8-hydroxyguanosine (8-OHG) is a marker for measuring the rate of oxidative damage to nucleic acids and lipids.The concentration of 8-OHG in CSF in Parkinson's disease (PD) patients is approximately three-fold that in controls. The concentration of 8-OHG in CSF decreased significantly with the duration of disease. However, the concentration of 8-OHG in serum was not significantly altered in PD patients compared to that in controls.

Kv3 channel protein is expressed by parvalbumin (PV)-containing pallidal neurons.Kv3, Channel Containing Protein (567-585) corresponds to amino acids 567 to 585 fragment of the Kv3.1b channel containing protein.

Potassium hexacyanoferrate(III), an electron acceptor, has been used in experiments to determine dopamine hydrochloride.