Elsevier

Environmental Research

Volume 88, Issue 2, February 2002, Pages 129-133
Environmental Research

Regular Article
Butyltin Compounds in Human Liver

https://doi.org/10.1006/enrs.2001.4321Get rights and content

Abstract

Intake of marine food is the main source of butyltin exposure in humans. Health effects following exposure to butyltin compounds are usually in the immune system, but endocrine effects of butyltin from a variety of marine species have been documented. The information on human exposure to butyltin compounds and hepatic deposition is limited. The present study include 18 consecutively sampled human livers analyzed for butyltin compounds. Dibutyltin (DBT) concentrations varied between 0.8 and 28.3 ng/g with a mean concentration of 9.0 ng/g. Significantly lower concentrations of monobutyltin (MBT) were observed, ranging from 0.3 to 4.7 ng/g with a mean value of 1.6 ng/g. Age and DBT/MBT ratio were significantly associated. We suggest that younger men have more recent exposures or have a lower capacity to debutylate DBT than older men and would therefore potentially be more susceptible to butyltin toxicity. Given the interperson variability observed in our limited group of men, we cannot exclude that thresholds for either immunotoxicity or effects on the endocrine system may occur due to exposure to butyltin compounds alone or in combination with other environmental toxicants with similar target organs.

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