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Titolo:
Effects of nonylphenol ethoxylate exposure on reproductive output and bioindicators of environmental estrogen exposure in fathead minnows, Pimephalespromelas
Autore:
Nichols, KM; Snyder, EM; Snyder, SA; Pierens, SL; Miles-Richardson, SR; Giesy, JP;
Indirizzi:
Michigan State Univ, Dept Zool, E Lansing, MI 48824 USA Michigan State Univ E Lansing MI USA 48824 Zool, E Lansing, MI 48824 USA Michigan State Univ, Dept Fisheries & Wildlife, E Lansing, MI 48824 USA Michigan State Univ E Lansing MI USA 48824 dlife, E Lansing, MI 48824 USA Michigan State Univ, Inst Environm Toxicol, E Lansing, MI 48824 USA Michigan State Univ E Lansing MI USA 48824 xicol, E Lansing, MI 48824 USA Michigan State Univ, Dept Pathol, E Lansing, MI 48824 USA Michigan State Univ E Lansing MI USA 48824 athol, E Lansing, MI 48824 USA Michigan State Univ, Natl Food Safety & Toxicol Ctr, E Lansing, MI 48824 USA Michigan State Univ E Lansing MI USA 48824 l Ctr, E Lansing, MI 48824 USA
Titolo Testata:
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
fascicolo: 3, volume: 20, anno: 2001,
pagine: 510 - 522
SICI:
0730-7268(200103)20:3<510:EONEEO>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Soggetto:
IMMUNOSORBENT-ASSAY ELISA; MIXED BACTERIAL CULTURES; CYPRINUS-CARPIO; POLYETHOXYLATE SURFACTANTS; ALKYLPHENOL ETHOXYLATES; AQUATIC ENVIRONMENT; ENGLISH SOLE; COMMON CARP; PUGET-SOUND; VITELLOGENIN;
Keywords:
vitellogenin; hormones; estradiol; reproduction; endocrine;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
69
Recensione:
Indirizzi per estratti:
Indirizzo: Giesy, JP Michigan State Univ, Dept Zool, E Lansing, MI 48824 USA MichiganState Univ E Lansing MI USA 48824 ansing, MI 48824 USA
Citazione:
K.M. Nichols et al., "Effects of nonylphenol ethoxylate exposure on reproductive output and bioindicators of environmental estrogen exposure in fathead minnows, Pimephalespromelas", ENV TOX CH, 20(3), 2001, pp. 510-522

Abstract

Nonylphenol ethoxylates (NPEOs) were evaluated in the laboratory for potential effects on the reproductive physiology and fecundity of fathead minnows (Pimephales promelas). Groups of three adult male and three female fathead minnows were exposed in a continuous flow-through system to 0, 0.21, 0.65, 2.1, or 7.9 mug NPEO/L for 42 d. Rabbit anti-goldfish vitellogenin (VTG) antiserum was prepared and a competitive enzyme-linked immunosorbent assay (ELISA) was adapted for measurement of plasma VTG in fish following exposure. Plasma 17 beta -estradiol (E2) and testosterone (T) were also quantifiedby ELISA at the end of the exposure. Neither survival nor fecundity of fathead minnows exhibited a concentration-dependent response to NPEOs. No significant differences were observed in plasma VTG concentrations among treatments for males or females. Mean plasma VTG concentrations in females rangedfrom 291.7 to 895.1 mug VTG/ml among treatments and did not overlap with mean concentrations measured in the plasma of males, which ranged from less than the method detection limit (0.27 mug VTG/ml) to 3.2 mug VTG/ml. PlasmaE2 concentrations exhibited a significant difference between males and females within all NPEO treatments, but no differences were observed among treatments. Similarly, plasma T concentrations did not exhibit a concentration-dependent response to NPEOs.

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Documento generato il 05/04/20 alle ore 22:57:21