ArticleEpilepsia open2017
Dissociation of spontaneous seizures and brainstem seizure thresholds in mice exposed to eight flurothyl-induced generalized seizures.
Article in Epilepsia open, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 13 citations in OpenAlex.
- Analysis of Flurothyl-induced Seizures and Epileptogenesis in Mice with Targeted Deletions of Exons 3 and 4 in Dock7.bioRxiv : the preprint server for biology · 2026Article
- The OFrontiers in physiology · 2022Review
- CNS function and dysfunction during exposure to hyperbaric oxygen in operational and clinical settings.Redox biology · 2019Review
- Progress in the molecular mechanisms of genetic epilepsies using patient-induced pluripotent stem cells.Epilepsia open · 2018Review
- Pharmacogenetics of KCNQ channel activation in 2 potassium channelopathy mouse models of epilepsy.Epilepsia · 2018Article
- Multidimensional Genetic Analysis of Repeated Seizures in the Hybrid Mouse Diversity Panel Reveals a Novel Epileptogenesis Susceptibility Locus.G3 (Bethesda, Md.) · 2017Article
- The relevance of inter- and intrastrain differences in mice and rats and their implications for models of seizures and epilepsy.Epilepsy & behavior : E&B · 2017Review
- The Repeated Flurothyl Seizure Model in Mice.Bio-protocol · 2017Article
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2 authors at 1 institution in 1 country.
Funding
Abstract
objectiveC57BL/6J mice exposed to eight flurothyl-induced generalized clonic seizures exhibit a change in seizure phenotype following a 28-day incubation period and subsequent flurothyl rechallenge. Mice now develop a complex seizure semiology originating in the forebrain and propagating into the brainstem seizure network (a forebrain→brainstem seizure). In contrast, this phenotype change does not occur in seizure-sensitive DBA/2J mice. The underlying mechanism(s) was the focus of these studies.
methodsDBA2/J mice were exposed to eight flurothyl-induced seizures (1/day) followed by 24-hour video-electroencephalographic recordings for 28-days. Forebrain and brainstem seizure thresholds were determined in C57BL/6J and DBA/2J mice following one or eight flurothyl-induced seizures, or after eight flurothyl-induced seizures, a 28-day incubation period, and final flurothyl rechallenge.
resultsSimilar to C57BL/6J mice, DBA2/J mice expressed spontaneous seizures. However, unlike C57BL/6J mice, DBA2/J mice continued to have spontaneous seizures without remission. Because DBA2/J mice do not express forebrain→brainstem seizures following flurothyl rechallenge after a 28-day incubation period, this indicated that spontaneous seizures were not sufficient for the evolution of forebrain→brainstem seizures. Therefore, we determined whether brainstem seizure thresholds were changing during this repeated-flurothyl model and whether this could account for the expression of forebrain→brainstem seizures. Brainstem seizure thresholds were not different between C57BL/6J and DBA/2J mice on day one or on the last induction seizure trial (day eight). However, brainstem seizure thresholds did differ significantly on flurothyl rechallenge (day 28) with DBA/2J mice showing no lowering of their brainstem seizure thresholds. SIGNIFICANCE: These results demonstrated that DBA/2J mice exposed to the repeated-flurothyl model develop spontaneous seizures without evidence of seizure remission and provide a new model of epileptogenesis. Moreover, these findings indicated that the transition of forebrain ictal discharge into the brainstem seizure network occurs due to changes in brainstem seizure thresholds that are independent of spontaneous seizure expression.
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