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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Newcombe, Chris Raab, Andrea Williams, Paul N. Deacon, Claire Haris, Parvez I. Meharg, Andrew A. Feldmann, Jörg |
| Description | Country affiliation: United kingdom Author Affiliation: Newcombe C ( TESLA (Trace Element Speciation Laboratory) and Marine Biodiscovery Laboratory, University of Aberdeen, Aberdeen, Scotland, UK.) |
| Abstract | Arsenobetaine has always been referred to as a non-toxic but readily bioavailable compound and the available data would suggest that it is neither metabolised by nor accumulated in humans. Here this study investigates the urine of five volunteers on an arsenobetaine exclusive diet for twelve days and shows that arsenobetaine was consistently excreted by three of the five volunteers. From the expected elimination pattern of arsenobetaine in rodents, no significant amount of arsenobetaine should have been detectable after 5 days of the trial period. The arsenobetaine concentration found in the urine was constant after 5 days and varied between 0.2 and 12.2 microg As per L for three of the volunteers. Contrary to the established belief that arsenobetaine is neither accumulated nor generated by humans, the presented results would suggest that either accumulated arsenobetaine in the tissues is slowly released over time or that arsenobetaine is a human metabolite of dimethylarsinic acid or inorganic arsenic from the trial food, or both. Either possibility is intriguing and raises fundamental questions about human arsenic metabolism and the toxicological and environmental inertness of arsenobetaine. |
| File Format | HTM / HTML |
| ISSN | 14640325 |
| Issue Number | 4 |
| Volume Number | 12 |
| e-ISSN | 14640333 |
| Journal | Journal of Environmental Monitoring |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Publisher Date | 2010-04-01 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | Subscribed |
| Subject Keyword | Discipline Environmental Health Arsenicals Urine Adult Analysis Metabolism Diet Humans Male Middle Aged Oryza Sativa Chemistry Quality Control Journal Article Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Public Health, Environmental and Occupational Health Management, Monitoring, Policy and Law |
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