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Biological Trace Element Research

, Volume 74, Issue 2, pp 107–116 | Cite as

Blood cell lead, calcium, and magnesium levels associated with pregnancy-induced hypertension and preeclampsia

  • Earl B. Dawson
  • Douglas R. Evans
  • Randall Kelly
  • James W. Van Hook
Article

Abstract

This study compares the red blood cell (Rbc) levels of lead (Pb), calcium (Ca), and magnesium (Mg) in relation to blood pressure in 39 pregnant women in the third trimester of pregnancy. The study population included 20 women with normal pregnancies, 15 with mild hypertension, and 4 with severe hypertension and preeclampsia. The mean±SD for each group was calculated and the difference between the means of the normotensive and the other groups were compared by analysis of variance. Significant differences from normal to the preeclamptic pregnancies were in (1) elevated Rbc Pb (p≤0.001), (2) lower Rbc Ca (p≤0.001), and (3) lower Rbc Mg/Pb ratio (p≤0.0001). Pearson’s rank correlation between blood pressure showed a direct relation to the Rbc Pb level (p≤0.01) and an inverse relation to the Rbc Ca and Mg/Pb ratio (p≤0.004,≤0.007). Apparently, prenatal blood pressure is directly proportional to Rbc Pb content and related or modified by Rbc Ca and Mg.

Index Entries

Calcium magnesium lead pregnancy-induced hypertension preeclampsia 

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Copyright information

© Humana Press Inc 2000

Authors and Affiliations

  • Earl B. Dawson
    • 1
  • Douglas R. Evans
    • 1
  • Randall Kelly
    • 1
  • James W. Van Hook
    • 1
  1. 1.Division of Maternal-Fetal Medicine, Department of Obstetrics & GynecologyThe University of Texas Medical BranchGalveston

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