Nicotine's attenuation of body weight involves the perifornical hypothalamus.
Nicotine's attenuation of body weight involves the perifornical hypothalamus.
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尼古丁对体重的减弱涉及穹窿周下丘脑。
DOI:
10.1016/j.lfs.2007.06.010
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发表时间:
2007
期刊:
影响因子:
6.1
通讯作者:
Bellinger,LarryL
中科院分区:
文献类型:
--
作者:
Kramer,PhillipR;Guan,Guoqiang;Wellman,PaulJ;Bellinger,LarryL
Previously we showed that intermittent administration of nicotine (NIC) in the dark phase decreased food intake and body weight and this could be blocked when the NIC receptor antagonist mecamylamine was infused into the fourth ventricle. Catecholaminergic neurons adjacent to the fourth ventricle contain NIC receptors and directly innervate the perifornical hypothalamus (PFH) which has been shown to be involved in regulation of feeding. This study explored whether NIC regulates feeding behavior by modulating catecholaminergic input to the PFH. Epinephrine and norepinephrine neuronal input was ablated within the PFH by infusion of 6-hydroxydopamine hydrobromide (6-OHDA), while bupropion was infused to protect dopaminergic neurons. After recovery of body weights to pre-surgery levels, food intake, meal size, meal number and body weight were measured after intermittent NIC injections. The results showed the PFH lesioned animals did not exhibit the typical prolonged drop in food intake, meal size and body weight normally associated with NIC administration. High performance liquid chromatography analyses demonstrated that compared to control rats, 6-OHDA administration significantly reduced PFH norepinephrine and epinephrine levels, but not dopamine levels. These results are consistent with NIC reducing food intake in part by acting through catecholaminergic neurons within or extending through the PFH.
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DOI:
10.3928/0048-5713-19831101-03
发表时间:
1983
期刊:
Research publications - Association for Research in Nervous and Mental Disease
影响因子:
--
作者:
R. E. Keesey;S. Corbett
通讯作者:
S. Corbett
DOI:
--
发表时间:
1993
期刊:
影响因子:
--
作者:
P. Wellman;B. T. Davies;A. Morien;L. McMahon
通讯作者:
L. McMahon
影响因子:
7.1
作者:
P. Wellman
通讯作者:
P. Wellman
影响因子:
2.5
作者:
D. Jacobowitz;M. Palkovits
通讯作者:
M. Palkovits
DOI:
10.1210/endo.137.2.8593811
发表时间:
1996
期刊:
Endocrinology.
影响因子:
--
作者:
Valentine,JD;Matta,SG;Sharp,BM
通讯作者:
Sharp,BM