Changes of ET-1 and TNF-? in dog ARF model during bilateral femoral arteriovenous shunt for extracorporeal membrane oxygenation / 西安交通大学学报(医学版)

ABSTRACT

Objective To study the changes of endothelin-1(ET-1) and tumor necrosis factor alpha(TNF?) in lung homogenate and plasm when acute respiratory failure(ARF) animal models are treated by bilateral femoral arteriovenous extracorporeal membrane oxygenation(bAV-ECMO).Methods Ten ARF dog models were treated by the bAV-ECMO.Right atrium blood and lung tissues were collected at different time points,and ET-1 and TNF? were assayed by radioimmunological method.Results ET-1 content in plasm decreased at first,and at 1h it was elevated and at 2h reached the peak.ET-1 content in lung homogenate reached the peak at 2h and then started to decrease.The analysis of variance showed notable differences(P