首页 | 本学科首页   官方微博 | 高级检索  
   检索      


Male and female reproductive toxicity induced by sub-chronic ethanol exposure in CF-1 mice
Authors:Elisa Cebral  Ximena C Abrevaya  Marta Dolores Mudry
Institution:1.Laboratorio de Reproducción y Fisiopatología Materno-Embrionaria, Instituto de Fisiología, Biología Molecular y Neurociencias (IFIBYNE-CONICET), Departamento de Biodiversidad y Biología Experimental (DBBE). Facultad de Ciencias Exactas y Naturales (FCEyN),Universidad de Buenos Aires (UBA),Buenos Aires,Argentina;2.Consejo de Investigaciones Científicas y Técnicas (CONICET),Buenos Aires,Argentina;3.Instituto de Astronomía y Física del Espacio (IAFE) UBA-CONICET,Buenos Aires,Argentina;4.Grupo de Investigación en Biología Evolutiva (GIBE), Departamento de Ecología, Genética y Evolución (EGE), Facultad de Ciencias Exactas y Naturales (FCEyN),Universidad de Buenos Aires (UBA),Buenos Aires,Argentina;5.LARFIMAE-CONICET,Ciudad Universitaria,Buenos Aires,Argentina
Abstract:Since genetic damage induced by ethanol exposure is controversial and incomplete and because germ and somatic cells constitute bioindicators for monitoring reproductive toxicity and genotoxic actions of ethanol consumption, the purpose of the present investigation was to evaluate morphological sperm, oocyte alterations and parental genotoxic effects after sub-chronic ethanol intake in the CF-1 outbred mouse strain. Ethanol 10% was administered to CF-1 adult male (treated males, TM) and female (treated females, TF) mice for 27 days, whereas water was given to controls from both sexes too (CM and CF). Post-treatment micronucleus frequency (MN-PCE/1,000/mouse) and gamete morphology were evaluated. To test whether change of female reproductive status results in maternal genotoxicity, CF-1 females received ethanol 10% (exposed group, periconceptionally treated females (PTF)) or water (control group, pregnant control females (PCF)) in drinking water for 17 days previous and up to 10 days of gestation. TM had a high percentage of abnormal spermatozoa vs CM (p < 0.001) and elevated parthenogenetic activated oocyte frequency appeared in TF vs CF (p < 0.001). Sub-chronic ethanol ingestion induced increased MN frequency in TM and TF (p < 0.01). In PTF, where blood alcohol concentrations were between 19–28 mg/dl, very significantly increased MN frequency was found vs PCF (p < 0.01), whereas MN values were similar to TF. These results show that sub-chronic alcohol ingestion in CF-1 mice produces sperm head dysmorphogenesis and oocyte nuclear anomalies, suggesting that morphological abnormalities in germ cells are probably related to parental genotoxicity after ethanol consumption.
Keywords:
本文献已被 PubMed SpringerLink 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号