Fig. 3

Histone deacetylases 1 (HDAC1) is up-regulated in monocrotaline (MCT)-induced pulmonary arterial hypertension (PAH) rats. a HDAC1 in the lung tissues from different groups was detected using immunofluorescence staining. b Protein levels of HDAC1/2/3 in the lung tissues from different groups were determined using immunoblotting (n = 5). *P < 0.05 versus control group; #P < 0.05 versus MCT group