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Table 3 Concentrations of selected biomarkers in samples collected with ECoScreen and ECoScreen2

From: Comparative analysis of selected exhaled breath biomarkers obtained with two different temperature-controlled devices

 

ECoScreen

ECoScreen2

NOx

  

Samples > LOQ/total samples

8/16

0/16

concentration (μM)

4.3 (3.3 - 7.1)

 

LTB 4

  

Samples > LOQ/total samples

2/16

12/16

concentration (pg/mL)

n.c.

22.8 (8.9 - 36.7)

PGE 2

  

Samples > LOQ/total samples

0/11

13/15

concentration (pg/mL)

 

202.7 (55.6 - 356.1)

cysLT

  

Samples > LOQ/total samples

0/8

0/9

8-isoPGF

  

Samples > LOQ/total samples

12/12

15/15

concentration (pg/mL)

81.9 (70.2 - 241.5)

464.4 (223.0 - 661.1)

Difference

p < 0.01

  1. NOx, nitrogen oxides; LTB4, leukotriene B4; PGE2, prostaglandin E2; cys-LT, cysteinyl-LT; 8-iso-PGF, 8-isoprostane. n.c., not calculated.