Evidence map›Paper›PMID 39096485›Full record

ArticleEpilepsia open2024

Huperzine A suppresses absence seizures in the genetic absence epilepsy rat from Strasbourg (GAERS) model of genetic generalized epilepsy with absence seizures.

Pablo M Casillas-Espinosa, Jennie Garcia-Olivares, Rui Li, Crystal Li, Chungping Yu, Andrea E Formella, Terence J O'Brien

Abstract read
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Article in Epilepsia open, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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2 · The registry

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3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

7 authors.

Pablo M Casillas-EspinosaDepartment of Medicine, The Royal Melbourne Hospital, The University of Melbourne, Parkville, Victoria, Australia.ORCID https://orcid.org/0000-0002-6199-9415
Jennie Garcia-OlivaresSupernus Pharmaceuticals, Inc., Rockville, Maryland, USA.ORCID https://orcid.org/0000-0002-6164-0744
Rui LiDepartment of Neuroscience, School of Translational Medicine,, Monash University, Melbourne, Victoria, Australia.
Crystal LiDepartment of Neuroscience, School of Translational Medicine,, Monash University, Melbourne, Victoria, Australia.
Chungping YuSupernus Pharmaceuticals, Inc., Rockville, Maryland, USA.
Andrea E FormellaSupernus Pharmaceuticals, Inc., Rockville, Maryland, USA.
Terence J O'BrienDepartment of Medicine, The Royal Melbourne Hospital, The University of Melbourne, Parkville, Victoria, Australia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveWe evaluated huperzine A treatment in the Genetic Absence Epilepsy Rat from Strasbourg (GAERS) model of genetic generalized epilepsy (GGE) with absence seizures.

methodsAdult male GAERS (N = 15) were implanted with EEG recording electrodes 10 days before receiving study drug. Each animal received the following six treatments as a single, intraperitoneal dose, 7 days apart (in random order): huperzine A (0.3, 1.0, or 3.0 mg/kg), two periods of vehicle (0.9% NaCl), or ethosuximide (100 mg/kg) as a positive control. Electroencephalograms (EEGs) were acquired for 24 h before and after each treatment and analyzed for seizure activity during the 90-min period immediately post-treatment, including 30-min intervals at 30, 60, and 90 min. Additional analyses evaluated seizure activity over the 24-h post-treatment period using 60-min intervals at 6, 12, and 24 h. The cumulative 24-h periods before and after each administered treatment were also compared.

resultsTwo-way ANOVA showed a treatment difference [F SIGNIFICANCE: Huperzine A potently suppressed absence-like seizures in GAERS, albeit with a shorter duration of action relative to ethosuximide, showing promise for clinical efficacy in GGE. PLAIN LANGUAGE SUMMARY: This study looked at how huperzine A affects seizures in rats with similar abnormal brain activity as seen in humans with absence epilepsy. Rats received different treatments, placebo (i.e., saline solution), huperzine A, and ethosuximide. Ethosuximide is considered a gold standard treatment for absence epilepsy. We recorded brain activity to measure seizures before and after each treatment. We found that huperzine A (3.0 mg/kg) reduced seizures soon after treatment, like ethosuximide. Both treatments appeared safe, causing only mild sleepiness. The study shows that huperzine A could be a good new treatment for a type of absence epilepsy.

Indexed as

AlkaloidsAnticonvulsantsDisease Models, AnimalElectroencephalographyEpilepsy, AbsenceEthosuximideSesquiterpenesAnimalsDose-Response Relationship, DrugEpilepsy, GeneralizedMaleRatsSeizuresAlkaloidsAnticonvulsantsEthosuximidehuperzine ASesquiterpenescrossover studyethosuximideGAERS modelidiopathic generalized epilepsyspike–wave dischargesSPN‐817

Identifiers

PMID39096485
PMCPMC11450589

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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.