Dietary Selenium Deficiency Partially Mimics the Metabolic Effects of Arsenic

Chronic arsenic exposure via drinking water is associated with diabetes in human pop-ulations throughout the world. Arsenic is believed to exert its diabetogenic effects via multiple mechanisms, including alterations to insulin secretion and insulin sensitivity. In the past, acute arsenicosis has be...

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Main Authors: Christopher M. Carmean, Mizuho Mimoto, Michael Landeche, Daniel Ruiz, Bijoy Chellan, Lidan Zhao, Margaret C. Schulz, Alexandra M. Dumitrescu, Robert M. Sargis
Format: Article
Language:English
Published: MDPI AG 2021-08-01
Series:Nutrients
Subjects:
Online Access:https://www.mdpi.com/2072-6643/13/8/2894
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author Christopher M. Carmean
Mizuho Mimoto
Michael Landeche
Daniel Ruiz
Bijoy Chellan
Lidan Zhao
Margaret C. Schulz
Alexandra M. Dumitrescu
Robert M. Sargis
author_facet Christopher M. Carmean
Mizuho Mimoto
Michael Landeche
Daniel Ruiz
Bijoy Chellan
Lidan Zhao
Margaret C. Schulz
Alexandra M. Dumitrescu
Robert M. Sargis
author_sort Christopher M. Carmean
collection DOAJ
description Chronic arsenic exposure via drinking water is associated with diabetes in human pop-ulations throughout the world. Arsenic is believed to exert its diabetogenic effects via multiple mechanisms, including alterations to insulin secretion and insulin sensitivity. In the past, acute arsenicosis has been thought to be partially treatable with selenium supplementation, though a potential interaction between selenium and arsenic had not been evaluated under longer-term exposure models. The purpose of the present study was to explore whether selenium status may augment arsenic’s effects during chronic arsenic exposure. To test this possibility, mice were exposed to arsenic in their drinking water and provided ad libitum access to either a diet replete with selenium (Control) or deficient in selenium (SelD). Arsenic significantly improved glucose tolerance and decreased insulin secretion and β-cell function in vivo. Dietary selenium deficiency resulted in similar effects on glucose tolerance and insulin secretion, with significant interactions between arsenic and dietary conditions in select insulin-related parameters. The findings of this study highlight the complexity of arsenic’s metabolic effects and suggest that selenium deficiency may interact with arsenic exposure on β-cell-related physiological parameters.
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spelling doaj.art-994eae19d3dd4743858831bdce0960d02023-11-22T09:07:43ZengMDPI AGNutrients2072-66432021-08-01138289410.3390/nu13082894Dietary Selenium Deficiency Partially Mimics the Metabolic Effects of ArsenicChristopher M. Carmean0Mizuho Mimoto1Michael Landeche2Daniel Ruiz3Bijoy Chellan4Lidan Zhao5Margaret C. Schulz6Alexandra M. Dumitrescu7Robert M. Sargis8Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Illinois at Chicago, Chicago, IL 60612, USASection of Endocrinology, Diabetes and Metabolism, University of Chicago, Chicago, IL 60637, USADivision of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Illinois at Chicago, Chicago, IL 60612, USACommittee on Molecular Metabolism and Nutrition, University of Chicago, Chicago, IL 60637, USADivision of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Illinois at Chicago, Chicago, IL 60612, USADivision of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Illinois at Chicago, Chicago, IL 60612, USADivision of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Illinois at Chicago, Chicago, IL 60612, USASection of Endocrinology, Diabetes and Metabolism, University of Chicago, Chicago, IL 60637, USADivision of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Illinois at Chicago, Chicago, IL 60612, USAChronic arsenic exposure via drinking water is associated with diabetes in human pop-ulations throughout the world. Arsenic is believed to exert its diabetogenic effects via multiple mechanisms, including alterations to insulin secretion and insulin sensitivity. In the past, acute arsenicosis has been thought to be partially treatable with selenium supplementation, though a potential interaction between selenium and arsenic had not been evaluated under longer-term exposure models. The purpose of the present study was to explore whether selenium status may augment arsenic’s effects during chronic arsenic exposure. To test this possibility, mice were exposed to arsenic in their drinking water and provided ad libitum access to either a diet replete with selenium (Control) or deficient in selenium (SelD). Arsenic significantly improved glucose tolerance and decreased insulin secretion and β-cell function in vivo. Dietary selenium deficiency resulted in similar effects on glucose tolerance and insulin secretion, with significant interactions between arsenic and dietary conditions in select insulin-related parameters. The findings of this study highlight the complexity of arsenic’s metabolic effects and suggest that selenium deficiency may interact with arsenic exposure on β-cell-related physiological parameters.https://www.mdpi.com/2072-6643/13/8/2894seleniumarsenicnutritiondietary interventioninsulin secretionendocrine-disrupting chemicals
spellingShingle Christopher M. Carmean
Mizuho Mimoto
Michael Landeche
Daniel Ruiz
Bijoy Chellan
Lidan Zhao
Margaret C. Schulz
Alexandra M. Dumitrescu
Robert M. Sargis
Dietary Selenium Deficiency Partially Mimics the Metabolic Effects of Arsenic
Nutrients
selenium
arsenic
nutrition
dietary intervention
insulin secretion
endocrine-disrupting chemicals
title Dietary Selenium Deficiency Partially Mimics the Metabolic Effects of Arsenic
title_full Dietary Selenium Deficiency Partially Mimics the Metabolic Effects of Arsenic
title_fullStr Dietary Selenium Deficiency Partially Mimics the Metabolic Effects of Arsenic
title_full_unstemmed Dietary Selenium Deficiency Partially Mimics the Metabolic Effects of Arsenic
title_short Dietary Selenium Deficiency Partially Mimics the Metabolic Effects of Arsenic
title_sort dietary selenium deficiency partially mimics the metabolic effects of arsenic
topic selenium
arsenic
nutrition
dietary intervention
insulin secretion
endocrine-disrupting chemicals
url https://www.mdpi.com/2072-6643/13/8/2894
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