Research Article

The Potential Effects of Oxidative Stress-Related Plasma Abnormal Protein Aggregate Levels on Brain Volume and Its Neuropsychiatric Consequences in Parkinson’s Disease

Table. 1

Demographic characteristics of PDN patients, PDCD patients, and control subjects.

Normal controlPDNPDCD value
TotalPDN vs. PDCD

Number241318
Gender (M : F)6 : 187 : 65 : 130.1820.131
Age0.4890.302
Education (years)0.0030.012
UPDRS IN/A0.937
UPDRS IIN/A0.045
UPDRS IIIN/A0.149
UPDRS 176N/A0.089
Modified Hoehn and Yahr stagingN/A0.379
Schwab and England (S&E) scaleN/A0.859
Levodopa equivalent daily doses (mg)N/A0.02

Plasma abnormal protein aggregates levels (pg/mL)
NfL<0.0010.048
T-tau0.0010.350
AB420.0350.085
AB40<0.0010.083
Alpha Synuclein<0.0010.052

Wechsler Adult Intelligence Scale-III (WAIS-III)
Picture completion0.0020.035
Vocabulary<0.0010.005
Digit symbol-coding<0.0010.002
Similarities<0.0010.007
Block design<0.0010.016
Arithmetics<0.001<0.001
Matrix reasoning0.0060.008
Digitspan<0.001<0.001
Information<0.0010.147
Picture arrangement0.0070.203
Comprehension<0.0010.005
Letter-number sequencing0.0370.010

Age and gender data were compared by ANOVA test. Misfolding protein biomarkers were compared by analysis of covariance (ANCOVA) after controlling for age and gender. Wechsler Adult Intelligence Scale-IV was compared by analysis of covariance (ANCOVA) after controlling for age, gender, and education. Data are presented as . .