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Assessing the Dietary Bioavailability of Metals Associated with Natural Particles: Extending the Use of the Reverse Labeling Approach to Zinc
We extend the use of a novel tracing technique to quantify the bioavailability of zinc (Zn) associated with natural particles using snails enriched with a less common Zn stable isotope. Lymnaea stagnalis is a model species that has relatively fast Zn uptake rates from the dissolved phase, enabling t...
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Published in: | Environmental science & technology 2017-03, Vol.51 (5), p.2803-2810 |
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creator | Croteau, Marie-Noële Cain, Daniel J Fuller, Christopher C |
description | We extend the use of a novel tracing technique to quantify the bioavailability of zinc (Zn) associated with natural particles using snails enriched with a less common Zn stable isotope. Lymnaea stagnalis is a model species that has relatively fast Zn uptake rates from the dissolved phase, enabling their rapid enrichment in 67Zn during the initial phase of labeling. Isotopically enriched snails were subsequently exposed to algae mixed with increasing amounts of metal-rich particles collected from two acid mine drainage impacted rivers. Zinc bioavailability from the natural particles was inferred from calculations of 66Zn assimilation into the snail’s soft tissues. Zinc assimilation efficiency (AE) varied from 28% for the Animas River particles to 45% for the Snake River particles, indicating that particle-bound, or sorbed Zn, was bioavailable from acid mine drainage wastes. The relative binding strength of Zn sorption to the natural particles was inversely related to Zn bioavailability; a finding that would not have been possible without using the reverse labeling approach. Differences in the chemical composition of the particles suggest that their geochemical properties may influence the extent of Zn bioavailability. |
doi_str_mv | 10.1021/acs.est.6b06253 |
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Differences in the chemical composition of the particles suggest that their geochemical properties may influence the extent of Zn bioavailability.</description><identifier>ISSN: 0013-936X</identifier><identifier>EISSN: 1520-5851</identifier><identifier>DOI: 10.1021/acs.est.6b06253</identifier><identifier>PMID: 28187251</identifier><identifier>CODEN: ESTHAG</identifier><language>eng</language><publisher>United States: American Chemical Society</publisher><subject>Acid mine drainage ; Algae ; Animals ; Bioavailability ; Biological Availability ; Diet ; Labeling ; Lymnaea stagnalis ; Metals ; Mining ; Mollusks ; Rivers - chemistry ; Water Pollutants, Chemical ; Zinc</subject><ispartof>Environmental science & technology, 2017-03, Vol.51 (5), p.2803-2810</ispartof><rights>Copyright © 2017 U.S. Government</rights><rights>Copyright American Chemical Society Mar 7, 2017</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a394t-c8513e6db61d3613cfa4f2689c61c1250b04e978b6a03e2ac0e76d0cf4a1c7583</citedby><cites>FETCH-LOGICAL-a394t-c8513e6db61d3613cfa4f2689c61c1250b04e978b6a03e2ac0e76d0cf4a1c7583</cites><orcidid>0000-0003-0346-3580</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>315,786,790,27957,27958</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/28187251$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Croteau, Marie-Noële</creatorcontrib><creatorcontrib>Cain, Daniel J</creatorcontrib><creatorcontrib>Fuller, Christopher C</creatorcontrib><title>Assessing the Dietary Bioavailability of Metals Associated with Natural Particles: Extending the Use of the Reverse Labeling Approach to Zinc</title><title>Environmental science & technology</title><addtitle>Environ. 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The relative binding strength of Zn sorption to the natural particles was inversely related to Zn bioavailability; a finding that would not have been possible without using the reverse labeling approach. 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Sci. Technol</addtitle><date>2017-03-07</date><risdate>2017</risdate><volume>51</volume><issue>5</issue><spage>2803</spage><epage>2810</epage><pages>2803-2810</pages><issn>0013-936X</issn><eissn>1520-5851</eissn><coden>ESTHAG</coden><notes>ObjectType-Article-1</notes><notes>SourceType-Scholarly Journals-1</notes><notes>ObjectType-Feature-2</notes><notes>content type line 23</notes><abstract>We extend the use of a novel tracing technique to quantify the bioavailability of zinc (Zn) associated with natural particles using snails enriched with a less common Zn stable isotope. Lymnaea stagnalis is a model species that has relatively fast Zn uptake rates from the dissolved phase, enabling their rapid enrichment in 67Zn during the initial phase of labeling. Isotopically enriched snails were subsequently exposed to algae mixed with increasing amounts of metal-rich particles collected from two acid mine drainage impacted rivers. Zinc bioavailability from the natural particles was inferred from calculations of 66Zn assimilation into the snail’s soft tissues. Zinc assimilation efficiency (AE) varied from 28% for the Animas River particles to 45% for the Snake River particles, indicating that particle-bound, or sorbed Zn, was bioavailable from acid mine drainage wastes. The relative binding strength of Zn sorption to the natural particles was inversely related to Zn bioavailability; a finding that would not have been possible without using the reverse labeling approach. Differences in the chemical composition of the particles suggest that their geochemical properties may influence the extent of Zn bioavailability.</abstract><cop>United States</cop><pub>American Chemical Society</pub><pmid>28187251</pmid><doi>10.1021/acs.est.6b06253</doi><tpages>8</tpages><orcidid>https://orcid.org/0000-0003-0346-3580</orcidid></addata></record> |
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subjects | Acid mine drainage Algae Animals Bioavailability Biological Availability Diet Labeling Lymnaea stagnalis Metals Mining Mollusks Rivers - chemistry Water Pollutants, Chemical Zinc |
title | Assessing the Dietary Bioavailability of Metals Associated with Natural Particles: Extending the Use of the Reverse Labeling Approach to Zinc |
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