Differences in response to serotonergic activation between first and higher order thalamic nuclei.
Differences in response to serotonergic activation between first and higher order thalamic nuclei.
复制标题
第一级和高级丘脑核对血清素激活的反应存在差异。
DOI:
10.1093/cercor/bhn208
复制
发表时间:
2009
期刊:
影响因子:
--
通讯作者:
Sherman,SMurray
中科院分区:
文献类型:
--
作者:
Varela,C;Sherman,SMurray
Two types of thalamic nuclei have been recognized:first order, which relay information from subcortical sources, andhigher order, which may relay information from one cortical area to another. We have recently shown that muscarinic agonists depolarize all first order and most higher order relay cells but hyperpolarize a significant proportion of higher order relay cells. We now extend this result to serotonergic agonists, using rat thalamic brain slices and whole-cell, current- and voltage-clamp recordings from relay cells in various first order (the lateral geniculate nucleus, the ventral posterior nucleus, and the ventral portion of the medial geniculate body) and higher order nuclei (the lateral posterior, the posterior medial nucleus, and the dorsal portion of the medial geniculate body). Similar to the effects of muscarinic agonists, we found that first and most higher order relay cells were depolarized by serotonergic agonists, but 15% of higher order relay cells responded with hyperpolarization. Thus different subsets of higher order relay cells are hyperpolarized by these modulatory systems, which could have implications for the transfer of information between cortical areas.
登录
查看更多内容
DOI:
--
发表时间:
2001
期刊:
The Journal of pharmacology and experimental therapeutics.
影响因子:
--
作者:
Chapin,EM;Andrade,R
通讯作者:
Andrade,R
DOI:
10.1073/pnas.0502843102
发表时间:
2005
期刊:
Proceedings of the National Academy of Sciences of the United States of America.
影响因子:
--
作者:
Ramcharan,EJ;Gnadt,JW;Sherman,SM
通讯作者:
Sherman,SM
影响因子:
2.5
作者:
Smith, GD;Cox, CL;Rinzel, J
通讯作者:
Rinzel, J
DOI:
--
发表时间:
2001
期刊:
The Journal of pharmacology and experimental therapeutics.
影响因子:
--
作者:
Chapin,EM;Andrade,R
通讯作者:
Andrade,R
影响因子:
7.3
作者:
W. Douglas
通讯作者:
W. Douglas