The pulmonary circulation in acute lung injury: A review of some recent advances

1991 ◽  
Vol 17 (5) ◽  
pp. 254-260 ◽  
Author(s):  
M. Leeman
Keyword(s):  
Acute Lung Injury ◽  
Lung Injury ◽  
Pulmonary Circulation ◽  
Recent Advances

Downregulation of blood and bone marrow neutrophils decreases expression of acute lung injury in sheep

1992 ◽  
Vol 263 (5) ◽  
pp. H1492-H1498
Author(s):  
P. J. McKenna ◽  
D. L. Rosolia ◽  
Y. Ishihara ◽  
K. H. Albertine ◽  
N. C. Staub ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Acute Lung Injury ◽  
Lung Injury ◽  
Peripheral Blood ◽  
Pulmonary Circulation ◽  
Tissue Injury ◽  
Blood Neutrophils ◽  
Superoxide Release

We have shown that infusion of zymosan-activated plasma (ZAP) in sheep causes acute lung injury and downregulates peripheral blood neutrophils in that elicited superoxide release is reduced for at least 24 h after the infusion. The present study was designed to test the following hypotheses: 1) peripheral blood neutrophils are representative of neutrophils marginated in the pulmonary circulation, 2) blood neutrophils are downregulated because neutrophils developing in bone marrow are similarly affected, and 3) downregulated neutrophils have a reduced capacity to produce tissue injury. In a series of experiments in 21 sheep, we showed that elicited superoxide release was similar in peripheral blood neutrophils and in marginated neutrophils washed out of the pulmonary vascular bed. Measurements of superoxide release from blood and bone marrow neutrophils collected 2-24 h after ZAP infusion revealed progressive downregulation with time and greater downregulation of superoxide release in bone marrow neutrophils compared with peripheral blood neutrophils. Finally, after downregulating peripheral blood neutrophils, subsequent infusion of ZAP in conscious sheep produced sequestration of neutrophils in the pulmonary circulation but failed to produce a sustained increase in lung lymph protein clearance. The results suggest that neutrophil downregulation, as measured in vitro, is expressed in vivo as reduced ability of neutrophils to produce tissue injury when challenged by an activating agent.

scholarly journals Pulmonary Circulation in Acute Lung Injury in the Presence of Acute Poisoning by Toxic Substances

2007 ◽  
Vol 3 (3) ◽  
pp. 23
Author(s):  
A. N. Lodyagin ◽  
G. A. Livanov ◽  
I. P. Nikolayeva ◽  
B. V. Batotsyrenov ◽  
G. V. Shestova
Keyword(s):  
Acute Lung Injury ◽  
Lung Injury ◽  
Pulmonary Circulation ◽  
Acute Poisoning ◽  
Toxic Substances

Recent Advances of MicroRNA in Sepsis-associated Acute Lung Injury

2021 ◽  
Vol 3 (1) ◽  
pp. 1
Author(s):  
Haiyan Yin ◽  
Xuehao Lu ◽  
Feng Zhang ◽  
Longzhu Li ◽  
Meilian Li ◽  
...  
Keyword(s):  
Acute Lung Injury ◽  
Lung Injury ◽  
Recent Advances
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