نتایج جستجو برای: sister chromatid exchange
تعداد نتایج: 203490 فیلتر نتایج به سال:
Sister chromatid exchanges and chromosomal aberrations were investigated in lymphocytes from 11 children with malignant lymphoma after cessation of treatment. Chemotherapy combined with radiation was administered, terminating between 4 months and 13 years before chromosome analyses were performed. The frequency of sister chromatid exchanges per chromosome was the same, 0.20, in the patients and...
Modification of sister chromatid exchanges and radiation-induced transformation in mouse C3H/10T 1/2 and Syrian hamster embryo cells by the tumor promoter 12-O-tetradecanoylphorbol-13-acetate and two retinoids, the trimethylmethoxyphenyl analog of N-ethyl retinamide and beta-all-trans-retinoic acid, has been studied. 12-O-tetradecanoylphorbol-13-acetate alone enhances, and retinoids alone reduc...
Sister chromatid cohesion is required for proper chromosome segregation during cell division. One group of proteins that is essential for sister chromatid cohesion during mitosis and meiosis is the RAD21/REC8 family of cohesin proteins. Two cohesin proteins are found in yeast; one that functions mainly in mitosis while the other participates in meiosis. In contrast, only one cohesin gene appear...
Aspartame (a-Laspartyl-L-phenylalanine 1-methylester) is a dipeptide low-calorie artificial sweetener that is widely used as a nonnutritive sweetener in foods and drinks. The safety of aspartame and its metabolic breakdown products (phenylalanine, aspartic acid and methanol) was investigated in vivo using chromosomal aberration (CA) test and sister chromatid exchange (SCE) test in the bone marr...
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