PUBLICATION

Anxiety modulators elicit different behavioral outcomes in adult zebrafish: Emphasis on homebase-related parameters and spatio-temporal exploration

Authors
Borba, J.V., Resmim, C.M., Gonçalves, F.L., Silva, R.M., Pretzel, C.W., Moraes, H.S., Sauter, M.D., Rosemberg, D.B.
ID
ZDB-PUB-241125-3
Date
2024
Source
Pharmacology, biochemistry, and behavior   246: 173914 (Journal)
Registered Authors
Keywords
Anxiety, Exploration, Homebase, Open field test, Zebrafish
MeSH Terms
  • Zebrafish*
  • Anxiety*/drug therapy
  • Anxiety*/psychology
  • Behavior, Animal*/drug effects
  • Ethanol/administration & dosage
  • Ethanol/pharmacology
  • Locomotion/drug effects
  • Exploratory Behavior/drug effects
  • Female
  • Fluoxetine*/pharmacology
  • Disease Models, Animal
  • Male
  • Clonazepam/pharmacology
  • Anti-Anxiety Agents*/pharmacology
  • Open Field Test/drug effects
  • Animals
  • Caffeine/pharmacology
  • Morphine/pharmacology
PubMed
39581386 Full text @ Pharmacol. Biochem. Behav.
Abstract
Anxiety is an emotion that represents a crucial anticipatory reaction of aversive stimuli, with clinical relevance in cases of disproportional and severe occurrences. Although distinct animal models have contributed to elucidate anxiety-related mechanisms, the influence of anxiogenic and anxiolytic modulations on both locomotion and exploration-related parameters in the open field test (OFT) is not fully elucidated. Here, we aimed to assess the influence of anxiogenic and anxiolytic manipulations on the exploratory dynamics of adult zebrafish (Danio rerio) focusing on homebase-related behaviors. As anxiogenic manipulations, we used the morphine (1.5 mg/L) withdrawal protocol (MOR); 3.5 mL/L conspecific alarm substance (CAS) for 5 min; and 100 mg/L caffeine (CAF) for 15 min. To evoke anxiolytic-like responses, animals were acutely exposed to 0.5 % (v/v) ethanol (ETOH) for 1 h; 100 μg/L fluoxetine (FLU) for 15 min; and 0.006 mg/L clonazepam (CZP) for 10 min. Then, fish were individually exposed to the 30-min OFT trial, with posterior analysis of behavioral activity. While MOR induced hyperlocomotion and increased periphery occupancy, CAS and CAF groups showed higher immobility and increased latency to homebase formation, respectively. Conversely, ETOH and FLU reduced homebase occupancy, supporting anxiolytic-like behaviors, while CZP did not change zebrafish behavior in the OFT. Cluster analysis was used to reconfirm the remarkable similarities and discrepancies between treatments, thus contributing to characterize the distinct responses measured. Overall, our novel data show the relevance of homebase-related analysis as a sensitive tool to reflect affective-like states in zebrafish, providing innovative approaches to unravel the spatio-temporal dynamics of anxiety-like behaviors in vertebrates.
Genes / Markers
Figures
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping