Sleep · 2015
A new model to study sleep deprivation-induced seizure.
СтатьяПоддержка NIH: внешняя программаНазвание и аннотация: Перевод в очереди
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Lucey Brendan P, Leahy Averi, Rosas Regine, Shaw Paul J
Аннотация
BACKGROUND AND STUDY OBJECTIVES: A relationship between sleep and seizures is well-described in both humans and rodent animal models; however, the mechanism underlying this relationship is unknown. Using Drosophila melanogaster mutants with seizure phenotypes, we demonstrate that seizure activity can be modified by sleep deprivation.
DESIGN: Seizure activity was evaluated in an adult bang-sensitive seizure mutant, stress sensitive B (sesB(9ed4)), and in an adult temperature sensitive seizure mutant seizure (sei(ts1)) under baseline and following 12 h of sleep deprivation. The long-term effect of sleep deprivation on young, immature sesB(9ed4) flies was also assessed.
SETTING: Laboratory.
PARTICIPANTS: Drosophila melanogaster.
INTERVENTIONS: Sleep deprivation.
MEASUREMENTS AND RESULTS: Sleep deprivation increased seizure susceptibility in adult sesB(9ed4)/+ and sei(ts1) mutant flies. Sleep deprivation also increased seizure susceptibility when sesB was disrupted using RNAi. The effect of sleep deprivation on seizure activity was reduced when sesB(9ed4)/+ flies were given the anti-seizure drug, valproic acid. In contrast to adult flies, sleep deprivation during early fly development resulted in chronic seizure susceptibility when sesB(9ed4)/+ became adults.
CONCLUSIONS: These findings show that Drosophila is a model organism for investigating the relationship between sleep and seizure activity.
DESIGN: Seizure activity was evaluated in an adult bang-sensitive seizure mutant, stress sensitive B (sesB(9ed4)), and in an adult temperature sensitive seizure mutant seizure (sei(ts1)) under baseline and following 12 h of sleep deprivation. The long-term effect of sleep deprivation on young, immature sesB(9ed4) flies was also assessed.
SETTING: Laboratory.
PARTICIPANTS: Drosophila melanogaster.
INTERVENTIONS: Sleep deprivation.
MEASUREMENTS AND RESULTS: Sleep deprivation increased seizure susceptibility in adult sesB(9ed4)/+ and sei(ts1) mutant flies. Sleep deprivation also increased seizure susceptibility when sesB was disrupted using RNAi. The effect of sleep deprivation on seizure activity was reduced when sesB(9ed4)/+ flies were given the anti-seizure drug, valproic acid. In contrast to adult flies, sleep deprivation during early fly development resulted in chronic seizure susceptibility when sesB(9ed4)/+ became adults.
CONCLUSIONS: These findings show that Drosophila is a model organism for investigating the relationship between sleep and seizure activity.