Publications by authors named "K Demin"

Stress plays a key role in mental, neurological, endocrine, and immune disorders. The zebrafish (Danio rerio) is rapidly gaining popularity as s model organism in stress physiology and neuroscience research. Although the leopard (leo) fish are a common outbred zebrafish strain, their behavioral phenotypes and stress responses remain poorly characterized.

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Introduction: Aggression and self-harm disproportionately occur in youths preoccupied with social status tracking. These pathological conditions are linked to a serotonin (5-HT) deficit in the brain. Ablation of 5-HT biosynthesis by tryptophan hydroxylase 2 knockout (TPH2-KO) increases aggression in rodents.

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  • The study examines how chronic exposure to digoxin affects locomotor activity and brain chemistry in zebrafish.
  • Zebrafish were housed in groups and exposed to 2 μM of digoxin for a week, resulting in increased hyperactivity and decreased anxiety in a novel environment test.
  • The findings reveal significant changes in brain monoamine levels, indicating that cardiotonic steroids like digoxin can influence neurotransmission, which might have implications for neuropsychiatric conditions.
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  • * A study on adult zebrafish showed that acute exposure to sulpiride reduced anxiety and had tranquilizing effects while lowering dopamine levels without impacting serotonin or norepinephrine.
  • * These results highlight the complex effects of sulpiride and demonstrate the utility of zebrafish models for testing the behavior and pharmacology of neuroleptics.
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Traumatic brain injury (TBI) is a global medical concern and has a lasting impact on brain activity with high risks of mortality. Current treatments are inadequate for repairing damaged brain cells or correcting cognitive and behavioral disabilities in TBI patients. Mounting evidence links TBI to the activation of the Integrated Stress Response (ISR) signaling in the brain.

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