TY - JOUR
T1 - Environmental arsenic exposure and serum matrix metalloproteinase-9
AU - Burgess, Jefferey L.
AU - Kurzius-Spencer, Margaret
AU - O'Rourke, Mary Kay
AU - Littau, Sally R.
AU - Roberge, Jason
AU - Meza-Montenegro, Maria Mercedes
AU - Gutiérrez-Millán, Luis Enrique
AU - Harris, Robin B.
N1 - Funding Information:
This project was supported by NIEHS Grant ES06694 to the Southwest Environmental Health Sciences Center and NIH/NCI University of Arizona Specialized Program of Research Excellence (SPORE) in GI Cancer No.CA95060. Human subjects’ approval for this project was received from The University of Arizona Office for the Responsible Conduct of Research and Institutional Review Board.
PY - 2013/3
Y1 - 2013/3
N2 - The objective of this study was to evaluate the relationship between environmental arsenic exposure and serum matrix metalloproteinase (MMP)-9, a biomarker associated with cardiovascular disease and cancer. In a cross-sectional study of residents of Arizona, USA (n=215) and Sonora, Mexico (n=163), drinking water was assayed for total arsenic, and daily drinking water arsenic intake was estimated. Urine was speciated for arsenic, and concentrations were adjusted for specific gravity. Serum was analyzed for MMP-9 using ELISA. Mixed model linear regression was used to assess the relation among drinking water arsenic concentration, drinking water arsenic intake, urinary arsenic sum of species (the sum of arsenite, arsenate, monomethylarsonic acid and dimethylarsinic acid), and MMP-9, controlling for autocorrelation within households. Drinking water arsenic concentration and intake were positively associated with MMP-9, both in crude analysis and after adjustment for gender, country/ethnicity, age, body mass index, current smoking, and diabetes. Urinary arsenic sum of species was positively associated with MMP-9 in multivariable analysis only. Using Akaike's Information Criterion, arsenic concentration in drinking water provided a better fitting model of MMP-9 than either urinary arsenic or drinking water arsenic intake. In conclusion, arsenic exposure evaluated using all three exposure metrics was positively associated with MMP-9.
AB - The objective of this study was to evaluate the relationship between environmental arsenic exposure and serum matrix metalloproteinase (MMP)-9, a biomarker associated with cardiovascular disease and cancer. In a cross-sectional study of residents of Arizona, USA (n=215) and Sonora, Mexico (n=163), drinking water was assayed for total arsenic, and daily drinking water arsenic intake was estimated. Urine was speciated for arsenic, and concentrations were adjusted for specific gravity. Serum was analyzed for MMP-9 using ELISA. Mixed model linear regression was used to assess the relation among drinking water arsenic concentration, drinking water arsenic intake, urinary arsenic sum of species (the sum of arsenite, arsenate, monomethylarsonic acid and dimethylarsinic acid), and MMP-9, controlling for autocorrelation within households. Drinking water arsenic concentration and intake were positively associated with MMP-9, both in crude analysis and after adjustment for gender, country/ethnicity, age, body mass index, current smoking, and diabetes. Urinary arsenic sum of species was positively associated with MMP-9 in multivariable analysis only. Using Akaike's Information Criterion, arsenic concentration in drinking water provided a better fitting model of MMP-9 than either urinary arsenic or drinking water arsenic intake. In conclusion, arsenic exposure evaluated using all three exposure metrics was positively associated with MMP-9.
KW - arsenic
KW - binational study
KW - drinking water
KW - matrix metalloproteinase-9
KW - urine
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U2 - 10.1038/jes.2012.107
DO - 10.1038/jes.2012.107
M3 - Article
C2 - 23232971
AN - SCOPUS:84876770875
SN - 1559-0631
VL - 23
SP - 163
EP - 169
JO - Journal of Exposure Science and Environmental Epidemiology
JF - Journal of Exposure Science and Environmental Epidemiology
IS - 2
ER -