ANSWERS: 3
  • "It has long been thought that tar and other chemicals in tobacco were the main cause of cancer but recent studies showed that nicotine alone has carcinogenic properties by inhibiting the natural ability of the body to get rid of cells with significant genetic damage before they turn cancerous." (quoted from http://en.wikipedia.org/wiki/Nicotine)
  • "Nicotine itself is not carcinogenic, according to the International Agency for Research on Cancer, but is implicated in heart disease." (quoted from http://jnci.oxfordjournals.org/cgi/content/full/91/6/502) "Nicotine is not in itself carcinogenic, but has been shown to be co-carcinogenic with benzo(a)pyrene [also found in tobacco smoke] in causing skin cancer in mice" (quoted from http://arjournals.annualreviews.org/doi/abs/10.1146/annurev.me.37.020186.000321) In conclusion, while nicotine itself is not carcinogenic it is shown to be co-carcinogenic with other chemicals, including those found in cigarette smoke. Once a person has lung cancer, nicotine can interfere with body's natural ability (as well as the ability of cancer fighting drugs) to get rid of the cancer. (See http://www.ncbi.nlm.nih.gov/pubmed/7848904) To answer your question in short, based on the current studies, nicotine by itself, as in a skin patch, does not cause lung cancer.
  • i think it is

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