42037
Candida albicans the main opportunistic pathogenic fungus in humansIgnacio Uriel Macias-Paz, Salvador Pérez-Hernández, Alejandra Tavera-Tapia, Juan Pedro Luna-Arias, José Eugenio Guerra-Cárdenas, Elizabeth Reyna-Beltrán
Rev Argent Microbiol. 2023;55:189-98
42037
Highlights
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Candida albicans is the main opportunistic fungus of humans.
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Eno1, Pgk1 and Als1 of C. albicans have significant immunogenicity.
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Virulence factors involved in the pathogenesis of C. albicans.
6562
Contaminantes microbianos en cervezas artesanales embotelladas de la Patagonia andina argentinaMailen Latorre, M. Clara Bruzone, Virginia de Garcia, Diego Libkind
Rev Argent Microbiol. 2023;55:88-99
6562
Highlights
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La calidad de la cerveza se ve afectada por contaminaciones microbianas.
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La bacteria predominante en las contaminaciones fue Levilactobacillus brevis.
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Las levaduras contaminantes más frecuentes fueron del género Saccharomyces.
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La presencia de contaminantes en la cerveza tiene impacto a nivel sensorial.
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Ocho de cada diez microcervecerías presentaron problemas de contaminación.
6507
Molecular detection of SARS-CoV-2 in Argentina: Evaluation of alternative diagnostic tools for the decentralization of the diagnosisGonzalo Manuel Castro, Paola Sicilia, Robertino Gierotto, Julieta Sosa, Andrés Marcos Castellaro, María Gabriela Barbás, María Belén Pisano, Viviana E. Ré
Rev Argent Microbiol. 2023;55:206-13
6507
Highlights
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Tested SARS-CoV-2 molecular assays showed good performance and allowed decentralization.
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The 9-min RNA extraction was the less time-consuming method yielding quality results.
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FlashPrep® reagent showed excellent results to perform direct RNA detection.
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Isothermal amplification assays showed acceptable sensibility and specificity.
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All the assays were useful for detection of the COVID-19 waves in the central region of Argentina.
6053
Role of Proteus mirabilis flagella in biofilm formationPaola Scavone, Victoria Iribarnegaray, María José González, Nicolás Navarro, Nicole Caneles-Huerta, Jorge Jara-Wilde, Steffen Härtel, Pablo Zunino
Rev Argent Microbiol. 2023;55:226-34
6053
Highlights
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P. mirabilis flagella have a medium-dependent role in cellular hydrophobicity.
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All motility and catheter migration models showed a significant role of flagella.
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A flagellate P. mirabilis mutant was outcompeted by the wild-type in biofilms.
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Biofilm formation of the mutant was impaired as seen in different in vitro assays.
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Flagellar function could be targeted to prevent biofilm formation.
5281
Microbiological and chemical characterization of water kefir: An innovative source of potential probiotics for bee nutritionMaría A. Rodríguez, Leticia A. Fernández, Marina L. Díaz, Mónica Pérez, Miguel Corona, Francisco J. Reynaldi
Rev Argent Microbiol. 2023;55:176-80
5281
Highlights
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Relevant microbial community was still present on kefir after one year of storage.
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Bacteria and yeasts were more numerous in kefir grains compared with beverage.
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Lentilactobacillus hilgardii, Lentilactobacillus buchneri and Saccharomyces cerevisiae were identified in water kefir.
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Water kefir may be an innovative source of potential probiotic strains for bee nutrition.
5243
Study of the genetic diversity of Moraxella spp. isolates obtained from corneal abscessesKarina L. Roitman, Lucía Cipolla, Patricia Minervini, Mónica Prieto
Rev Argent Microbiol. 2023;55:20-4
5243
Highlights
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MALDI-TOF MS is a reliable tool for identifying M. lacunata and M. nonliquefaciens.
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Using SmaI as restriction enzyme, PFGE is a useful technique for typing Moraxella species.
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Antibiotic susceptibility testing for M. lacunata is not standardized by the CLSI.
4433
Caso autóctono de rickettsiosis por Rickettsia parkeri en la Selva Paranaense, Misiones, ArgentinaKatherina A. Vizcaychipi, Mabel D. Giménez, Natalia Casas, Susana Lloveras, Gabriel L. Cicuttin, Daniela Lamattina, Javier Marx, Williams Pedrozo, ... Rita Armitano
Rev Argent Microbiol. 2023;55:83-7
4433
Highlights
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Rickettsia parkeri es una causa de rickettsiosis en Misiones, Argentina.
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El diagnóstico diferencial mejora la detección de rickettsiosis en zonas de arbovirus.
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Este hallazgo aporta a la epidemiología y al conocimiento médico regional.
3650
Surveillance of Shiga toxin-producing Escherichia coli associated bloody diarrhea in ArgentinaMarta Rivas, Mariana Pichel, Mariana Colonna, Adrián López Casanello, Laura F. Alconcher, Jimena Galavotti, Iliana Principi, Sofía Pérez Araujo, ... EPI-HUS Investigation Team
Rev Argent Microbiol. 2023;55:345-54
3650
Highlights
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A prospective study on STEC-bloody diarrhea was performed in Argentina between October 2018 and June 2019.
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Twenty-nine (4.1%) of 714 bloody diarrhea patients aged 1–9 years were STEC-positive.
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Four (13.8%) bloody diarrhea cases progressed to HUS 3–9 days after diarrhea onset.
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The most common serotypes among BD and HUS cases were O157:H7 and O145:H28.
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The prevalent genotypes among BD and HUS cases were stx2a-only or -associated.
3572
Helicobacter pylori infection: A balance between bacteria and hostPamela Bucci, Yanina Barbaglia, Fabián Tedeschi, Fabián Zalazar
Rev Argent Microbiol. 2023;55:60-7
3572
Highlights
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H. pylori genotypes and SNP-174G>C IL-6 in patients with gastritis were evaluated.
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More virulent genotypes and -174G/G IL-6 were found in active chronic gastritis IM+.
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Our results can be useful to identify patients at greater risk for adenocarcinoma.
3495
Biological control of foodborne pathogens by lactic acid bacteria: A focus on juice processing industriesMaría Clara Tarifa, María del Rosario Agustín, Lorena Inés Brugnoni
Rev Argent Microbiol. 2023;55:378-86
3495
Highlights
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L. casei and L. rhamnosus controlled foodborne pathogen adhesion on stainless steel.
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Foodborne pathogens tolerate and grow in the juice acidic food matrices.
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LAB form protective biofilms against pathogens in juice production environments.
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Protective biofilms of Lactobacillus cells on stainless steel are a promising option.