PMID: 8951535Nov 1, 1996Paper

The 1996 Moyer Award. Effects of endotoxin on the Th1/Th2 response in humans

The Journal of Burn Care & Rehabilitation
S ZimmerD N Herndon

Abstract

Monocyte/T-cell interactions play a critical role in the systemic response to infection. Distinct patterns of cytokines are produced by two different types of T-helper cells (Th). Th1 cells secrete interleukin-2 (IL-2) and interferon-gamma (IFN-gamma), whereas Th2 cells produce IL-4, IL-5, IL-6, IL-10, and IL-13. In volunteers systemic endotoxin administration initiates many features of gram-negative sepsis including cytokine release, but the patterns (i.e., Th1/Th2 patterns) have not yet been studied. In this institutional review board-approved study we investigated the effect of an intravenous bolus of endotoxin from Escherichia coli (4 ng/kg body weight) on the Th1/Th2 response in four female and four male volunteers (mean age 27.1 +/- 0.8 years). Plasma cytokine levels for IL-2, IL-4, IL-10, IL-12, and IFN-gamma and heart rate, mean arterial pressure, temperature, white blood cell, and differential blood count were determined before and hourly for 5 hours after endotoxin administration. All volunteers had tachycardia, decreased mean arterial pressure, fever, and leukocytosis. IL-10 was significantly (p < 0.05) elevated (9.4 +/- 3.9 pg/ml vs 60.9 +/- 19.3 pg/ml) 3 hours after endotoxin was administered, whereas IL-2 levels w...Continue Reading

Citations

Apr 4, 2000·European Journal of Internal Medicine·J W FijenJ E Tulleken
Apr 30, 2003·Journal of Interferon & Cytokine Research : the Official Journal of the International Society for Interferon and Cytokine Research·A-K LichtE Faist
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