孕产期钙摄入量对调钙激素及骨密度的影响

Effect of calcium intakes on calcium-regulating hormones and bone mineral density during pregnancy and postpartum periods

36名健康妇女在孕18周时按钙摄入量分组,并在孕产期测定他们的血钙、血磷、甲状旁腺激素(PTH)、降钙素,在产后测定他们的骨密度。血PTH和降钙素水平随孕期进展而升高,孕末期最高。在孕期钙摄入量较高的妇女产后的骨密度高于孕期钙摄入一般的妇女。

Thirty-six healthy women were divided into 3 groups according to their calcium intake at week 18 of gestation. The levels of their blood calcium, phosphate, parathyroid hormone (PTH) and calcitonin were assayed during pregnancy and postpartum, and bone mineral density ( BMD) was measured postpartum. The levels of PHI and calcitonin were increasing with advancing pregnancy and reached the highest at the end of pregnancy. The women with higher calcium intake during pregnancy period had higher BMD than that of the women with ordinary diet during pregnancy period.