1
|
Al-Zoubi RM, Abu-Hijleh H, Zarour A, Zakaria ZZ, Yassin A, Al-Ansari AA, Al-Asmakh M, Bawadi H. Zebrafish Model in Illuminating the Complexities of Post-Traumatic Stress Disorders: A Unique Research Tool. Int J Mol Sci 2024; 25:4895. [PMID: 38732113 PMCID: PMC11084870 DOI: 10.3390/ijms25094895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 02/13/2024] [Accepted: 02/16/2024] [Indexed: 05/13/2024] Open
Abstract
Post-traumatic stress disorder (PTSD) is a debilitating psychological condition that may develop in certain individuals following exposure to life-threatening or traumatic events. Distressing symptoms, including flashbacks, are characterized by disrupted stress responses, fear, anxiety, avoidance tendencies, and disturbances in sleep patterns. The enduring effects of PTSD can profoundly impact personal and familial relationships, as well as social, medical, and financial stability. The prevalence of PTSD varies among different populations and is influenced by the nature of the traumatic event. Recently, zebrafish have emerged as a valuable model organism in studying various conditions and disorders. Zebrafish display robust behavioral patterns that can be effectively quantified using advanced video-tracking tools. Due to their relatively simple nervous system compared to humans, zebrafish are particularly well suited for behavioral investigations. These unique characteristics make zebrafish an appealing model for exploring the underlying molecular and genetic mechanisms that govern behavior, thus offering a powerful comparative platform for gaining deeper insights into PTSD. This review article aims to provide updates on the pathophysiology of PTSD and the genetic responses associated with psychological stress. Additionally, it highlights the significance of zebrafish behavior as a valuable tool for comprehending PTSD better. By leveraging zebrafish as a model organism, researchers can potentially uncover novel therapeutic interventions for the treatment of PTSD and contribute to a more comprehensive understanding of this complex condition.
Collapse
Affiliation(s)
- Raed M. Al-Zoubi
- Department of Chemistry, Jordan University of Science and Technology, P.O. Box 3030, Irbid 22110, Jordan;
- Surgical Research Section, Department of Surgery, Hamad Medical Corporation, Doha P.O. Box 3050, Qatar; (A.Y.); (A.A.A.-A.)
- Department of Biomedical Sciences, QU-Health, College of Health Sciences, Qatar University, Doha 2713, Qatar
| | - Haya Abu-Hijleh
- Department of Human Nutrition, QU-Health, College of Health Sciences, Qatar University, Doha 2713, Qatar; (H.A.-H.); (M.A.-A.)
| | - Ahmad Zarour
- Department of Surgery, Acute Care Surgery, Hamad Medical Corporation, Doha P.O. Box 3050, Qatar;
| | - Zain Z. Zakaria
- Vice President for Medical and Health Sciences Office, QU-Health, Qatar University, Doha 2713, Qatar;
| | - Aksam Yassin
- Surgical Research Section, Department of Surgery, Hamad Medical Corporation, Doha P.O. Box 3050, Qatar; (A.Y.); (A.A.A.-A.)
- Center of Medicine and Health Sciences, Dresden International University, 01069 Dresden, Germany
| | - Abdulla A. Al-Ansari
- Surgical Research Section, Department of Surgery, Hamad Medical Corporation, Doha P.O. Box 3050, Qatar; (A.Y.); (A.A.A.-A.)
| | - Maha Al-Asmakh
- Department of Human Nutrition, QU-Health, College of Health Sciences, Qatar University, Doha 2713, Qatar; (H.A.-H.); (M.A.-A.)
- Biomedical Research Center, Qatar University, Doha P.O. Box 2713, Qatar
| | - Hiba Bawadi
- Department of Human Nutrition, QU-Health, College of Health Sciences, Qatar University, Doha 2713, Qatar; (H.A.-H.); (M.A.-A.)
| |
Collapse
|
2
|
Ma M, Brunal AA, Clark KC, Studtmann C, Stebbins K, Higashijima SI, Pan YA. Deficiency in the cell-adhesion molecule dscaml1 impairs hypothalamic CRH neuron development and perturbs normal neuroendocrine stress axis function. Front Cell Dev Biol 2023; 11:1113675. [PMID: 36875755 PMCID: PMC9978177 DOI: 10.3389/fcell.2023.1113675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 01/30/2023] [Indexed: 02/18/2023] Open
Abstract
The corticotropin-releasing hormone (CRH)-expressing neurons in the hypothalamus are critical regulators of the neuroendocrine stress response pathway, known as the hypothalamic-pituitary-adrenal (HPA) axis. As developmental vulnerabilities of CRH neurons contribute to stress-associated neurological and behavioral dysfunctions, it is critical to identify the mechanisms underlying normal and abnormal CRH neuron development. Using zebrafish, we identified Down syndrome cell adhesion molecule like-1 (dscaml1) as an integral mediator of CRH neuron development and necessary for establishing normal stress axis function. In dscaml1 mutant animals, hypothalamic CRH neurons had higher crhb (the CRH homolog in zebrafish) expression, increased cell number, and reduced cell death compared to wild-type controls. Physiologically, dscaml1 mutant animals had higher baseline stress hormone (cortisol) levels and attenuated responses to acute stressors. Together, these findings identify dscaml1 as an essential factor for stress axis development and suggest that HPA axis dysregulation may contribute to the etiology of human DSCAML1-linked neuropsychiatric disorders.
Collapse
Affiliation(s)
- Manxiu Ma
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Virginia Tech, Roanoke, VA, United States
| | - Alyssa A Brunal
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Virginia Tech, Roanoke, VA, United States.,Translational Biology Medicine and Health Graduate Program, Virginia Tech, Blacksburg, VA, United States
| | - Kareem C Clark
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Virginia Tech, Roanoke, VA, United States
| | - Carleigh Studtmann
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Virginia Tech, Roanoke, VA, United States.,Translational Biology Medicine and Health Graduate Program, Virginia Tech, Blacksburg, VA, United States
| | - Katelyn Stebbins
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Virginia Tech, Roanoke, VA, United States.,Translational Biology Medicine and Health Graduate Program, Virginia Tech, Blacksburg, VA, United States.,Virginia Tech Carilion School of Medicine, Roanoke, VA, United States
| | - Shin-Ichi Higashijima
- National Institutes of Natural Sciences, Exploratory Research Center on Life and Living Systems, National Institute for Basic Biology, Okazaki, Aichi, Japan
| | - Y Albert Pan
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Virginia Tech, Roanoke, VA, United States.,Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Tech, Blacksburg, VA, United States.,Department of Psychiatry and Behavioral Medicine, Virginia Tech Carilion School of Medicine, Roanoke, VA, United States
| |
Collapse
|
3
|
Lucas Luz W, Santos-Silva M, Cardoso PB, Assad N, Moraes ERDS, Grisólia ABA, Braga DV, Leão LKR, de Moraes SAS, Passos ADC, Batista EDJO, Gouveia A, Oliveira KRHM, Herculano AM. Putative Activation of the CB1 Cannabinoid Receptors Prevents Anxiety-Like Behavior, Oxidative Stress, and GABA Decrease in the Brain of Zebrafish Submitted to Acute Restraint Stress. Front Behav Neurosci 2021; 14:598812. [PMID: 33536881 PMCID: PMC7848035 DOI: 10.3389/fnbeh.2020.598812] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 12/04/2020] [Indexed: 12/14/2022] Open
Abstract
Anxiety disorder is a well-recognized condition observed in subjects submitted to acute stress. Although the brain mechanisms underlying this disorder remain unclear, the available evidence indicates that oxidative stress and GABAergic dysfunction mediate the generation of stress-induced anxiety. Cannabinoids are known to be efficient modulators of behavior, given that the activation of the cannabinoid receptors type-1 (CB1 receptors) induces anxiolytic-like effects in animal models. In the present study, we aimed to describe the effects of the stimulation of the CB1 receptors on anxiety-like behavior, oxidative stress, and the GABA content of the brains of zebrafish submitted to acute restraint stress (ARS). The animals submitted to the ARS protocol presented evident anxiety-like behavior with increased lipid peroxidation in the brain tissue. The evaluation of the levels of GABA in the zebrafish telencephalon presented decreased levels of GABA in the ARS group in comparison with the control. Treatment with ACEA, a specific CB1 receptor agonist, prevented ARS-induced anxiety-like behavior and oxidative stress in the zebrafish brain. ACEA treatment also prevented a decrease in GABA in the telencephalon of the animals submitted to the ARS protocol. Overall, these preclinical data strongly suggest that the CB1 receptors represent a potential target for the development of the treatment of anxiety disorders elicited by acute stress.
Collapse
Affiliation(s)
- Waldo Lucas Luz
- Laboratory of Experimental Neuropharmacology, Institute of Biological Sciences, Federal University of Pará, Belém, Brazil
| | - Mateus Santos-Silva
- Laboratory of Experimental Neuropharmacology, Institute of Biological Sciences, Federal University of Pará, Belém, Brazil
| | - Patrick Bruno Cardoso
- Laboratory of Experimental Neuropharmacology, Institute of Biological Sciences, Federal University of Pará, Belém, Brazil
| | - Nadyme Assad
- Laboratory of Experimental Neuropharmacology, Institute of Biological Sciences, Federal University of Pará, Belém, Brazil
| | | | - Alan Barroso Araújo Grisólia
- Laboratory of Experimental Neuropharmacology, Institute of Biological Sciences, Federal University of Pará, Belém, Brazil
| | - Danielle Valente Braga
- Laboratory of Experimental Neuropharmacology, Institute of Biological Sciences, Federal University of Pará, Belém, Brazil
| | - Luana Ketlen Reis Leão
- Laboratory of Experimental Neuropharmacology, Institute of Biological Sciences, Federal University of Pará, Belém, Brazil
| | | | - Adelaide da Conceição Passos
- Laboratory of Experimental Neuropharmacology, Institute of Biological Sciences, Federal University of Pará, Belém, Brazil
| | - Evander de Jesus Oliveira Batista
- Laboratory of Experimental Neuropharmacology, Institute of Biological Sciences, Federal University of Pará, Belém, Brazil.,Laboratory of Protozoology, Tropical Medicine Center, Federal University of Pará, Belém, Brazil
| | - Amauri Gouveia
- Laboratory of Neuroscience and Behavior, Federal University of Pará, Belém, Brazil
| | - Karen R H Matos Oliveira
- Laboratory of Experimental Neuropharmacology, Institute of Biological Sciences, Federal University of Pará, Belém, Brazil
| | - Anderson Manoel Herculano
- Laboratory of Experimental Neuropharmacology, Institute of Biological Sciences, Federal University of Pará, Belém, Brazil
| |
Collapse
|
4
|
Demin KA, Taranov AS, Ilyin NP, Lakstygal AM, Volgin AD, de Abreu MS, Strekalova T, Kalueff AV. Understanding neurobehavioral effects of acute and chronic stress in zebrafish. Stress 2021; 24:1-18. [PMID: 32036720 DOI: 10.1080/10253890.2020.1724948] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Stress is a common cause of neuropsychiatric disorders, evoking multiple behavioral, endocrine and neuro-immune deficits. Animal models have been extensively used to understand the mechanisms of stress-related disorders and to develop novel strategies for their treatment. Complementing rodent and clinical studies, the zebrafish (Danio rerio) is one of the most important model organisms in biomedicine. Rapidly becoming a popular model species in stress neuroscience research, zebrafish are highly sensitive to both acute and chronic stress, and show robust, well-defined behavioral and physiological stress responses. Here, we critically evaluate the utility of zebrafish-based models for studying acute and chronic stress-related CNS pathogenesis, assess the advantages and limitations of these aquatic models, and emphasize their relevance for the development of novel anti-stress therapies. Overall, the zebrafish emerges as a powerful and sensitive model organism for stress research. Although these fish generally display evolutionarily conserved behavioral and physiological responses to stress, zebrafish-specific aspects of neurogenesis, neuroprotection and neuro-immune responses may be particularly interesting to explore further, as they may offer additional insights into stress pathogenesis that complement (rather than merely replicate) rodent findings. Compared to mammals, zebrafish models are also characterized by increased availability of gene-editing tools and higher throughput of drug screening, thus being able to uniquely empower translational research of genetic determinants of stress and resilience, as well as to foster innovative CNS drug discovery and the development of novel anti-stress therapies.
Collapse
Affiliation(s)
- Konstantin A Demin
- Institute of Experimental Biomedicine, Almazov National Medical Research Center, Ministry of Healthcare of Russian Federation, St. Petersburg, Russia
- Laboratory of Biological Psychiatry, Institute of Translational Biomedicine, St. Petersburg State University, St. Petersburg, Russia
| | - Alexander S Taranov
- Laboratory of Biological Psychiatry, Institute of Translational Biomedicine, St. Petersburg State University, St. Petersburg, Russia
- Laboratory of Preclinical Bioscreening, Granov Russian Research Center of Radiology and Surgical Technologies, Ministry of Healthcare of Russian Federation, Pesochny, Russia
| | - Nikita P Ilyin
- Laboratory of Biological Psychiatry, Institute of Translational Biomedicine, St. Petersburg State University, St. Petersburg, Russia
- Laboratory of Preclinical Bioscreening, Granov Russian Research Center of Radiology and Surgical Technologies, Ministry of Healthcare of Russian Federation, Pesochny, Russia
| | - Anton M Lakstygal
- Laboratory of Biological Psychiatry, Institute of Translational Biomedicine, St. Petersburg State University, St. Petersburg, Russia
- Laboratory of Preclinical Bioscreening, Granov Russian Research Center of Radiology and Surgical Technologies, Ministry of Healthcare of Russian Federation, Pesochny, Russia
| | - Andrey D Volgin
- Laboratory of Preclinical Bioscreening, Granov Russian Research Center of Radiology and Surgical Technologies, Ministry of Healthcare of Russian Federation, Pesochny, Russia
| | - Murilo S de Abreu
- Bioscience Institute, University of Passo Fundo, Passo Fundo, Brazil
- The International Zebrafish Neuroscience Research Consortium (ZNRC), Slidell, LA, USA
| | - Tatyana Strekalova
- I.M. Sechenov First Moscow State Medical University, Moscow, Russia
- Maastricht University, Maastricht, The Netherlands
- Research Institute of General Pathology and Pathophysiology, Moscow, Russia
| | - Allan V Kalueff
- School of Pharmacy, Southwest University, Chongqing, China
- Ural Federal University, Ekaterinburg, Russia
| |
Collapse
|
5
|
Haney WA, Moussaoui B, Strother JA. Prolonged exposure to stressors suppresses exploratory behavior in zebrafish larvae. J Exp Biol 2020; 223:jeb224964. [PMID: 33106298 DOI: 10.1242/jeb.224964] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 10/19/2020] [Indexed: 11/20/2022]
Abstract
Environmental stressors induce rapid physiological and behavioral shifts in vertebrate animals. However, the neurobiological mechanisms responsible for stress-induced changes in behavior are complex and not well understood. Similar to mammalian vertebrates, zebrafish adults display a preference for dark environments that is associated with predator avoidance, enhanced by stressors, and broadly used in assays for anxiety-like behavior. Although the larvae of zebrafish are a prominent model organism for understanding neural circuits, few studies have examined the effects of stressors on their behavior. This study examines the effects of noxious chemical and electric shock stressors on locomotion and light preference in zebrafish larvae. We found that both stressors elicited similar changes in behavior. Acute exposure induced increased swimming activity, while prolonged exposure depressed activity. Neither stressor produced a consistent shift in light-dark preference, but prolonged exposure to these stressors resulted in a pronounced decrease in exploration of different visual environments. We also examined the effects of exposure to a noxious chemical cue using whole-brain calcium imaging, and identified neural correlates in the area postrema, an area of the hindbrain containing noradrenergic and dopaminergic neurons. Pharmaceutical blockade experiments showed that α-adrenergic receptors contribute to the behavioral response to an acute stressor but are not necessary for the response to a prolonged stressor. These results indicate that zebrafish larvae have complex behavioral responses to stressors comparable to those of adult animals, and also suggest that these responses are mediated by similar neural pathways.
Collapse
Affiliation(s)
- William A Haney
- Department of Integrative Biology, Oregon State University, Corvallis, OR 97331, USA
| | - Bushra Moussaoui
- Department of Integrative Biology, Oregon State University, Corvallis, OR 97331, USA
| | - James A Strother
- Department of Integrative Biology, Oregon State University, Corvallis, OR 97331, USA
| |
Collapse
|
6
|
The propensity for re-triggered predation fear in a prey fish. Sci Rep 2020; 10:9253. [PMID: 32518253 PMCID: PMC7283299 DOI: 10.1038/s41598-020-65735-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 05/08/2020] [Indexed: 11/09/2022] Open
Abstract
Variation in predation risk can drive variation in fear intensity, the length of fear retention, and whether fear returns after waning. Using Trinidadian guppies, we assessed whether a low-level predation threat could easily re-trigger fear after waning. First, we show that background risk induced neophobia after either multiple exposures to a low-level threat or a single exposure to a high-level threat. However, a single exposure to the low-level threat had no such effect. The individuals that received multiple background exposures to the low-level threat retained their neophobic phenotype over an 8-day post-risk period, and this response was intensified by a single re-exposure to the low-level threat on day 7. In contrast, the neophobia following the single high-level threat waned over the 8-day period, but the single re-exposure to the low-level threat on day 7 re-triggered the neophobic phenotype. Thus, despite the single low-level exposure being insufficient to induce neophobia, it significantly elevated existing fear and re-triggered fear that had waned. We highlight how such patterns of fear acquisition, retention, and rapid re-triggering play an important role in animal ecology and evolution and outline parallels between the neophobic phenotype in fishes and dimensions of post-traumatic stress in humans.
Collapse
|
7
|
Abstract
Abstract
Predation fear is a unifying theme across vertebrate taxa. Here, we explored how the frequency and duration of predation risk affects postrisk fear behavior in Trinidadian guppies. We first exposed individuals to visual cues of potential predators for 3 days, either frequently (6×/day) or infrequently (1×/day). Each exposure lasted for either a relatively brief (5 min) or long (30 min) duration, whereas a control group consisted of no risk exposures. One day later, we quantified guppy behavior. All background risk treatments induced a fear response toward a novel odor (i.e., neophobia), and individuals previously exposed to frequent bouts of brief risk showed elevated baseline fear. Although neophobic responses were initially similar across risk treatments (1 day later), retention of this response differed. After 8 days, only individuals previously exposed to brief bouts of risk (both frequent and infrequent) maintained neophobic responses, whereas their initially higher level of baseline fear remained elevated but was no longer significantly different from the control. These results increase our understanding of temporal factors that affect the intensity and retention of fear that persists after risk exposure, which may have applications across vertebrates in relation to problems with fearful phenotypes.
Collapse
|
8
|
Yang L, Wang J, Wang D, Hu G, Liu Z, Yan D, Serikuly N, Alpyshov ET, Demin KA, Strekalova T, de Abreu MS, Song C, Kalueff AV. Delayed behavioral and genomic responses to acute combined stress in zebrafish, potentially relevant to PTSD and other stress-related disorders: Focus on neuroglia, neuroinflammation, apoptosis and epigenetic modulation. Behav Brain Res 2020; 389:112644. [PMID: 32344037 DOI: 10.1016/j.bbr.2020.112644] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 03/22/2020] [Accepted: 04/05/2020] [Indexed: 12/30/2022]
Abstract
Stress is a common trigger of stress-related illnesses, such as anxiety, phobias, depression and post-traumatic stress disorder (PTSD). Various animal models successfully reproduce core behaviors of these clinical conditions. Here, we develop a novel zebrafish model of stress (potentially relevant to human stress-related disorders), based on delayed persistent behavioral, endocrine and genomic responses to an acute severe 'combined' stressor. Specifically, one week after adult zebrafish were exposed to a complex combined 90-min stress, we assessed their behaviors in the novel tank and the light-dark box tests, as well as whole-body cortisol and brain gene expression, focusing on genomic biomarkers of microglia, astrocytes, neuroinflammation, apoptosis and epigenetic modulation. Overall, stressed fish displayed persistent anxiety-like behavior, elevated whole-body cortisol, as well as upregulated brain mRNA expression of genes encoding the glucocorticoid receptor, neurotrophin BDNF and its receptors (TrkB and P75), CD11b (a general microglial biomarker), COX-2 (an M1-microglial biomarker), CD206 (an M2-microglial biomarker), GFAP (a general astrocytal biomarker), C3 (an A1-astrocytal biomarker), S100α10 (an A2-astrocytal biomarker), as well as pro-inflammatory cytokines IL-6, IL-1β, IFN-γ and TNF-α. Stress exposure also persistently upregulated the brain expression of several key apoptotic (Bax, Caspase-3, Bcl-2) and epigenetic genes (DNMT3a, DNMT3b, HAT1, HDAC4) in these fish. Collectively, the present model not only successfully recapitulates lasting behavioral and endocrine symptoms of clinical stress-related disorders, but also implicates changes in neuroglia, neuroinflammation, apoptosis and epigenetic modulation in long-term effects of stress pathogenesis in vivo.
Collapse
Affiliation(s)
- LongEn Yang
- School of Pharmacy, Southwest University, Chongqing, China
| | - Jingtao Wang
- School of Pharmacy, Southwest University, Chongqing, China
| | - Dongmei Wang
- School of Pharmacy, Southwest University, Chongqing, China
| | - Guojun Hu
- School of Pharmacy, Southwest University, Chongqing, China
| | - ZiYuan Liu
- School of Pharmacy, Southwest University, Chongqing, China
| | - Dongni Yan
- School of Pharmacy, Southwest University, Chongqing, China
| | - Nazar Serikuly
- School of Pharmacy, Southwest University, Chongqing, China
| | - Erik T Alpyshov
- School of Pharmacy, Southwest University, Chongqing, China; Granov Russian Scientific Center of Radiology and Surgical Technologies, Ministry of Healthcare of Russian Federation, St. Petersburg, Russia; Scientific Research Institute of Physiology and Basic Medicine, Novosibirsk, Russia; Institute of Medicine and Psychology, Novosibirsk State University, Novosibirsk, Russia
| | - Konstantin A Demin
- Institute of Experimental Medicine, Almazov Medical Research Center, Ministy of Healthcare of Russian Federation, St. Petersburg, Russia
| | - Tatyana Strekalova
- I.M. Sechenov First Moscow State Medical University, Moscow, Russia; Maastricht University, Maastricht, the Netherlands; Research Institute of General Pathology and Pathophysiology, Moscow, Russia
| | - Murilo S de Abreu
- Bioscience Institute, University of Passo Fundo, Passo Fundo, Brazil
| | - Cai Song
- Institute for Marine Drugs and Nutrition, Marine Medicine Development Center, Shenzhen Institute, Guangdong Ocean University, Zhanjiang, China
| | - Allan V Kalueff
- School of Pharmacy, Southwest University, Chongqing, China; Ural Federal University, Ekaterinburg, Russia.
| |
Collapse
|
9
|
O'Daniel MP, Petrunich-Rutherford ML. Effects of chronic prazosin, an alpha-1 adrenergic antagonist, on anxiety-like behavior and cortisol levels in a chronic unpredictable stress model in zebrafish ( Danio rerio). PeerJ 2020; 8:e8472. [PMID: 32030326 PMCID: PMC6996499 DOI: 10.7717/peerj.8472] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Accepted: 12/27/2019] [Indexed: 01/05/2023] Open
Abstract
Post-traumatic stress disorder (PTSD) is often associated with significant neuroendocrine dysfunction and a variety of other symptoms. Today, there are limited efficacious treatment options for PTSD, none of which directly target the dysfunction observed with the hypothalamic-pituitary-adrenal (HPA) axis. The development of new pharmacological treatments is expensive and time consuming; thus, there is utility in repurposing compounds already approved for use in other conditions. One medication in particular that has shown promise for the alleviation of PTSD symptoms is prazosin, an alpha-1 adrenergic receptor antagonist used to treat hypertension. While there have been many studies indicating the efficacy of prazosin in the treatment of PTSD symptoms, no studies fully elucidate mechanisms elicited by this treatment, nor is it clear if prazosin normalizes neuroendocrine dysfunction associated with trauma exposure. The use of zebrafish (Danio rerio) has been growing in popularity, in part, due to the homology of the stress response system with mammals. In this study, the zebrafish model was utilized to determine behavioral and biological changes induced by chronic unpredictable stress (CUS) and how these effects could be modulated by chronic prazosin treatment. The results indicated that 7d of CUS increased anxiety-like behavior in the novel tank test and decreased basal levels of cortisol. Chronic (7d) prazosin treatment decreased anxiety-like behaviors overall but did not appear to affect CUS-induced changes in behavior and basal cortisol levels. This suggests that the clinical effectiveness of prazosin may not normalize dysregulated stress responses prevalent in many patients with PTSD, but that prazosin-induced relief from anxiety in stress-related conditions may involve an alternative mechanism other than by normalizing neuroendocrine dysfunction.
Collapse
Affiliation(s)
- Michael P O'Daniel
- Department of Psychology, Indiana University Northwest, Gary, IN, United States of America
| | | |
Collapse
|
10
|
Crane AL, Ferrari MCO, Rivera-Hernández IAE, Brown GE. Microhabitat complexity influences fear acquisition in fathead minnows. Behav Ecol 2019. [DOI: 10.1093/beheco/arz187] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Habitat varies in structure, with animals often preferring a certain degree of microhabitat complexity that facilitates fitness-related activities such as predator avoidance. Environments with high predation risk can induce elevated baseline fear and neophobia in prey, but whether microhabitat complexity influences the acquisition of neophobia has yet to be reported. Here, we tested whether exposure to predation risk induces different levels of fear in microhabitats that differed in complexity. We exposed fathead minnows, Pimephales promelas, to predation risk repeatedly (12 times over 4 days) in the form of damage-released chemical alarm cues (compared to water control) in tanks with vertical plant structure distributed either throughout the tank (complex habitat) or clumped together (simple habitat). Then, we tested minnows before and after exposure to a novel odor in tanks with either the same microhabitat complexity (i.e., familiar habitats) or in tanks with novel habitat that had different substrate structure and no vertical structure. Minnows in the complex habitat showed less overall movement one day after the background risk period, whereas individuals in the simple habitat showed reduced movement regardless of prior risk exposure. We observed stronger effects in the novel habitat, where background risk in both simple and complex habitats caused neophobia. However, individuals from the simple background habitat showed higher baseline fear behaviors. Hence, for minnows, low microhabitat complexity appears to lead to elevated fear, which remains even after a habitat change.
Collapse
Affiliation(s)
- Adam L Crane
- Department of Biology, Concordia University, Montreal, Q, Canada
| | - Maud C O Ferrari
- Biomedical Sciences, WCVM, University of Saskatchewan, Saskatoon, SK, Canada
| | | | - Grant E Brown
- Department of Biology, Concordia University, Montreal, Q, Canada
| |
Collapse
|
11
|
Abstract
In this study we investigated the ability of zebrafish to discriminate visual signs and associate them with a reward in an associative-learning protocol including distractors. Moreover, we studied the effects of caffeine on animal performance in the task. After being trained to associate a specific image pattern with a reward (food) in the presence of other, distractor images, the fish were challenged to locate the exact cue associated with the reward. The distractors were same-colored pattern images similar to the target. Both the target and distractors were continually moved around the tank. Fish were exposed to three caffeine concentrations for 14 days: 0 mg/L (control, n = 12), 10 mg/L (n = 14), and 50 mg/L (n = 14). Zebrafish spent most of the time close to the target (where the reward was offered) under the effects of 0 and 10 mg/L caffeine, and the shortest latency to reach the target was observed for the 10-mg/L caffeine group. Both caffeine treatments (10 and 50 mg/L) increased the average speed and distance traveled when compared to the control group. This study confirms previous results showing that zebrafish demonstrate conditioned learning ability; however, low-dose caffeine exposure seems to favor visual cue discrimination and to increase zebrafish performance in a multicue discrimination task, in which primarily focus and attention are required in order to obtain the reward.
Collapse
|
12
|
Crane AL, Bairos-Novak KR, Sacco LH, Ferrari MCO. The socially mediated recovery of a fearful fish paired with periodically replaced calm models. Proc Biol Sci 2018; 285:20180739. [PMID: 30282647 PMCID: PMC6191702 DOI: 10.1098/rspb.2018.0739] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Accepted: 09/11/2018] [Indexed: 12/28/2022] Open
Abstract
Social learning is an important mechanism for acquiring knowledge about environmental risk. However, little work has explored the learning of safety and how such learning outcomes are shaped by the social environment. Here, we exposed minnows, Pimephales promelas, to a high-risk environment to induce behavioural responses associated with fear (e.g. neophobia). We then used the presence of calm conspecific models (low-risk individuals) to weaken these responses. When observers (individuals from the high-risk environment) and models were paired consistently in a one-on-one setting, the observers showed no recovery (i.e. no weakening of the fear responses), and instead the models indirectly acquired those responses (i.e. a socially transmitted state of fear). However, observers paired with models that were periodically replaced with new calm models showed a significant recovery, and each new model showed diminished socially transmitted fear. We argue that our understanding of predation-related fear and social information transfer can prove fruitful in understanding problems with fear and stress across animal taxa, including among humans who experience post-traumatic stress and secondary trauma. Our findings indicate that the periodic replacement of models can promote fear recovery in observers and reduce socially transmitted fear in models.
Collapse
Affiliation(s)
- Adam L Crane
- Department of Biology, University of Saskatchewan, 112 Science Place, Saskatoon, SK, Canada S7N 5E2
| | - Kevin R Bairos-Novak
- Department of Biology, University of Saskatchewan, 112 Science Place, Saskatoon, SK, Canada S7N 5E2
| | - Laurel H Sacco
- Department of Biology, University of Saskatchewan, 112 Science Place, Saskatoon, SK, Canada S7N 5E2
| | - Maud C O Ferrari
- Department of Veterinary Biomedical Sciences, University of Saskatchewan, 52 Campus Drive, Saskatoon, SK, Canada S7N 5B4
| |
Collapse
|
13
|
Maximino C, Meinerz DL, Fontana BD, Mezzomo NJ, Stefanello FV, de S. Prestes A, Batista CB, Rubin MA, Barbosa NV, Rocha JBT, Lima MG, Rosemberg DB. Extending the analysis of zebrafish behavioral endophenotypes for modeling psychiatric disorders: Fear conditioning to conspecific alarm response. Behav Processes 2018; 149:35-42. [DOI: 10.1016/j.beproc.2018.01.020] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 01/29/2018] [Accepted: 01/30/2018] [Indexed: 12/13/2022]
|
14
|
Soh Z, Matsuno M, Yoshida M, Tsuji T. Real-Time Cameraless Measurement System Based on Bioelectrical Ventilatory Signals to Evaluate Fear and Anxiety. Zebrafish 2018; 15:133-144. [DOI: 10.1089/zeb.2017.1491] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Affiliation(s)
- Zu Soh
- Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
| | - Motoki Matsuno
- Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
| | - Masayuki Yoshida
- Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
| | - Toshio Tsuji
- Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
| |
Collapse
|
15
|
|
16
|
Nema S, Bhargava Y. Open-RAC: Open-Design, Recirculating and Auto-Cleaning Zebrafish Maintenance System. Zebrafish 2017; 14:371-378. [DOI: 10.1089/zeb.2016.1403] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Shubham Nema
- Molecular Engineering and Imaging Lab, School of Biological Sciences, Dr. Harisingh Gour Central University, Sagar, Madhya Pradesh, India
| | - Yogesh Bhargava
- Molecular Engineering and Imaging Lab, School of Biological Sciences, Dr. Harisingh Gour Central University, Sagar, Madhya Pradesh, India
| |
Collapse
|
17
|
Levitas-Djerbi T, Appelbaum L. Modeling sleep and neuropsychiatric disorders in zebrafish. Curr Opin Neurobiol 2017; 44:89-93. [PMID: 28414966 DOI: 10.1016/j.conb.2017.02.017] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 02/28/2017] [Indexed: 01/03/2023]
Abstract
What are the molecular and cellular mechanisms that link neurological disorders and sleep disturbances? The transparent zebrafish model could bridge this gap in knowledge due to its unique genetic and imaging toolbox, and amenability to high-throughput screening. Sleep is well-characterized in zebrafish and key regulators of the sleep/wake cycle are conserved, including melatonin and hypocretin/orexin (Hcrt), whereas novel sleep regulating proteins are continually being identified, such as Kcnh4a, Neuromedin U, and QRFP. Sleep deficiencies have been observed in various zebrafish models for genetic neuropsychiatric disorders, ranging from psychomotor retardation and autism to anxiety disorders. Understanding the link between neuropsychiatric disorders and sleep phenotypes in zebrafish may ultimately provide a platform for identifying therapeutic targets for clinical trials in humans.
Collapse
Affiliation(s)
- Talia Levitas-Djerbi
- The Faculty of Life Sciences and the Multidisciplinary Brain Research Center, Bar-Ilan University, Ramat-Gan 5290002, Israel
| | - Lior Appelbaum
- The Faculty of Life Sciences and the Multidisciplinary Brain Research Center, Bar-Ilan University, Ramat-Gan 5290002, Israel.
| |
Collapse
|
18
|
Spagnoli S, Sanders J, Kent ML. The common neural parasite Pseudoloma neurophilia causes altered shoaling behaviour in adult laboratory zebrafish (Danio rerio) and its implications for neurobehavioural research. JOURNAL OF FISH DISEASES 2017; 40:443-446. [PMID: 27396581 PMCID: PMC5226921 DOI: 10.1111/jfd.12512] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 05/09/2016] [Accepted: 05/10/2016] [Indexed: 05/04/2023]
Affiliation(s)
- Sean Spagnoli
- Department of Biomedical Sciences, Oregon State University
| | | | | |
Collapse
|
19
|
Time-dependent sensitization of stress responses in zebrafish: A putative model for post-traumatic stress disorder. Behav Processes 2016; 128:70-82. [DOI: 10.1016/j.beproc.2016.04.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Revised: 04/05/2016] [Accepted: 04/15/2016] [Indexed: 01/22/2023]
|
20
|
Abstract
In modern biomedicine, the increasing need to develop experimental models to further our understanding of disease conditions and delineate innovative treatments has found in the zebrafish (Danio rerio) an experimental model, and indeed a valuable asset, to close the gap between in vitro and in vivo assays. Translation of ideas at a faster pace is vital in the field of neurodegeneration, with the attempt to slow or prevent the dramatic impact on the society's welfare being an essential priority. Our research group has pioneered the use of zebrafish to contribute to the quest for faster and improved understanding and treatment of neurodegeneration in concert with, and inspired by, many others who have primed the study of the zebrafish to understand and search for a cure for disorders of the nervous system. Aware of the many advantages this vertebrate model holds, here, we present an update on the recent zebrafish models available to study neurodegeneration with the goal of stimulating further interest and increasing the number of diseases and applications for which they can be exploited. We shall do so by citing and commenting on recent breakthroughs made possible via zebrafish, highlighting their benefits for the testing of therapeutics and dissecting of disease mechanisms.
Collapse
Affiliation(s)
- Rebeca Martín-Jiménez
- Department of Comparative Biomedical Sciences, Royal Veterinary College, Royal College Street, London, NW1 0TU, UK
| | | | | |
Collapse
|
21
|
Calcagno E, Durando P, Valdés ME, Franchioni L, Bistoni MDLÁ. Effects of carbamazepine on cortisol levels and behavioral responses to stress in the fish Jenynsia multidentata. Physiol Behav 2016; 158:68-75. [PMID: 26907956 DOI: 10.1016/j.physbeh.2016.02.025] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 02/15/2016] [Accepted: 02/16/2016] [Indexed: 01/04/2023]
Abstract
Carbamazepine (CBZ) is an anticonvulsant drug, prescribed worldwide for the treatment of epilepsy, bipolar disorder and trigeminal neuralgia, which has been frequently detected in aquatic environments. The objective of this study was to analyze if CBZ modifies scototaxis and shoaling behaviors and/or whole-body cortisol levels of the one-sided livebearing fish Jenynsia multidentata under stress condition. Female adults of J. multidentata were exposed to 0, 10, 50 and 200μgCBZ/L during 14days. After CBZ exposure, fish were subjected to restraint stress during 15min. Control animals were not exposed to CBZ or stress. In the light/dark preference test (scototaxis), the individuals under acute restraint stress (without CBZ) exhibited a significant increase in the mean speed and in the time spent both in the light compartment and in the bottom of the tank with respect to controls. They also showed a tendency to stay longer frozen in the light compartment. Fish exposed to 10 and 50μgCBZ/L showed a significant reduction in mean speed compared to stressed fish without CBZ. A reduction in the time spent in the bottom of the tank was also observed in fish exposed to 10μgCBZ/L. Fish exposed to 200μgCBZ/L showed a decreasing tendency in all behavioral endpoints (time spent in the light compartment, mean speed, time spent at the bottom and freezing) in comparison to stressed fish not exposed to CBZ. Considering whole-body cortisol results, fish under acute restraint stress (without CBZ) significantly increased their hormone levels with respect to the control group, while fish exposed to CBZ and acute restraint stress, significantly decreased their whole-body cortisol levels. There were no significant changes in shoaling behavior due to either stress or CBZ exposure and no significant differences in whole-body cortisol levels between experimental groups. Considering that the light/dark and shoaling tests measure different stress response behaviors regulated by different neuroendocrine systems, these results could indicate that CBZ has a differential effect on fish behavioral stress response and cortisol levels, depending on the behavioral test used and stressor applied.
Collapse
Affiliation(s)
- Emilia Calcagno
- Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, Av. Vélez Sarsfield 299, X2500HUA Córdoba, Argentina
| | - Patricia Durando
- Facultad de Ciencias Agropecuarias, Universidad Nacional de Córdoba, Ing. Agr. Félix Aldo Marrone 746, X2500HUA Córdoba, Argentina.
| | - M Eugenia Valdés
- Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI), CONICET-UNC, Medina Allende y Haya de la Torre, Ciudad Universitaria, X2500HUA Córdoba, Argentina
| | - Liliana Franchioni
- Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Medina Allende y Haya de la Torre, Ciudad Universitaria, X2500HUA Córdoba, Argentina
| | - María de los Ángeles Bistoni
- IDEA-Instituto de Diversidad y Ecología Animal, CONICET, Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, Av. Vélez Sarsfield 299, X2500HUA Córdoba, Argentina.
| |
Collapse
|
22
|
Lima MG, Silva SDNDS, Silva RXDC, Oliveira KRHM, Batista EDJO, Maximino C, Herculano AM. Putative involvement of the nitrergic system on the consolidation, but not initiation, of behavioral sensitization after conspecific alarm substance in zebrafish. Pharmacol Biochem Behav 2015; 139 Pt B:127-33. [DOI: 10.1016/j.pbb.2015.08.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2014] [Revised: 06/25/2015] [Accepted: 08/04/2015] [Indexed: 01/13/2023]
|
23
|
Spagnoli S, Xue L, Kent ML. The common neural parasite Pseudoloma neurophilia is associated with altered startle response habituation in adult zebrafish (Danio rerio): Implications for the zebrafish as a model organism. Behav Brain Res 2015; 291:351-360. [PMID: 26028515 DOI: 10.1016/j.bbr.2015.05.046] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2015] [Revised: 05/22/2015] [Accepted: 05/27/2015] [Indexed: 01/28/2023]
Abstract
The zebrafish's potential as a model for human neurobehavioral research appears nearly limitless despite its relatively recent emergence as an experimental organism. Since the zebrafish has only been part of the research community for a handful of decades, pathogens from its commercial origins continue to plague laboratory stocks. One such pathogen is Pseudoloma neurophilia, a common microparasite in zebrafish laboratories world-wide that generally produces subclinical infections. Given its high prevalence, its predilection for the host's brain and spinal cord, and the delicate nature of neurobehavioral research, the behavioral consequences of subclinical P. neurophilia infection must be explored. Fish infected via cohabitation were tested for startle response habituation in parallel with controls in a device that administered ten taps over 10 min along with taps at 18 and 60 min to evaluate habituation extinction. After testing, fish were euthanized and evaluated for infection via histopathology. Infected fish had a significantly smaller reduction in startle velocity during habituation compared to uninfected tankmates and controls. Habituation was eliminated in infected and control fish at 18 min, whereas exposed negative fish retained partial habituation at 18 min. Infection was also associated with enhanced capture evasion: Despite the absence of external symptoms, infected fish tended to be caught later than uninfected fish netted from the same tank. The combination of decreased overall habituation, early extinction of habituation compared to uninfected cohorts, and enhanced netting evasion indicates that P. neurophilia infection is associated with a behavioral phenotype distinct from that of controls and uninfected cohorts. Because of its prevalence in zebrafish facilities, P. neurophilia has the potential to insidiously influence a wide range of neurobehavioral studies if these associations are causative. Rigorous health screening is therefore vital to the improvement of the zebrafish as a translational model for human behavior.
Collapse
Affiliation(s)
- Sean Spagnoli
- Oregon State University, Departments of Biomedical Sciences, USA
| | - Lan Xue
- Oregon State University, Departments of Statistics, USA
| | - Michael L Kent
- Oregon State University, Departments of Microbiology, USA.
| |
Collapse
|
24
|
Stewart AM, Ullmann JF, Norton WH, Brennan CH, Parker MO, Gerlai R, Kalueff AV. Molecular psychiatry of zebrafish. Mol Psychiatry 2015; 20:2-17. [PMID: 25349164 PMCID: PMC4318706 DOI: 10.1038/mp.2014.128] [Citation(s) in RCA: 146] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2014] [Revised: 08/27/2014] [Accepted: 08/28/2014] [Indexed: 12/31/2022]
Abstract
Due to their well-characterized neural development and high genetic homology to mammals, zebrafish (Danio rerio) have emerged as a powerful model organism in the field of biological psychiatry. Here, we discuss the molecular psychiatry of zebrafish, and its implications for translational neuroscience research and modeling central nervous system (CNS) disorders. In particular, we outline recent genetic and technological developments allowing for in vivo examinations, high-throughput screening and whole-brain analyses in larval and adult zebrafish. We also summarize the application of these molecular techniques to the understanding of neuropsychiatric disease, outlining the potential of zebrafish for modeling complex brain disorders, including attention-deficit/hyperactivity disorder (ADHD), aggression, post-traumatic stress and substance abuse. Critically evaluating the advantages and limitations of larval and adult fish tests, we suggest that zebrafish models become a rapidly emerging new field in modern molecular psychiatry research.
Collapse
Affiliation(s)
- Adam Michael Stewart
- ZENEREI Institute, 309 Palmer Court, Slidell, LA 70458, USA
- International Zebrafish Neuroscience Research Consortium (ZNRC), 309 Palmer Court, Slidell, LA 70458, USA
| | - Jeremy F.P. Ullmann
- International Zebrafish Neuroscience Research Consortium (ZNRC), 309 Palmer Court, Slidell, LA 70458, USA
- Centre for Advanced Imaging, University of Queensland, Brisbane, Queensland 4072, Australia
| | - William H.J. Norton
- International Zebrafish Neuroscience Research Consortium (ZNRC), 309 Palmer Court, Slidell, LA 70458, USA
- Department of Biology, College of Medicine, Biological Sciences and Psychiatry, University of Leicester, University Road, Leicester LE1 7RH, UK
| | - Caroline H. Brennan
- School of Biological and Chemical Sciences, Queen Mary University of London, Mile End Road, London, E1-4NS, UK
| | - Matthew O. Parker
- School of Biological and Chemical Sciences, Queen Mary University of London, Mile End Road, London, E1-4NS, UK
| | - Robert Gerlai
- Department of Psychology, University of Toronto at Mississauga, 3359 Mississauga Rd N Mississauga, Ontario L5L1C6, Canada
| | - Allan V. Kalueff
- ZENEREI Institute, 309 Palmer Court, Slidell, LA 70458, USA
- International Zebrafish Neuroscience Research Consortium (ZNRC), 309 Palmer Court, Slidell, LA 70458, USA
- Research Institute for Marine Drugs and Nutrition, Guangdong Ocean University, Zhanjiang, Guangdong 524025, China
| |
Collapse
|