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KMID : 0191120120270010003
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Journal of Korean Medical Science
2012 Volume.27 No. 1 p.3 ~ p.9
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Cellular Toxicity of Surfactants Used as Herbicide Additives
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Song Ho-Yeon
Kim Young-Hee
Seok Su-Jin
Gil Hyo-Wook
Yang Jong-Oh
Lee Eun-Young
Hong Sae-Yong
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Abstract
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The cellular toxicities of surfactants, a solvent, and an antifreeze that are included in herbicide formulations were assessed by measuring their effects on membrane integrity, metabolic activity, mitochondrial activity, and total protein synthesis rate in a cell culture. Polyethylene glycol, propylene glycol, and monoethylene glycol exhibited no cellular toxicity even at a high concentration of 100 mM. Sodium lauryl ether sulfate and polyoxyethylene lauryl ether significantly damaged the membrane, disturbed cellular metabolic activity, and decreased mitochondrial activity and the protein synthesis rate; however, their toxicity was far below those of the severely toxic chemicals at comparable concentrations. The severely toxic category included polyoxypropylene glycol block copolymer, polyoxyethylene tallow amine, and polyoxyethylene lauryl amine ether. These surfactants were cytotoxic between 3.125 μM and 100 μM in a dose-dependent manner. However, the toxicity graph of concentration vs toxicity had a point of inflection at 25 μM. The slope of the toxicity graph was gentle when the concentration was below 25 μM and steep when the concentration was greater than 25 μM. In conclusion, our results suggest that the toxicity of surfactants be taken care of pertinent treatment of acute herbicide intoxication.
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KEYWORD
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Acute Poisoning, Herbicide, Surfactant, Cytotoxicity
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