2004
DOI: 10.1016/j.aquatox.2004.03.018
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Androgenic and estrogenic effects of the synthetic androgen 17α-methyltestosterone on sexual development and reproductive performance in the fathead minnow (Pimephales promelas) determined using the gonadal recrudescence assay

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Cited by 84 publications
(54 citation statements)
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“…Androgenic effects in fish range from impacts on luteinizing hormone/follicle stimulating hormone (LH/FSH; Shao et al, 2013), depression of steroid hormones (Sharpe et al, 2004), male-skewed sex ratios (Forlin et al, 2004), masculinisation of females (Orlando et al, 2007) and increased plasma testosterone (T) levels (Pawlowski et al, 2004). Androgens have the ability to exert both estrogenic and androgenic effects through aromatization (Ankley et al, 2000), the conversion of T to 17β-estradiol (E 2 ) by the aromatase enzyme.…”
Section: Introductionmentioning
confidence: 99%
“…Androgenic effects in fish range from impacts on luteinizing hormone/follicle stimulating hormone (LH/FSH; Shao et al, 2013), depression of steroid hormones (Sharpe et al, 2004), male-skewed sex ratios (Forlin et al, 2004), masculinisation of females (Orlando et al, 2007) and increased plasma testosterone (T) levels (Pawlowski et al, 2004). Androgens have the ability to exert both estrogenic and androgenic effects through aromatization (Ankley et al, 2000), the conversion of T to 17β-estradiol (E 2 ) by the aromatase enzyme.…”
Section: Introductionmentioning
confidence: 99%
“…Mögliche Endpunkte zur Erfassung von endokrin wirksamen Substanzen mit In-vivo-Tests sind: • Physiologische Veränderungen: Vitellogeninkonzentrationen (Ackermann et al 2002b;Hansen 2000;Kang et al 2002;Kunz und Fent 2006Li et al 2008;OECD 2006a;Routledge et al 1998;Segner et al 2003), 11-Keto-Testosteron (Schäfers 2007), Spiggin-Kon zentra tio nen (Katsiadaki et al 2002) oder andere physiologisch relevante Hormonkonzentrationen (Kloas 2002), Thyroidstoffwechsel (Kloas 2002), Aromatasehemmung (Cheshenko et al 2008;Oehlmann et al 2007); • Morphologische Veränderungen der primären oder sekundären Geschlechtsmerkmale: Geschlechtsdifferenzierungen Kloas et al 1999;OECD 2006a), sekundäre Geschlechtsmerkmale (Kunz et al 2006a;Weisbrod et al 2007), Gewicht und Körpermaße der Geschlechtsorgane Schulte-Oehlmann et al 2001;Weisbrod et al 2007), gonadosomatischer Index (GSI) (Baatrup und Junge 2001;van den Belt et al 2004;Kang et al 2002;Li et al 2008;OECD 2006a;Segner et al 2003), Gonadenhistologie (Kunz et al 2006a;Miles-Richardson et al 1999;Pawlowski et al 2004;Weisbrod et al 2007) oder Spermienzählun-gen (Baatrup und Junge 2001), Intersexstadien (Metcalfe et al 2001;Schulte-Oehlmann et al 2001), Imposexstadien Oehlmann et al 2007); • Reproduktionstoxikologische Parameter:…”
Section: In-vivo-testverfahrenunclassified
“…The synthetic androgen MT, widely used as a reference chemical to induce male monosex, is considered an endocrine disrupter in fish (Smith, 1974;Pandian and Sheela, 1995;Ankley et al, 2001;Zerulla et al, 2002;Arslan and Phelps, 2004;Hornung et al, 2004;Pawlowski et al, 2004;Kang et al, 2008;Grisolia et al, 2009). However, few studies have been performed to assess the possible genotoxic effect of MT or to examine any aspect of DNA damage caused by testosterone treatment in organs of intact animals.…”
Section: Introductionmentioning
confidence: 99%