Fig. 7.
Malondialdehyde content and myeloperoxidase activity in lung parenchyma at end of 4-h ventilation. (A) Malondialdehyde content in the lung tissues. High-frequency oscillatory ventilation (HFOV) 9 Hz group exhibited significantly lower malondialdehyde activity than that in the HFOV-3 Hz and conventional mechanical ventilation (CMV) group across all three pulmonary areas and in the total lung. (B) Myeloperoxidase activity in the lung tissues. HFOV 9 Hz groups showed significantly reduced myeloperoxidase content across all three pulmonary areas and in the total lung compared with HFOV 3 Hz ventilation. LLD = left lower dorsal lobe; LLV = left low ventral lobe; LMV = left middle ventral lobe. * P < 0.05 and ** P < 0.01 versus LMV. ∆ P < 0.05 and ∆∆ P < 0.01 versus LLV. # P < 0.05 and ## P < 0.01 versus HFOV-3 Hz. § P < 0.05 and §§ P < 0.01 versus CMV.

Malondialdehyde content and myeloperoxidase activity in lung parenchyma at end of 4-h ventilation. (A) Malondialdehyde content in the lung tissues. High-frequency oscillatory ventilation (HFOV) 9 Hz group exhibited significantly lower malondialdehyde activity than that in the HFOV-3 Hz and conventional mechanical ventilation (CMV) group across all three pulmonary areas and in the total lung. (B) Myeloperoxidase activity in the lung tissues. HFOV 9 Hz groups showed significantly reduced myeloperoxidase content across all three pulmonary areas and in the total lung compared with HFOV 3 Hz ventilation. LLD = left lower dorsal lobe; LLV = left low ventral lobe; LMV = left middle ventral lobe. * P < 0.05 and ** P < 0.01 versus LMV. ∆ P < 0.05 and ∆∆ P < 0.01 versus LLV. # P < 0.05 and ## P < 0.01 versus HFOV-3 Hz. § P < 0.05 and §§ P < 0.01 versus CMV.

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