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Table 2 Validation of FCS results

From: In vitro detection of adrenocorticotropic hormone levels by fluorescence correlation spectroscopy immunoassay for mathematical modeling of glucocorticoid-mediated feedback mechanisms

Time (min)

ACTH (FCS)

ACTH (ELISA)

 

% changea

% dev

% change to FCS

% dev

Basal

0

0.00

±1.28

−3.39

±2.91

1320

+7.48

± 1.29

−1.86

±2.16

+10 nM CRH

1

+4.79

±1.82

−0.91

±3.11

5

+8.08

±1.39

−1.16

±3.35

15

+8.62

±1.36

+2.77

±3.29

30

+9.51

±1.43

+4.05

±2.96

60

+11.18

±1.62

+4.61

±2.12

120

+15.50

±1.86

+2.97

±2.27

1320

+24.74

±2.32

+2.63

±2.31

+10 nM CRH + 100 nM cortisol

1

+1.16

±2.03

−3.77

±3.58

5

+2.08

±2.88

−3.68

±4.12

15

+3.02

±2.85

−2.97

±3.38

30

+4.94

±1.75

−1.80

±2.44

60

+6.80

±1.63

−0.81

±3.01

120

+9.40

±2.31

+1.52

±2.33

1320

+12.23

±2.07

+3.10

±2.41

  1. Validation of FCS results by ELISA measurements. The % difference in ACTH concentrations obtained from ELISA measurements refers to the FCS dataset of the same sample (in the same row in the table).
  2. aThe temporal % change of ACTH concentration to the basal ACTH-level of 13.9709 nM (mean value) detected by FCS. Deviations calculated by the t-test distribution, α = 0.1.