using an immunohistochemical technique , the development of the cytoskeletal proteins desmin , vimentin , and actin ( using alpha isotype and non-isotype specific antibodies ) was assessed using a semi-quantitative grading system in the pulmonary vascular smooth muscle of nine normal pigs and 19 normal humans at different ages , and in 13 children with pulmonary hypertensive congenital heart disease .
C0021017
isotype
C0003241
antibodies