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DNA Damage in Major Psychiatric Diseases
Muhammad Ummear Raza1, Turan Tufan1, Yan Wang1
1Department of Biomedical Sciences, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, 37604, USA.
Abstract:
Human cells are exposed to exogenous insults and continuous production of different metabolites. These insults and unwanted metabolic products might interfere with the stability of genomic DNA. Recently, many studies have demonstrated that different psychiatric disorders show substantially high levels of oxidative DNA damage in the brain accompanied with morphological and functional alterations. It reveals that damaged genomic DNA may contribute to the pathophysiology of these mental illnesses. In this article, we review the roles of oxidative damage and reduced antioxidant ability in some vastly studied psychiatric disorders and emphasize the inclusion of treatment options involving DNA repair. In addition, while most currently used antidepressants are based on the manipulation of the neurotransmitter regulation in managing different mental abnormalities, they are able to prevent or reverse neurotoxin-induced DNA damage. Therefore, it may be plausible to target on genomic DNA alterations for psychiatric therapies, which is of pivotal importance for future antipsychiatric drug development.
Insights
Oxidative DNA damage in the brain is linked to psychiatric disorders. Targeting DNA repair mechanisms offers a promising new avenue for developing effective psychiatric therapies.
Area of Science:
- Neuroscience
- Genetics
- Psychiatry
Background:
- Human cells face constant exposure to damaging agents and metabolic byproducts.
- Genomic DNA stability can be compromised by these insults, potentially impacting cellular function.
- Elevated oxidative DNA damage in the brain is observed in psychiatric disorders, correlating with structural and functional changes.
Purpose of the Study:
- To review the involvement of oxidative damage and diminished antioxidant capacity in major psychiatric disorders.
- To highlight the significance of DNA repair in potential therapeutic strategies for mental illnesses.
- To explore the potential of targeting genomic DNA alterations for novel psychiatric treatments.
Main Methods:
- Literature review of studies investigating oxidative stress and DNA damage in psychiatric conditions.
- Analysis of the relationship between DNA damage and the pathophysiology of mental disorders.
- Examination of current antidepressant mechanisms and their impact on neurotoxin-induced DNA damage.
Main Results:
- Psychiatric disorders are associated with significant oxidative DNA damage in the brain.
- Reduced antioxidant defenses exacerbate the effects of DNA damage in these conditions.
- Current antidepressants may offer neuroprotective benefits by mitigating DNA damage.
Conclusions:
- Damaged genomic DNA is implicated in the development and progression of psychiatric disorders.
- Incorporating DNA repair-focused treatments could revolutionize psychiatric care.
- Targeting genomic DNA alterations represents a critical frontier for future antipsychiatric drug discovery.
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