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. 2021 Apr 30;11(5):331. doi: 10.3390/membranes11050331

Table 3.

Papp across RAECM-I and RAECM-II with statistical analyses. (a) Papp across RAECM-I and RAECM-II in the absence and presence of EGTA corrected for unstirred layer effects. (b) and (c) Three-way analysis of variances (ANOVA) of Papp across RAECM-I and -II (with or without EGTA). Three factors assigned for three-way ANOVA are as follows: “different solutes”, “wo vs. w EGTA”, and “RACEM-I vs. RAECM-II” with alpha being set at 0.05, where w = with, wo = without, × = interaction between factors, and DF = degree of freedom. Results suggest that there are significant differences between Papp across RAECM-I and those across RAECM-II, significant effects of EGTA treatment on Papp for both RAECM-I and RAECM-II, and Papp for different solutes in each experimental setting are statistically significant (all at p < 0.0001). (c) Summary table of three-way ANOVA for the source of variation, % of variation, p value, p value summary, and significance vs. no significance. SS (sum of square), DF (degree of freedom), MS (mean square).

(a)
Solutes Papp (cm/s) × 10−7
RAECM-I RAECM-II
Untreated EGTA Treated Untreated EGTA Treated
Mean SD n Mean SD n Mean SD n Mean SD n
Formamide 55.039 4.094 6 92.761 12.368 3 68.455 11.572 8 337.655 218.957 6
Acetamide 91.555 12.191 8 110.919 5.068 6 105.353 11.416 9 387.064 92.762 3
Ethylene glycol 58.673 4.131 9 74.994 29.331 6 74.961 7.031 9 153.386 32.461 6
Glycine 4.011 0.269 7 24.168 2.581 4 7.184 0.920 8 358.107 79.375 2
Arabinose 2.641 1.012 9 15.634 4.113 6 1.322 0.398 9 95.249 50.396 6
Mannitol 2.086 0.256 6 23.468 2.542 6 2.297 0.475 9 85.370 17.206 5
Sucrose 0.869 0.141 6 11.156 2.341 5 0.676 0.261 9 37.870 2.705 3
5-Carboxyfluorescein 0.644 0.222 8 6.120 0.361 3 0.556 0.196 6 37.754 4.499 5
Sulforhodamine B 0.466 0.083 6 6.088 0.447 3 0.453 0.200 6 37.672 9.336 5
FITC-4 kDa dextran 0.180 0.067 9 2.541 0.112 3 0.120 0.019 6 9.228 1.707 3
FITC-10 kDa dextran 0.057 0.020 8 1.142 0.130 3 0.026 0.005 9 10.183 1.709 3
(b)
Source of Variation % of Total Variation p Value
different solutes 41.250 <0.0001
wo vs. w EGTA 13.190 <0.0001
RAECM-I vs. RAECM-II 9.550 <0.0001
different solutes × wo vs. w EGTA 10.820 <0.0001
different solutes × RAECM-I vs. RAECM-II 9.542 <0.0001
wo vs. w EGTA × RAECM-I vs. RAECM-II 8.193 <0.0001
different solutes × wo vs. w EGTA × RAECM-I vs. RAECM-II 8.303 <0.0001
(c)
ANOVA Table SS (Type III) DF MS F (DFn, DFd) p Value
different solutes 7.52 × 10−9 10 7.52 × 10−10 F (10, 221) = 56.96 p < 0.0001
wo vs. w EGTA 2.41 × 10−9 1 2.41 × 10−9 F (1, 221) = 182.20 p < 0.0001
RAECM-I vs. RAECM-II 1.74 × 10−9 1 1.74 × 10−9 F (1, 221) = 131.90 p < 0.0001
different solutes × wo vs. w EGTA 1.97 × 10−9 10 1.97 × 10−9 F (10, 221) = 14.94 p < 0.0001
different solutes × RAECM-I vs. RAECM-II 1.74 × 10−9 10 1.74 × 10−10 F (10, 221) = 13.18 p < 0.0001
wo vs. w EGTA × RAECM-I vs. RAECM-II 1.49 × 10−9 1 1.49 × 10−9 F (1, 221) = 113.10 p < 0.0001
different solutes × wo vs. w EGTA × RAECM-I vs. RAECM-II 1.51 × 10−9 10 1.51 × 10−10 F (10, 221) = 11.47 p < 0.0001
Residual 2.92 × 10−9 221 1.32 × 10−11