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首页> 外文期刊>Aquatic Biology >Distribution of glutamic acid decarboxylase immunoreactivity within the brain of oval squid Sepioteuthis lessoniana
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Distribution of glutamic acid decarboxylase immunoreactivity within the brain of oval squid Sepioteuthis lessoniana

机译：椭圆形鱿鱼乌贼菌脑内谷氨酸脱羧酶免疫反应的分布

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ABSTRACT: Coleoid cephalopods (squid, cuttlefish, and octopus) have the largest and most complex brains of all invertebrates and show behavioral abilities similar to those of vertebrates. Among the coleoids, the oval squid Sepioteuthis lessoniana forms well-structured schools that are indicative of sociality. These behaviors are reflected in aspects of the well-developed brain. In this study, we focused on the role of the cephalopod brain in complex behavior. In order to reveal the network of γ-aminobutyric acid (GABA) in coleoids, we examined the immunohistochemical localization of glutamic acid decarboxylase (GAD), which is the synthetic enzyme of GABA, in the brain of young S. lessoniana. We found that GABAergic neurons and their axons were distributed throughout the brain. GABA neurons were abundantly localized in the inferior frontal lobe, which is involved in controlling arm motions, and in the subesophageal masses, which are lower and intermediate centers of action. GABAergic fibers were abundantly localized in the tract that runs from the superior frontal lobe to the vertical lobe. These results suggested the involvement of GABA in both cognitive behaviors (such as learning and memory) and in movement.
机译：摘要：鞘状头足类（鱿鱼，乌贼和章鱼）在所有无脊椎动物中拥有最大，最复杂的大脑，并且表现出与脊椎动物相似的行为能力。在这些类鱼中，椭圆形的鱿鱼 Sepioteuthis lessoniana 形成了结构良好的学校，这些学校表明了社会性。这些行为反映在大脑发达的方面。在这项研究中，我们集中于头足类大脑在复杂行为中的作用。为了揭示类固醇中的γ-氨基丁酸（GABA）网络，我们检查了谷氨酸脱羧酶（GAD）的免疫组织化学定位，谷氨酸脱羧酶是GABA的合成酶，在年轻的iS脑中。 lessoniana 。我们发现，GABA能神经元及其轴突分布在整个大脑中。 GABA神经元大量位于下额叶中，该下额叶参与控制手臂的运动，而在食管下块中则是其下级和中级作用中心。 GABA能纤维大量分布在从上额叶到垂直叶的管道中。这些结果表明GABA参与认知行为（例如学习和记忆）和运动。

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