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Updated: Jul 19, 2025

Determining Bile Duct Density in the Mouse Liver
Published on: April 30, 2019
在脊椎动物肝脏结构的形态演化过程中,胆囊的变化,光滑肌肉组织的分布,内化和细胞外矩阵的变化
Nobuyoshi Shiojiri1, Haruka Hirose2, Noriaki Ota3
1Department of Biology, Faculty of Science, Shizuoka University, 836 Oya, Suruga-ku, Shizuoka 422-8529, Japan; Graduate School of Science and Technology, Shizuoka University, 836 Oya, Suruga-ku, Shizuoka 422-8529, Japan.
鱼的肝脏结构是独一无二的,缺乏光滑肌肉,具有明显的内化. 胆管和胆管中的肝内置似乎在脊椎动物中保持着,而胆在鱼类中演变得不同.
科学领域:
- 比较解剖学的比较解剖学.
- 进化生物学是进化的生物学.
- 历史学 历史学 历史学
背景情况:
- 脊椎动物的肝脏结构被分为门三合体和非门三合体类型.
- 鱼,一个早期的脊椎动物血统,拥有祖先的门户三合体类型肝脏.
- 除了骨质形外,teleosts表现出非门性三元肝脏类型.
研究的目的:
- 为了研究肝脏内置,胆,光滑肌肉和细胞外基质的进化变化.
- 为了在不同的脊椎动物肝脏架构中比较这些特征.
主要方法:
- 免疫组织化学和组织化学被用来分析肝脏内置,光滑肌肉和原沉积.
- 使用了特异性抗体 (抗乙化素,抗α平滑肌动蛋白) 和西里乌斯红色染色.
- 超结构检查提供了详细的形态洞察.
主要成果:
- 鱼的肝脏显示出周门胆道,但缺乏光滑肌肉,并具有厚厚的原纤维.
- 鱼的肝脏内置局限于部,与其他脊椎动物的广泛内置不同.
- 在chondrichthyans的胆管周围观察到光滑的肌肉,在四足动物和基本的actinopterygian胆管中存在着乳毛,但在teleosts (除了骨质形动物外) 缺席.
结论:
- 鱼肝脏在内化和细胞外矩阵组成方面表现出独特的特征.
- 肝脏内置可能不是脊椎动物祖先的特征,但在脊椎动物中保留了.
- 在Actinopterygian进化过程中,胆的分布有所变化.
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