Inflammatory Cellular Response to Mechanical Ventilation in Elastase-Induced Experimental Emphysema: Role of Preexisting Alveolar Macrophages Infiltration

Table 2

Bronchoalveolar lavage cellularity in SV and MV mice, 14 and 21 days after saline or elastase tracheal instillation.

	D14				D21
	Saline		Elastase		Saline		Elastase
	SV	MV	SV	MV	SV	MV	SV	MV
Cell count, x10^4cell/μL	8.4±8.7	11.5±6.5	8.2±10.6	9.3±8.8	9.1±4.4	11.1±11.3	11.2±4.9	11.3±6.8

Definition of abbreviations: SV: spontaneous ventilation; MV: mechanical ventilation.
Values are expressed as median ± interquartile range; n = 5-9 animals/group.
No significant difference was found between groups. Differential cell count showed a predominance of macrophages (>90% of total cells) in all groups.