Understanding sex and populational differences in spatio-temporal exploration patterns and homebase dynamics of zebrafish following repeated ethanol exposure

IF 5.3 2区 医学 Q1 CLINICAL NEUROLOGY Progress in Neuro-Psychopharmacology & Biological Psychiatry Pub Date : 2024-10-11 DOI:10.1016/j.pnpbp.2024.111171
Cássio M. Resmim , João V. Borba , Falco L. Gonçalves , Laura W. Santos , Julia Canzian , Barbara D. Fontana , Maribel A. Rubin , Denis B. Rosemberg
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Abstract

Ethanol (EtOH) is one of the most widely consumed substance, affecting neurobehavioral functions depending on multiple environmental and biological factors. Although EtOH modulates zebrafish (Danio rerio) anxiety-like behaviors in novelty-based paradigms, the potential role of biological sex and populational variability in the exploratory dynamics in the open field test (OFT) is unknown. Here, we explored whether a repeated EtOH exposure protocol modulates the spatio-temporal exploration and homebase-related parameters in a population- and sex-dependent manner. Male and female fish from the short-fin (SF) and leopard (LEO) phenotypes were exposed to EtOH for 7 days (1 % v/v, 20 min per day). On the 8th day, the OFT was performed to assess locomotor and exploratory behaviors. We verified significant populational differences in the baseline spatio-temporal exploration patterns, supporting a pronounced anxiety in LEO with a higher homebase index compared to SF. We also found sex-dependent differences in EtOH sensitivity, where SF was more sensitive to EtOH, especially in females, which showed marked alterations in thigmotaxis and homebase occupancy. Conversely, only LEO female subjects showed increased center occupancy following EtOH. Principal component analysis (PCA) showed the main components that explained data variability, which were sex- and population-dependent. Overall, our novel findings support the utility of zebrafish-based models to assess how EtOH influences the exploratory profile in the OFT, as well as to elucidate potential differences of sex and population in the neurobehavioral responses of alcohol exposure in a translational perspective.
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了解斑马鱼反复接触乙醇后的时空探索模式和家园动态的性别和种群差异
乙醇(EtOH)是消费最广泛的物质之一,它对神经行为功能的影响取决于多种环境和生物因素。虽然乙醇能调节斑马鱼(Danio rerio)在基于新奇事物的范式中的焦虑样行为,但生物性别和种群变异在开放场试验(OFT)的探索动态中的潜在作用尚不清楚。在此,我们探讨了重复EtOH暴露方案是否会以种群和性别依赖的方式调节探索的时空和归巢相关参数。短鳍(SF)和豹纹(LEO)表型的雌雄鱼在EtOH中暴露7天(1 % v/v,每天20分钟)。第8天,进行OFT以评估运动和探索行为。我们验证了基线时空探索模式的显著种群差异,与 SF 相比,LEO 具有更高的家园指数,这支持了 LEO 明显的焦虑。我们还发现了EtOH敏感性的性别差异,SF对EtOH更敏感,尤其是雌性SF,在移行和母巢占据方面表现出明显的变化。相反,只有LEO女性受试者在EtOH作用下中心占据率增加。主成分分析(PCA)显示了解释数据变化的主要成分,这些成分与性别和人群有关。总之,我们的新发现支持以斑马鱼为基础的模型评估EtOH如何影响OFT的探索特征,以及从转化的角度阐明酒精暴露对神经行为反应的潜在性别和人群差异。
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来源期刊
CiteScore
12.00
自引率
1.80%
发文量
153
审稿时长
56 days
期刊介绍: Progress in Neuro-Psychopharmacology & Biological Psychiatry is an international and multidisciplinary journal which aims to ensure the rapid publication of authoritative reviews and research papers dealing with experimental and clinical aspects of neuro-psychopharmacology and biological psychiatry. Issues of the journal are regularly devoted wholly in or in part to a topical subject. Progress in Neuro-Psychopharmacology & Biological Psychiatry does not publish work on the actions of biological extracts unless the pharmacological active molecular substrate and/or specific receptor binding properties of the extract compounds are elucidated.
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