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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 

Sodium 2,3-dimercapto-1-propanesulfonate (DMPS) treatment does not redistribute lead or mercury to the brain of rat.

Since there has been concern about whether any of the chelating agents used therapeutically might cause an initial redistribution of heavy metals to the brain and since the sodium salt of 2,3-dimercapto-1-propanesulfonic acid (Dimaval, DMPS) has been used to treat heavy metal intoxication in humans, the hypothesis that DMPS does not redistribute and increase lead or mercuric ions in the brains of rats was tested. Lead acetate at a concentration of 50 mg/l was made available in the drinking water of rats for 86 days. Other rats received intraperitoneal injections of 0.50 mg Hg/kg (as mercuric chloride) each day for 5 days a week for a total of 32 or 41 days. Animals were divided into groups and given, i.p., either 0.27 mmol DMPS/kg body weight or saline, each day for 1, 2, 3 or 4 days. Lead or mercury concentrations of the brain were determined after each group received DMPS for the different number of days. DMPS treatment did not result in any initial increase of lead or mercuric ions in the brain. The mercury content of the kidney decreased. The results of these experiments demonstrated that lead or mercuric ions were not redistributed to or increased in the brains of rats during the initial days of DMPS treatment.[1]

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