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Tyrphostins inhibit lipopolysaccharide induced preterm labor in mice
Jane E Mijovic1, Tamas Zakar, Dean B Zaragoza
1Perinatal Research Centre, Department of Obstetrics and Gynecology, University of Alberta, Edmonton, Canada.
Objective:
We tested whether lipopolysaccharide (LPS)-induced murine preterm birth was delayed by tyrphostins (inhibitors of tyrosine kinases).
Study Design:
The tyrphostins, AG126 or AG1288, or the prostaglandin endoperoxide H synthase-2 (PGHS-2) inhibitor, NS-398, were administered 2 h before LPS, with LPS, or 2 h after LPS and their effect on gestational length was measured.
Results:
Only tyrphostins and NS-398 administered 2 h before LPS successfully delayed preterm birth (p < 0.05).
Conclusions:
Both tyrphostins AG126 and AG1288 as well as NS-398 inhibited LPS induced preterm birth to the time of normal birth.