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Octylphenol, an environmental oestrogen, affects oocyte maturation in cattle

Published online by Cambridge University Press:  20 November 2017

P Pocar
Affiliation:
Dept Anatomy and Cell Biology, Martin Luther University Faculty of Medicine, D-06057 Halle (Saale), Germany
R Augustin
Affiliation:
Dept Anatomy and Cell Biology, Martin Luther University Faculty of Medicine, D-06057 Halle (Saale), Germany
F Gandolfi
Affiliation:
Ist Anatomy of Domestic Animals, University of Milan, Faculty of Veterinary Medicine, 20134 Milan, Italy
B Fischer
Affiliation:
Dept Anatomy and Cell Biology, Martin Luther University Faculty of Medicine, D-06057 Halle (Saale), Germany
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Extract

4-tert-octylphenol (OP) is an alkylphenolic compound formed as metabolite of some nonionic surfactants that are widely used in industrial detergents, as plastic additives, dispersant for insecticides, etc. (Naylor et al., 1992). OP accumulates in adipose tissue. Micromolar concentrations of these compounds may constitute health hazards to animal cells. Furthermore, it has previously been shown to exert oestrogenic activity in vivo and in vitro (White et al., 1994). A growing concern about “endocrine disruptors” and their impact on oestrogen-dependent phenomena led us investigate the effects of OP on oocyte maturation. For variuos reasons bovine oocytes were chosen as the model system. We examined the effects of OP exposure on oocyte nuclear maturation in vitro and on the expression of oestrogen receptors in cumulus cells.

Type
Poster Presentations
Copyright
Copyright © The British Society of Animal Science 2001

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References

Naylor, G., Mierure, J., Weeks, J., Castaldi, F. and Romano, R. (1992) Alkylphenol ethoxylates in the environment; J. Am. Oil Chem. Soc. 69, 695703 CrossRefGoogle Scholar
White, R., Jobling, S., Hoare, S. A., Sumpter, J. P. and Parker, M. G. (1994) Environmentally persistent alkylphenolic compounds are estrogenic Endocrinology 135, 175182 CrossRefGoogle ScholarPubMed
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