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. 2021 Jan 20;13(2):287. doi: 10.3390/nu13020287

Table 2.

The concentration of selenium, copper, zinc, copper:zinc molar ratio, and total antioxidant status in the serum of patients with Alzheimer’s disease.

Variable Control Group AD Patients p-Value
(n = 60) (n = 110)
Average ± SD
(min–max)
Median (Q1; Q3)
Total Total
M (a) F (b) M (c) F (d)
Se (μg/L) 79.8 ± 22.0 69.1 ± 19.3 <0.05
(44.4–138.4) (18.27–117.62)
73.3 (65.6; 91.6) 71.4 (58.1; 79.7)
71.0 ± 13.9 81.7 ± 23.1 69.5 ± 17.9 68.9 ± 19.8 c vs. d *
(52.4–92.9) (44.4–138.4) (41.7–107.5) (18.3–117.6)
72.6 (58.5; 80.2) 73.3 (66.6; 100.2) 70.6 (52.1; 81.2) 72.3 (58.4; 79.4)
Cu (mg/L) 1.07 ± 0.3 1.03 ± 0.23 ns
(0.68–1.94) (0.64–2.17)
1.02 (0.86; 1.24) 1.01 (0.87; 1.13)
0.96 ± 0.15 1.10 ± 0.30 0.90 ± 0.18 1.07 ± 0.23 c vs. d *
(0.70–1.12) (0.68–1.94) (0.65–1.27) (0.64–2.17)
0.97 (0.86; 1.09) 1.02 (0.85; 1.28) 0.87 (0.76; 1.05) 1.04 (0.96; 1.16)
Zn (mg/L) 0.92 ± 0.23 0.75 ± 0.33 <00000.1
(0.56–1.53) (0.38–3.77)
0.86 (0.75; 1.02) 0.71 (0.62; 0.83)
0.88 ± 0.27 0.92 ± 0.21 0.84 ± 0.61 0.71 ± 0.14 c vs. d *
(0.56–1.47) (0.62–1.53) (0.38–3.77) (0.48–1.12)
0.84 (0.73; 0.93) 0.88 (0.75; 1.03) 0.75 (0.60; 0.90) 0.70 (0.63; 0.81)
Cu:Zn molar ratio 1.24 ± 0.34 1.52 ± 0.47 <0.001
(0.60–2.07) (0.23–3.52)
1.20 (1.01; 1.48) 1.44 (1.26; 1.82)
1.21 ± 0.39 1.25 ± 0.34 1.31 ± 0.48 1.59 ± 0.45 b vs. d *
c vs. d *
(0.60–1.93) (0.70–2.07) (0.23–2.86) (0.81–3.52)
1.23 (1.00; 1.34) 1.16 (1.01; 1.53) 1.33 (0.99; 1.50) 1.58 (1.33; 1.84)
TAS (mmol/L) 1.43 ± 0.67 1.11 ± 0.42 <0.01
(0.63–3.50) (0.27–2.96)
1.31 (0.99; 1.70) 1.10 (0.83; 1.33)
1.88 ± 0.84 1.32 ± 0.59 1.17 ± 0.36 1.09 ± 0.44 a vs. b *
a vs. c *
b vs. d *
(1.06–3.47) (0.63–3.50) (0.45–1.84) (0.27–2.96)
1.69 (1.16; 2.41) 1.26 (0.94; 1.46) 1.23 (0.93; 1.43) 1.09 (0.79; 1.27)

AD—Alzheimer’s disease, SD—standard deviation, Q1—lower quartile, Q3—upper quartile, p—level of significance, ns—no significant, M—male, F—female, a—male from control group, b—female from control group, c—male AD Patients, d—female AD Patients, TAS—total antioxidant status, * p-value < 0.05.