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Toxicological Assessment of Ketamine in Juvenile Zebrafish (Danio rerio)

Toxics 2025 4 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 58 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Yin Tang, Yang Kang, Jintao Xu, Yan Qiu, Liang Meng, Sen Zhao

Summary

Researchers studied how ketamine exposure affects juvenile zebrafish behavior and metabolism, finding significant changes in swimming activity and metabolic profiles at various concentrations. While primarily focused on pharmaceutical contamination, the study used methods relevant to understanding how emerging contaminants in waterways affect aquatic life. The research highlights the value of zebrafish as a model for studying how pollutants in water bodies impact developing organisms.

This study investigates the toxic effects of ketamine on juvenile zebrafish, driven by increasing concerns over ketamine's prevalence and its potential neurotoxic effects that may disrupt behavior and metabolism. Employing a high-throughput behavior tracking system, the research analyzed the locomotor activity of 6-day post-fertilization (6 dpf) zebrafish exposed to various concentrations of ketamine. The integration of behavioral analysis with metabolic profiling was a notable innovation, as it establishes a comprehensive understanding of ketamine's effects on both acute behavioral inhibition and metabolic responses. The findings reveal that ketamine exposure significantly inhibits locomotor activity in juvenile zebrafish, with these effects becoming more pronounced at higher concentrations. Additionally, the detection of normethketamine, the primary metabolite of ketamine, using UPLC-LTQ/Orbitrap HRMS, confirms the zebrafish's ability to metabolize the drug. This underscores the utility of zebrafish as a model organism for studying the impact of ketamine on behavior and metabolism, providing valuable insights that may extend to other vertebrates.

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