Fig. 2From: Mechanical stretching of the pulmonary vein mediates pulmonary hypertension due to left heart disease by regulating SAC/MAPK pathway and the expression of IL-6 and TNF-αa Establishment of the PH-LHD model. The metal titanium clip (yellow arrow) was located at the ascending aorta of rats in the PH-LHD group by Doppler echocardiography. The PH-LHD model was established, and the position of the titanium clip was shown in the ascending aorta above the coronary artery. b RVP and LAP were determined in PH-LHD model rats. Representative images of RVP and LAP in sham and PH-LHD model rats are shown (P < 0.05). c Doppler echocardiography of left cardiac function in PH-LHD model rats. Representative images of left ventricular dysfunction in rats were assessed by Doppler echocardiography. a Sham model b PH-LHD modelBack to article page