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. 1996 Oct;34(10):959-62.
doi: 10.1016/s0278-6915(96)00052-x.

Lethality induced by stannous chloride on Escherichia coli AB1157: participation of reactive oxygen species

F J Dantas  1 , M O Moraes, E F Carvalho, J O Valsa, M Bernardo-Filho, A Caldeira-de-Araújo
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Lethality induced by stannous chloride on Escherichia coli AB1157: participation of reactive oxygen species

F J Dantas et al. Food Chem Toxicol. 1996 Oct.

Abstract

Stannous chloride (SnCl2) has been widely used in nuclear medicine as a reducing agent of pharmaceutical products radiolabelled with technetium-99m. To verify whether the lethality induced by this salt could be mediated by reactive oxygen species (ROS), Escherichia coli cultures were treated with SnCl2 in the presence of catalase, ROS scavengers or metal-ion chelators. The inactivation effect, as measured by survival determination, was abolished by thiourea, sodium benzoate, dipyridyl or catalase. The results suggest the participation of ROS, generated by a Fenton-like reaction, in the lethal effect induced by SnCl2.

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