| ^125I在鹌鹑Coturnix coturnix中的吸收动态及其分布 |
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| 引用本文： | 李斯明,钟创光. ^125I在鹌鹑Coturnix coturnix中的吸收动态及其分布[J]. 中山大学学报论丛, 2001, 21(3): 19-21 |
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| 作者姓名： | 李斯明 钟创光 |
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| 作者单位： | 1. 广州市白云山风景名胜区管理局,广州,510095
2. 中山大学生命科学学院,广州,510275 |
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| 摘 要： | 利用同位素示踪法研究了125I(NaI)在鹌鹑Coturnix coturnix中的吸收动态及其分布.鹌鹑对经口喂的125I的吸收过程可以分为快清除期和平台期,0～1 d为快清除期,在这期间,鹌鹑快速的排出进入体内的125I.1～7 d为平台期,鹌鹑体内的125I维持在一个相对恒定的平台,此时体内的放射性活度占起始活度的10%～15%,表明鹌鹑能利用部分进入体内的碘.进入体内的125I主要分布于甲状腺中,5 h时125I在甲状腺中的比活度高达6180 060Bq·g-1,约占体内总量的75%～80%.
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| 关 键 词： | ^125I 鹌鹑 吸收 动态 分布 |
| 文章编号： | 1007-1792(2001)03-0019-03 |
| 修稿时间： | 2001-01-06 |
Uptake Dynamics and Distribution of 125I in Coturnix coturnix |
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| LI Si-ming,ZHONC Chuang-gzuing. Uptake Dynamics and Distribution of 125I in Coturnix coturnix[J]. Studies in Logic, 2001, 21(3): 19-21 |
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| Authors: | LI Si-ming ZHONC Chuang-gzuing |
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| Affiliation: | LI Si-ming1,ZHONC Chuang-gzuing2 |
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| Abstract: | The uptake dynamics and distribution of 125I in Coturnix coturnix were studied. Results showed that the oral uptake procedure composed of a quick elimination stage and a platform stage. During the quick elimination stage (0 - 1 d), the radioactivity decreased significantly. Then the radioactivity in the bird was maintained between 10% ~ 15% of the original during 1d to 7 d, implying that part of the 125I was bioavailable to the bird. 125I was mainly distributed in thyroid gland, which accounted for 75% -80% of the total radioactivity of the whole body at 5 h of the experiment. |
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| Keywords: | 125I uptake distribution Coturnix coturnix |
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