Sister-chromatid exchange analysis in vivo using different 5-bromo-2′-deoxyuridine-labeling systems

E. Madrigal-Bujaidar, M. A. Sánchez-Sánchez

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

The quality of sister-chromatid differentiation, the basal rate of sister-chromatid exchanges (SCE) and the rate of cellular proliferation were studied in untreated and mitomycin C(MMC)-treated mice, using 4 different systems for administering 5-bromodeoxyuridine (BrdU): BrdU adsorbed to charcoal, tablets of BrdU mixed with cholesterol, tablets of BrdU coated with agar and tablets of BrdU partially coated with paraffin. The quality of sister-chromatid differentiation with the studied methods showed a useful stain contrast in an average of 75.4% second-division mitosas, with the lowest average occurring in mice implanted with agarcoated tablets. The frequency of SCE and the replicative index were similar in mice administered BrdU by all 4 systems both in control and in MMC-treated mice. From a practical point of view, the charcoal method could be done the fastest.

Original languageEnglish
Pages (from-to)15-19
Number of pages5
JournalMutation Research Letters
Volume262
Issue number1
DOIs
StatePublished - Jan 1991

Keywords

  • (Mouse)
  • 5-Bromodeoxyuridine labeling
  • Cholesterol
  • Mitomycin C
  • Sister-chromatid exchange

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