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Title

Sub-chronic effects of nitrate in drinking water on red-legged partridge (Alectoris rufa): Oxidative stress and T-cell mediated immune function

AuthorsRodríguez-Estival, Jaime ; Martínez-Haro, Mónica ; Martín-Hernando, Mari Paz ; Mateo, Rafael
KeywordsMethemoglobin
Antioxidants
Nitrate/nitrite exposure
Birds
Comet assay
Issue Date2010
PublisherElsevier
CitationEnvironmental Research 110(5): 469-475 (2010)
AbstractIn order to evaluate the effects of nitrates on birds, we have exposed captive red-legged partridges to nitrates concentrations of 0 (control), 100 (dwell water in farming areas) or 500 mg/l (fertirrigation level). The cellular immune response, plasma biochemistry, methemoglobin concentration (metHb), and oxidative stress biomarkers in blood and tissues were studied after two weeks of exposure. Several blood parameters such as aspartate aminotransferase, creatinine phosphokinase and lactate dehydrogenase activities and magnesium level decreased with nitrate exposure, whereas alkaline phosphatase activity and creatinine level increased. The oxidant effect of nitrates was evidenced by the increase in blood metHb, accompanied by the lipid peroxidation of red blood cells, the increased levels of oxidized glutathione (GSH) in liver, and the generation of oxidative DNA damage in plasma lymphocytes. GSH in erythrocytes was negatively correlated with blood metHb. The cellular immune function was slightly lower at partridges exposed to nitrates. These results suggest that adverse effects of nitrates on birds occur at concentrations potentially present in the field.
URIhttp://hdl.handle.net/10261/144394
DOI10.1016/j.envres.2010.03.008
Identifiersdoi: 10.1016/j.envres.2010.03.008
issn: 0013-9351
e-issn: 1096-0953
Appears in Collections:(IREC) Artículos
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