Krawitt E L, Kunin A S, Bacon B F
Calcif Tissue Res. 1976 Oct 12;21(2):129-33. doi: 10.1007/BF02547389.
In order to evaluate the role of mitochondrial calcium uptake in intestinal calcium absorption, the effect of adaptation to dietary calcium deficiency on the in vitro uptake of calcium by isolated duodenal mitochondria was studied. Experiments were performed utilizing 28-day-old cockerels which had received a diet adequate in vitamin D3 and phosphate and containing either 0.08% or 1.20% calcium. Mitochondrial 45Ca uptake from chicks deprived of dietary calcium was not significantly different from controls. These results suggest that increased calcium uptake by intestinal mitochondria is not crucial for adaptation to a low calcium diet.
为了评估线粒体钙摄取在肠道钙吸收中的作用，研究了适应膳食钙缺乏对离体十二指肠线粒体体外钙摄取的影响。实验使用了28日龄的公鸡，这些公鸡接受了维生素D3和磷酸盐充足且钙含量为0.08%或1.20%的饮食。缺乏膳食钙的雏鸡的线粒体45Ca摄取与对照组无显著差异。这些结果表明，肠道线粒体钙摄取增加对于适应低钙饮食并非至关重要。
