Two examples are described of the use of NMR spectroscopy to study the modification of DNA structure by carcinogens. The reaction of ethylene dibromide involves initial conjugation with glutathione, catalysed by glutathione S-transferase. Reaction of this adduct with DNA occurs at N7 of guanine. Thr
Hyperplasia, partial hepatectomy, and the carcinogenicity of aflatoxin B1
β Scribed by B.D. Roebuck
- Book ID
- 102302520
- Publisher
- John Wiley and Sons
- Year
- 2004
- Tongue
- English
- Weight
- 103 KB
- Volume
- 91
- Category
- Article
- ISSN
- 0730-2312
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β¦ Synopsis
Abstract
Generalized cellular hyperplasia has long been associated as a factor in the causation of liver cancer. Parenchymal cell hyperplasia resulting from hepatotoxins, viruses, parasites, or malnutrition is exceedingly variable as to when it occurs, its extent, and its duration. Partial hepatectomy has been used as an experimental tool precisely because the timing and extent of hyperplasia can be known and controlled. With regards to aflatoxin B~1~ (AFB~1~) carcinogenesis, partial hepatectomy has produced variable results. An explanation appears to reside in the hepatotoxic properties of AFB~1~ that enhance the early stages of carcinogenesis. Β© 2003 WileyβLiss, Inc.
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