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The role of oxidative stress in Rett syndrome: an overview
Claudio De Felice1, Cinzia Signorini, Silvia Leoncini
1Neonatal Intensive Care Unit University Hospital, Azienda Ospedaliera Universitaria Senese of Siena, Siena, Italy. geniente@gmail.com
Abstract:
The main cause of Rett syndrome (RTT), a pervasive development disorder almost exclusively affecting females, is a mutation in the methyl-CpG binding protein 2 (MeCP2) gene. To date, no cure for RTT exists, although disease reversibility has been demonstrated in animal models. Emerging evidence from our and other laboratories indicates a potential role of oxidative stress (OS) in RTT. This review examines the current state of the knowledge on the role of OS in explaining the natural history, genotype-phenotype correlation, and clinical heterogeneity of the human disease. Biochemical evidence of OS appears to be related to neurological symptom severity, mutation type, and clinical presentation. These findings pave the way for potential new genetic downstream therapeutic strategies aimed at improving patient quality of life. Further efforts in the near future are needed for investigating the yet unexplored "black box" between the MeCP2 gene mutation and subsequent OS derangement.
Insights
Rett syndrome, caused by MeCP2 gene mutations, may involve oxidative stress. Research suggests this stress links to symptom severity, offering potential new therapeutic targets for this rare neurological disorder.
Area of Science:
- Neuroscience
- Genetics
- Biochemistry
Background:
- Rett syndrome (RTT) is a rare neurodevelopmental disorder primarily affecting females, caused by mutations in the methyl-CpG binding protein 2 (MeCP2) gene.
- Currently, no cure exists for RTT, but animal models show disease reversibility, prompting research into underlying mechanisms.
Purpose of the Study:
- To review the current understanding of oxidative stress (OS) in Rett syndrome.
- To explore the relationship between OS and the natural history, genotype-phenotype correlations, and clinical heterogeneity of RTT.
Main Methods:
- Literature review of existing research on RTT, MeCP2 gene mutations, and oxidative stress.
- Analysis of biochemical evidence linking OS to clinical manifestations in RTT patients.
Main Results:
- Emerging evidence suggests a significant role for OS in RTT pathogenesis.
- Biochemical markers of OS correlate with neurological symptom severity, specific mutation types, and overall clinical presentation.
Conclusions:
- Oxidative stress is a key factor in RTT, influencing its diverse clinical features.
- Understanding the link between MeCP2 mutations and OS could lead to novel therapeutic strategies targeting OS pathways to improve patient outcomes.
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