Table 2.
Correlation of native αSyn and 3-nitrotyrosine proteins concentration in the saliva with demographic and clinical parameters in patients with idiopathic Parkinson’s disease.
| Parameters | Native αSyn | 3-Nitrotyrosine Proteins |
|---|---|---|
| Age (years) | 0.192 | 0.027 |
| Body mass index | 0.215 | −0.058 |
| Education (years) | 0.071 | −0.065 |
| Levodopa equivalent dose (mg per day) | 0.166 | −0.209 |
| Disease duration (years) | 0.044 | −0.098 |
| Age at IPD onset (years) | −0.039 | 0.014 |
| Hoehn-Yahr stage | 0.179 | 0.006 |
| Modified Schwab-England | −0.102 | −0.161 |
| MDS-UPDRS part III (on) | 0.048 | −0.107 |
| Total MDS-UPDRS (I-III) (on) | 0.039 | −0.125 |
| MDS-UPDRS part IV | 0.206 | −0.198 |
Mean ± SD. Statistical correlation was carried out with the Pearson´s test. No significant correlations were found. Abbrev.: IPD, idiopathic Parkinson’s disease; αSyn, α-synuclein; NS, no significant; MDS-UPDRS, International Parkinson and Movement Disorder Society-sponsored revision of the Unified Parkinson’s Disease Rating Scale.