Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Waldo A. Díaz-Vásquez"'
Autor:
María V. Miranda, Fernanda C. González, Osvaldo S. Paredes-Godoy, Mario A. Maulén, Claudio C. Vásquez, Waldo A. Díaz-Vásquez
Publikováno v:
Biological Research, Vol 55, Iss 1, Pp 1-12 (2022)
Abstract Background Human Gut Microbiota (HGM) is composed of more than one thousand species, playing an important role in the health status of individuals. Dysbiosis (an HGM imbalance) is augmented as chronic kidney disease (CKD) progresses, as loss
Externí odkaz:
https://doaj.org/article/f6d5702773ef4f87abcaa3d44b80c76a
Autor:
María V. Miranda, Fernanda C. González, Osvaldo S. Paredes-Godoy, Mario A. Maulén, Claudio C. Vásquez†, Waldo A. Díaz-Vásquez
Publikováno v:
Biological research. 55(1)
Background Human Gut Microbiota (HGM) is composed of more than one thousand species, playing an important role in the health status of individuals. Dysbiosis (an HGM imbalance) is augmented as chronic kidney disease (CKD) progresses, as loss of kidne
Autor:
Waldo A. Díaz-Vásquez, Fernanda Rodríguez-Rojas, Claudio C. Vásquez, Felipe A. Arenas, Agustina Undabarrena, Pablo Muñoz-Díaz
Publikováno v:
Metallomics. 8:108-117
Mercury salts and tellurite are among the most toxic compounds for microorganisms on Earth. Bacterial mercury resistance is established mainly via mercury reduction by the mer operon system. However, specific mechanisms underlying tellurite resistanc
Autor:
Claudio C. Vásquez, M. Sabotier, Felipe A. Arenas, Juan M. Sandoval, J.A. García, Waldo A. Díaz-Vásquez, M. A. Valdivia-González
Publikováno v:
Microbiological Research. 177:22-27
Exposure to the tellurium oxyanion tellurite (TeO32−) results in the establishment of an oxidative stress status in most microorganisms. Usually, bacteria growing in the presence of the toxicant turn black because of the reduction of tellurite (Te4
Autor:
María J. Abarca-Lagunas, Waldo A. Díaz-Vásquez, Camilo A. Pinto, Fabián A. Cornejo, Felipe A. Arenas, Claudio C. Vásquez
Publikováno v:
Archives of Biochemistry and Biophysics. 566:67-75
Escherichia coli exposed to tellurite shows augmented membrane lipid peroxidation and ROS content. Also, reduced thiols, protein carbonylation, [Fe-S] center dismantling, and accumulation of key metabolites occur in these bacteria. In spite of this,
Autor:
M. A. Valdivia-González, Waldo A. Díaz-Vásquez, José M. Pérez-Donoso, Daniel Aguayo, D. Ruiz-León, Alvaro Becerra, Claudio C. Vásquez
Publikováno v:
Archives of microbiology. 200(2)
The increasing industrial utilization of tellurium has resulted in an important environmental pollution with the soluble, extremely toxic oxyanion tellurite. In this context, the use of microorganisms for detoxifying tellurite or tellurium biorecover
Autor:
Felipe A. Arenas, Claudio C. Vásquez, David E. Loyola, Roberto C. Molina-Quiroz, Ulises Urzúa, Waldo A. Díaz-Vásquez, José M. Pérez-Donoso
Publikováno v:
Research in Microbiology. 165:566-570
Tellurite (TeO3(2-)) is harmful for most microorganisms, especially Gram-negative bacteria. Even though tellurite toxicity involves a number of individual aspects, including oxidative stress, malfunctioning of metabolic enzymes and a drop in the redu
Autor:
Felipe A. Arenas, Claudio C. Vásquez, Claudia M. Muñoz, Nicole A. Henríquez, Thomas G. Chasteen, María F. Pozo, Benoit Pugin, Waldo A. Díaz-Vásquez, José M. Pérez-Donoso, Mauricio Arenas-Salinas
Publikováno v:
Polar Science. 8:40-52
The tellurium oxyanion, tellurite, is extremely noxious to most living organisms. Its toxicity has been mainly related to the generation of reactive oxygen species (ROS) as well as to an unbalancing of the thiol:redox buffering system. Nevertheless,
Autor:
Benoit Pugin, Jaime A. García, Fabián A. Cornejo, Waldo A. Díaz-Vásquez, Felipe A. Arenas, Claudio C. Vásquez
Publikováno v:
Advances in Microbiology. :183-190
The goal of this work was to enhance tellurite toxicity against Gram positive bacteria, especially Staphyloccocus aureus. Using a combination of assays (growth inhibition zones, growth curves, and minimal inhibitory concentrations), tellurite toxicit
Autor:
Fernanda Rodríguez-Rojas, Mauricio Arenas-Salinas, Waldo A. Díaz-Vásquez, Jorge Valdés, Eduardo Castro-Nallar, Pablo Muñoz-Díaz, Agustina Undabarrena, Paz Tapia, Claudio C. Vásquez
Publikováno v:
Frontiers in Microbiology
At low concentrations, heavy metals and metalloids are highly toxic for most microorganisms (Lemire et al., 2013). Over evolution, bacteria have developed several molecular mechanisms in order to cope with heavy metal/metalloid toxicity (Nies, 2000;
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::403eacae3af3f32e06e266cdc52f6c0d
http://repositorio.unab.cl/xmlui/handle/ria/3353
http://repositorio.unab.cl/xmlui/handle/ria/3353