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Experimental studies on arsenic absorption routes in rats

By Tadeusz Dutkiewicz

Abstract

Pentavalent inorganic arsenic was introduced by intravenous, intratracheal, gastrointestinal, and skin application in doses 0.1 to 4.0 mg/kg in rats. Isotopic technics were applied by use of As74. It was found that the dynamics of arsenic distribution in the body as well as the kinetics of its elimination in urine and feces varies very substantially, depending on the mode of administration. Intravenous administration of As causes immediate appearance of arsenic in most tissues and a slow decrease of its concentrations in time. Similar situations could be observed with intratracheal dosing, because arsenic is very rapidly absorbed from the site of administration. Concentration in tissues increases more slowly after gastrointestinal resorption. Skin application causes first the accumulation of arsenic in the skin and next continuous, slow transport from the skin into the blood stream

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OAI identifier: oai:pubmedcentral.nih.gov:1637393
Provided by: PubMed Central
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