期刊
AMERICAN JOURNAL OF OBSTETRICS AND GYNECOLOGY
卷 204, 期 4, 页码 -出版社
MOSBY-ELSEVIER
DOI: 10.1016/j.ajog.2010.11.006
关键词
chemokines; cytokines; fetal brain damage; GRO-KC; magnesium sulfate; maternal infection; MCP-1; neuroprotection; preterm labor
资金
- Oxenhorn Family
- Feinstein Institute for Medical Research
OBJECTIVE: Magnesium sulfate is proposed to have neuroprotective effects in the offspring. We examined the effects of maternal magnesium sulfate administration on maternal and fetal inflammatory responses in a rat model of maternal infection. STUDY DESIGN: Pregnant rats were injected with saline, Gram-negative bacterial endotoxin lipopolysaccharide or lipopolysaccharide with magnesium sulfate (pre- and/or after lipopolysaccharide) to mimic infection. Maternal blood, amniotic fluid, fetal blood, and fetal brains were collected 4 hours after lipopolysaccharide and assayed for tumor necrosis factor, interleukin-6, monocyte chemoattractant protein-1, and growth-related oncogene-KC. In addition, the effect of magnesium sulfate on cytokine production by an astrocytoma cell line was assessed. RESULTS: Lipopolysaccharide administration induced tumor necrosis factor, interleukin-6, monocyte chemoattractant protein-1, and growth-related oncogene-KC expression in maternal and fetal compartments. Maternal magnesium sulfate treatment significantly attenuated lipopolysaccharide-induced multiple proinflammatory mediator levels in maternal and fetal compartments. CONCLUSION: Antenatal magnesium sulfate administration significantly ameliorated maternal, fetal, and gestational tissue-associated inflammatory responses in an experimental model of maternal infection.
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