Oxidative stress and the fetotoxicity of alcohol consumption during pregnancy.

Amini, Seyed Asadollah. and DUNSTAN, Hugh. and DUNKLEY, Peter. and MURDOCH, Raymond. (1996) Oxidative stress and the fetotoxicity of alcohol consumption during pregnancy. Free radical biology & medicine, 21 (3).


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Pregnant Quackenbush Special mice were exposed to ethanol under semiacute (3.0 g/kg body weight intragastrically, days 7 to 12 of pregnancy), and chronic conditions (15% ethanol in drinking water for 5 weeks before and during pregnancy) to assess whether embryo-fetotoxic actions of the drug involve oxidative stress effects. Effects were monitored both in the maternal system and embryo. Alcohol compromised the maternal system by increasing the generation of lipid peroxides in the liver. It also decreased glutathione and vitamin E levels, and glutathione peroxidase and superoxide dismutase activities in this organ. Glutathione peroxidase activity in the maternal blood decreased. Only minor alcohol-induced changes occurred in the uterine endometrium, including decreased xanthine oxidase and increased gamma-glutamyl transpeptidase. Similarly, only few changes were induced in day-12 embryos by alcohol. In this case, glutathione content and xanthine oxidase activity decreased while glutathione reductase activity increased following exposure to the chronic regime. With the possible exception of the maternal liver where evidence of oxidative damage was detected, these results do not reflect substantial changes in the antioxidant defences of either the pregnant mouse or embryo. However, the changes may contribute to the growth retarding and other fetotoxic effects of alcohol when they are totalled into the multifactorial actions of the drug.

Item Type: Article
Uncontrolled Keywords: Ethanol, QS mice, Embryo-fetotoxicity, Antioxidants, Lipid peroxides, Oxidative stress, Fetal Alcohol Syndrome, Pregnancy, Free radicals
Subjects: WQ Obstetrics
QU Biochemistry
Divisions: Reserach Vice-Chancellar Department > Clinical Biochemistry Research Center
Depositing User: Users 1 not found.
Date Deposited: 14 Nov 2017 04:30
Last Modified: 19 Feb 2018 05:03
URI: http://eprints.skums.ac.ir/id/eprint/6349

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