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Study on capillary endothelium injury in the lung with ischemia-reperfusion / 中国病理生理杂志
Chinese Journal of Pathophysiology ; (12)1986.
Artigo em Chinês | WPRIM | ID: wpr-517636
ABSTRACT

AIM:

To confirm the effects of capillary endothelium injury in the lung with ischemia reperfusion.

METHODS:

The rabbits pulmonary models of ischemia reperfusion (I-R)injury were established. Plasma nitric oxide and endothelin levels, arterial oxygen tension and wet/dry weight ratios were determined in different periods in control and I-R groups, and the pulmonary ultrastructure abnormities were analyzed under electromicroscope.

RESULTS:

The plasma levels of NO and ET-1 in I-R animals increased significantly ,compared with those in sham treated control groups. The level of ET-1 had significantly negative correlation with PaO 2 and positive correlation with the value of the wet/dry weight ratios. The swelling and karyopyknosis of capillary endothelium in the lung with I-R groups were observed in ischemia periods. The injuries of endotheliums and typeⅠandⅡ alveolar cells in 0 5 h of reperfusion were more severe than those in ischemia time, and the injuries began to repair in 2 h of reperfusion time.

CONCLUSION:

In the I-R group, pulmonary capillary endothelium have been injuried, which may play a prominent role in I-R injury and dysfunction of the lung.

Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Idioma: Chinês Revista: Chinese Journal of Pathophysiology Ano de publicação: 1986 Tipo de documento: Artigo

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Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Idioma: Chinês Revista: Chinese Journal of Pathophysiology Ano de publicação: 1986 Tipo de documento: Artigo