Cited by 22Genetics and Neurodevelopmental DisordersPsychedelics and Drug StudiesAutism Spectrum Disorder Research

Psilocybin mitigates the cognitive deficits observed in a rat model of Fragile X syndrome

Buzzelli, Valeria, Carbone, Emilia, Manduca, Antonia, Schiavi, Sara, Feo, Alessandro, Perederiy, Julia V., Ambert, Kyle H., Hausman, Marvin +1 more·2023·Psychopharmacology

Abstract

Rationale Fragile X syndrome (FXS) is the most common form of inherited intellectual disability (ID) and the leading monogenic cause of autism spectrum disorder (ASD). Serotonergic neurotransmission has a key role in the modulation of neuronal activity during development, and therefore, it has been hypothesized to be involved in ASD and co-occurring conditions including FXS. As serotonin is involved in synaptic remodeling and maturation, serotonergic insufficiency during childhood may have a compounding effect on brain patterning in neurodevelopmental disorders, manifesting as behavioral and emotional symptoms. Thus, compounds that stimulate serotonergic signaling such as psilocybin may offer promise as effective early interventions for developmental disorders such as ASD and FXS.Objectives The aim of the present study was to test whether different protocols of psilocybin administration mitigate cognitive deficits displayed by the recently validated Fmr1-Δ exon 8 rat model of ASD, which is also a model of FXS.Results Our results revealed that systemic and oral administration of psilocybin microdoses normalizes the aberrant cognitive performance displayed by adolescent Fmr1-Δ exon 8 rats in the short-term version of the novel object recognition test-a measure of exploratory behavior, perception, and recognition.Conclusions These data support the hypothesis that serotonin-modulating drugs such as psilocybin may be useful to ameliorate ASD-related cognitive deficits. Overall, this study provides evidence of the beneficial effects of different schedules of psilocybin treatment in mitigating the short-term cognitive deficit observed in a rat model of FXS.

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Crossref · 10.1007/s00213-022-06286-3

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Authors
Buzzelli, V., Carbone, E., Manduca, A., Schiavi, S., Feo, A., Perederiy, J. V., Ambert, K. H., Hausman, M., & Trezza, V.
Affiliations
Roma Tre University (IT)
Corresponding author
Trezza, Viviana
Venue
Psychopharmacology
Published
2022-12-05
Volume
240
Issue
1
Pages
137-147
ISSN
  • 0033-3158 (ISSN-L)
  • 1432-2072
OpenAlex
W4310700160
Cited by
22
References
82
Citations by year
2026: 6 · 2025: 1 · 2024: 7 · 2023: 8
FWCI
2.41
Type
journal article
Language
en
Open access
closed
Locations
  • Psychopharmacology (publishedVersion)
  • PubMed (publishedVersion)
  • IRIS Research product catalog (Sapienza University of Rome) (submittedVersion)
  • Iris (Roma Tre University) (submittedVersion)
Funders
  • Ministero dell’Istruzione, dell’Università e della Ricerca (2017SXEXT5)
  • Regione Lazio (“Gruppi di ricerca 2020” grant # PROT. A0375-2020-36550)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
  • Social Sciences › Psychology › Clinical Psychology › Psychedelics and Drug Studies
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
Keywords
psilocybin, fragile X syndrome, autism spectrum disorder, cognitive impairment, novel object recognition, serotonergic neurotransmission, microdosing, treatment schedule, intellectual disability, neurodevelopmental disorders
MeSH terms
Autism Spectrum Disorder, Animals, Cognition, Fragile X Syndrome, Psilocybin, Serotonin, Rats, Fragile X Mental Retardation Protein, Fragile X Messenger Ribonucleoprotein 1

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