Fig. 3From: 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-αPathological changes in lung tissues in PH-LHD model rats. A. Pathological structures were confirmed by HE staining in sham and PH-LHD model rats. B. IHC experiment was performed to examine the levels of IL-6 and TNF-α in the lung tissues of sham and PH-LHD model rats on day 25 and 35. C. IHC experiments were performed to examine the levels of IL-6 and TNF-α in the pulmonary veins of PH-LHD model ratsBack to article page