Selective increase in oxidative damage and decrease in antioxidant function during aging in the substantia nigra

Physiological

Data Availability

Period at which this change occurs is not accurately known

Tissue

  • substantia nigra Changes

References

  • Venkateshappa et al. (2012) "Increased oxidative damage and decreased antioxidant function in aging human substantia nigra compared to striatum: implications for Parkinson's disease." Neurochem. Res. 37(2):358-369 (PubMed)
Referencing provided by LibAge

External Links

Description

A significant increase in protein oxidation, loss of mitochondrial complex I activity and increased astrocytic proliferation were observed with increasing age in the substantia nigra. This was attributed to a significant decrease in antioxidant function represented by superoxide dismutase (SOD), glutathione (GSH) peroxidase (GPx) and GSH reductase (GR) and a decreasing trend in total GSH and catalase with increasing age. All these parameters were found to be relatively unaltered in the caudate nucleus.