Quantification of the influence of drugs on zebrafish larvae swimming kinematics and energetics

PeerJ

article

Zhenkai Zhao¹  Gen Li²  Qing Xiao¹  Hui-Rong Jiang³  Gabriel Mbuta Tchivelekete⁴  Xinhua Shu⁴  Hao Liu⁵ 

[1] Department of Naval Architecture, Ocean, and Marine Engineering, University of Strathclyde;Department of Mathematical Science and Advanced Technology, Japan Agency for Marine-Earth Science and Technology;Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde;Department of Biological and Biomedical Sciences, Glasgow Caledonian University;Graduate School of Engineering, Chiba University

关键词: Zebrafish;    Swimming behaviour;    Acetic acid;    MBDyn;    Fluid-structure interaction;    Power;    Neuroactive;    Drug influence;   

DOI  :  10.7717/peerj.8374

学科分类：社会科学、人文和艺术（综合）

来源: Inra

【 摘 要 】

The use of zebrafish larvae has aroused wide interest in the medical field for its potential role in the development of new therapies. The larvae grow extremely quickly and the embryos are nearly transparent which allows easy examination of its internal structures using fluorescent imaging techniques. Medical treatment of zebrafish larvae can directly influence its swimming behaviours. These behaviour changes are related to functional changes of central nervous system and transformations of the zebrafish body such as muscle mechanical power and force variation, which cannot be measured directly by pure experiment observation. To quantify the influence of drugs on zebrafish larvae swimming behaviours and energetics, we have developed a novel methodology to exploit intravital changes based on observed zebrafish locomotion. Specifically, by using an in-house MATLAB code to process the recorded live zebrafish swimming video, the kinematic locomotion equation of a 3D zebrafish larvae was obtained, and a customised Computational Fluid Dynamics tool was used to solve the fluid flow around the fish model which was geometrically the same as experimentally tested zebrafish. The developed methodology was firstly verified against experiment, and further applied to quantify the fish internal body force, torque and power consumption associated with a group of normal zebrafish larvae vs. those immersed in acetic acid and two neuroactive drugs. As indicated by our results, zebrafish larvae immersed in 0.01% acetic acid display approximately 30% higher hydrodynamic power and 10% higher cost of transport than control group. In addition, 500 μM diphenylhydantoin significantly decreases the locomotion activity for approximately 50% lower hydrodynamic power, whereas 100 mg/L yohimbine has not caused any significant influences on 5 dpf zebrafish larvae locomotion. The approach has potential to evaluate the influence of drugs on the aquatic animal’s behaviour changes and thus support the development of new analgesic and neuroactive drugs.

【 授权许可】

CC BY