Cited by 85Genetics and Neurodevelopmental DisordersDown syndrome and intellectual disability researchGenetic Neurodegenerative Diseases

Enhanced markers of oxidative stress, altered antioxidants and NADPH-oxidase activation in brains from fragile X mental retardation 1-deficient mice, a pathological model for fragile X syndrome

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El Bekay, Rajaa, Romero‐Zerbo, Yanina, Decara, Juan, Sanchez‐Salido, Lourdes, Del Arco‐Herrera, Ignacio, Rodríguez‐de Fonseca, Fernando, De Diego‐Otero, Yolanda·2007·European Journal of Neuroscience

Abstract

Fragile X syndrome is the most common form of inherited mental retardation in humans. It originates from the loss of expression of the Fragile X mental retardation 1 (FMR1) gene, which results in the absence of the Fragile X mental retardation protein. However, the biochemical mechanisms involved in the pathological phenotype are mostly unknown. The availability of the FMR1‐knockout mouse model offers an excellent model system in which to study the biochemical alterations related to brain abnormalities in the syndrome. We show for the first time that brains from Fmr1‐knockout mice, a validated model for the syndrome, display higher levels of reactive oxygen species, nicotinamide adenine dinucleotide phosphate (NADPH)‐oxidase activation, lipid peroxidation and protein oxidation than brains from wild‐type mice. Furthermore, the antioxidant system is deficient in Fmr1‐knockout mice, as shown by altered levels of components of the glutathione system. FMR1‐knockout mice lacking Fragile X mental retardation protein were compared with congenic FVB129 wild‐type controls. Our results support the hypothesis that the lack of Fragile X mental retardation protein function leads to a moderate increase of the oxidative stress status in the brain that may contribute to the pathophysiology of the Fragile X syndrome.

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Crossref · 10.1111/j.1460-9568.2007.05939.x

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Authors
El Bekay, R., Romero‐Zerbo, Y., Decara, J., Sanchez‐Salido, L., Del Arco‐Herrera, I., Rodríguez‐de Fonseca, F., & De Diego‐Otero, Y.
Venue
European Journal of Neuroscience
Publisher
Wiley
Published
2007-11-16
Volume
26
Issue
11
Pages
3169-3180
ISSN
  • 0953-816X (ISSN-L)
  • 1460-9568
OpenAlex
W1945197007
Cited by
85
References
86
Citations by year
2026: 1 · 2025: 1 · 2024: 8 · 2023: 2 · 2022: 5 · 2021: 11 · 2020: 5 · 2019: 4 · 2018: 3 · 2017: 6 · 2016: 4 · 2015: 6 · 2014: 7 · 2013: 4 · 2012: 5
FWCI
1.06
Type
journal article
Language
en
Open access
Locations
  • European Journal of Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
  • Repositorio Institucional de la Universidad de Málaga (University of Málaga) (submittedVersion, cc-by)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Down syndrome and intellectual disability research
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Genetic Neurodegenerative Diseases
Keywords
fragile X syndrome, Fmr1 knockout mice, FMRP, oxidative stress, NADPH oxidase, reactive oxygen species, lipid peroxidation, protein oxidation, glutathione system, antioxidant deficiency, brain, intellectual disability
MeSH terms
Age Factors, Animals, Antioxidants, Brain, Disease Models, Animal, Fragile X Syndrome, Hydrogen Peroxide, Macrophages, NADP, Oxidoreductases, Subcellular Fractions, Reactive Oxygen Species, Thiobarbituric Acid Reactive Substances, Mice, Knockout, Oxidative Stress, Protein Carbonylation, Mice, Fragile X Messenger Ribonucleoprotein 1

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