alexa Dose-response curves for erythrocyte protoporphyrin vs blood lead: effects of iron status.
Toxicology

Toxicology

Journal of Drug Metabolism & Toxicology

Author(s): Marcus AH, Schwartz J, Marcus AH, Schwartz J

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Abstract An increase in erythrocyte protoporphyrin (EP) is one of the most useful indicators of adverse biological response to lead exposure. A nonlinear mathematical model relating EP to blood lead concentration (PbB) was fitted to data in a sample of 1677 U.S. children (ages 2-6 years) in the Second National Health and Nutrition Examination Survey (NHANES II). Iron status was defined by percentage transferrin saturation (PTS). The dose-response curves for EP vs PbB increased systematically with decreasing PTS, largely due to decrease of a parameter proportional to red cell lead-holding capacity with decreasing PTS.
This article was published in Environ Res and referenced in Journal of Drug Metabolism & Toxicology

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