Detection of in vivo DNA Damage Induced by Ethanol in Multiple Organs of Pregnant Mice Using the Alkaline Single Cell Gel Electrophoresis (Comet) Assay

Journal of Veterinary Medical Science

Ryoko KIDO¹  Itaru SATO¹  Shuji TSUDA¹ 

[1] Department of Applied Veterinary Science, The Doctoral Course of the United Graduate School of Veterinary Science, Gifu University

关键词: Comet assay;    DNA damage;    ethanol;    pregnant mouse;   

DOI  :  10.1292/jvms.68.41

学科分类：兽医学

来源: Japanese Society of Veterinary Science

【 摘 要 】

References(27)Cited-By(16)Ethanol is principal ingredient of alcohol beverage, but considered as human carcinogen, and has neurotoxicity. Alcohol consumption during pregnancy often causes fetal alcohol syndrome. The DNA damage is one of the important factors in carcinogenicity or teratogenicity. To detect the DNA damage induced by ethanol, we used an in vivo alkaline single cell gel electrophoresis (Comet) assay in pregnant mice organs and embryos. Pregnant ICR mice on Day 7 of gestation were treated with 2, 4 or 8 g/kg ethanol, and maternal organs/tissues and embryos were subjected to the Comet assay at 4, 8, 12 and 24 hr after ethanol treatment. Four and 8 g/kg ethanol induced DNA damage in brain, lung and embryos at 4 or 8 hr after the treatment. Two g/kg ethanol did not cause any DNA damage, and 8 g/kg ethanol only increased the duration of DNA damage without distinct increase in the degree of the damage. No significant DNA damage was observed in the liver. To detect the effect of acetaldehyde, disulfiram, acetaldehyde dehydrogenase inhibitor, was administered before 4 g/kg ethanol treatment. No significant increase of DNA damage was observed in the disulfiram pre-treated group. These data indicate that ethanol induces DNA damage, which might be related to ethanol toxicity. Since pre-treatment of disulfiram did not increase DNA damage, DNA damage observed in this study might not be the effect of acetaldehyde.

【 授权许可】

Unknown