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Table 1 The results of maximum inhibition of strip contraction calculated by a log-logistic model which represents diffusion

From: Development of an in vitro model to measure bioactivity of botulinum neurotoxin A in rat bladder muscle strips

BoNT-A (nM)

run

Imax

CI

m

CI

b

CI

R2

0.3

1a

0.42

0.37-0.47

2.33

2.22-2.44

6.44

5.33-7.54

0.99

0.3

2a

0.62

0.46-0.77

1.49

1.18-1.80

3.35

1.90-4.79

0.99

0.3

4a

1.00

0.66-1.33

1.80

1.31-2.28

3.23

1.55-4.90

0.99

0.2

3a

0.99

0.61-1.37

2.08

1.33-2.82

2.44

1.54-3.33

0.99

0.2

4b

0.82

min 0.02- 1.65

2.43

min 0.36-5.22

1.83

0.59-3.08

0.99

0.2

5a

1.00

min 0.25-2.25

3.26

0.51-6.01

2.96

0.89-5.03

0.98

0.03

5b

0.06

0.05-0.08

1.19

0.87-1.50

4.45

min 0.42-9.31

0.96

0.03

6a

0.83

min 8.04-9.71

7.51

min 49.76-64.79

2.02

min 1.25-5.30

0.89

0

1b

0.02

min 17.7-17.7

0.52

min 3304-3305

0.32

min 420-420

0

2b

0.16

0.03-0.29

0.24

min 1.38-1.87

1.83

min 18.0-21.7

0.35

0

3b

0.01

min 19.4-19.4

2.70

min 2067-2067

3.01

min 978-985

  1. The data with 95% confidence interval (CI) of calculated maximum of inhibition (Imax), mid inhibition time in hours (m), shape parameter of the curve (b), predictive accuracy of the model (R2) of various BoNT-A concentrations during run 1 to 6. R2 could not be calculated for 0 nM during run 1b and run 3b.