Journal
ENVIRONMENTAL POLLUTION
Volume 174, Issue -, Pages 142-149Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2012.11.019
Keywords
Wildlife; Mining pollution; Vitamin A; Biomineralization; Lead
Categories
Funding
- Junta de Comunidades de Castilla-La Mancha
- Department of Education and Science of the Junta de Comunidades de Castilla - La Mancha [PCC-05-004-2, PCI08-0096-1295]
- Junta de Andalucia [P08-RNM-4169]
- Ministerio de Educacion [CGL2011-25906]
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Here we study the occurrence of abnormalities on bone tissue composition and turnover mechanisms through the Pb-mediated disruption of vitamins A and D in wild ungulates living in a lead (Pb)-polluted mining area. Red deer (Cervus elaphus) and wild boar (Sus scrofa) from the mining area had significantly higher liver and bone Pb levels than controls, which were associated with the depletion of liver retinyl esters and the corresponding increase of free retinol levels both in deer and boar from the mining area. Pb-exposed adult deer had lower carbonate content in bone mineral than controls, which was associated with the increased free retinol percentage. In wild boar, the degree of bone mineralization was also positively associated with higher burdens of retinyl esters. These results suggest that Pb-associated changes in bone composition and mineralization is likely influenced by the depletion of vitamin A in wildlife exposed to environmental Pb pollution. (c) 2012 Elsevier Ltd. All rights reserved.
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