Hypoxia effects on oxidative stress and immunocompetence biomarkers in the mussel Perna perna (Mytilidae, Bivalvia)

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dc.contributor.authorNogueira, L�lian [UNESP]
dc.contributor.authorMello, Danielle Ferraz
dc.contributor.authorTrevisan, Rafael
dc.contributor.authorGarcia, Danielly [UNESP]
dc.contributor.authorda Silva Acosta, Daiane
dc.contributor.authorDafre, Alcir Luiz
dc.contributor.authorde Almeida, Eduardo Alves [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de Santa Catarina (UFSC)
dc.contributor.institutionFunda��o Universidade Regional de Blumenau (FURB)
dc.date.accessioned2018-12-11T17:10:17Z
dc.date.available2018-12-11T17:10:17Z
dc.date.issued2017-01-01
dc.description.abstractThis study investigated the effects of hypoxia on oxidative stress response and immune function in mussels Perna perna exposed to air for 6, 12, 24 and 48�h. In air-exposed mussels, the antioxidant enzymes superoxide dismutase (SOD), catalase, and glutathione reductase (GR) activities were lower in gill tissues (24–48�h) and digestive gland (12�h), while the glutathione peroxidase and GR activities were increased in the digestive gland (48�h). In both tissues, aerial exposure promoted a rapid (6�h) and persistent (up to 48�h) increase of glutathione levels. Decreased hemocyte count and viability, as well as increased phagocytic activity and cellular adhesion capacity were detected after prolonged aerial exposure (>12�h). In summary, induction of thiol pools, altered antioxidant enzyme activities, and activation of immune responses were detected in hypoxia exposed brown mussels, indicating hypoxia induced tissue-specific responses in both antioxidant and immune systems.en
dc.description.affiliationLaborat�rio de Biomarcadores de Contamina��o Aqu�tica Departamento de Química e Ci�ncias Ambientais Universidade Estadual Paulista (IBILCE/UNESP)
dc.description.affiliationLaborat�rio de Defesas Celulares Departamento de Bioquímica Universidade Federal de Santa Catarina
dc.description.affiliationDepartamento de Ci�ncias Naturais Funda��o Universidade Regional de Blumenau (FURB)
dc.description.affiliationUnespLaborat�rio de Biomarcadores de Contamina��o Aqu�tica Departamento de Química e Ci�ncias Ambientais Universidade Estadual Paulista (IBILCE/UNESP)
dc.format.extent109-115
dc.identifierhttp://dx.doi.org/10.1016/j.marenvres.2017.02.009
dc.identifier.citationMarine Environmental Research, v. 126, p. 109-115.
dc.identifier.doi10.1016/j.marenvres.2017.02.009
dc.identifier.file2-s2.0-85014386144.pdf
dc.identifier.issn1879-0291
dc.identifier.issn0141-1136
dc.identifier.scopus2-s2.0-85014386144
dc.identifier.urihttp://hdl.handle.net/11449/174289
dc.language.isoeng
dc.relation.ispartofMarine Environmental Research
dc.relation.ispartofsjr1,057
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectAntioxidant defenses
dc.subjectBivalves
dc.subjectHemocytes
dc.subjectImmune system
dc.subjectReduced oxygen levels
dc.titleHypoxia effects on oxidative stress and immunocompetence biomarkers in the mussel Perna perna (Mytilidae, Bivalvia)en
dc.typeArtigo

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