Oxidative Stress Vulnerable Neurons is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
This page provides comprehensive information about the cell type. See the content below for detailed information. [1]
Certain neuronal populations are particularly vulnerable to oxidative stress due to their high metabolic rate, specific neurotransmitter systems, and limited antioxidant capacity. This vulnerability is a key factor in many neurodegenerative diseases.
| Factor | Effect |
|---|---|
| High Fe2+ | Fenton reaction → ROS |
| Neuromelanin | Pro-oxidant in SNc |
| Dopamine oxidation | Reactive quinones |
| High Ca2+ influx | Mitochondrial ROS |
| System | Component |
|---|---|
| Enzymatic | SOD, catalase, GPx |
| Non-enzymatic | GSH, vitamin E, C |
| Metal binding | Ferritin, transferrin |
| DNA repair | OGG1, XPA |
| Strategy | Example | Status |
|---|---|---|
| Direct antioxidants | Vitamin E, CoQ10 | Mixed results |
| SOD mimetics | MitoQ | Clinical trials |
| Metal chelation | Deferoxamine | Preclinical |
| Nrf2 activators | Sulforaphane | Clinical trials |
| Mitochondrial antioxidants | MitoTEMPO | Preclinical |
Barnham KJ et al. (2004) Neurodegenerative diseases, oxidative stress and Cu/Zn-SOD. 2004. ↩︎