A5006021986- Zebrafish Biomedical Research Applications
- Aquaculture disease management and microbiota
- Aquaculture Nutrition and Growth
- Physiological and biochemical adaptations
- Fish Ecology and Management Studies
- Animal Behavior and Reproduction
- Environmental Toxicology and Ecotoxicology
- Neuroendocrine regulation and behavior
- Stress Responses and Cortisol
- Reproductive biology and impacts on aquatic species
- Bee Products Chemical Analysis
- Pesticide and Herbicide Environmental Studies
- Fish biology, ecology, and behavior
- Neuroinflammation and Neurodegeneration Mechanisms
- Meat and Animal Product Quality
- Pharmaceutical and Antibiotic Environmental Impacts
- Essential Oils and Antimicrobial Activity
- Birth, Development, and Health
- Olfactory and Sensory Function Studies
- Healthcare and Venom Research
- Pharmacological Effects and Assays
- Insect and Pesticide Research
- Aquatic Ecosystems and Phytoplankton Dynamics
- Invertebrate Immune Response Mechanisms
- Advanced Chemical Sensor Technologies
Universidade de Passo Fundo
2008-2021
Fundo Brasil
2020
Universidade Federal de Santa Maria
2011-2018
The presence of pharmaceutical products in the aquatic environment has been reported several studies. However, impact these drugs on living organisms is still uncharacterized. Here, we investigated effects acute exposure to either diazepam or fluoxetine stress response Danio rerio. We showed that and inhibited axis zebrafish. Intermediate concentrations suppressed as measured by cortisol levels, whereas increase at similar those found environment. These data suggest psychoactive ecosystems...
Chronic stress may cause physical, behavioral and neuropsychiatric changes, affecting the health condition of an individual. Aggression is a universal behavior with great relevance on human animal social systems. Despite studies showing influence chronic aggression, effects unpredictable (UCS) aggressive in male female zebrafish remain unknown. Thus, aim this study was to evaluate UCS cortisol levels adult both sexes. Our results showed that increased aggression males, but not females, which...
Responses to anaesthesia with essential oil (EO) of Aloysia triphylla (135 and 180 mg L−1) tricaine methanesulfonate (MS222) (150 300 were assessed in silver catfish. Exposure the anaesthetics elicited a stress response species. In case MS222, it was displayed as release cortisol into bloodstream, elevation hematocrit plasma ion loss. The EO presented cortisol-blocking properties, but increased haematocrit disturbances hydromineral balance observed. Liver antioxidant/oxidant status...
Several studies have shown that manipulations to the housing environment modulate susceptibility stress in laboratory animals, mainly rodents. Environmental enrichment (EE) is one such manipulation promotes neuroprotection and neurogenesis, besides affecting behaviors as drug self-administration. Zebrafish are a popular useful animal model for behavioral neuroscience studies; however, evaluating impact of conditions this species scarce. In study, we verified effects EE on (novel tank test)...
Here we provide evidence that both pharmacological and environmental manipulations similarly blunt the cortisol release in response to an acute stressor adult zebrafish. Different groups of fish were maintained isolated or group-housed barren enriched tanks, then exposed not diazepam fluoxetine. Acute stress increased levels zebrafish environment. Single-housed displayed a blunted stress. Environmental enrichment also this was observed fish. The same blunting effect We highlighted as...
The zebrafish (Danio rerio) is used as an emergent model organism to investigate the behavioral and physiological responses stress. anxiolytic-like effects of taurine in support existence different mechanisms action, which can play a role preventing stress-related disorders (i.e., modulation GABAA, strychnine-sensitive glycine, NMDA receptors, well antioxidant properties). Herein, we whether modulates some biochemical acutely submitted chemical mechanical stressors. We pretreated for 1 h...
The effects of ethanol exposure on Danio rerio have been studied from the perspectives developmental biology and behavior. However, little is known about prey-predator relationship chemical communication predation risk. Here, we showed that visual contact with a predator triggers stress axis activation in zebrafish. We also observed typical response zebrafish receiving water these conspecifics, indicating fish chemically communicate Our work first to demonstrate how alcohol this interaction....
Chemical communication relating to predation risk is a trait common among fish species. Prey under threat of can signal conspecific fish, which then exhibit defensive responses. Fish also assess by visual cues and change their behavior accordingly. Here, we explored whether these behavioral changes act as alarm signals that are not initially risk. We show shoals zebrafish ( Danio rerio ) visually exposed predator display antipredator behaviors. In addition, maneuvers trigger reactions in...
The presence of drugs and their metabolites in surface waters municipal effluents has been reported several studies, but its impacts on aquatic organisms are not yet well understood. This study investigated the effects acute exposure to antipsychotic risperidone stress behavioral responses zebrafish. It became clear that intermediate concentration inhibited hypothalamic-pituitary-interrenal axis displayed anxiolytic-like data presented here suggest this environments can alter neuroendocrine...
Environmental enrichment is widely used to improve welfare and behavioral performance of animal species. It ensures housing laboratory animals in environments with space complexity that enable the expression their normal repertoire. Auditory by exposure classical music decreases abnormal behaviors endocrine stress responses humans, non-humans primates, rodents. However, little known about role auditory zebrafish. Given growing importance zebrafish for neuroscience research, such studies...
Fluoxetine is a selective serotonin reuptake inhibitor that increases concentration in the central nervous system and modulates various systems, including control of sympathetic outflow hypothalamus-pituitary-adrenal. However, it not yet established whether fluoxetine can modulate responses to stressors stimulants (physical or chemical) trigger cortisol response zebrafish. We demonstrate blunts physical stress, but chemical stress.
We investigated chemical cues among groups of zebrafish (Danio rerio) when communicating information about the risk predation. found that visual predator (tiger Oscar, Astronotus ocellatus) did not increase whole-body cortisol levels in but water conditioned by these (donor) stressed (target) conspecifics, thereby increasing cortisol. This finding was confirmed were different aquaria and communicated exclusively via transfer. result indicates stress induced target does depend on an donor...