ISSN:
0263-6484
Keywords:
Nucleic acids
;
aldehydes
;
lipid peroxidation
;
DNA cross-links
;
DNA single strand breaks
;
cultured mammalian cells
;
Chemistry
;
Biochemistry and Biotechnology
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Biology
,
Medicine
Notes:
Alkaline elution was employed to study DNA damage in CHO-Kl cells treated with a series of biotic and xenobiotic aldehydes. DNA cross-linking was measured in terms of the reduction in the effect of methyl methanesulphonate on the kinetics of DNA elution and was observed in cells treated with formaldehyde, acetaldehyde, methylglyoxal and malonaldehyde. Propionaldehyde, valeraldehyde, hexanal and 4-hydroxynonenal produced DNA single-strand breaks, or lesions which were converted to breaks in alkali. Both types of DNA damage occurred in cells exposed to malealdehyde. These findings support the hypothesis of a carcinogenic effect of the aldehydic products (malonaldehyde, methylglyoxal, propionaldehyde, hexanal, 4-hydroxynonenal) released in biomembranes during lipid peroxidation.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cbf.290020411
