Orexin signaling in the paraventricular thalamic nucleus modulates mesolimbic dopamine and hedonic feeding in the rat.
Orexin signaling in the paraventricular thalamic nucleus modulates mesolimbic dopamine and hedonic feeding in the rat.
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DOI:
10.1016/j.neuroscience.2012.02.036
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发表时间:
2012-05-17
期刊:
影响因子:
3.3
通讯作者:
Benoit, S. C.
中科院分区:
文献类型:
--
作者:
Choi, D. L.;Davis, J. F.;Magrisso, I. J.;Fitzgerald, M. E.;Lipton, J. W.;Benoit, S. C.
Data from our lab indicate that the orexin system is involved in the regulation of both conditioned and unconditioned responding for palatable foods. Anticipation of food rewards activates orexin receptor containing neurons within the paraventricular nucleus of the thalamus (PVT). The PVT regulates mesolimbic dopamine neurochemistry through direct connections with the nucleus accumbens and modulates the processing of cognitive-emotional information, suggesting that the PVT may represent a unique brain region with the capacity to mediate orexinergic effects on brain dopamine and behavior. Here, we tested the hypothesis that PVT orexin signaling mediates mesolimbic dopamine and reward-based feeding. To do this we used a behavioral pharmacological approach in tandem with central genetic manipulation of the orexin-1 receptor in the PVT. Data from these studies indicate that orexin-A action in the PVT increases dopamine levels in the nucleus accumbens. In addition, endogenous orexin signaling in the PVT mediates locomotor activity and hedonic feeding responses. Together these data highlight the PVT as a critical site capable of mediating orexin action on brain dopamine and reward-based feeding.
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影响因子:
5.3
作者:
Narita, M;Nagumo, Y;Suzuki, T
通讯作者:
Suzuki, T
影响因子:
3.6
作者:
Li, Yonghui;Li, Sa;Kirouac, Gilbert J.
通讯作者:
Kirouac, Gilbert J.
影响因子:
3.6
作者:
Li, Yonghui;Li, Sa;Kirouac, Gilbert J.
通讯作者:
Kirouac, Gilbert J.
DOI:
10.1523/jneurosci.6096-08.2009
发表时间:
2009-09-09
期刊:
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子:
--
作者:
Borgland SL;Chang SJ;Bowers MS;Thompson JL;Vittoz N;Floresco SB;Chou J;Chen BT;Bonci A
通讯作者:
Bonci A
影响因子:
3.4
作者:
Hamlin, Adam S.;Clemens, Kelly J.;McNally, Gavan P.
通讯作者:
McNally, Gavan P.