LI ZHI-LIANG, ZHAO TING-BAO, LIU HONG-HUA. Combination of hyperthermia and LPS may advance and augment systemic inflammatory response syndrome in rats. [J]. Journal of army medical university, 2007, 29(6): 479-481.
LI ZHI-LIANG, ZHAO TING-BAO, LIU HONG-HUA. Combination of hyperthermia and LPS may advance and augment systemic inflammatory response syndrome in rats. [J]. Journal of army medical university, 2007, 29(6): 479-481.DOI:
Objective To investigate the effects of co-exposure to LPS and heat on plasma tumor necrosis factor-α (TNF-α)
interleukin-6 (IL-6)
malondialdehyde (MDA) and activity of superoxide dismutase (SOD) in rats. Methods Male pathogen-free Wistar rats were randomly assigned to the following groups: saline-injected normothermic control (Group C)
saline-injected heat exposure (Group H)
LPS-injected normothermic control (Group L)
LPS-injected heat exposure (Group HL). Mean arterial pressure (MAP) was continually monitored. Plasma levels of TNF-α
IL-6
MDA and SOD were determined at 0
40
80
120 min. Results The rats in Group HL displayed much lower MAP
higher MDA and lower SOD than the other 3 groups. The rats in Group HL displayed an early rise in plasma TNF-α
IL-6 at 40 min
the peak values of both at 80 min significantly higher than the other three groups at the same time piont. Conclusion Co-exposure to LPS and heat primes the rats to advance and augment systemic inflammatory response syndrome.