TBG-DEPENDENCY OF AGE-RELATED VARIATIONS OF THYROXINE AND TRIIODOTHYRONINE

TBG-DEPENDENCY OF AGE-RELATED VARIATIONS OF THYROXINE AND TRIIODOTHYRONINE
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DOI:
10.1055/s-0028-1093563
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发表时间:
1977-01-01
影响因子:
2.2
通讯作者:
STUBBE, P
STUBBE, P
中科院分区:
医学4区
文献类型:
--
作者:
HESCH, RD;GATZ, J;STUBBE, P

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在新生儿至 95 岁的健康个体中测定了甲状腺素 (T4)、三碘甲状腺原氨酸 (T3) 和甲状腺素结合球蛋白 (TBG)。 T4:10.25.+-。 1.62μg/100ml,T3:1.62.+-。 0.35 ng/ml 和 TBG:1.34 .+-。 0.15 mg/100 ml,直到青春期,与 T4 的中年组相比有所升高:7.27 .+/-。 2.26μg/100ml,T3:1.15.+-。 0.24 ng/ml 和TBG:0.98.+-。 14 毫克/100 毫升。 T4和T3几乎遵循TBG浓度。在老年时,T4 之间存在分离:5.79 .+-。 1.56μg/100ml,T3:0.79.+-。 0.21 ng/ml 和TBG:1.28.+-。发现 0.15 毫克/100 毫升。除老年外,T4/TBG 和 T3/TBG 比率最大限度地减少了 T4 和 T3 的年龄依赖性变异,并将 T4 的变异系数从 26% 降低到 17.7%,T3 的变异系数从 26.5% 降低到 25%。 T4/TBG 的年龄减少了 15%,T3/TBG 的年龄减少了 13%,比单独的 T4 和 T3 更明显。指出了 T4 和 T3 的年龄相关变化,这是由于 TBG 的年龄依赖性、老年 T4 和 T3 值与其 TBG 水平预期值的偏差以及常规使用激素/TBG 比率的重要性。
Thyroxine (T4), triiodothyronine (T3) and thyroxine-binding globulin (TBG) were determined in healthy individuals ranging in age from newborn to 95 yr. T4: 10.25 .+-. 1.62 .mu.g/100 ml, T3: 1.62 .+-. 0.35 ng/ml and TBG: 1.34 .+-. 0.15 mg/100 ml, were elevated until puberty, compared to a middle age group with T4: 7.27 .+-. 2.26 .mu.g/100 ml, T3: 1.15 .+-. 0.24 ng/ml and TBG: 0.98 .+-. 14 mg/100 ml. T4 and T3 followed almost TBG concentration. In old age is dissociation between T4: 5.79 .+-. 1.56 .mu.g/100 ml, T3: 0.79 .+-. 0.21 ng/ml and TBG: 1.28 .+-. 0.15 mg/100 ml was found. Except for old age the ratio T4/TBG and T3/TBG minimized the age dependent variation of T4 and T3 and reduced the coefficient of variance from 26% to 17.7% for T4 and from 26.5 to 25% for T3. Age reduction of T4/TBG is 15% and of T3/TBG is 13%, respectively, more pronounced than for T4 and T3 alone. Age related variations of T4 and T3 due to age dependency of TBG, deviation of T4 and T3 values in old age from that expected by their TBG levels and the importance of the routine use of hormone/TBG ratio were indicated.