( ( In ( the periphery ) ) ( , ( it ( ( ( is highly ) ( expressed ( ( ( ( ( ( in ( ( platelets and ) ( ( many ( cell types ) ) ( of ( the ( cardiovascular system ) ) ) ) ) ) , ) ( in fibroblasts ) ) , ) and ) ( in ( neurons ( of ( the ( peripheral ( nervous system ) ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN In) (NP (DT the) (NN periphery))) (, ,) (NP (PRP it)) (VP (VBZ is) (ADVP (RB highly)) (VP (VBN expressed) (PP (PP (IN in) (NP (NP (NNS platelets)) (CC and) (NP (NP (JJ many) (NN cell) (NNS types)) (PP (IN of) (NP (DT the) (JJ cardiovascular) (NN system)))))) (, ,) (PP (IN in) (NP (NNS fibroblasts))) (, ,) (CC and) (PP (IN in) (NP (NP (NNS neurons)) (PP (IN of) (NP (DT the) (JJ peripheral) (JJ nervous) (NN system)))))))) (. .)))
In the periphery, it is highly expressed in platelets and many cell types of the cardiovascular system, in fibroblasts, and in neurons of the peripheral nervous system.
(ROOT (S (NP (DT The) (JJ cardiovascular) (NN system)) (VP (VBZ transports) (NP (JJ many) (NNS substances)) (PP (TO to) (CC and) (IN from) (NP (NP (NNS cells)) (PP (IN throughout) (NP (DT the) (NN body)))))) (. .)))