Microsporum canis pseudomycetoma and disseminated Mycobacterium genavense infection in an HIV/AIDS patient, an unusual combination
Rev Argent Microbiol. 2024 Apr 20:S0325-7541(24)00037-3. doi: 10.1016/j.ram.2024.02.005. Online ahead of print.ABSTRACTPseudomycetomas are rare fungal subcutaneous infections caused by dermatophytes, which are mainly observed in immunocompromised patients. Mycobacterium genavense is considered an opportunistic pathogen in people living with HIV/AIDS (PLWHA), clinically resembling the presentation of Mycobacterium avium complex (MAC). Here, we describe the case of a 26-year-old PLWHA with a 3-month history of a 4cm tumoral, duroelastic and painful lesion located on the back. Histopathology of the tumoral lesion revealed chr...
Source: Revista Argentina de Microbiologia - April 21, 2024 Category: Microbiology Authors: Andr és Benchetrit Fernando Messina Mario Matteo Mariana V ázquez Roxana Paul Germ án Gil Zbinden Nora Costa Gabriela Santiso Source Type: research
First isolation of Acanthamoeba spp. in seawater from the southeast of Buenos Aires (SE, Argentina)
Rev Argent Microbiol. 2024 Apr 16:S0325-7541(24)00038-5. doi: 10.1016/j.ram.2024.02.006. Online ahead of print.ABSTRACTFree-living amoebae (FLA) of the genus Acanthamoeba are ubiquitous and amphizoic protozoa that colonize aquatic and terrestrial habitats and can serve as reservoirs for other microorganisms. They are considered econoses that can cause severe and rare pathologies. Due to limited epidemiological data available, the objective of this study was to investigate the presence of Acanthamoeba in coastal wetlands of the southeast of Buenos Aires province and evaluate their association with bacteriological and enviro...
Source: Revista Argentina de Microbiologia - April 17, 2024 Category: Microbiology Authors: Loriana Tomassini Mar ía Soledad Dominguez Karina Soledad Esquius Viviana Rosa Randazzo Source Type: research
Risk factors and mortality of candidemia in a children's public hospital in Sao Paulo, Brazil
This study aimed to estimate the incidence and risk factors associated with mortality in candidemia cases occurring in a public children's hospital in Ribeirao Preto, Brazil. It is a retrospective transversal study. Every patient under the age of 18 admitted to the study facility from January 1, 2013, to December 31, 2019, was considered potentially eligible to be included if they had candidemia. We collected clinical data from medical records. We included 113 blood cultures yielding positive results for Candida. The incidence rate was 2.12 per 1000 admissions. The most common Candida species was Candida parapsilosis. Sept...
Source: Revista Argentina de Microbiologia - April 17, 2024 Category: Microbiology Authors: Rodrigo Groisman Sieben Rolando Paternina-de la Ossa Amaury Waack Davi Casale Aragon Fernando Bellissimo-Rodrigues Seila Israel do Prado Maria Celia Cervi Source Type: research
Identification and antifungal activity of halophilic bacteria isolated from saline soils in Campeche, M éxico
Rev Argent Microbiol. 2024 Apr 12:S0325-7541(24)00023-3. doi: 10.1016/j.ram.2024.02.004. Online ahead of print.ABSTRACTPhytopathogenic fungi Alternaria alternata and Colletotrichum gloeosporioides cause diseases in plant tissues as well as significant postharvest losses. The use of chemical fungicides for their control has negative effects on health and the environment. Secondary metabolites from halophilic bacteria are a promising alternative for new antifungal compounds. In the present study, halophilic bacteria were isolated and characterized from two sites with saline soils called branquizales in Campeche, Mexico. A to...
Source: Revista Argentina de Microbiologia - April 13, 2024 Category: Microbiology Authors: Miguel Á Guerra-Camacho Mar ía C Magaña-Tzuc Arely A Vargas-D íaz Hilda V Silva-Rojas Marcela Gamboa-Angulo Source Type: research
Health-promoting peptides in fermented beverages
Rev Argent Microbiol. 2024 Apr 9:S0325-7541(24)00022-1. doi: 10.1016/j.ram.2024.02.003. Online ahead of print.ABSTRACTSince ancient times, the consumption of fermented low-alcoholic beverages has enjoyed widespread popularity in various countries, because of their distinct flavors and health benefits. Several studies have demonstrated that light to moderate alcohol consumption is associated with beneficial effects on human health, mainly in cardiovascular disease prevention. Fermented beverages have different non-ethanol components that confer beneficial health effects. These bioactive compounds are mainly peptides that ha...
Source: Revista Argentina de Microbiologia - April 10, 2024 Category: Microbiology Authors: Gisselle Raquel Apud Irina Kristof Silvana Cecilia Ledesma Maria Gilda Stivala Pedro Adrian Aredes Fernandez Source Type: research
Compilation of regulations and procedures for monitoring filamentous fungi in hospital environments
Rev Argent Microbiol. 2024 Apr 9:S0325-7541(24)00020-8. doi: 10.1016/j.ram.2024.02.001. Online ahead of print.ABSTRACTAir and surfaces in the hospital environment are a potential source of exposure to filamentous fungi (FF) that could cause invasive fungal diseases (IFD) in severely immunocompromised patients. The prevalent FF in IFD are species from the genera Aspergillus, Fusarium, Scedosporium, and those within the order Mucorales. We have compiled regulations and described the procedures used in the clinical mycology laboratory to assess the presence of FF in areas at risk for the development of IFD. The infection cont...
Source: Revista Argentina de Microbiologia - April 10, 2024 Category: Microbiology Authors: Iris L Agorio Norma B Fern ández Mar ía Silvia Relloso Ivana Maldonado Source Type: research
Health-promoting peptides in fermented beverages
Rev Argent Microbiol. 2024 Apr 9:S0325-7541(24)00022-1. doi: 10.1016/j.ram.2024.02.003. Online ahead of print.ABSTRACTSince ancient times, the consumption of fermented low-alcoholic beverages has enjoyed widespread popularity in various countries, because of their distinct flavors and health benefits. Several studies have demonstrated that light to moderate alcohol consumption is associated with beneficial effects on human health, mainly in cardiovascular disease prevention. Fermented beverages have different non-ethanol components that confer beneficial health effects. These bioactive compounds are mainly peptides that ha...
Source: Revista Argentina de Microbiologia - April 10, 2024 Category: Microbiology Authors: Gisselle Raquel Apud Irina Kristof Silvana Cecilia Ledesma Maria Gilda Stivala Pedro Adrian Aredes Fernandez Source Type: research
Compilation of regulations and procedures for monitoring filamentous fungi in hospital environments
Rev Argent Microbiol. 2024 Apr 9:S0325-7541(24)00020-8. doi: 10.1016/j.ram.2024.02.001. Online ahead of print.ABSTRACTAir and surfaces in the hospital environment are a potential source of exposure to filamentous fungi (FF) that could cause invasive fungal diseases (IFD) in severely immunocompromised patients. The prevalent FF in IFD are species from the genera Aspergillus, Fusarium, Scedosporium, and those within the order Mucorales. We have compiled regulations and described the procedures used in the clinical mycology laboratory to assess the presence of FF in areas at risk for the development of IFD. The infection cont...
Source: Revista Argentina de Microbiologia - April 10, 2024 Category: Microbiology Authors: Iris L Agorio Norma B Fern ández Mar ía Silvia Relloso Ivana Maldonado Source Type: research
Health-promoting peptides in fermented beverages
Rev Argent Microbiol. 2024 Apr 9:S0325-7541(24)00022-1. doi: 10.1016/j.ram.2024.02.003. Online ahead of print.ABSTRACTSince ancient times, the consumption of fermented low-alcoholic beverages has enjoyed widespread popularity in various countries, because of their distinct flavors and health benefits. Several studies have demonstrated that light to moderate alcohol consumption is associated with beneficial effects on human health, mainly in cardiovascular disease prevention. Fermented beverages have different non-ethanol components that confer beneficial health effects. These bioactive compounds are mainly peptides that ha...
Source: Revista Argentina de Microbiologia - April 10, 2024 Category: Microbiology Authors: Gisselle Raquel Apud Irina Kristof Silvana Cecilia Ledesma Maria Gilda Stivala Pedro Adrian Aredes Fernandez Source Type: research
Compilation of regulations and procedures for monitoring filamentous fungi in hospital environments
Rev Argent Microbiol. 2024 Apr 9:S0325-7541(24)00020-8. doi: 10.1016/j.ram.2024.02.001. Online ahead of print.ABSTRACTAir and surfaces in the hospital environment are a potential source of exposure to filamentous fungi (FF) that could cause invasive fungal diseases (IFD) in severely immunocompromised patients. The prevalent FF in IFD are species from the genera Aspergillus, Fusarium, Scedosporium, and those within the order Mucorales. We have compiled regulations and described the procedures used in the clinical mycology laboratory to assess the presence of FF in areas at risk for the development of IFD. The infection cont...
Source: Revista Argentina de Microbiologia - April 10, 2024 Category: Microbiology Authors: Iris L Agorio Norma B Fern ández Mar ía Silvia Relloso Ivana Maldonado Source Type: research
Agave fructanos promote in vitro biofilm formation with a probiotic consortium Lactobacillus delbrueckii ssp. lactis, L. delbrueckii ssp. bulgaricus and Streptococcus thermophilus
This study aimed to evaluate in vitro the biofilm formation in a consortium of lactic acid bacteria: Lactobacillus delbrueckii ssp. lactis, Lactobacillus delbrueckii ssp. bulgaricus y Streptococcus thermophilus in the presence of AF at different concentrations: 0%, 0,1%, 4%, 8% y 16%. The addition of 0,1% of AF correlates with the best capacity for biofilm formation. The findings imply the possibility of modulating the biofilm formation of lactic acid bacteria with AF. These results can contribute positively to the host, by generating intestinal homeostasis, colonization resistance, stability to food digestion and chemical...
Source: Revista Argentina de Microbiologia - April 4, 2024 Category: Microbiology Authors: Mary Carmen Citlally Condado Huerta Mayra Antunez-Mojica Haydee Mart ínez Plascencia Am érica Ivette Barrera Molina Source Type: research
