonucleotides that specifically hybridize to the ITS2 region of C...
April 20, 2018: Revista Iberoamericana de Micología
https://www.readbyqxmd.com/read/29685375/drug-susceptibility-profile-of-candida-glabrata-clinical-isolates-from-iran-and-genetic-resistant-mechanisms-to-caspofungin
#4
Saeid Amanloo, Masoomeh Shams-Ghahfarokhi, Mohammad Ghahri, Mehdi Razzaghi-Abyaneh
BACKGROUND: Candida glabrata is a yeast that can cause hazardous fungal infections with high mortality and drug resistance. AIMS: The aim of this study was to determine the profile of drug susceptibility in clinical isolates of C. glabrata and review the resistance mechanisms to caspofungin. METHODS: A total of 50 C. glabrata clinical isolates from Iran were tested for in vitro susceptibilities to amphotericin B, caspofungin, fluconazole and voriconazole...
April 20, 2018: Revista Iberoamericana de Micología
https://www.readbyqxmd.com/read/29625793/-restriction-fragment-length-polymorphism-of-its1-its2-region-to-identify-candida-auris
#5
LETTER
Berta Pino-Calm, Diego García Martínez de Artola, Helena Gil-Campesino, Julia Alcoba-Flórez
No abstract text is available yet for this article.
April 3, 2018: Revista Iberoamericana de Micología
https://www.readbyqxmd.com/read/29622510/-in-vitro-susceptibility-of-cryptic-species-of-aspergillus-fumigatus-to-isavuconazole-itraconazole-and-voriconazole-by-means-of-e-test
#6
LETTER
Iker Falces-Romero, Inmaculada Quiles-Melero, Julio García-Rodríguez
No abstract text is available yet for this article.
April 2, 2018: Revista Iberoamericana de Micología
https://www.readbyqxmd.com/read/29606407/epidemiology-of-dermatophytoses-in-31-municipalities-of-the-province-of-buenos-aires-argentina-a-6-year-study
#7
Mariana Mazza, Nicolás Refojo, Graciela Davel, Nelson Lima, Nicolina Dias, Cosme Marcelo Furtado Passos da Silva, Cristina Elena Canteros
BACKGROUND: No reliable data are available in the province of Buenos Aires regarding the frequency of dermatophytoses and other fungal diseases. The distribution of the clinical forms and the species involved are also unknown. AIMS: To present the data collected by the laboratories participating in the Mycology Network of the province of Buenos Aires (MNPBA) from a retrospective epidemiological survey on dermatophytoses. METHODS: A descriptive and exploratory analysis was performed on the cases of dermatophytoses gathered between 2002 and 2007 by the Mycology Network of the province of Buenos Aires...
March 29, 2018: Revista Iberoamericana de Micología
https://www.readbyqxmd.com/read/29605496/cost-effectiveness-of-posaconazole-in-private-and-public-brazilian-hospitals
#8
Felipe F B Tuon, Khaiany Lino Florencio, Clóvis Arns da Cunha, Jaime Luis Lopes Rocha
BACKGROUND: Posaconazole is used for the prophylaxis of invasive fungal disease (IFD). Previous studies have shown it to be cost-effective compared to fluconazole/itraconazole. However, posaconazole has never been economically evaluated in developing countries. AIMS: The aim of the present study was to perform a cost-effectiveness analysis of posaconazole compared to fluconazole in public (SUS) and private hospitals (PHS) in Brazil. METHODS: A cost-effectiveness simulation was conducted on the basis of a pivotal study on the use of posaconazole in acute myeloid leukemia (AML) patients, adjusting the costs to Brazilian data...
March 28, 2018: Revista Iberoamericana de Micología
https://www.readbyqxmd.com/read/29605495/-frequency-of-candida-in-root-canals-of-teeth-with-primary-and-persistent-endodontic-infections
#9
Angel Bernal-Treviño, Ana María González-Amaro, Verónica Méndez González, Amaury Pozos-Guillen
BACKGROUND: Microbiological identification in endodontic infections has focused mainly on bacteria without giving much attention to yeasts, which, due to their virulence factors, can affect the outcomes of root canal treatment. AIMS: To determine the frequency of Candida in anaerobic conditions in root canals with primary and persistent endodontic infection, as well as to evaluate a microbiological sampling method using aspiration compared to the traditional absorption method with paper points...
March 28, 2018: Revista Iberoamericana de Micología
https://www.readbyqxmd.com/read/29580699/evaluation-of-two-commercial-methods-for-the-susceptibility-testing-of-candida-species-vitek-2-%C3%A2-and-sensititre-yeastone-%C3%A2
#10
Ricardo Andreotti Siqueira, Andre Mario Doi, Paulo Petrus de Petrus Crossara, Paula Celia Mariko Koga, Alexandre Gimenes Marques, Fabiane Gomes Nunes, Jacyr Pasternak, Marines Dalla Valle Martino
BACKGROUND: An increased incidence of fungal infections caused by Candida species, especially Candida glabrata and Candida krusei, which are less susceptible to azoles, has been observed. Standardized susceptibility testing is essential for clinical management and for monitoring the epidemiology of resistance. AIMS: We evaluated the performance of two different susceptibility testing commercial methods, Vitek 2® and Sensititre YeastOne® , and compared them with the standard broth microdilution method (CLSI)...
March 23, 2018: Revista Iberoamericana de Micología
https://www.readbyqxmd.com/read/29544734/a-study-on-candida-biofilm-growth-characteristics-and-its-susceptibility-to-aureobasidin-a
#11
Komathy Munusamy, Jamuna Vadivelu, Sun Tee Tay
BACKGROUND: Biofilm is known to contribute to the antifungal resistance of Candida yeasts. Aureobasidin A (AbA), a cyclic depsipeptide targeting fungal sphingolipid biosynthesis, has been shown to be effective against several Candida species. AIMS: The aim of this study was to investigate Candida biofilm growth morphology, its biomass, metabolic activity, and to determine the effects of AbA on the biofilm growth. METHODS: The biofilm forming ability of several clinical isolates of different Candida species from our culture collection was determined using established methods (crystal violet and XTT assays)...
March 12, 2018: Revista Iberoamericana de Micología
https://www.readbyqxmd.com/read/29395833/molecular-identification-of-candida-species-from-urinary-infections-in-honduras
#12
Bryan Ortiz, Erika Pérez-Alemán, Carmen Galo, Gustavo Fontecha
BACKGROUND: Candiduria is a common infection among hospitalised patients. Although the clinical relevance of yeasts in urine is not clearly defined, fungal urinary tract infections have increased significantly in the last decades, becoming a growing public health problem. Candida albicans is the most commonly reported species in urinary infections, although other species of the genus are becoming particularly important, because some of them are linked with resistance to antifungal drugs...
January 30, 2018: Revista Iberoamericana de Micología
https://www.readbyqxmd.com/read/29361378/-use-of-its-and-issr-markers-in-the-molecular-characterisation-of-pleurotus-djamor-hybrid-strains
#13
Leticia Aguilar Doroteo, Paola Berenice Zárate Segura, Ramón Villanueva Arce, Jorge Yáñez Fernández, María Eugenia Garín Aguilar, Paula Cecilia Guadarrama Mendoza, Gustavo Valencia Del Toro
BACKGROUND: Molecular characterisation of wild type Pleurotus species is important for germplasm conservation and its further use for genetic improvement. No molecular studies have been performed with monokaryons used for producing hybrid strains, either with the reconstituted strains obtained by pairing those monokaryons. The molecular characterisation of parental dikaryons, hybrid, and reconstituted strains as well as monokaryotic strains, is therefore of utmost importance. AIMS: To carry out the molecular identification of Pleurotus djamor strains, i...
January 2018: Revista Iberoamericana de Micología
https://www.readbyqxmd.com/read/29287632/association-between-candida-biofilm-forming-bloodstream-isolates-and-the-clinical-evolution-in-patients-with-candidemia-an-observational-nine-year-single-center-study-in-mexico
#14
Rogelio de J Treviño-Rangel, Cynthia D Peña-López, Pedro A Hernández-Rodríguez, Dinael Beltrán-Santiago, Gloria M González
BACKGROUND: Candidemia is one of the most common nosocomial infections globally and it is associated with considerable excess mortality and costs. Abreast, biofilm-forming strains are associated with even higher mortality rates and poor prognosis for the patient. AIMS: To evaluate a possible association between the biofilm-forming capability of Candida bloodstream isolates and the clinical evolution in patients with candidemia. METHODS: An observational, retrospective study was conducted at a tertiary care university hospital during 9 years (2006-2015)...
January 2018: Revista Iberoamericana de Micología
https://www.readbyqxmd.com/read/29287631/phenotypical-characterization-and-molecular-identification-of-clinical-isolates-of-candida-tropicalis
#15
Rogelio de J Treviño-Rangel, Byron A Bodden-Mendoza, Alexandra M Montoya, Hiram Villanueva-Lozano, Mariana Elizondo-Zertuche, Efrén Robledo-Leal, Gloria M González
BACKGROUND: Candida tropicalis is an increasingly important human pathogen which usually affects neutropenic oncology patients with common hematogenous seeding to peripheral organs and high mortality rates. Candida pathogenicity is facilitated by several virulence attributes, including secretion of hydrolytic enzymes; however, little is known regarding the C. tropicalis ability to secrete them and their role in the disease. AIMS: To confirm by molecular means the identification of 187 clinical isolates (127 from blood, 52 from urine, and 8 from diverse clinical origins) phenotypically identified as C...
January 2018: Revista Iberoamericana de Micología
https://www.readbyqxmd.com/read/29287630/biofilm-formation-and-antifungal-susceptibility-of-trichosporon-asahii-isolates-from-mexican-patients
#16
Alexandra M Montoya, Mariana Elizondo-Zertuche, Rogelio de J Treviño-Rangel, Miguel Becerril-García, Gloria M González
BACKGROUND: Trichosporon asahii is a yeast-like fungus that has recently gained importance as a cause of opportunistic systemic infections. The pathogenicity and virulence factors of T. asahii remain largely unknown. Because of the association between invasive infections and the use of catheters and related devices, the ability of the microorganism to adhere and form biofilms may play an important role in the pathogenicity during a trichosporonosis. AIMS: The aim of this study is to identify an association between biofilm formation by T...
January 2018: Revista Iberoamericana de Micología
https://www.readbyqxmd.com/read/29221633/proteases-of-sporothrix-schenckii-cytopathological-effects-on-a-host-cell-model
#17
Myrna Sabanero López, Lérida L Flores Villavicencio, Karla Soto Arredondo, Gloria Barbosa Sabanero, Julio César Villagómez-Castro, Gustavo Cruz Jiménez, Gerardo Sandoval Bernal, Haydee Torres Guerrero
BACKGROUND: Sporotrichosis is a fungal infection caused by the Sporothrix schenckii complex. The adhesion of the fungus to the host tissue has been considered the key step in the colonization and invasion, but little is known about the early events in the host-parasite interaction. AIMS: To evaluate the proteolytic activity of S. schenckii on epithelial cells. METHODS: The proteolytic system (at pH 5 and 7) was evaluated using azocoll and zymograms...
January 2018: Revista Iberoamericana de Micología
https://www.readbyqxmd.com/read/29217126/fast-protocol-for-the-production-of-histoplasma-capsulatum-antigens-for-antibody-detection-in-the-immunodiagnosis-of-histoplasmosis
#18
Roseli Santos de Freitas, Camila Mika Kamikawa, Adriana Pardini Vicentini
BACKGROUND: Current methods for the production of Histoplasma capsulatum antigens are problematic in terms of standardization, specificity, stability, repeatability and reproducibility. AIMS: In this study, we sought to optimize the methodology for producing H. capsulatum antigens, and to evaluate its applicability. METHODS: Antigenic preparations obtained from 12 H. capsulatum isolates were evaluated by double immunodiffusion and immunoblotting assays against homologous and heterologous sera...
January 2018: Revista Iberoamericana de Micología
https://www.readbyqxmd.com/read/29191631/-clinical-problems-in-medical-mycology-problem-number-52
#19
Fernando Messina, Roxana Depardo, Ricardo Negroni, Mercedes Romero, Laura Walker, Alicia Arechavala, Emmanuel Marín, Cristina Canteros, Gabriela Santiso
The case of a 60 year old woman with hemoptysis and a thin-walled cavitary lesion at the upper lobe of the right lung is presented. The woman presented at the Mycology Unit of the Muñiz Hospital in Buenos Aires City 3 months after the beginning of her clinical manifestations. A hyaline micelial fungus with chlamido-arthroconidias was isolated from the bronchoalveolar lavage. Immunodiffusion and counter-immnunoelectrophoresis with coccidioidin and histoplasmin rendered positive results against both antigents, and skin tests with coccidioidin and histoplasmin were also positive with strong reactions...
January 2018: Revista Iberoamericana de Micología
https://www.readbyqxmd.com/read/29169813/-clinical-problems-in-medical-mycology-problem-number-51
#20
Mercedes Romero, Fernando Messina, Emmanuel Marín, Alicia Arechavala, Ricardo Negroni, Roxana Depardo, Laura Walker, Andrés Benchetrit, Gabriela Santiso
A 48 year-old immunocompetent woman, who had a nodular lesion in the neck and a dense infiltrate at the lower lobe of the left lung, presented at the Mycology Unit of Muñiz Hospital of Buenos Aires City. The pulmonary infiltrate disappeared spontaneously 3 months later. The histopathological study of the nodular lesion showed capsulated yeasts (mucicarmin and alcian blue positive stains) compatible with Cryptococcus. The mycological study of a new sample, obtained by a nodular puncture, allowed the isolation of yeasts, identified as Cryptococcus gattii (VGII)...
January 2018: Revista Iberoamericana de Micología
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