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  • 1
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    Genetic variation in susceptibility to endocrine disruption by estrogen in mice (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-08-24
    Description: Large (more than 16-fold) differences in susceptibility to disruption of juvenile male reproductive development by 17beta-estradiol (E2) were detected between strains of mice. Effects of strain, E2 dose, and the interaction of strain and E2 dose on testes weight and spermatogenesis were all highly significant (P 〈 0.0001). Spermatid maturation was eliminated by low doses of E2 in strains such as C57BL/6J and C17/Jls. In contrast, mice of the widely used CD-1 line, which has been selected for large litter size, showed little or no inhibition of spermatid maturation even in response to 16 times as much E2. Product safety bioassays conducted with animals selected for fecundity may greatly underestimate disruption of male reproductive development by estradiol and environmental estrogenic compounds.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Spearow, J L -- Doemeny, P -- Sera, R -- Leffler, R -- Barkley, M -- New York, N.Y. -- Science. 1999 Aug 20;285(5431):1259-61.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Section of Neurobiology, Physiology and Behavior, University of California at Davis, Davis, CA 95616, USA. jlspearow@ucdavis.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10455051" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Body Weight/drug effects ; Dose-Response Relationship, Drug ; Estradiol/*pharmacology/toxicity ; *Genetic Variation ; Litter Size ; Male ; Mice ; Mice, Inbred Strains ; Organ Size/drug effects ; Species Specificity ; Spermatids/drug effects ; Spermatogenesis/*drug effects ; Testis/anatomy & histology/*drug effects ; Toxicity Tests
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
    Electronic Resource
    Electronic Resource
    Macrophage aggregates in gilthead sea bream fed copper, iron and zinc enriched diets (2000)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of fish biology 57 (2000), S. 0 
    Details
    ISSN: 1095-8649
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Gilthead sea bream Sparus aurata from consecutive year classes (0+ and 1+) and from the same parent stock were fed four diets, three of which were fortified with copper, iron and zinc. Concentrations of these elements were little affected by the diet. Hepatic, renal and splenic tissues sections were examined to detect the influence of the diet on the number and morphology of macrophage aggregates (MAs); in particular their structure was examined in the spleen. Three different types of MAs were detected: (1) unstructured, (2) partially structured and scarcely defined and (3) fully structured and well defined. Melanin was the most abundant pigment in the pigmented macrophages which form MAs and the amount of this pigment was influenced by season. Ferritin, in contrast with previous data obtained in other fish species, was more abundant in renal than in splenic MAs. Significant differences in splenic MA numbers among fish fed different diets and among different periods of the year were detected. The results suggest that a polyfactorial regulation could act on the splenic MA number in gilthead sea bream.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1095-8649.2000.tb02184.x
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    Paper (German National Licenses)
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  • 3
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    Composition of organic and conventionally produced sunflower seed oil (2004)
    Wiley
    Details
    Publication Date: 2004-12-01
    Print ISSN: 0003-021X
    Electronic ISSN: 1558-9331
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Published by Wiley
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