title: Soluble interleukin-2 receptor and interleukin-8 plasma levels during and after cardiopulmonary bypass: correlations with creatine kinase and creatine kinase MB.
abstract: In this study, soluble receptor of interleukin-2, interleukin-8, creatine kinase, and creatine kinase MB isoenzyme levels were determined serially before, during, and after cardiopulmonary bypass in blood samples of 24 patients. Interleukin-2 receptor levels were 683+/-80 U/ml in the preoperative period and 640+/-60 U/ml during hypothermia. Subsequently, these levels increased significantly at the end of the procedure (791+/-70 U/ml, P<0.01), remaining elevated 1 h after (882+/-92 U/ml, P<0.001) and reaching peak values 24 h postoperatively (1,752+/-200 U/ml, P<0.001). Preoperative plasma values of interleukin-8 were 230+/-43 pg/ml. Interleukin-8 concentrations were 185+/-25 pg/ml during hypothermia. The peak interleukin-8 levels were observed at the end of cardiopulmonary bypass (754+/-94 pg/ml, P<0.001) and tended to decrease 1 h after the procedure (643+/-76 pg/ml, P<0.001), declining to preoperative values, 24 h postoperatively (273+/-41 pg/ml). Interleukin-2 receptor levels correlated well with creatine kinase levels during the procedure. Furthermore, creatine kinase MB levels were correlated with interleukin-2 receptor values only at the end and 1 h after completion of cardiopulmonary bypass. We concluded that interleukin-8 and Interleukin-2 receptor levels are elevated after cardiopulmonary bypass and may contribute to myocardial injury as reflected by increased levels of creatine kinase and creatine kinase MB and correlations between interleukin-2 receptor and both creatine kinase and creatine kinase MB levels.
authors.affiliation: Department of Biochemistry, Osmangazi University, The Medical School, Eskişehir, Turkey. oalatas@ogu.edu.tr
authors.forename: O
authors.initials: O
authors.lastname: Alataş
authors.forename: O
authors.initials: O
authors.lastname: Colak
authors.forename: B
authors.initials: B
authors.lastname: Büyükkidan
authors.forename: O
authors.initials: O
authors.lastname: Portakal
authors.forename: B
authors.initials: B
authors.lastname: Tanriverdi
mesh_terms: D000328:Adult; D000368:Aged; D015415:Biomarkers / Q000097:blood; D006348:Cardiac Surgical Procedures; D002315:Cardiopulmonary Bypass; D002648:Child; D002675:Child, Preschool; D003402:Creatine Kinase / Q000097:blood*; D052276:Creatine Kinase, BB Form; D005260:Female; D006801:Humans; D007036:Hypothermia, Induced; D016209:Interleukin-8 / Q000097:blood*; D007527:Isoenzymes / Q000097:blood*; D008297:Male; D008875:Middle Aged; D016343:Monitoring, Intraoperative; D011184:Postoperative Period; D015375:Receptors, Interleukin-2 / Q000097:blood*; D013997:Time Factors
chemical_list: D015415:Biomarkers; D016209:Interleukin-8; D007527:Isoenzymes; D015375:Receptors, Interleukin-2; D003402:Creatine Kinase; D052276:Creatine Kinase, BB Form