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초록· 키워드

We investigated the effects of genistein in mammary gland carcinogenesis by incoporation of 2H from ²H₂O into the deoxyribose (dR) moiety of purine deoxyribonucleotides in dividing cells. Female Sprague?Dawley rats were fed estrogen free AIN-93G diet starting on 1 week before breeding and continuing through pregnancy and lactation. Female pups were assigned to the following groups on postnatal day 16 and fed AIN-93G diet: vehicle (dimethylsulfoxide) (DMSO); genistein; estradiol benzoate(EB). On postnatal days 16, 18 and 20, female pups were injected subcutaneously with 250 μg genistein/g body wt, 500 ng EB/g body wt or an equivalent volume of the vehicle. At day 50 postpartum, half of each group were gavaged with 60mg dimethylbenz[a]anthracene(DMBA) in perila oil. After 1 week of DMBA treatment, all animals were labeled with ²H₂O by administration of 4% ²H₂O in drinking water after single intraperitonial bolus injection with 99.9% ²H₂O until sacrifice on postnatal day 81. The timedependent weight gains were observed in all groups throughout the experimental period. The enrichment of body ²H₂O was attained at 1.84-2.47% th ... 전체 초록 보기
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UCI(KEPA) : I410-ECN-0101-2009-325-017134326