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  • 1
    Electronic Resource
    Electronic Resource
    Histological alterations in the liver of sea bream, Sparus aurata L., caused by short- or long-term feeding with vegetable oils. Recovery of normal morphology after feeding fish oil as the sole lipid source (2004)
    Oxford, UK : Blackwell Science Ltd
    Journal of fish diseases 27 (2004), S. 0 
    Details
    ISSN: 1365-2761
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: This study evaluated the effects of fish oil (FO) replacement by vegetable oils [soybean oil (SO), rapeseed oil (RO), linseed oil (LO)] and subsequent feeding with FO on the liver morphology of sea bream. A short-term trial (3 months) and long-term trial (6 months) were carried out feeding sea bream with the following experimental diets: FO100%; SO60% + FO40%; RO60% +FO40%; LO60% + FO40%; SO + RO +LO60% + FO40%. Finally, all groups from the long-term trial were fed with FO100% for 95 days (washout period). Liver samples were taken for histological and biochemical studies. In both the short- and long-term trials, livers of sea bream fed LO60% and SO + RO + LO60% showed a similar hepatic morphology to that observed in fish fed FO100%. In contrast, sea bream fed SO60% showed an intense steatosis, with foci of swollen hepatocytes containing numerous lipid vacuoles. After the washout period, a considerable reduction of the cytoplasmic vacuolation and the lipid vacuole accumulation were observed in the livers of fish fed the different experimental diets. The results of this study suggested that the type of non-essential fatty acid, characteristic of vegetable oils, induces the appearance of steatosis in the following order: linoleic acid 〉 linolenic acid 〉 oleic acid. However, the liver alterations found during the experimental periods with vegetable oils are reversible when the fish are re-fed with a balanced diet (FO100%), indicating the non-pathological character of these histological changes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2761.2004.00572.x
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  • 2
    Electronic Resource
    Electronic Resource
    Distribution of Cadmium in Blood and Tissues of Wild Birds (1996)
    Springer
    Archives of environmental contamination and toxicology 30 (1996), S. 252-258 
    Details
    ISSN: 1432-0703
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: Abstract. The principal aim of this study is to establish the kinetic behavior of cadmium by determining the concentrations of this element in the blood and in different tissues of wild birds exposed to environmental cadmium. We have studied a total of 118 birds living in the southeast of Spain, a zone with a Mediterranean climate and stopover point for important migratory species. The distribution pattern followed by the cadmium in our samples reveals that the kidney is the primary organ for accumulation, followed by the liver and, to lesser extent, the brain and bone. Low concentrations were found in the tissues and in the blood. The study of correlations between the different tissues and blood suggests a compartmental behavior of cadmium under these exposure conditions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00215805
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Distribution of cadmium in blood and tissues of wild birds (1996)
    Springer
    Archives of environmental contamination and toxicology 30 (1996), S. 252-258 
    Details
    ISSN: 1432-0703
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: Abstract The principal aim of this study is to establish the kinetic behavior of cadmium by determining the concentrations of this element in the blood and in different tissues of wild birds exposed to environmental cadmium. We have studied a total of 118 birds living in the southeast of Spain, a zone with a Mediterranean climate and stopover point for important migratory species. The distribution pattern followed by the cadmium in our samples reveals that the kidney is the primary organ for accumulation, followed by the liver and, to lesser extent, the brain and bone. Low concentrations were found in the tissues and in the blood. The study of correlations between the different tissues and blood suggests a compartmental behavior of cadmium under these exposure conditions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00215805
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Lead and Cadmium in Red Deer and Wild Boar from Sierra Morena Mountains (Andalusia, Spain) (1998)
    Springer
    Bulletin of environmental contamination and toxicology 61 (1998), S. 730-737 
    Details
    ISSN: 1432-0800
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001289900822
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Environmental Exposure and Distribution of Lead in Four Species of Raptors in Southeastern Spain (1997)
    Springer
    Archives of environmental contamination and toxicology 33 (1997), S. 76-82 
    Details
    ISSN: 1432-0703
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: Abstract. The purpose of this study was to monitor exposure to lead in four species of raptors in Southeastern Spain (Murcia Region). Samples of liver, kidney, brain, blood, and bone from two species of diurnal raptors (European kestrel (Falco tinnunculus) and European buzzard (Buteo buteo)) and two species of nocturnal raptors (Eagle owl (Bubo bubo) and Little owl (Athene noctua)) were obtained during 1994. Relationships were found between size and age of the birds, the nearness to areas of human activity and lead concentrations in tissues. The lead distribution pattern reveals that the bone is the principle organ for accumulation (0.62–43 mg/Kg, dry weight), followed by the kidney (0.03–0.66 mg/Kg, wet weight), and liver (0.017–0.05 mg/Kg, w.w.), and to lesser extent, the brain (0.013–0.223 mg/Kg, w.w.). This distribution pattern indicates that raptors in Southeastern Spain were exposed to environmental low lead levels continuously over an extended period of time. Correlations between lead in bone and lead in soft tissues were higher in European buzzards (r = 0.87–0.95) and Eagle owl (r = 0.71–0.86) than those found in European kestrels (r = 0.53–0.58) and Little owls (r 〈 0). However, correlations between lead concentrations in soft tissues and in blood were high (r = 0.85–0.99).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002449900226
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    Paper (German National Licenses)
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