CALCIUM RESORPTION FROM BONE IN A HUMAN STUDIED BY CA-41 TRACING

被引：37

作者：

JOHNSON, RR

BERKOVITS, D

BOARETTO, E

GELBART, Z

GHELBERG, S

MEIRAV, O

PAUL, M

PRIOR, J

SOSSI, V

VENCZEL, E

机构：

[1] HEBREW UNIV JERUSALEM,RACAH INST PHYS,IL-91904 JERUSALEM,ISRAEL

[2] TRIUMF,VANCOUVER V6T 2A3,BC,CANADA

[3] UNIV BRITISH COLUMBIA,DEPT MED,VANCOUVER V6T 1W5,BC,CANADA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1994年 / 92卷 / 1-4期

关键词：

D O I：

10.1016/0168-583X(94)96059-3

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We are investigating long- and short-term processes that involve the resorption of the bone calcium in the human body, using accelerator mass spectrometry of Ca-41 (T1/2 = 104 000 years). The evolution of an injected dose of Ca-41 has been followed over 900 days by measurements in urine and serum. The Ca-41/Ca isotopic ratio rapidly decreased after injection and after about 100 days, reached a quasi-steady state of 1.5 x 10(-11). Variations in this level would signal a change in rates of calcium resorption from the bone.

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收藏

页码：483 / 488

页数：6

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