Hepatic conversion of thyroxine to triiodothyronine in obese and lean Zucker rats.
Hepatic conversion of thyroxine to triiodothyronine in obese and lean Zucker rats.
复制标题
肥胖和瘦 Zucker 大鼠中甲状腺素的肝脏转化为三碘甲状腺原氨酸。
DOI:
10.1016/0024-3205(84)90579-4
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发表时间:
1984
期刊:
影响因子:
6.1
通讯作者:
Braverman,LE
中科院分区:
文献类型:
--
作者:
Young,RA;Fang,SL;Prosky,J;Braverman,LE
The in vitro conversion of thyroxine (T4) to triidothyronine (T3) was studied in liver homogenates from fed and fasted lean and obese Zucker rats. T3generation was decreased in fed young (2 month) obese rats as compared to values in fed lean controls. This was not corrected by the addition of dithiothreitol (DTT), suggesting a deficiency in 5'-deiodinase activity in y oung obese rats. Both lean and obese 2 month old rats responded to a 2 day fast by decreasing hepatic T3generation as is always observed in other strains of rats. The hepatic conversion rate was not decreased in older (5 month) fed obese rats when compared to age-matched lean controls. Hepatic conversion of T4to T3was markedly decreased in 5 month old lean Zucker rats fasted for 4 days. In contrast, a 4 day fast had no effect on the hepatic conversion rate in the 5 month old obese rats. The hepatic conversion rate was assessed in 5 month old obese rats fasted for up to 28 days and hepatic conversion still did not decrease. This paradoxical response of the 5 month old obese rat may provide a new model to further evaluate the control of hepatic T3generation from T4.
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DOI:
10.1172/jci109330
发表时间:
1979
期刊:
The Journal of clinical investigation
影响因子:
--
作者:
A. Harris;S. Fang;L. Hinerfeld;L. Braverman;A. Vagenakis
通讯作者:
A. Vagenakis
影响因子:
4.8
作者:
D. York;J. Hershman;R. Utiger;G. Bray
通讯作者:
G. Bray
影响因子:
15.9
作者:
H. L. Schwartz;M. Surks;J. Oppenheimer
通讯作者:
J. Oppenheimer
影响因子:
4.8
作者:
ZUCKER, LM;ANTONIADES, HN
通讯作者:
ANTONIADES, HN
DOI:
--
发表时间:
1978
期刊:
Metabolism: Clinical and Experimental
影响因子:
--
作者:
A. Harris;Shih;Apostolos G. Vagenakis;Lewis E. Bravernan
通讯作者:
Lewis E. Bravernan