| TNFR p55 (pg/ml) | TNFR p75 (pg/ml) | Total protein (mg/ml) | |
| In vivo low VT | 99.6 ± 49.8 | 538 ± 94.9 | 0.26 ± 0.14 |
| In vivo high VT | 473* ± 358 | 1520* ± 618 | 3.13* ± 2.12 |
| Ex vivo IPL low VT | 103 ± 33.1 | 748 ± 201 | 0.86 ± 0.45 |
| Ex vivo IPL high VT | 145 ± 31.5 | 801 ± 38.2 | 2.63* ± 0.36 |
| Untreated | 103 ± 62.8 | 582 ± 170 | 0.21 ± 0.11 |
| 20µg LPS it | 98.0 ± 12.6 | 1320† ± 195 | 0.21 ± 0.04 |
Mean ± SD; n = 3–7; *p<0.05 versus low VT; †p<0.05 versus untreated. IPL, isolated perfused lung; LPS it, intratracheal lipopolysaccharide; TNFR, tumour necrosis factor receptor; VT, tidal volume.