Ethanol produces multiple electrophysiological effects on ventral tegmental area neurons in freely moving rats.
Ethanol produces multiple electrophysiological effects on ventral tegmental area neurons in freely moving rats.
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乙醇对自由运动大鼠腹侧被盖区神经元产生多种电生理效应。
DOI:
10.1111/adb.12899
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发表时间:
2021-03
影响因子:
3.4
通讯作者:
Dani JA
中科院分区:
文献类型:
--
作者:
Doyon WM;Ostroumov A;Ontiveros T;Gonzales RA;Dani JA
Although alcohol (i.e., ethanol) is a major drug of abuse, the acute functional effects of ethanol on the reward circuitry are not well defined in vivo. In freely moving rats, we examined the effect of intravenous ethanol administration on neuronal unit activity in the posterior ventral tegmental area (VTA), a central component of the mesolimbic reward system. VTA units were classified as putative dopamine (DA) neurons, fast-firing GABA neurons, and unidentified neurons based on a combination of electrophysiological properties and DA D2 receptor pharmacological responses. A gradual infusion of ethanol significantly increased or decreased the firing rate of most DA neurons in a concentration-dependent manner. The majority of DA neurons were stimulated by ethanol, and ethanol also increased burst activity and increased the proportion of DA neurons that exhibited pacemaker-like firing patterns. In contrast, ethanol mediated a variety of effects in GABA and other unidentified neurons that were distinct from DA neurons, including a non-linear increase in firing rate, delayed inhibition, and more biphasic activity. These results provide evidence of discrete electrophysiological effects of ethanol on DA neurons compared to other VTA cell types, suggesting a complex role of the VTA in alcohol-induced responses in freely moving animals.
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影响因子:
64.8
作者:
Cohen, Jeremiah Y.;Haesler, Sebastian;Vong, Linh;Lowell, Bradford B.;Uchida, Naoshige
通讯作者:
Uchida, Naoshige
DOI:
10.1073/pnas.1014269108
发表时间:
2011-09-13
影响因子:
11.1
作者:
Glimcher, Paul W.
通讯作者:
Glimcher, Paul W.
影响因子:
3
作者:
Deehan GA Jr;Hauser SR;Wilden JA;Truitt WA;Rodd ZA
通讯作者:
Rodd ZA
影响因子:
25
作者:
Edwards, Nicholas J.;Tejeda, Hugo A.;Bonci, Antonello
通讯作者:
Bonci, Antonello
DOI:
10.1111/j.1530-0277.1998.tb03644.x
发表时间:
1998-02-01
影响因子:
3.2
作者:
Brodie, MS;Appel, SB
通讯作者:
Appel, SB