Objective: To investigate the expression of heme oxygenase-1 (HO-1) and leukemia inhibitory factor (LIF) in maternal plasma and placental tissue in intrauterine infection-induced preterm birth.
Study Design: Using a mouse model of intrauterine infection in preterm birth, we used magnetic beads to extract normal pregnant mouse spleen Treg cells, injecting them into lipopolysaccharide (LPS)-treated pregnant mice. The subjects were divided into 4 groups: control group, LPS group, LPS+PBS group, and LPS+Treg group.