PMID- 7919140 OWN - NLM STAT- MEDLINE DCOM- 19941028 LR - 20210518 IS - 1046-6673 (Print) IS - 1046-6673 (Linking) VI - 4 IP - 11 DP - 1994 May TI - The effect of uremia on tumor necrosis factor-alpha release after an in vitro whole-blood endotoxin challenge. PG - 1890-5 AB - Uremia has been associated with immunologic aberrations, including anergy, increased susceptibility to infections, and reduced phagocytic activity of polymorphonuclear leukocytes. In this study, cytokine release in uremic and nonuremic blood after in vitro endotoxin stimulation was studied. Blood from nonuremic controls, chronic renal failure patients not on dialysis, and chronic hemodialysis patients predialysis and postdialysis was spiked with 10 ng/mL of Escherichia coli endotoxin and incubated for 2 and 26 h. Plasma tumor necrosis factor-alpha (TNF alpha) concentrations were determined by ELISA after each incubation period. To further study which uremic blood component may be responsible for enhanced release of TNF alpha, plasma and cellular components of chronic renal failure patients and controls were switched and then given an in vitro endotoxin stimulation (1 ng/mL). It was found that (1) TNF alpha release is enhanced by uremia and is exacerbated with progressive declines in renal function, (2) enhanced TNF alpha release is related to a blood cellular phenomenon induced by uremia, and (3) enhanced TNF alpha release in hemodialysis patients is associated with a prolonged stimulation and/or reduced plasma elimination of TNF alpha. FAU - Oettinger, C W AU - Oettinger CW AD - Emory University School of Medicine, Atlanta, GA. FAU - Bland, L A AU - Bland LA FAU - Oliver, J C AU - Oliver JC FAU - Arduino, M J AU - Arduino MJ FAU - McAllister, S K AU - McAllister SK FAU - Favero, M S AU - Favero MS LA - eng PT - Journal Article PL - United States TA - J Am Soc Nephrol JT - Journal of the American Society of Nephrology : JASN JID - 9013836 RN - 0 (Endotoxins) RN - 0 (Tumor Necrosis Factor-alpha) SB - IM MH - Blood Cells/immunology MH - Endotoxins/*toxicity MH - Humans MH - In Vitro Techniques MH - Models, Biological MH - Plasma/immunology MH - Renal Dialysis MH - Tumor Necrosis Factor-alpha/*metabolism MH - Uremia/blood/*immunology/therapy EDAT- 1994/05/01 00:00 MHDA- 1994/05/01 00:01 CRDT- 1994/05/01 00:00 PHST- 1994/05/01 00:00 [pubmed] PHST- 1994/05/01 00:01 [medline] PHST- 1994/05/01 00:00 [entrez] AID - 10.1681/ASN.V4111890 [doi] PST - ppublish SO - J Am Soc Nephrol. 1994 May;4(11):1890-5. doi: 10.1681/ASN.V4111890.