TABLE 2.

SACCULAR/ALVEOLAR SEPTAL THICKNESS IN NEWBORN LUNGS

	Septal wall thickness (μm)
	PN 0	PN 7
Control	4.24 ± 0.12*	3.86 ± 0.08*
Transgenic	5.20 ± 0.29†	5.32 ± 0.28‡

Definition of abbreviation: PN, postnatal day.

Measurement was performed as described in Materials and Methods. Data are presented as mean ± SEM. Four animals were studied in each group.

^*P < 0.05, control PN 0 versus PN 7.

^†P < 0.05, IL-1β transgenic versus control.

^‡P < 0.01, IL-1β transgenic versus control.