Suppr超能文献

[脊椎动物左右内脏不对称的人工反转:概念方法与实验解决方案]

[Artificial Inversion of the Left-Right Visceral Asymmetry in Vertebrates: Conceptual Approaches and Experimental Solutions].

作者信息

Truleva A S, Malashichev E B, Ermakov A S

出版信息

Ontogenez. 2015 Nov-Dec;46(6):365-84.

Abstract

Externally, vertebrates are bilaterally symmetrical; however, left-right asymmetry is observed in the structure of their internal organs and systems of organs (circulatory, digestive, and respiratory). In addition to the asymmetry of internal organs (visceral), there is also functional (i.e., asymmetrical functioning of organs on the left and right sides of the body) and behavioral asymmetry. The question of a possible association between different types of asymmetry is still open. The study of the mechanisms of such association, in addition to the fundamental interest, has important applications for biomedicine, primarily for the understanding of the brain functioning in health and disease and for the development of methods of treatment of certain mental diseases, such as schizophrenia and autism, for which the disturbance of left-right asymmetry of the brain was shown. To study the deep association between different types of asymmetry, it is necessary to obtain adequate animal models (primarily animals with inverted visceral organs, situs inversus totalis). There are two main possible approaches to obtaining such model organisms: mutagenesis followed by selection of mutant strains with mutations in the genes that affect the formation of the left-right visceral asymmetry and experimental obtaining of animals with inverted internal organs. This review focuses on the second approach. We describe the theoretical models for establishing left-right asymmetry and possible experimental approaches to obtaining animals with inverted internal organs.

摘要

从外部看,脊椎动物是左右对称的;然而,在其内部器官和器官系统(循环系统、消化系统和呼吸系统)的结构中观察到左右不对称。除了内部器官(内脏)的不对称外,还存在功能不对称(即身体左右两侧器官的不对称功能)和行为不对称。不同类型不对称之间可能存在关联的问题仍然悬而未决。对这种关联机制的研究,除了具有基本的研究意义外,对生物医学也有重要应用,主要用于理解健康和疾病状态下大脑的功能,以及开发治疗某些精神疾病(如精神分裂症和自闭症)的方法,研究表明这些疾病存在大脑左右不对称的紊乱。为了研究不同类型不对称之间的深层关联,有必要获得合适的动物模型(主要是内脏器官倒置的动物,即完全内脏反位)。获得此类模式生物主要有两种可能的方法:诱变后选择在影响左右内脏不对称形成的基因中发生突变的突变株,以及通过实验获得内脏器官倒置的动物。本综述重点关注第二种方法。我们描述了建立左右不对称的理论模型以及获得内脏器官倒置动物的可能实验方法。

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍。

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索

文档翻译

学术文献翻译模型,支持多种主流文档格式。

立即体验