Cerebrospinal fluid levels of alpha-tocopherol (vitamin E) in Parkinson's disease

Abstract

We compared CSF and serum levels, and the CSF/serum ratio of alpha-tocopherol (vitamin E), measured by HPLC, in 34 patients with Parkinson's disease (PD) and 47 controls. CSF and serum vitamin E levels were correlate. The mean CSF and serum vitamin E levels, and the CSF/serum ratio of PD patients did not differ significantly between the groups. There was no influence of antiparkinsonian therapy on CSF vitamin E levels. CSF vitamin E levels did not correlate with age, age at onset, duration of the disease, scores of the Unified Parkinson Disease Rating Scale of the Hoehn and Yahr staging in the PD group. These results suggest that CSF vitamin E concentrations are unrelated with the risk for PD.

Redox status of plasma coenzyme Q10 indicates elevated systemic oxidative stress in Parkinson's disease

“…In the cerebrospinal fluid (CSF) from PD patients, some reports showed normal vitamin E [41] and glutathione [42] levels and increased 8-hydroxyguanosine (8-OHG) [43] and 8-hydroxy-2V -deoxygunanosine (8-OHdG)/8-OHG levels [44]. There is a potential relationship between plasma and CSF in levels of antioxidants and oxidation products.…”

“…There is a potential relationship between plasma and CSF in levels of antioxidants and oxidation products. In fact, Molina et al [41] reported that vitamin E levels in serum were correlated with those in CSF. The redox state of coenzyme Q10 in CSF would also bring valuable information on oxidative stress in the brain of PD patients.…”

Antioxidants in Central Nervous System Diseases: Preclinical Promise and Translational Challenges

“…We have previously argued that α -tocopherol and γ -tocopherol are correlated in healthy subjects so that epidemiological studies associating dietary vitamin E or plasma vitamin E with health benefits may have indexed an unanticipated auto-correlation between the two tocopherol variants [63]. PD brain, plasma and CNS are not depleted in α -tocopherol [42,104] but γ -tocopherol has not been investigated. In light of recent findings described above that γ -tocopherol uniquely protects against an animal model of PD, more epidemiological studies are justified to explore non- α -tocopherol correlations with PD risk.…”

The Promise of Neuroprotective Agents in Parkinson?s Disease

“…There are no differences in the amount of vitamin E in the cerebellum (Dexter et al, 1992) or CSF (Molina et al, 1997) between PD patients and healthy individuals. Clinical trials also show no neuroprotective benefit of taking vitamin E (Fernandez-Calle et al, 1992; LeWitt, 1994; Morens et al, 1996).…”