Pharmacological inhibition of TRα1 receptor potentiates the thyroxine effect on body weight reduction in rats:: potential therapeutic implications in controlling body weight

被引:8
作者
Pantos, C.
Mourouzis, I.
Paizis, I.
Malliopoulou, V.
Xinaris, Ch.
Moraitis, P.
Cokkinos, A. D.
Cokkinos, D. V.
机构
[1] Univ Athens, Dept Pharmacol, Athens 11527, Greece
[2] Onassis Cardiac Surg Ctr, Cardiol Dept 1, Athens 17674, Greece
关键词
body weight; obesity; rats; thyroid analogs; thyroxine;
D O I
10.1111/j.1463-1326.2006.00587.x
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
It has been previously reported that thyroid hormone receptor alpha 1 (TR alpha 1) is involved in the regulation of food intake and heart rhythm. Herein, we show that pharmacological inhibition of TR alpha 1 by dronedarone, an amiodarone like compound (shown to antagonize thyroid hormone binding to TR alpha 1), prevented the thyroid hormone induced increase in food intake and heart rate acceleration in rats. This resulted in a marked reduction in body weight. It is likely that thyroid analogs may prove potential therapeutic agents for controlling body weight.
引用
收藏
页码:136 / 138
页数:3
相关论文
共 8 条
[1]  
Grover GJ, 2005, CARDIOVASC DRUG REV, V23, P133
[2]   Fat balance and serum leptin concentrations in normal, hypothyroid, and hyperthyroid rats [J].
Iossa, S ;
Lionetti, L ;
Mollica, MP ;
Crescenzo, R ;
Barletta, A ;
Liverini, G .
INTERNATIONAL JOURNAL OF OBESITY, 2001, 25 (03) :417-425
[3]   Lower serum free thyroxine levels are associated with metabolic syndrome in a Chinese population [J].
Lin, SY ;
Wang, YY ;
Liu, PH ;
Lai, WA ;
Sheu, WHH .
METABOLISM-CLINICAL AND EXPERIMENTAL, 2005, 54 (11) :1524-1528
[4]   Thyroid hormone and phenotypes of cardioprotection [J].
Pantos, C ;
Malliopoulou, V ;
Varonos, DD ;
Cokkinos, DV .
BASIC RESEARCH IN CARDIOLOGY, 2004, 99 (02) :101-120
[5]   Dronedarone administration prevents body weight gain and increases tolerance of the heart to ischemic stress:: A possible involvement of thyroid hormone receptor α1 [J].
Pantos, C ;
Mourouzis, I ;
Malliopoulou, V ;
Paizis, I ;
Tzeis, S ;
Moraitis, P ;
Sfakianoudis, K ;
Varonos, DD ;
Cokkinos, DV .
THYROID, 2005, 15 (01) :16-23
[6]   Thyroid hormone receptors α1 and β1 are downregulated in the post-infarcted rat heart:: consequences on the response to ischaemia-reperfusion [J].
Pantos, C ;
Mourouzis, I ;
Saranteas, T ;
Paizis, I ;
Xinaris, C ;
Malliopoulou, V ;
Cokkinos, DV .
BASIC RESEARCH IN CARDIOLOGY, 2005, 100 (05) :422-432
[7]   Whole body and forearm substrate metabolism in hyperthyroidism: evidence of increased basal muscle protein breakdown [J].
Riis, ALD ;
Jorgensen, JOL ;
Gjedde, S ;
Norrelund, H ;
Jurik, AG ;
Nair, KS ;
Ivarsen, P ;
Weeke, J ;
Moller, N .
AMERICAN JOURNAL OF PHYSIOLOGY-ENDOCRINOLOGY AND METABOLISM, 2005, 288 (06) :E1067-E1073
[8]   Dronerarone acts as a selective inhibitor of 3,5,3′-triiodothyronine binding to thyroid hormone receptor-α1:: In vitro and in vivo evidence [J].
van Beeren, HC ;
Jong, WMC ;
Kaptein, E ;
Visser, TJ ;
Bakker, O ;
Wiersinga, WM .
ENDOCRINOLOGY, 2003, 144 (02) :552-558