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The effect of RU486 (A upper uterus, B lower uterus) on Il1r1 relative mRNA abundance. Dams were treated with vehicle (n = 5 at each time point) or RU486 (n = 4 at each time point). RU486 increases Il1ra mRNA abundance in upper uterus 24 h after administration (*P < 0.05). GD, gestational day.
