PMID- 15513316 OWN - NLM STAT- MEDLINE DCOM- 20050317 LR - 20071115 IS - 1401-7431 (Print) IS - 1401-7431 (Linking) VI - 38 IP - 5 DP - 2004 Oct TI - Tumor necrosis factor gene polymorphisms and inflammatory response in coronary artery bypass grafting patients. PG - 312-7 AB - BACKGROUND: Tumor necrosis factor-alpha (TNF-alpha), a key factor in the inflammatory cascade, has been implicated in coronary artery disease. Two biallelic polymorphisms in the TNF gene locus (TNFA at position -308 and TNFB at +252) may influence TNF-alpha production. Individuals with the rare TNFA2 allele or TNFB2 homozygosity have augmented TNF-alpha production. We investigated the genotypes associated with increased TNF-alpha production in coronary artery bypass grafting (CABG) patients and if these genotypes influence the magnitude of the postoperative inflammatory response. METHODS: TNF gene polymorphisms were analyzed by multiplex fluorescent solid-phase minisequencing in 86 CABG patients. Plasma concentrations of TNF-alpha, IL-6 and C3a and C-reactive protein (CRP) were analyzed before and after surgery in 45 of the patients and compared with genetically high and low TNF-alpha producers. RESULTS: Thirty percent of the patients carried the TNFA2 allele and 45% were TNFB2 homozygous. The allelic frequencies were TNFA1/TNFA2 = 0.84/0.16 and TNFB1/TNFB2 = 0.32/0.68. Pre- and postoperative levels of TNF-alpha, IL-6, C3a and CRP did not differ significantly between genetically high and low TNF-alpha producers. CONCLUSIONS: The frequency of high TNF-alpha producing genotypes in a CABG population was comparable to that previously reported from normal populations. Furthermore, we found no evidence that the investigated TNF-alpha gene polymorphisms influence postoperative inflammatory response after uncomplicated coronary surgery. FAU - Westerberg, Martin AU - Westerberg M AD - Department of Cardiothoracic Surgery, Sahlgrenska University Hospital, Gothenburg, Sweden. martin.westerberg@hjl.gu FAU - Bengtsson, Anders AU - Bengtsson A FAU - Ricksten, Anne AU - Ricksten A FAU - Jeppsson, Anders AU - Jeppsson A LA - eng PT - Comparative Study PT - Corrected and Republished Article PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Scand Cardiovasc J JT - Scandinavian cardiovascular journal : SCJ JID - 9708377 RN - 0 (Tumor Necrosis Factor-alpha) SB - IM CRF - Scand Cardiovasc J. 2004 Jun;38(3):172-7. PMID: 15223716 MH - Aged MH - Alleles MH - *Coronary Artery Bypass MH - Coronary Artery Disease/*genetics/surgery MH - Female MH - Humans MH - Inflammation/*genetics MH - Male MH - Middle Aged MH - *Polymorphism, Genetic MH - Risk Factors MH - Tumor Necrosis Factor-alpha/*genetics EDAT- 2004/10/30 09:00 MHDA- 2005/03/18 09:00 CRDT- 2004/10/30 09:00 PHST- 2004/10/30 09:00 [pubmed] PHST- 2005/03/18 09:00 [medline] PHST- 2004/10/30 09:00 [entrez] AID - X3TTATA2VRDFEUVU [pii] AID - 10.1080/14017430410031795 [doi] PST - ppublish SO - Scand Cardiovasc J. 2004 Oct;38(5):312-7. doi: 10.1080/14017430410031795.