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Antioxidative treatment diminishes ethanol-induced congenital malformations in the rat
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Cell Biology. (Teratology)
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Cell Biology. (Teratology)
2006 (English)In: Alcoholism: Clinical and Experimental Research, ISSN 0145-6008, E-ISSN 1530-0277, Vol. 30, no 10, 1752-1760 p.Article in journal (Refereed) Published
Abstract [en]

Background: Intrauterine exposure to ethanol causes embryonic and fetal growth retardation and maldevelopment. Oxidative stress in mother and offspring has been suggested to be part of the teratogenic mechanism, and supplementation of antioxidative agents to the pregnant women may therefore be of value in future prophylactic treatment regimen. There is a need for in vivo experimental work in this field, and in the present study, our aim was to investigate whether chronic ethanol consumption induced congenital malformations in rats and, if so, whether dietary supplementation of vitamin E (alpha-tocopherol) diminished such maldevelopment.

Methods: Female Sprague-Dawley rats were given drinking water containing 20% ethanol and half of these received food containing 5% vitamin E. Non-ethanol-exposed female rats, with or without vitamin E treatment, served as controls. The pregnancy was interrupted on gestational day 20 when the offspring was evaluated morphologically and fetal hepatic 8-iso-PGF(2 alpha) levels were measured to assess the degree of fetal oxidative stress.

Results: Exposure to 20% ethanol increased maternal blood ethanol to 1.5 promille and increased resorption and malformation rates in the offspring. Maternal vitamin E treatment did not affect blood ethanol levels, but normalized fetal development. The fetal hepatic levels of 8-iso-PGF(2 alpha) were increased in the ethanol-exposed group and normalized by vitamin E treatment of the mother.

Conlcusions: Ethanol exposure disturbs embryogenesis partly by enhanced oxidative stress, and the adverse effects can be ameliorated by antioxidative treatment.

Place, publisher, year, edition, pages
2006. Vol. 30, no 10, 1752-1760 p.
Keyword [en]
ethanol, rat, oxygen radical(s), isoprostane(s), 8-iso-PGF(2 alpha), vitamin E (tocopherol)
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:uu:diva-22904DOI: 10.1111/j.1530-0277.2006.00208.xISI: 000240818600019PubMedID: 17010142OAI: oai:DiVA.org:uu-22904DiVA: diva2:50677
Available from: 2007-01-23 Created: 2007-01-23 Last updated: 2017-12-07Bibliographically approved

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