疼痛如何引起负面情绪？终纹床核在疼痛所致的位置厌恶中的作用

Title:How Does Pain Induce Negative Emotion? Role of the Bed Nucleus of the Stria Terminalis in Pain-Induced Place Aversion

Volume: 15 Issue: 2

Author(s): M. Minami and S. Ide

Affiliation:

关键词: 终纹床核，抑制，多巴胺，情感，泛杏仁核结构，去甲肾上腺素，疼痛，腹侧被盖区

摘要: Pain consists of sensory-discriminative and negative-affective components. Neuronal mechanisms for the sensory component of pain have been investigated extensively. On the other hand, neuronal mechanisms for the affective component of pain remain to be investigated. Recent behavioral studies have revealed the brain regions and neuronal mechanisms involved in the affective component of pain. Glutamatergic transmission within the anterior cingulate cortex and basolateral amygdaloid nucleus plays a critical role in pain-induced aversion. Noradrenaline and corticotropin-releasing factor (CRF) within the ventral and dorsolateral parts of the bed nucleus of the stria terminalis (BNST), respectively, play important roles in paininduced aversion. Electrophysiological studies have revealed that both noradrenaline and CRF activate type II BNST neurons, which may inhibit the BNST output neurons. A recent histochemical study showed that most VTA-projecting BNST output neurons are GABAergic neurons, which preferentially make synaptic contact with VTA GABAergic neurons. Therefore, activation of VTA-projecting BNST output neurons should increase the neuronal excitability of VTA dopaminergic (DAergic) neurons through increased inhibitory input to VTA GABAergic neurons, which negatively regulate VTA DAergic neurons. Pain-induced release of noradrenaline and CRF within the BNST may activate type II BNST neurons, which could suppress VTA-projecting BNST output neurons, thereby attenuating the excitatory influence to the VTA DAergic neurons. Recent optogenetic studies suggest that the suppression of VTA DAergic neurons is sufficient to induce place aversion. Pain-induced place aversion may be due to the suppression of VTA DAergic neurons via the processing of nociceptive information within the BNST.

Cite this article as:

M. Minami and S. Ide , How Does Pain Induce Negative Emotion? Role of the Bed Nucleus of the Stria Terminalis in Pain-Induced Place Aversion, Current Molecular Medicine 2015; 15 (2) . https://dx.doi.org/10.2174/1566524015666150303002336