Serum calcium and serum magnesium in normal and preeclamptic pregnancy.
OBJECTIVE
The aims of this study were to measure serum levels of calcium and magnesium in preeclamptic pregnancies and to compare them with those in normal pregnancies.


METHODS
We collected venous serum samples from 40 preeclamptic pregnant women and 40 normal pregnant women. The blood samples were analyzed for calcium and magnesium, using a colorimetric analyzer. The data were analyzed using the Student's t-test, chi2-test or Fisher exact tests when appropriate.


RESULTS
The serum calcium concentration in preeclamptic pregnant women is significantly lower than that in normal pregnant women (9.0 +/- 0.4 mg/dl vs. 9.7 +/- 0.7 mg/dl, p < 0.0001). Like serum calcium, serum magnesium concentration in preeclamptic women is significantly lower than that in normal pregnant women (0.77 +/- 0.08 mmol/l vs. 0.85 +/- 0.09 mmol/l, p = 0.001).


CONCLUSIONS
This study shows that both serum calcium and serum magnesium levels in preeclamptic pregnant women are lower than in normal pregnant women. These findings support the hypothesis that hypocalcemia and hypomagnesemia are possible etiologies of preeclampsia.
Sukonpan
Kanchapan
K
Department of Obstetrics and Gynecology, Faculty of Medicine, Chulalongkorn University, Rama IV Road, Pathumwan, Bangkok, 10330, Thailand.
Phupong
Vorapong
V
D000328:Adult; D001724:Birth Weight; D001794:Blood Pressure; D015992:Body Mass Index; D002118:Calcium / Q000097:blood*; D005260:Female; D005865:Gestational Age; D006801:Humans; D008274:Magnesium / Q000097:blood*; D011225:Pre-Eclampsia / Q000097:blood*; D011247:Pregnancy
D008274:Magnesium; D002118:Calcium