( However ( , ( ( ( NO produced ) ( in ( the body ) ) ) ( ( helps ( regulate ( ( ( cell ( ( function and ) communication ) ) , ) ( particularly ( in ( the ( cardiovascular system ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (ADVP (RB However)) (, ,) (NP (NP (DT NO) (NN produced)) (PP (IN in) (NP (DT the) (NN body)))) (VP (VBZ helps) (VP (VB regulate) (NP (NP (NN cell) (NN function) (CC and) (NN communication)) (, ,) (RRC (ADVP (RB particularly)) (PP (IN in) (NP (DT the) (JJ cardiovascular) (NN system))))))) (. .)))
However, NO produced in the body helps regulate cell function and communication, particularly in the cardiovascular 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)))))) (. .)))