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免疫组织化学方法研究发现,在大鼠颈髓,延脑和下丘脑有胃泌素免疫反应性神经细胞体和神经纤维存在;在下丘脑的外侧区观察到胃泌素免疫反应性大细胞,在狗和猫的胃窦粘膜中胃泌素G细胞主要集中在粘膜中带区域,呈连续带状排列。
Immunohistochemistry showed that gastrin-immunoreactive nerve cell bodies and nerve fibers existed in the cervical spinal cord, medulla oblongata and hypothalamus. Gastrin-immunoreactive macrophages were observed in the lateral region of the hypothalamus. Gastrocolic G cells in the gastric mucosa of dogs and cats were mainly concentrated in the mucosal zone and arranged in a continuous ribbon.