Research Article

Effects of Descurainia sophia on Oxidative Stress Markers and Thirst Alleviation in Hemodialysis Patients: A Randomized Double-Blinded Placebo-Controlled Cross-Over Clinical Trial

Table 3

The comparison of outcomes between pre- and post-DS or placebo for different study groups and period.

Group I (DS administration followed by placebo)Group II (placebo followed by DS administration)
Study groupsPrePost valueStudy groupsPrePost value

Thirst scoreDS8.5 ± 0.97.5 ± 0.860.004Placebo8.3 ± 0.868.0 ± 0.670.14
Placebo7.9 ± 0.898.1 ± 0.760.57DS8.1 ± 0.986.4 ± 0.54<0.001

Potassium (mEq/L)DS5.59 ± 0.855.54 ± 0.640.670Placebo5.69 ± 0.905.32 ± 0.620.119
Placebo5.50 ± 0.625.51 ± 0.540.920DS5.84 ± 0.895.32 ± 0.610.007

Cholesterol (mg/dl)DS162.37 ± 46.70114.29 ± 31.39<0.001Placebo154.83 ± 49.25123.34 ± 35.090.006
Placebo149.59 ± 38.92137.64 ± 39.030.091DS200.30 ± 102.95108.00 ± 33.760.101

Calcium (mg/dl)DS7.85 ± 0.607.95 ± 0.780.406Placebo8.13 ± 0.608.37 ± 0.700.058
Placebo7.85 ± 0.788.48 ± 0.80<0.001DS8.50 ± 0.008.38 ± 0.85

Triglycerides (mg/dl)DS209.94 ± 129.32117.96 ± 35.21<0.001Placebo193.40 ± 94.88147.37 ± 89.250.059
Placebo187.01 ± 104.85124.81 ± 71.49<0.001DS200.30 ± 102.95108.00 ± 33.76<0.001

NaDS144.78 ± 6.48138.07 ± 3.68<0.001Placebo135.83 ± 4.24134.03 ± 3.630.073
Placebo136.26 ± 2.35137.84 ± 3.01<0.001DS135.67 ± 3.51134.10 ± 3.270.667

OXLDLDS1645.96 ± 690.66882.44 ± 380.83<0.001Placebo1451.03 ± 748.131301.08 ± 875.570.466
Placebo1359.45 ± 683.991071.63 ± 631.660.004DS1170.22 ± 622.63846.17 ± 429.220.021

ANTDS0.80 ± 0.521.47 ± 0.71<0.001Placebo0.79 ± 0.540.62 ± 0.210.087
Placebo1.08 ± 0.770.60 ± 0.20<0.001DS0.99 ± 0.411.68 ± 0.55<0.001

Malondialdehyde (μmol/L)DS1709 ± 720882 ± 380<0.001Placebo1695 ± 743758 ± 295<0.001
Placebo927 ± 351786 ± 3500.009DS851 ± 334846 ± 4290.91

TAC (mmol trolox equiv./L)DS0.77 ± 0.50.91 ± 0.670.003Placebo0.8 ± 0.550.89 ± 0.60.24
Placebo1.07 ± 0.760.96 ± 0.580.32DS1.15 ± 0.80.85 ± 0.50.09

Values are expressed as means ± SD; the drug-placebo group took the drug at first, while the placebo-DS group received a placebo following DS. The paired t-test was used to compare the outcomes change before and after the DS or placebo in each study group. DS, Descurainia sophia.