Thyrotropin Regulation by Thyroid Hormone in Thyroid Hormone Receptor β-Deficient Mice.
Thyrotropin Regulation by Thyroid Hormone in Thyroid Hormone Receptor β-Deficient Mice.
复制标题
甲状腺激素受体β缺陷小鼠中甲状腺激素对促甲状腺素的调节。
作者:
R. Weiss;D. Forrest;J. Pohlenz;K. Cua;T. Curran;S. Refetoff
Thyroid hormone responsive genes can be both positively and negatively regulated by thyroid hormone. TSH is down-regulated by thyroid hormone and rises during thyroid hormone deprivation. Because both thyroid hormone receptor (TR) α and β genes are expressed in the pituitary gland, it is unclear what the relative roles of TRα and TRβ are in TSH regulation. Experiments using over expression of artificial genes have yielded conflicting results. The TRβ knock-out mouse that lacks both TRβ1 and TRβ2 isoforms provides a model to examine the role of these receptors in TSH regulation. TRβ deficient (TRβ−/−) and wild-type (TRβ+/+) mice of the same strain were deprived of thyroid hormone by feeding them a low iodine diet containing propylthiouracil and were then treated with different doses of L-T3 and L-T4. Thyroid hormone deprivation rapidly increased the serum TSH level in both TRβ+/+ and TRβ−/− mice, reaching a similar level in the absence of thyroid hormone. In contrast, the decline of serum TSH by treatment ...
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DOI:
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发表时间:
1994
期刊:
The Journal of biological chemistry
影响因子:
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作者:
Schwartz,HL;Lazar,MA;Oppenheimer,JH
通讯作者:
Oppenheimer,JH
DOI:
10.1210/mend.10.1.8838149
发表时间:
1996
期刊:
Molecular endocrinology (Baltimore, Md.)
影响因子:
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作者:
Hayashi,Y;Mangoura,D;Refetoff,S
通讯作者:
Refetoff,S
DOI:
--
发表时间:
1989
期刊:
The New biologist
影响因子:
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作者:
Brent,GA;Dunn,MK;Harney,JW;Gulick,T;Larsen,PR;Moore,DD
通讯作者:
Moore,DD
DOI:
10.1210/endo.136.7.7789309
发表时间:
1995
期刊:
Endocrinology.
影响因子:
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作者:
Yen,PM;Wilcox,EC;Hayashi,Y;Refetoff,S;Chin,WW
通讯作者:
Chin,WW
DOI:
10.1210/mend.9.9.7491112
发表时间:
1995
期刊:
Molecular endocrinology (Baltimore, Md.)
影响因子:
--
作者:
Ng,L;Forrest,D;Haugen,BR;Wood,WM;Curran,T
通讯作者:
Curran,T