Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"Xenoestrogen"”.
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Xenoestrogen-Specific Mechanisms of Developmental Reprogramming Correlate With Gene Expression and Tumor Development
… We have shown that neonatal exposure to the xenoestrogen diethylstilbestrol (DES) can developmentally reprogram the reproductive tract in genetically susceptible Eker rats giving rise to complete penetrance of uterine leiomyoma. Based on this, we hypothesized that xenoestrogens, including …
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Zebrafish as a Model for Studying Estrogen Signaling and Estrogenic Endocrine Disruption
… embryos/larvae are an emerging model used in xenoestrogen studies. However, endogenous estrogen signaling in developing zebrafish embryos/larvae is still poorly understood. In the studies of this dissertation, first a whole-genome analysis of estrogen regulated genes in zebrafish …
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Die Wirkung estrogen aktiver Umweltchemikalien auf Fische : Untersuchung reproduktionsrelevanter Parameter bei Regenbogenforelle und Zebrabärbling
… von Vitellogenin (Vg) nach 17b-Estrogen- und Xenoestrogen-Induktion in der Leber männlicher Fische zu etablieren sowie die Wirkung verschiedener umweltrelevanter, estrogener Chemikalien auf eine Fischpopulation zu untersuchen. Hierzu wurden immunhisto- und immuncytochemische Untersuchungen an …
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Influence of Insulin, Insulin-Like Growth Factor I and Sex Steroids On the Regulation of the Vitellogenin Receptor In Developing Oocytes of Largemouth Bass (Micropterus Salmoides)
… exposed <italic>in vivo</italic>. Finally, the xenoestrogen 17á-ethinyl estradiol (EE<sub>2</sub>), but not bisphenol-A (BPA), was able to modulate promoter activity via Esrs and repress <italic>vtgr</italic> expression <italic>in vivo</italic> in a manner similar to E<sub>2</sub>. These results …
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The direct effects of estradiol and several xenoestrogens on cell numbers of early- vs. late-stage prostate cancer cells
… and late prostate cancer cells. Then several xenoestrogens (XEs) were evaluated for their ability to increase or decrease prostate cancer cell numbers. Coumesterol and genistein unexpectedly stimulated prostate cancer cell growth, while resveratrol minimally increased cell numbers in both …
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Der Einfluss von hormonell wirksamen Umweltchemikalien auf die Populationsökologie von Gammarus fossarum
Bei zwei Fließgewässern (Lockwitzbach und Körsch) wurde ein Expositions- und Effektmonitoring an Probenahmestellen jeweils ober- und unterhalb des Einleiters eines kommunalen Klärwerks über einen Zeitraum von zwei Jahren durchgeführt. Gegenstand der vorliegenden Arbeit waren dabei die …