[低动力状态下大鼠小肠对钙的吸收]
[Calcium absorption in the small intestine in rats during hypokinesia].
作者信息
Sergeev I N, Spirichev V B, Belakovskiĭ M S, Ushakov A S
出版信息
Vopr Pitan. 1986 Jul-Aug(4):50-4.
The method of averted and non-averted segments was used to assess calcium absorption in the small intestine of adult and young rats with hypokinesia. A certain decrease in the active (by 13.8%) and more manifest diminution of the total (by 26.3%) calcium transport was established in adult rats after 4 weeks of hypokinesia. In young rats a significant lowering of the active calcium transport was already noted after 1 week of hypokinesia, however, age-dependent shifts in the process were more significant than those induced by hypokinesia. Changes in the calcium-regulating hormones are considered as a possible cause of decreased calcium absorption in the intestine in relation to hypokinesia and age.
采用避开和未避开节段的方法，评估运动功能减退的成年和幼年大鼠小肠中的钙吸收情况。成年大鼠运动功能减退4周后，其活性钙转运出现一定程度下降（下降13.8%），总钙转运的减少更为明显（下降26.3%）。幼年大鼠运动功能减退1周后，就已观察到活性钙转运显著降低，然而，该过程中与年龄相关的变化比运动功能减退引起的变化更为显著。钙调节激素的变化被认为是与运动功能减退和年龄相关的肠道钙吸收减少的一个可能原因。
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