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为了了解哺乳类生殖周期中Vit D在骨骼代谢中的作用,作者从断奶开始就给雌鼠维持缺乏VitD的饮食,并与正常雄鼠交配,监视其妊娠期、哺乳期及断奶后雌鼠骨骼的变化。其结果表明:妊娠期充分供给VitD的鼠股骨很少或基本无变化,而食物中缺乏VitD的雌鼠股骨的体积、骨钙总量、每单位体积钙的含量均有增长趋势。分娩后无论是充分供给VitD的还是缺乏VitD的雌鼠均丢失了矿物质,结果以妊娠20天的量为基础数值,则丢失的量为42～46mg或骨骼矿物质总量的23～38%。缺
In order to understand the role of Vit D in bone metabolism during the mammalian reproductive cycle, the authors maintained a VitD-deficient diet for females from the weaning stage and mated with normal males to monitor their gestation, lactation and weaned female rat bones The change. The results showed that there was little or no change in the femur of full-dose VitD during pregnancy, while the volume of femur, total calcium and calcium per unit volume of female rats lacking VitD in the diet tended to increase. After delivery, whether full VitD or lack of VitD female mice lost minerals, the results of the amount of 20 days of pregnancy based on the value of the amount of the loss of 42 ~ 46mg or bone mineral 23 to 38% . lack