Table 1

Urine concentrations of norsalsolinol, N-methyl-norsalsolinol, and salsolinol

NorsalsolinolN-methyl-norsalsolinolSalsolinol
T1T2T1T2T1T2
*Six patients died during the follow up period.
Data are given as mean (SD) (range) in nmol/ml.
Control subjects (n = 14)0.04 (0.04) (0–0.11)0.04 (0.06) (0–0.13)0.71 (0.84) (0–2.11)0.75 (1.28) (0–3.40)0.08 (0.15) (0–0.45)0.14 (0.17) (0–0.48)
PD patients
    Untreated (n = 3)0.03 (0.04) (0–0.07)0.05 (0.01) (0.03–0.06)0.01 (0.01) (0–0.01)Not detected0.11 (0.10) (0.01–0.20)0.30 (0.16) (0.14–0.46)
    Treated, total (n = 44 at T1, 38 at T2*)0.51 (1.24) (0–5.93)0.18 (0.41) (0–2.18)3.31 (4.87) (0.14–18.27)2.39 (3.94) (0–15.40)1.04 (1.22) (0–6.47)0.69 (1.72) (0–9.16)
Levodopa dosage
    <300 mg/day (n = 15)0.45 (1.16) (0–4.75)1.28 (0.80) (0.42–2.54)0.63 (0.66) (0–2.16)
    300–600 mg/day (n = 24)0.50 (1.30) (0–5.93)4.08 (5.92) (0.14–18.27)1.21 (1.53) (0–6.47)
    >600 mg/day (n = 5)0.55 (0.99) (0–2.31)6.09 (5.41) (2.27–9.92)1.30 (0.68) (0.39–1.92)