Methodological study on endogenous calcium absorptivity using rats and 41Ca tracing

Hui Zhang; Liang Dou; Xiao-Ming Wang; Sheng-Quan Mi; Qing-Zhang Zhao; Shan Jiang; Ming He

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Methodological study on endogenous calcium absorptivity using rats and 41Ca tracing

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Elemental calcium plays an important role in human physiology. In order to study the relationship between Ca-intake, Ca-chemical formulation, and Ca-absorptivity, a balance experiment using a ^(41)Ca tracer technique in SD rats was conducted to measure the endogenous fecal calcium and true absorption of calcium. Apparent absorption of calcium was measured as a control to the endogenous calcium labeling experiment. These results show that by using ^(41)Ca labeled endogenous calcium in vivo, researchers could obtain the true calcium absorption data without extrinsic labeling. Therefore, the method was not affected by the chemical structure or type of calcium supplement and might be used in evaluating the absorptivity of marketed calcium supplements.

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《核技术：英文版》 |2018年第4期|79-82|共4页
作者
Hui Zhang; Liang Dou; Xiao-Ming Wang; Sheng-Quan Mi; Qing-Zhang Zhao; Shan Jiang; Ming He;
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作者单位

China Institute of Atomic Energy;

Beijing 102413;

China;

Technical Physics Institute of Heilongjiang Academy of Sciences;

Harbin 150086;

China;

Department of Biology;

College of Applied Arts and Sciences;

Beijing Union University;

Beijing 100083;

China;

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原文格式 PDF
正文语种 chi
中图分类原子能技术;
关键词
Endogenous; calcium; absorptivity; 41Ca; tracer; Accelerator; mass; spectrometry; measurement;

Methodological study on endogenous calcium absorptivity using rats and 41Ca tracing

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