Journal
CHEMOSPHERE
Volume 44, Issue 3, Pages 457-465Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0045-6535(00)00296-4
Keywords
malathion; DDT; DEET; ozone; gap junction intercellular communication
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Funding
- NIEHS NIH HHS [P42 ES04911-07] Funding Source: Medline
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The non-genotoxic effects of two commonly used pesticides, 1,1-bis (p-chlorophenyl)-2,2,2-trichloroethane (DDT) and malathion, and one widely used commercial insect repellent N,N-diethy-m-toluamide (DEET) on gap junction intercellular communication (GJIC) were determined using a rat liver epithelial cell line. Malathion and DDT reversibly inhibited GJIC in a treatment time- and dose-dependent manner at non-cytotoxic doses, whereas, DEET did not inhibit GJIC. Malathion was very reactive with ozone, while DEET and DDT did not react to any appreciable extent with ozone. The mixtures of ozonation products from malathion and DEET did not inhibit GJIC. The mixtures of ozonation by-products formed From DDT inhibited GJIC, but to a lesser extent than did DDT, itself. These results suggest that ozone can effectively remove malathion from solution without forming GJIC-toxic products, but is less effective in eliminating DEET and DDT from solution. (C) 2001 Elsevier Science Ltd. All rights reserved.
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