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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Micronucleus induction in mouse peripheral reticulocytes by 7,12-dimethylbenz[a]anthracene.

Micronucleus assays using mouse peripheral blood stained vitally on acridine orange (AO)-coated slides were evaluated at two laboratories with 7,12-dimethylbenz[a]anthracene (DMBA) and compared with the standard bone marrow assay. DMBA was administered by single intraperitoneal injection to CD-1 mice at doses ranging from 5 to 80 mg/kg, then 5 microliters of peripheral blood was sampled from a tail vein at 24, 48, 72, 96, and 120 h after treatment. Similar incidences of micronucleated young erythrocytes were observed in peripheral blood reticulocytes and bone marrow polychromatic erythrocytes. The dose response of micronucleated reticulocytes was delayed compared to that of micronucleated polychromatic erythrocytes. The dose-response curves after treatment with DMBA differed depending on the sampling times, which revealed the difficulty of obtaining accurate dose-response relations in the micronucleus assay. The present result demonstrated that the simple and rapid AO supravital staining method is a valuable and easier method for obtaining dose- and time-response data for quantification of micronucleus induction by chemicals.[1]

References

  1. Micronucleus induction in mouse peripheral reticulocytes by 7,12-dimethylbenz[a]anthracene. Suzuki, T., Tamai, K., Kodama, Y., Asita, A.O., Matsuoka, A., Sofuni, T., Kurita, M., Ohtsuki, H., Hiwatashi, T., Hayashi, M. Mutat. Res. (1992) [Pubmed]
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