Endothelin-1, interleukin-6, and interleukin-8 levels increase in patients with burns.
Endothelin is produced by injured or ischemic endothelium and causes monocyte production of interleukins-6 and 8 in vitro. Endothelin levels increase in patients with burn injuries, and we asked whether interleukin-6 and 8 levels increased in patients with burn injuries concurrently with endothelin. Fourteen patients with more than 20% body surface area burns were resuscitated to maintain urine output of 0.5 to 1.0 ml/kg/hr. Blood was drawn on admission and at 12, 24, and 48 hours. Endothelin was measured by radioimmunoassay, interleukins-6 and 8 were measured by enzyme-linked immunosorbent assay. Endothelin levels increased to 6.1 +/- 2.3 fmol on admission, 5.7 +/- 2.1 at 12 hours, 6.9 +/- 2.7 at 24 hours, and 6.4 +/- 2.7 at 48 hours (vs 0.5 in healthy controls). Interleukin-6 increased to 243 +/- 220 pg/ml on admission, 276 +/- 198 at 12 hours, 400 +/- 282 at 24 hours, and 379 +/- 274 at 48 hours (vs less than 50 in healthy controls). Interleukin-8 increased to 504 +/- 309 pg/ml on admission, 483 +/- 263 at 12 hours, 575 +/- 306 at 24 hours, and 698 +/- 667 at 48 hours (vs less than 50 in controls). Endothelin-1 and interleukin-6 and 8 levels increase in patients with burn injuries. Endothelin-mediated activation of monocytes that cause cytokine production may have clinical relevance in patients with burn injuries.
Department of Surgery, Yale University, Bridgeport, Connecticut, USA.
M A
MA
McMillen
M
M
Huribal
M E
ME
Cunningham
R J
RJ
Bala
W E
WE
Pleban
M L
ML
D'Aiuto
D000328:Adult; D000368:Aged; D000704:Analysis of Variance; D002056:Burns / Q000378:metabolism* / Q000473:pathology; D019332:Endothelin-1 / Q000032:analysis* / Q000378:metabolism; D006801:Humans; D015601:Injury Severity Score; D015850:Interleukin-6 / Q000032:analysis* / Q000378:metabolism; D016209:Interleukin-8 / Q000032:analysis* / Q000378:metabolism; D008875:Middle Aged; D011379:Prognosis; D011863:Radioimmunoassay; D012680:Sensitivity and Specificity
D019332:Endothelin-1; D015850:Interleukin-6; D016209:Interleukin-8