Relationship between oxidative and nitrosative stress induced by gentamicin and ciprofloxacin in bacteria
- Autores
- Galera, Ivana Laura Delia; Paraje, Maria Gabriela; Paez, Paulina Laura
- Año de publicación
- 2016
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Oxygen is essential to the life of the aerobic organisms, and most is used for the intracellular generation of energy, where several molecules are formed by partial reduction of oxygen. Because of its short half-life, low selectivity and high reactivity, biological targets of reactive oxygen species (ROS) include various components such as proteins, nucleic acids and lipids. The purpose of this work was to establish a relationship between ROS and reactive nitrogen intermediates (RNI) generation in bacteria exposed to antibiotics. ROS was determined by the reduction of nitro blue tetrazolium (NBT). In aqueous solutions, nitric oxide is converted to nitrite (NO2-), this was determined using a non-enzymatic colorimetric assay. NBT studies indicated stimulation of oxidative stress with an increase of ROS generated by the antibiotic in the bacteria. We observed an increase in the production of NO2- dose-dependent with CIP and GEN. The determination of ROS and RNI allowed establish differences in the alteration of oxidative metabolism in susceptible and resistant strains. Resistance to CIP and GEN may be related to the decreased production of ROS and RNI and consequently, a smaller macromolecules bacterial oxidation. These results contribute to a better understanding of the ROS and RNI regulation.
Fil: Galera, Ivana Laura Delia. Universidad Nacional de Cordoba. Facultad de Ciencias Quimicas. Departamento de Farmacia; Argentina
Fil: Paraje, Maria Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina
Fil: Paez, Paulina Laura. Universidad Nacional de Cordoba. Facultad de Ciencias Quimicas. Departamento de Farmacia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina - Materia
-
Oxidative Stress
Bacteria
Nitrosative Stress
Antibiotics - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/19246
Ver los metadatos del registro completo
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Relationship between oxidative and nitrosative stress induced by gentamicin and ciprofloxacin in bacteriaGalera, Ivana Laura DeliaParaje, Maria GabrielaPaez, Paulina LauraOxidative StressBacteriaNitrosative StressAntibioticshttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Oxygen is essential to the life of the aerobic organisms, and most is used for the intracellular generation of energy, where several molecules are formed by partial reduction of oxygen. Because of its short half-life, low selectivity and high reactivity, biological targets of reactive oxygen species (ROS) include various components such as proteins, nucleic acids and lipids. The purpose of this work was to establish a relationship between ROS and reactive nitrogen intermediates (RNI) generation in bacteria exposed to antibiotics. ROS was determined by the reduction of nitro blue tetrazolium (NBT). In aqueous solutions, nitric oxide is converted to nitrite (NO2-), this was determined using a non-enzymatic colorimetric assay. NBT studies indicated stimulation of oxidative stress with an increase of ROS generated by the antibiotic in the bacteria. We observed an increase in the production of NO2- dose-dependent with CIP and GEN. The determination of ROS and RNI allowed establish differences in the alteration of oxidative metabolism in susceptible and resistant strains. Resistance to CIP and GEN may be related to the decreased production of ROS and RNI and consequently, a smaller macromolecules bacterial oxidation. These results contribute to a better understanding of the ROS and RNI regulation.Fil: Galera, Ivana Laura Delia. Universidad Nacional de Cordoba. Facultad de Ciencias Quimicas. Departamento de Farmacia; ArgentinaFil: Paraje, Maria Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; ArgentinaFil: Paez, Paulina Laura. Universidad Nacional de Cordoba. Facultad de Ciencias Quimicas. Departamento de Farmacia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaInternational Knowledge Press2016-02-18info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/19246Galera, Ivana Laura Delia; Paraje, Maria Gabriela; Paez, Paulina Laura; Relationship between oxidative and nitrosative stress induced by gentamicin and ciprofloxacin in bacteria; International Knowledge Press; Journal of Biology and Nature; 5; 3; 18-2-2016; 2395-53762395-53762395-5384CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.ikpress.org/abstract/5319info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:49:11Zoai:ri.conicet.gov.ar:11336/19246instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:49:11.495CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Relationship between oxidative and nitrosative stress induced by gentamicin and ciprofloxacin in bacteria |
title |
Relationship between oxidative and nitrosative stress induced by gentamicin and ciprofloxacin in bacteria |
spellingShingle |
Relationship between oxidative and nitrosative stress induced by gentamicin and ciprofloxacin in bacteria Galera, Ivana Laura Delia Oxidative Stress Bacteria Nitrosative Stress Antibiotics |
title_short |
Relationship between oxidative and nitrosative stress induced by gentamicin and ciprofloxacin in bacteria |
title_full |
Relationship between oxidative and nitrosative stress induced by gentamicin and ciprofloxacin in bacteria |
title_fullStr |
Relationship between oxidative and nitrosative stress induced by gentamicin and ciprofloxacin in bacteria |
title_full_unstemmed |
Relationship between oxidative and nitrosative stress induced by gentamicin and ciprofloxacin in bacteria |
title_sort |
Relationship between oxidative and nitrosative stress induced by gentamicin and ciprofloxacin in bacteria |
dc.creator.none.fl_str_mv |
Galera, Ivana Laura Delia Paraje, Maria Gabriela Paez, Paulina Laura |
author |
Galera, Ivana Laura Delia |
author_facet |
Galera, Ivana Laura Delia Paraje, Maria Gabriela Paez, Paulina Laura |
author_role |
author |
author2 |
Paraje, Maria Gabriela Paez, Paulina Laura |
author2_role |
author author |
dc.subject.none.fl_str_mv |
Oxidative Stress Bacteria Nitrosative Stress Antibiotics |
topic |
Oxidative Stress Bacteria Nitrosative Stress Antibiotics |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Oxygen is essential to the life of the aerobic organisms, and most is used for the intracellular generation of energy, where several molecules are formed by partial reduction of oxygen. Because of its short half-life, low selectivity and high reactivity, biological targets of reactive oxygen species (ROS) include various components such as proteins, nucleic acids and lipids. The purpose of this work was to establish a relationship between ROS and reactive nitrogen intermediates (RNI) generation in bacteria exposed to antibiotics. ROS was determined by the reduction of nitro blue tetrazolium (NBT). In aqueous solutions, nitric oxide is converted to nitrite (NO2-), this was determined using a non-enzymatic colorimetric assay. NBT studies indicated stimulation of oxidative stress with an increase of ROS generated by the antibiotic in the bacteria. We observed an increase in the production of NO2- dose-dependent with CIP and GEN. The determination of ROS and RNI allowed establish differences in the alteration of oxidative metabolism in susceptible and resistant strains. Resistance to CIP and GEN may be related to the decreased production of ROS and RNI and consequently, a smaller macromolecules bacterial oxidation. These results contribute to a better understanding of the ROS and RNI regulation. Fil: Galera, Ivana Laura Delia. Universidad Nacional de Cordoba. Facultad de Ciencias Quimicas. Departamento de Farmacia; Argentina Fil: Paraje, Maria Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina Fil: Paez, Paulina Laura. Universidad Nacional de Cordoba. Facultad de Ciencias Quimicas. Departamento de Farmacia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina |
description |
Oxygen is essential to the life of the aerobic organisms, and most is used for the intracellular generation of energy, where several molecules are formed by partial reduction of oxygen. Because of its short half-life, low selectivity and high reactivity, biological targets of reactive oxygen species (ROS) include various components such as proteins, nucleic acids and lipids. The purpose of this work was to establish a relationship between ROS and reactive nitrogen intermediates (RNI) generation in bacteria exposed to antibiotics. ROS was determined by the reduction of nitro blue tetrazolium (NBT). In aqueous solutions, nitric oxide is converted to nitrite (NO2-), this was determined using a non-enzymatic colorimetric assay. NBT studies indicated stimulation of oxidative stress with an increase of ROS generated by the antibiotic in the bacteria. We observed an increase in the production of NO2- dose-dependent with CIP and GEN. The determination of ROS and RNI allowed establish differences in the alteration of oxidative metabolism in susceptible and resistant strains. Resistance to CIP and GEN may be related to the decreased production of ROS and RNI and consequently, a smaller macromolecules bacterial oxidation. These results contribute to a better understanding of the ROS and RNI regulation. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-02-18 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/19246 Galera, Ivana Laura Delia; Paraje, Maria Gabriela; Paez, Paulina Laura; Relationship between oxidative and nitrosative stress induced by gentamicin and ciprofloxacin in bacteria; International Knowledge Press; Journal of Biology and Nature; 5; 3; 18-2-2016; 2395-5376 2395-5376 2395-5384 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/19246 |
identifier_str_mv |
Galera, Ivana Laura Delia; Paraje, Maria Gabriela; Paez, Paulina Laura; Relationship between oxidative and nitrosative stress induced by gentamicin and ciprofloxacin in bacteria; International Knowledge Press; Journal of Biology and Nature; 5; 3; 18-2-2016; 2395-5376 2395-5376 2395-5384 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/http://www.ikpress.org/abstract/5319 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
International Knowledge Press |
publisher.none.fl_str_mv |
International Knowledge Press |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1842268958919491584 |
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13.13397 |