Interaction between neuropeptide Y immunoreactive neurons and galanin immunoreactive neurons in the brain of the masu salmon, Oncorhynchus masou
Interaction between neuropeptide Y immunoreactive neurons and galanin immunoreactive neurons in the brain of the masu salmon, Oncorhynchus masou
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DOI：
10.1016/j.neulet.2009.06.067
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发表时间：
2009-09-18
影响因子：
2.5
通讯作者：
Oka, Yoshitaka
中科院分区：
文献类型：
--
作者：
Amano, Masafumi;Amiya, Noriko;Oka, Yoshitaka
我们研究了马苏鲑鱼 Oncorhynchus masou 大脑中神经肽 Y (NPY) 和甘丙肽 (GAL) 的免疫组织化学定位，以阐明大脑中这些神经肽激素之间的相互作用。在腹侧端脑的腹侧和外侧区域（分别为 Vv 和 VI）以及中脑被盖的背外侧观察到 NPY 免疫反应性（ir）细胞体。在整个大脑中观察到 NPY-ir 纤维，主要在腹侧端脑、下丘脑、视顶盖和中脑。在视前小细胞前核 (PPa) 和下丘脑室周腹侧区 (Hv) 中观察到 GAL-it 细胞体。在整个大脑中都观察到了 GAL-it 和 NPY-ir 纤维。此外，我们通过免疫组织化学双染色检查了 NPY 神经元和 GAL 神经元之间的相互作用。一些 GAL-it 纤维与 Vv 和 VI 中的 NPY-ir 细胞体紧密接触。此外，一些 NPY-ir 纤维与 PPa 和 Hv 中的 GAL-it 细胞体紧密接触。这些发现表明，马苏鲑鱼大脑中的 NPY 神经元和 GAL 神经元之间存在相互联系。 (C) 2009 Elsevier Ireland Ltd. 保留所有权利。
We investigated the immunohistochemical localization of neuropeptide Y (NPY) and galanin (GAL) in the brain of the masu salmon Oncorhynchus masou in order to clarify the interaction between these neuropeptide hormones in the brain. NPY-immunoreactive (ir) cell bodies were observed in the ventral and lateral regions of the ventral telencephalon (Vv and VI, respectively), and in the dorsolateral midbrain tegmentum. NPY-ir fibers were observed throughout the brain, mainly in the ventral telencephalon, hypothalamus, optic tectum, and midbrain. GAL-it cell bodies were observed in the nucleus preopticus parvicellularis anterioris (PPa) and the ventral zone of the periventricular hypothalamus (Hv). Both GAL-it and NPY-ir fibers were observed throughout the brain. Furthermore, we examined the interaction between the NPY neurons and GAL neurons by performing double-staining immunohistochemistry. Some GAL-it fibers were in close contact with the NPY-ir cell bodies in the Vv and VI. In addition, some NPY-ir fibers were in close contact with the GAL-it cell bodies in the PPa and Hv. These findings suggest that reciprocal connections exist between the NPY neurons and GAL neurons in the brain of the masu salmon. (C) 2009 Elsevier Ireland Ltd. All rights reserved.