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. 2018 May 14;8:7528. doi: 10.1038/s41598-018-25766-1

Table 1.

Neuropathological and behavioural features of the knockout mice.

Mean ± SEM One-way ANOVA using Tukey’s multiple comparisons test
WT dKO sKO WT vs dKO WT vs sKO dKO vs sKO
n = 19 (13 M) n = 9 (5 M) n = 10 (8 M) Mean diff. 95% CI of diff. Adjusted P Value Mean diff. 95% CI of diff. Adjusted P Value Mean diff. 95% CI of diff. Adjusted P Value
Age (m) 18.94 ± 0.40 18.2 ± 0.37 20.15 ± 0.64 0.67 −1.01 to 2.36 0.60 −1.21 −2.84 to 0.42 0.18 −1.89 −3.80 to 0.03 0.05
Weight (g) 40.61 ± 1.51 37.86 ± 1.48 38.16 ± 1.49 2.75 −2.91 to 8.41 0.47 2.46 −3.01 to 7.92 0.52 −0.29 −6.72 to 6.13 0.99
SN Stereology TH + neurons 6211.58 ± 354.59 6265.11 ± 343.33 6736.70 ± 170.81 −53.53 −1284.88 to 1178.82 0.99 −525.10 −1713.96 to 663.72 0.53 −471.60 −1869.74 to 926.57 0.69
Nissl + neurons 8619.95 ± 489.30 9253.89 ± 536.60 9852.1 ± 476.46 −633.94 −2490.71 to 1222.83 0.69 −1232.15 −3024.82 to 560.52 0.23 −598.21 −2706.51 to 1510.09 0.77
Open field Distance travelled (m) 100.04 ± 6.27 95.83 ± 5.66 94.32 ± 6.02 3.04 −19.85 to 25.92 0.94 4.63 −17.46 to 26.71 0.87 1.59 −24.61 to 27.79 0.99
Perimeter time (sec) 1607.20 ± 68.59 1686.72 ± 38.63 1493.79 ± 69.15 −79.46 −324.72 to 165.77 0.71 113.40 −123.35 to 350.18 0.48 192.90 −85.58 to 471.33 0.22
Rotarod Latency to fall (sec) 123.58 ± 8.66 121.58 ± 9.54 139.52 ± 11.14 1.99 −32.87 to 36.85 0.99 −15.94 −49.60 to 17.72 0.49 −17.93 −57.52 to 21.65 0.52
Grip Strength Peak tension (gf) 115.29 ± 5.76 125.56 ± 4.24 109.86 ± 7.73 −10.26 −32.72 to 12.20 0.51 5.44 −16.25 to 27.12 0.81 15.70 −9.81 to 41.20 0.30
Odour Time to find food (sec) 117.58 ± 18.82 107.22 ± 13.63 130.5 ± 27.17 10.36 −64.68 to 85.39 0.94 −12.92 −85.37 to 59.53 0.90 −23.28 −108.48 to 61.92 0.78
Gut motility Food (g/day) 10.66 ± 0.48 9.70 ± 1.30 10.38 ± 0.66 0.96 −1.62 to 3.54 0.64 0.34 −2.15 to 2.83 0.94 −0.62 −3.55 to 2.31 0.86
Faecal pellets (no./day) 124.89 ± 4.38 113.44 ± 7.91 122.60 ± 3.82 11.45 −7.18 to 30.08 0.30 2.30 −15.69 to 20.28 0.95 −9.16 −30.31 to 12.00 0.55
Beam walking test 30 mm Time to transverse (sec) 3.46 ± 0.25 3.71 ± 0.36 3.30 ± 0.21 −0.26 −1.24 to 0.72 0.80 0.16 −0.79 to 1.10 0.92 0.41 −0.70 to 1.52 0.64
slips 0.63 ± 0.19 0.88 ± 0.41 0.20 ± 0.13 −0.26 −1.13 to 0.61 0.75 0.43 −0.41 to 1.27 0.43 0.69 −0.30 to 1.68 0.22
18 mm Time to transverse (sec) 3.40 ± 0.21 3.44 ± 0.28 3.18 ± 0.28 −0.04 −0.93 to 0.85 0.99 0.22 −0.64 to 1.08 0.80 0.26 −0.75 to 1.27 0.81
slips 1.13 ± 0.23 1.39 ± 0.63 0.90 ± 0.35 −0.26 −1.53 to 1.01 0.87 0.23 −1.00 to 1.45 0.89 0.49 −1.00 to 1.93 0.69
12 mm Time to transverse (sec) 6.00 ± 0.60 5.34 ± 1.06 4.19 ± 0.49 0.66 −1.86 to 3.18 0.80 1.82 −0.61 to 4.25 0.17 1.16 −1.70 to 4.02 0.59
slips 2.95 ± 0.55 3.11 ± 2.00 2.45 ± 1.25 −0.16 −4.02 to 3.70 0.99 0.50 −3.23 to 4.22 0.94 0.66 −3.72 to 5.04 0.93
Gait analysis Forelimb stride length (mm) Left 6.90 ± 0.21 7.56 ± 0.14 7.39 ± 0.19 −0.67 −1.41 to 0.07 0.08 −0.50 −1.21 to 0.21 0.21 0.17 −0.67 to 1.01 0.88
Right 6.85 ± 0.21 7.59 ± 0.14 7.45 ± 0.15 −0.73 −1.44 to −0.02 0.04 −0.61 −1.30 to 0.07 0.09 0.12 −0.68 to 0.92 0.93
Hindlimb stride length (cm) Left 6.83 ± 0.20 7.50 ± 0.14 7.23 ± 0.23 −0.67 −1.43 to 0.08 0.09 −0.40 −1.13 to 0.32 0.37 0.27 −0.59 to 1.13 0.72
Right 6.83 ± 0.21 7.52 ± 0.17 7.28 ± 0.19 −0.69 −1.45 to 0.07 0.08 −0.44 −1.17 to 0.30 0.32 0.25 −0.61 to 1.12 0.76
Sway length (cm) Forelimb 1.49 ± 0.04 1.43 ± 0.06 1.42 ± 0.05 0.08 −0.10 to 0.25 0.53 0.07 −0.10 to 0.24 0.58 −0.01 −0.21 to 0.19 1.00
Hindlimb 3.03 ± 0.05 3.03 ± 0.09 2.86 ± 0.08 −0.01 −0.27 to 0.24 0.99 0.16 −0.08 to 0.41 0.25 0.17 −0.11 to 0.46 0.31
Paw overlap (cm) Left 1.35 ± 0.09 1.03 ± 0.12 1.05 ± 0.09 0.33 −0.03 to 0.67 0.07 0.31 −0.03 to 0.65 0.08 −0.02 −0.42 to 0.38 0.99
Right 1.50 ± 0.10 1.34 ± 0.11 1.07 ± 0.11 0.14 −0.26 to 0.55 0.66 0.43 0.04 to 0.82 0.03 0.29 −0.17 to 0.74 0.29