English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/142366
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Covariation in oxidative stress markers in the blood of nestling and adult birds

AutorRomero-Haro, Ana A. ; Alonso-Álvarez, Carlos
Fecha de publicación2014
EditorUniversity of Chicago Press
CitaciónPhysiological and Biochemical Zoology 87(2): 353-362 (2014)
ResumenInterest in the imbalance between the production of reactive oxygen species and the state of the antioxidant machinery—that is, oxidative stress—has recently grown among comparative physiologists and evolutionary/behavioral ecologists. The number and types of markers used to estimate oxidative stress is, however, under debate. The study of covariation among these markers is necessary to better interpret the information content of each independent variable. Here, the covariation in levels of 10 blood parameters in a group of zebra finches (Taeniopygia guttata) as nestlings and adults was analyzed across a large data set. Total glutathione levels in erythrocytes were negatively correlated with plasma carotenoid values in nestlings only, supporting the implication of carotenoids in the antioxidant machinery during a particularly stressful period of life. Plasma lipid levels (triglycerides [TRGs]) as well as plasma antioxidant capacity—the latter tested with and without control for uric acid levels—showed individual consistency with age. Plasma TRG and uric acid levels were strongly correlated with plasma lipid peroxidation and antioxidant capacity, respectively, suggesting an influence of recent intake or mobilization of energy stores on these variables. The meaning of oxidative stress markers, whether corrected or uncorrected for levels of nutritional metabolites, remains to be explored. Experiments manipulating diet composition and oxidative stress are necessary to confirm or reject the hypothesized causalities.
Versión del editorhttps://doi.org/10.1086/674432
Identificadoresdoi: 10.1086/674432
issn: 1522-2152
e-issn: 1537-5293
Aparece en las colecciones: (IREC) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Nestlingbird.pdf308,7 kBUnknownVisualizar/Abrir
Mostrar el registro completo

Artículos relacionados:

NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.