【摘 要】
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Objective To detect the changes of TXA2 and PGI2 levels and discuss the significance of the level and ratio changes during maxillofacial blast injury.Methods Th
【机 构】
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Stomatology College,Fourth Military Medical University,Xi’an 710032,ChinaSecond Hospital in Mudanjia
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Objective To detect the changes of TXA2 and PGI2 levels and discuss the significance of the level and ratio changes during maxillofacial blast injury.Methods The maxillofacial blast injury model was made by standard spherical blast sources produced by NINT.Measure dynamics of blast wave to skin surface.The metabolites of thromboxane A2( TXA2) and prostacyclin(PGI2),TXB2 and 6 keto PGF1α ,in cortex were examined before and 10min,6h,12h,24h,72h,168h after injury by radioimmunoassay.Results The pressure of central skin of blast injury was 335MPa.TXB2 and 6 keto PGF1 levels and the ratio augmented gradually after injury,and reached the peaks [(216.8± 22.5)pg/g and (102.9± 13.5)pg/g respectively] at the 24th hour,and reduced to the normal levels at the 7th day.Conclusions The blast wave can injure the cortex and vessels,thus TXA2 and PGI2 levels and the ratio increase, which aggravate injury of the cerebral cortex.
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