ArticleAlcoholism, clinical and experimental research2019
Embryonic Ethanol Exposure Affects the Early Development, Migration, and Location of Hypocretin/Orexin Neurons in Zebrafish.
Article in Alcoholism, clinical and experimental research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.
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Who cites it
23 citing papers in PubMed, 30 citations in OpenAlex.
- Melanin-Concentrating Hormone (MCH): Role in Mediating Reward-Motivated and Emotional Behavior and the Behavioral Disturbances Produced by Repeated Exposure to Reward Substances.International journal of molecular sciences · 2025Review
- Varanid Teeth Asymmetry and Correlation to Body Size.Journal of developmental biology · 2025Article
- Emerging medications and pharmacological treatment approaches for substance use disorders.Pharmacology, biochemistry, and behavior · 2025Review
- Drugs of abuse drive neurotransmitter plasticity that alters behavior: implications for mental health.Frontiers in behavioral neuroscience · 2025Review
- Contribution of hypothalamic orexin (hypocretin) circuits to pathologies of motivation.British journal of pharmacology · 2024Review
- Neurological Disorders Induced by Drug Use: Effects of Adolescent and Embryonic Drug Exposure on Behavioral Neurodevelopment.International journal of molecular sciences · 2024Review
- Embryonic ethanol exposure and optogenetic activation of hypocretin neurons stimulate similar behaviors early in life associated with later alcohol consumption.Scientific reports · 2024Article
- Review
- Subpopulations of hypocretin/orexin neurons differ in measures of their cell proliferation, dynorphin co-expression, projections, and response to embryonic ethanol exposure.Scientific reports · 2023Article
- Article
- Neuronal chemokine concentration gradients mediate effects of embryonic ethanol exposure on ectopic hypocretin/orexin neurons and behavior in zebrafish.Scientific reports · 2023Article
- Orexin Reserve: A Mechanistic Framework for the Role of Orexins (Hypocretins) in Addiction.Biological psychiatry · 2022Review
- Embryonic ethanol exposure induces ectopic Hcrt and MCH neurons outside hypothalamus in rats and zebrafish: Role in ethanol-induced behavioural disturbances.Addiction biology · 2022Article
- Role of Brain Modulators in Neurodevelopment: Focus on Autism Spectrum Disorder and Associated Comorbidities.Pharmaceuticals (Basel, Switzerland) · 2022Review
- Orexin/Hypocretin System Dysfunction in ESSENCE (Early Symptomatic Syndromes Eliciting Neurodevelopmental Clinical Examinations).Neuropsychiatric disease and treatment · 2022Article
- New directions in modelling dysregulated reward seeking for food and drugs.Neuroscience and biobehavioral reviews · 2022Review
- Sleep dysregulation in binge eating disorder and "food addiction": the orexin (hypocretin) system as a potential neurobiological link.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2021Review
- Zebrafish models of fetal alcohol spectrum disorders.Genesis (New York, N.Y. : 2000) · 2021Review
- Sexually dimorphic and asymmetric effects of embryonic ethanol exposure on hypocretin/orexin neurons as related to behavioral changes in zebrafish.Scientific reports · 2021Article
- The orexin (hypocretin) neuropeptide system is a target for novel therapeutics to treat cocaine use disorder with alcohol coabuse.Neuropharmacology · 2021Review
Corrections and comments
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
Abstract
backgroundEmbryonic ethanol (EtOH) exposure is known to increase alcohol drinking later in life and have long-term effects on neurochemical systems in the brain. With zebrafish having marked advantages for elucidating neural mechanisms underlying brain disorders, we recently tested and showed in these fish, similar to rodents, that low-dose embryonic EtOH stimulates voluntary consumption of EtOH while increasing expression of hypocretin/orexin (hcrt) neurons, a neuropeptide that promotes consummatory and reward-related behaviors. The goal of the present study was to characterize how embryonic EtOH affects early development of the hcrt system and produces persistent changes at older ages that may contribute to this increase in EtOH consumption.
methodsWe utilized live imaging and Imaris software to investigate how low-dose embryonic EtOH (0.5%), administered from 22 to 24 hours postfertilization, affects specific properties of hcrt neurons in hcrt:EGFP transgenic zebrafish at different ages.
resultsTime-lapse imaging from 24 to 28 hpf showed that embryonic EtOH increased the number of hcrt neurons, reduced the speed, straightness, and displacement of their migratory paths, and altered their direction early in development. At older ages up to 6 dpf, the embryonic EtOH-induced increase in hcrt neurons was persistent, and the neurons became more widely dispersed. These effects of embryonic EtOH were found to be asymmetric, occurring predominantly on the left side of the brain, and at 6 dpf, they resulted in marked changes in the anatomical location of the hcrt neurons, with some detected outside their normal position in the anterior hypothalamus again primarily on the left side.
conclusionsOur findings demonstrate that low-dose embryonic EtOH has diverse, persistent, and asymmetric effects on the early development of hypothalamic hcrt neurons, which lead to abnormalities in their ultimate location that may contribute to behavioral disturbances, including an increase in EtOH consumption.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.