A novel and stable "two-hit" acute lung injury model induced by oleic acid in piglets.
A novel and stable "two-hit" acute lung injury model induced by oleic acid in piglets.
复制标题
新型稳定的油酸诱导仔猪“二次打击”急性肺损伤模型
DOI：
10.1186/1751-0147-51-17
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发表时间：
2009-03-30
影响因子：
2.1
通讯作者：
Liu J
中科院分区：
文献类型：
--
作者：
Li X;Liu Y;Wang Q;Zhu Y;Lv X;Liu J
背景
Background
Children are susceptible to pulmonary injury, and acute lung injury (ALI) often results in a high mortality and financial cost in pediatric patients. Evidence has showed that oleic acid (OA) plays an important role in ALI. Therefore, it has special significance to study ALI in pediatric patients by using OA-induced animal models. Unfortunately, the animal model hs a high mortality due to hemodynamic instability. The aim of this study was to establish a novel hemodynamically stable OA-induced ALI model in piglets with two hits.
Methods
18 Chinese mini-piglets were randomized into three groups: group C (received saline-ethanol solution), group T (received OA-ethanol solution in routine administration manner) and group H (received OA-ethanol solution in two-hit manner). Hemodynamic and pulmonary function data were measured. Histopathological assessments were performed.
Results
Two piglets in group T died of radical decline of systemic blood pressure. Group T showed more drastic hemodynamic changes than group H especially during the period of 5 to 30 minutes after OA administration. Both Group T and group H all produced severe lung injury, while group C had no significant pathologic changes. OA-induced hypotension might be caused by pulmonary hypertension rather than comprised left ventricular function.
Conclusion
OA leads to severe pulmonary hypertension which results in hemodynamic fluctuation in OA-induced ALI model. It is the first report on hemodynamic stable ALI animal model in piglets using two-hit method. The two-hit ALI animal model fulfils the ALI criteria and has the following characteristics: hemodynamic stability, stable damage to gas exchange and comparability with pediatric patients in body weight and corresponding age. The two-hit ALI animal model can be used to study the basic mechanism and the therapeutic strategies for pediatric ALI.
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影响因子：
9.6
作者：
Kao, SJ;Wang, D;Chen, HI
通讯作者：
Chen, HI
影响因子：
8.8
作者：
Quinlan, GJ;Lamb, NJ;Gutteridge, JMC
通讯作者：
Gutteridge, JMC
影响因子：
8.8
作者：
Bursten, SL;Federighi, DA;Repine, JE
通讯作者：
Repine, JE
影响因子：
24.3
作者：
Günther, A;Schmidt, R;Seeger, W
通讯作者：
Seeger, W
影响因子：
2.1
作者：
ZETTERSTROM, H;JAKOBSON, S;JANERAS, L
通讯作者：
JANERAS, L