Regulatory Effect of Lithium on Thyroxine Metabolism in Murine Neural and Anterior Pituitary Tissue
Regulatory Effect of Lithium on Thyroxine Metabolism in Murine Neural and Anterior Pituitary Tissue
复制标题
锂对小鼠神经和垂体前叶组织甲状腺素代谢的调节作用
DOI:
10.1210/endo-120-4-1430
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发表时间:
1987
期刊:
影响因子:
4.8
通讯作者:
D. L. Germain
中科院分区:
文献类型:
--
作者:
D. L. Germain
The conversion of T4 to T3 in the brain and anterior pituitary gland contributes significantly to the T3 content of these tissues and appears to be an important modulator of thyroid hormone action. In the present study, the antimanic agent lithium was demonstrated in cultured neural and pituitary tissue to have a significant inhibitory effect on the activity of low Km (type II) iodothyronine 5′-deiodinase (I5′D), the enzyme mediating T3 formation. At medium lithium concentrations of 3.3–5 mM, I5′D activity was decreased 44 ± 3% (P < 0.001) in the NB41A3 mouse neuroblastoma cell line and 48 ± 2% (P < 0.001) in the GH3 rat pituitary tumor cell line. This inhibitory effect was only observed in intact cells. Significant inhibition of this enzymatic process was also noted in the anterior pituitary gland of thyroidectomized rats injected 3–24 h earlier with either 4 or 10 mmol/kg BW LiCl. This decrease in low Km I5′D activity was accompanied by significant decreases in the serum T3 concentration and the pituita...
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DOI:
10.1172/jci111313
发表时间:
1984
期刊:
The Journal of clinical investigation
影响因子:
--
作者:
Silva,JE;Gordon,MB;Crantz,FR;Leonard,JL;Larsen,PR
通讯作者:
Larsen,PR
影响因子:
4.8
作者:
CRANTZ, FR;SILVA, JE;LARSEN, PR
通讯作者:
LARSEN, PR
DOI:
10.1172/jci112049
发表时间:
1985-08
期刊:
The Journal of clinical investigation
影响因子:
--
作者:
D L St Germain
通讯作者:
D L St Germain
影响因子:
4.8
作者:
Silva,JE;Leonard,JL
通讯作者:
Leonard,JL
影响因子:
4.8
作者:
Jack L. Leonard;Sarah A. Mellen;Reed P. Larsen
通讯作者:
Jack L. Leonard;Sarah A. Mellen;Reed P. Larsen