[Effects of different levels of calcium intake on bone of pregnant women].
OBJECTIVE
To research some effects of different levels of calcium intake in the mother's bone mineral density.


METHODS
On the basis of insignificantly different among energy and other nutrition intake excepting calcium, 35 volunteers in pregnant 18 weeks healthy women were randomly divided into I. II and III group [calcium intake were (550 +/- 150) mg/d, (900 +/- 150) mg/d and (1,500 +/- 150) mg/d]. The tracked study began from pregnant 20 weeks to postpartum 45 days. All over and different body of BMD (Bone Mineral Density) were assessed by dual-energy X-rays absorptiometry.


RESULTS
I group of many location BMD were below that of other groups (P < 0. 01). As compared with the same age women's lumbar spine BMD, I group was only maintained within the rang (85.14 +/- 6.61)%, and osteoporosis in some places of bone were found in some individual. II group was (90.74 +/- 6.53)%. III group was (100.44 +/- 5.19)%. Allover different body's BMD were significantly correlated with the average BMD (r > 0.8, P < 0.1), the most significant correlation was third lumbar spine. Calcium intake of women was positively correlated with different body's BMD (r > 0.5, P < 0.01).


CONCLUSIONS
III group, calcium intake was (30.68 +/- 3.56) mmol/d, pass through period of pregnancy, parturition and short-term breast-feed mother body remain the same BMD, and prevent osteoporosis. Reporting pregnant women calcium nutrition pass through BMD, lumbar spine is good representation.
Qiu
L
L
The Firstmilitary Medical University Affiliated Nanfang Hospital, Guangzhou 510515.
Su
Y
Y
Peng
Y
Y
Zhang
R
R
Huang
Z
Z
D015502:Absorptiometry, Photon; D000328:Adult; D015519:Bone Density; D002118:Calcium / Q000008:administration & dosage*; D002136:Calcium, Dietary / Q000008:administration & dosage; D005260:Female; D006801:Humans; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging; D010024:Osteoporosis / Q000517:prevention & control*; D049590:Postpartum Period; D011247:Pregnancy
D002136:Calcium, Dietary; D002118:Calcium