Cited by 289Genetics and Neurodevelopmental DisordersEpilepsy research and treatmentPharmacological Effects and Toxicity Studies

Audiogenic Seizures Susceptibility in Transgenic Mice with Fragile X Syndrome

Musumeci, Sebastiano A., Bosco, Paolo, Calabrese, Giuseppe, Bakker, Cathy, De Sarro, Giovanni B., Elia, Maurizio, Ferri, Raffaele, Oostra, Ben A.·2000·Epilepsia

Abstract

Purpose To evaluate their susceptibility to audiogenic seizures, five groups of knockout mice with various forms of fragile X genetic involvement [hemizygous males (n = 46), and homozygous (n = 38) and heterozygous females (n = 45), and their normal male (n = 45) and female (n = 52) littermates] were studied. Methods All mouse groups were tested at ages 17, 22, 35, and 45 days. Audiogenic seizure susceptibility was scored, and the analysis of variance was used for the evaluation of the effects of age and genetic condition on seizure severity score (SSS). Results All groups of knockout fragile X mice exhibited SSSs significantly higher than those observed in their wild-type littermates; among knockout mice, hemizygous males and homozygous females showed the highest SSSs. Hemizygous males showed higher SSSs with increasing age, from 17 to 45 days; homozygous females showed a peak at age 22 days, followed by a decrease; finally, heterozygous females had their highest SSSs at age 17 days. Conclusions This study demonstrates that an increased susceptibility to audiogenic seizures is present in fragile X knockout mice at all the ages tested. These results support the validity of this animal model also for epilepsy and seizures in the human fragile X syndrome.

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Crossref · 10.1111/j.1528-1157.2000.tb01499.x

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  • Fmr1 mutant mice are highly susceptible to seizures and exhibit abnormally high cortical network synchrony during juvenile stages.

    “Consistently, Fmr1 mutant mice are highly susceptible to seizures 103 and exhibit abnormally high cortical network synchrony during juvenile stages 104 .”
  • Auditory hypersensitivity is also evident in Fmr1 KO mice, which exhibit increased susceptibility to audiogenic seizures and abnormal auditory startle.

    “Auditory hypersensitivity is also evident in Fmr1 knockout (KO) mice, a mouse model of FXS, which exhibit increased susceptibility to audiogenic seizures (Musumeci et al., 2000) and abnormal auditory startle (Frankland et al., 2004).”

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Authors
Musumeci, S. A., Bosco, P., Calabrese, G., Bakker, C., De Sarro, G. B., Elia, M., Ferri, R., & Oostra, B. A.
Affiliations
  • University of Reggio Calabria (IT)
  • Erasmus University Rotterdam (NL)
Corresponding author
Musumeci, Sebastiano A.
Venue
Epilepsia
Publisher
Wiley
Published
2000-12
Volume
41
Issue
1
Pages
19-23
ISSN
  • 0013-9580 (ISSN-L)
  • 1528-1167
OpenAlex
W1974810696
Cited by
289
References
5
Citations by year
2026: 6 · 2025: 11 · 2024: 6 · 2023: 10 · 2022: 10 · 2021: 10 · 2020: 9 · 2019: 13 · 2018: 5 · 2017: 16 · 2016: 10 · 2015: 9 · 2014: 17 · 2013: 14 · 2012: 14
FWCI
6.80
Type
journal article
Language
en
Open access
closed
Locations
  • Epilepsia (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
  • Health Sciences › Medicine › Psychiatry and Mental health › Epilepsy research and treatment
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Pharmacological Effects and Toxicity Studies
Keywords
audiogenic seizures, fragile X syndrome, seizure susceptibility, animal models of epilepsy, hemizygous males, heterozygous females
MeSH terms
Acoustic Stimulation, Aging, Analysis of Variance, Animals, Female, Fragile X Syndrome, Heterozygote, Homozygote, Mice, Neurologic Mutants, Mice, Transgenic, Mice, Knockout, Genetic Predisposition to Disease, Epilepsy, Reflex, Mice

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