Serum copper and zinc levels in preeclamptic Nigerian women

The exact etiology of preeclampsia remains unknown even though several studies have been done. Some studies have shown that supplementation of zinc (Zn) and copper could ameliorate the effects of preeclampsia while other studies did not establish the beneficial role of these elements in preeclampsia. The objective of this study was to compare the Zn and copper levels in the serum of Nigerian women with or without preeclampsia.

In this study, serum Zn and copper levels were determined using atomic absorption spectrometry in 54 patients and 48 healthy normotensive pregnant women. The mean, standard deviation, Student's t-test, and Pearson correlation were employed.

Serum Zn was significantly lower in patients than controls (8.27 ± 0.60 vs. 12.16 ± 1.83 μmol/l. P <0.001) (t-test). Serum copper was also significantly lower in patients than controls (8.14 ± 1.80 vs. 16.62 ± 3.17 μmol/l, P < 0.001).

There was a significant reduction in the levels of Zn and copper in patients with preeclampsia. Dietary supplementation of these trace elements may help to prevent preeclampsia.