Abstract:We used lipopolysaccharide (LPS) to induce cytokine‐mediated inflammation and preterm labor. Dams injected with LPS gave birth on G18.5, one day early. Saline injected dams either gave birth at term (G19.5) or had a c‐section (C‐S) on G18.5. Breathing and cardiac function were then assessed <10 and >60 min. after birth. C‐S preterm and term animals had high survival rates (~94%). LPS preterm animals had low survival rates (43%). Survival corresponded with a fast transition from a low frequency, high tidal volu… Show more
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