Genotoxic effects of tobacco extract on Chinese hamster ovary cells

Amit H. Trivedi, Bhavana J. Dave, Siddharth G. Adhvaryu

Research output: Contribution to journalArticlepeer-review

16 Scopus citations


Genotoxic effects of an aqueous extract of Nicotiana tabacum, a variety commonly used in India for chewing purposes, were analysed on CHO cells utilizing two different cytogenetic end-points, namely, chromosome aberration frequency and sister chromatid exchange frequency. Statistically significant elevations in the values of both the markers clearly indicated chromosome damaging effects of the extract. Elevations in chromosome aberration and sister chromatid exchange frequencies are suggestive of intrastrand and interstrand DNA cross-links following exposure to tobacco. The effects observed following treatment with low dose for longer duration are of relevance to the condition of the oral mucosa of the chronic smokeless tobacco users.

Original languageEnglish (US)
Pages (from-to)107-112
Number of pages6
JournalCancer Letters
Issue number1-2
StatePublished - Jun 15 1993
Externally publishedYes


  • Chinese hamster ovary cells
  • aqueous extract
  • chromosome aberration
  • genotoxicity
  • sister chromatid exchange
  • tobacco

ASJC Scopus subject areas

  • Oncology
  • Cancer Research


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