PMID- 19557603 OWN - NLM STAT- MEDLINE DCOM- 20090811 LR - 20090626 IS - 0955-3002 (Print) IS - 0955-3002 (Linking) VI - 85 IP - 7 DP - 2009 Jul TI - Static magnetic field attenuates mortality rate of mice by increasing the production of IL-1 receptor antagonist. PG - 633-40 LID - 10.1080/09553000902993908 [doi] AB - PURPOSES: Disseminated intravascular coagulation (DIC) is a complex systemic thrombohemorrhagic disorder involving intravascular coagulation and hemorrhage. The aim of this study is to test whether static magnetic field (SMF) is effective in attenuating lipopolysaccharide (LPS)-induced DIC. MATERIALS AND METHODS: In vivo experiments were performed in this study using male BALB/cByJ mice. An intraperitoneal injection of 50 mg/kg LPS was shown to lead to approximately 50% mortality and this dose was used in subsequent experiments. To test the effects of SMF on the survival rate of LPS-induced animals, the mice were exposed to 0.25-T SMF for 2 h before LPS injection. In addition, the effect of a 2-h SMF treatment on the production of anti-inflammatory cytokines was evaluated. RESULTS: In the first set of experiments, we found that the survival rate was higher in the SMF-exposed group than in the sham-exposed group. The circulating platelet (PLT) counts in the SMF-exposed mice were significantly higher than in the unexposed animals. However, no significant changes in inflammatory cytokine, including tumour necrosis factor-alpha (TNF-alpha), interleukin-1alpha (IL-1alpha), interleukin-6 (IL-6) and monocyte chemotactic protein 1 (MCP-1), in plasma were found after SMF treatment. The results from the second experiment showed that the plasma levels of interleukin-1 receptor antagonist (IL-1ra) were higher in the SMF-exposed group than in the sham group. CONCLUSIONS: Exposure to an SMF increases the plasma levels of IL-1ra. This effect may inhibit the reduction in PLT in plasma, resulting in prevention in LPS induced DIC. FAU - Lin, Shu-Li AU - Lin SL AD - Dental Department, Cathay General Hospital, Taipei, Taiwan. FAU - Chang, Wei-Jen AU - Chang WJ FAU - Lin, Yung-Sheng AU - Lin YS FAU - Ou, Keng-Liang AU - Ou KL FAU - Lin, Che-Tong AU - Lin CT FAU - Lin, Chih-Ping AU - Lin CP FAU - Huang, Haw-Ming AU - Huang HM LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Int J Radiat Biol JT - International journal of radiation biology JID - 8809243 RN - 0 (Interleukin 1 Receptor Antagonist Protein) RN - 0 (Lipopolysaccharides) SB - IM MH - Animals MH - Disseminated Intravascular Coagulation/*mortality MH - Interleukin 1 Receptor Antagonist Protein/*biosynthesis MH - Lipopolysaccharides/toxicity MH - *Magnetics MH - Male MH - Mice MH - Mice, Inbred BALB C MH - Platelet Count EDAT- 2009/06/27 09:00 MHDA- 2009/08/12 09:00 CRDT- 2009/06/27 09:00 PHST- 2009/06/27 09:00 [entrez] PHST- 2009/06/27 09:00 [pubmed] PHST- 2009/08/12 09:00 [medline] AID - 912685984 [pii] AID - 10.1080/09553000902993908 [doi] PST - ppublish SO - Int J Radiat Biol. 2009 Jul;85(7):633-40. doi: 10.1080/09553000902993908.