Vol. 55.Issue. 4. October - December 2023 | Revista Argentina de Microbiología

ISSN: 0325-7541

Revista Argentina de Microbiología is published by the Asociación Argentina de Microbiología (AAM) on a quarterly basis. The aim of this journal is to publish current scientific works in the different areas of Microbiology and Parasitology. Some of the topics considered of special interest are: infections caused by bacteria, fungi, parasites and viruses; mechanisms of pathogenicity, and virulence factors; resistance to antimicrobial agents; taxonomy; epidemiology and phenotypic, immunologic and molecular diagnostic methods. RAM also publishes articles on microbial ecology and diversity, zoo- and phytopathogens and microorganisms of value for food, agronomic, industrial and environmental applications. With the purpose of covering basic aspects of research in the area, the journal is also interested in the publication of manuscripts on microorganism genomics, proteomics and enzymology, as well as in those articles dealing with regional impact.

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Bacillus thuringiensis m401 has potential applications as a biocontrol agent.
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The genome of Bt m401 comprises genes associated with antibiotic resistance, toxins, and antimicrobial peptides.
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Bacillus thuringiensis m401 harbors the tet(45) resistant gene in the chromosome.
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Bt m401 showed high inhibition against all Paenibacillus larvae genotypes (n=52) tested in vitro.

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Microbiología clínica y enfermedades infecciosas

Optimización en la detección de bacteriemias. Uso integrado de FilmArray (BCID2) y MALDI-TOF

Natalia A. Carrion, Rodolfo E. Quiroz, Camila Asenzo, Manuela Gamarra, Antonio E. Flores, Maria Garcia, Rolando N. Soloaga, Julia Grigioni, ... Guadalupe Perez

Rev Argent Microbiol. 2023;55:332-6

Highlights

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Identificación de microorganismos responsables de bacteriemia con BCID2 y con MALDI-TOF MS.
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Empleo de BCID2 para la detección de genes de resistencia.
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La detección con BCID2 llevó a cambios terapéuticos en el 82,3% de los casos.
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Se logró un incremento en la detección de bacteriemia polimicrobiana por BCID2.

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Impact of the multiplex molecular FilmArray Respiratory Panel on antibiotic prescription and clinical management of immunocompromised adults with suspected acute respiratory tract infections: A retrospective before–after study

Silvina Bergese, Bárbara Fox, Natalia García-Allende, María Elisa Elisiri, Ana Elizabeth Schneider, Juan Ruiz, Sol Gonzalez-Fraga, Viviana Rodriguez, Liliana Fernandez-Canigia

Rev Argent Microbiol. 2023;55:337-44

Highlights

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FilmArray Respiratory Panel was associated with fewer antimicrobial prescriptions.
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The main impact was the reduction of macrolides and beta-lactams prescriptions.
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Immunocompromised patients could be the most favored using rapid molecular testing.

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Surveillance of Shiga toxin-producing Escherichia coli associated bloody diarrhea in Argentina

Marta 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

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.

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Identification of serologically active Helicobacter pylori antigens related to alterations in serum pepsinogen levels

Rodolfo González Segovia, Yolanda Romo Lozano, Martín Gerardo Rodríguez, Angelina Lizbeth Montañez Flores, Juan González Macías

Rev Argent Microbiol. 2023;55:355-65

Highlights

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Serum concentration of pepsinogens and seroantigens of H. pylori were determined.
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Helicobacter pylori seroantigens, possible indicators of atrophic mucosa.
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We observed a humoral response anti-H. pylori and altered serum pepsinogen levels.

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Microbiología agrícola, ambiental e industrial

Beneficios ecológicos y biológicos del hongo cosmopolita Trichoderma spp. en la agricultura: una perspectiva en el campo mexicano

Petra Andrade-Hoyos, Mally N. Rivera-Jiménez, Nadia Landero-Valenzuela, Hilda V. Silva-Rojas, Saira J. Martínez-Salgado, Omar Romero-Arenas

Rev Argent Microbiol. 2023;55:366-77

Highlights

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Altos beneficios sistémicos del género Trichoderma para la agricultura de México
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Alternativa sostenible para el manejo de enfermedades sin uso de agrotóxicos
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Selección y evaluación de cepas nativas de Trichoderma para el crecimiento vegetal

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Microbiología de alimentos

Biological control of foodborne pathogens by lactic acid bacteria: A focus on juice processing industries

María Clara Tarifa, María del Rosario Agustín, Lorena Inés Brugnoni

Rev Argent Microbiol. 2023;55:378-86

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.

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Estudio epidemiológico y serotipificación por PCR múltiple de Listeria monocytogenes aislada de matrices alimentarias en Argentina

Yamila Figueroa, Jimena Gentiluomo, Agustina Grisaro, Mariana Buffoni, Nadia Zipenco, Adriana Sucari, Paula Buonfiglio, Magdalena Costa

Rev Argent Microbiol. 2023;55:387-94

Highlights

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La listeriosis es una enfermedad de reciente notificación obligatoria en Argentina, por lo que se cuenta con pocos datos sobre su prevalencia.
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El 12,35% de los aislamientos fueron compatibles con L.monocytogenes.
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Las matrices positivas fueron alimentos cárnicos, RTE, helados, lácteos y vegetales congelados.
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El 22,7% de monitoreos ambientales en plantas procesadoras de alimentos fueron positivos.
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El serogrupo IIb es el más frecuente, independientemente de la matriz y el establecimiento.

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Carta al editor

False positive NDM and OXA-48 results of the lateral flow carbapenem-resistant K.N.I.V.O. Detection K-set in Stenotrophomonas maltophilia: Time for official performance evaluation of LFAs?

Georgios Meletis, Areti Tychala, Paraskevi Mantzana, Lemonia Skoura, Efthymia Protonotariou

Rev Argent Microbiol. 2023;55:395-6

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Erratum

Corrigendum to “Placentitis and abortion caused by a multidrug resistant strain of Campylobacter fetus subspecies fetus in a sheep in Uruguay” Revista Argentina de Microbiología 54 (2022) 25-30

Matías A. Dorsch, María L. Casaux, Lucía Calleros, Virginia Aráoz, Rubén D. Caffarena, Cecilia Monesiglio, Maila Barcellos, Caroline da Silva Silveira, ... Federico Giannitti

Rev Argent Microbiol. 2023;55:397-8

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